interstate power and light savings reference manual - iowa utility

Interstate Power and Light Savings Reference Manual

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2014 IPL SAVINGS REFERENCE MANUAL

Prepared by

The Cadmus Group, Inc.

For

Interstate Power and Light Company,

An Alliant Energy Company

July 21, 2014

Original: July 21, 2014 Version 1.0

Revised: N/A


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Introduction .................................................................................................................................................. 1

Update Process ......................................................................................................................................... 4

Disclaimer of Warranties and Limitation of Liability ................................................................................ 5

Abbreviations and Acronyms .................................................................................................................... 6

Residential Prescriptive Rebates Program .................................................................................................... 8

HVAC: Central Air Conditioner .................................................................................................................. 9

HVAC: Electronically Commutated Motor (ECM) ................................................................................... 12

HVAC: Furnace ........................................................................................................................................ 14

HVAC: Heat Exchanger (Air-to-Air) .......................................................................................................... 16

HVAC: Heat Pump (Air-Source) ............................................................................................................... 21

HVAC: Heat Pump (Geothermal)............................................................................................................. 24

HVAC: Heat Pump (Split System) ............................................................................................................ 28

HVAC: HVAC System Tune-Up ................................................................................................................. 32

HVAC: Programmable Thermostat .......................................................................................................... 36

HVAC: Room Air Conditioning ................................................................................................................. 39

HVAC: Whole-House Fan ........................................................................................................................ 42

Shell: Insulated Doors ............................................................................................................................. 43

Water Heat: Desuperheater ................................................................................................................... 46

Water Heat: Water Heater ...................................................................................................................... 49

Home Energy Assessments Program .......................................................................................................... 53

HVAC: Duct Sealing and Repair ............................................................................................................... 54

HVAC: Programmable Thermostat .......................................................................................................... 56

Lighting: CFLs .......................................................................................................................................... 59

Plug Load: Advanced Power Strips .......................................................................................................... 61

Shell: Floor Insulation ............................................................................................................................. 63

Shell: Foundation/Basement Wall Insulation ......................................................................................... 66

Shell: Infiltration Control......................................................................................................................... 69

Shell: Roof Insulation .............................................................................................................................. 71

Shell: Wall Insulation............................................................................................................................... 74

Water Heat: Faucet Aerator.................................................................................................................... 77

Water Heat: Low-Flow Showerhead ....................................................................................................... 79

Water Heat: Water Heater Pipe Insulation ............................................................................................. 81


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Water Heat: Water Heater Temperature Setback .................................................................................. 83

Be-Bright Program ...................................................................................................................................... 85

Compact Fluorescent Light (CFL) ............................................................................................................ 86

Light Emitting Diode (LED) ...................................................................................................................... 88

LED Holiday String Light .......................................................................................................................... 90

Appliance Recycling Program ...................................................................................................................... 92

Refrigerator/Freezer Recycling ............................................................................................................... 93

Room Air Conditioner Recycling ............................................................................................................. 95

New Home Construction Program .............................................................................................................. 97

Builder Option Package ........................................................................................................................... 98

Advanced Performance Home Package ................................................................................................ 118

High-Performance Home Package ........................................................................................................ 123

Multifamily Program ................................................................................................................................. 128

Direct-Install: Low-Flow Showerhead ................................................................................................... 129

Direct-Install: Faucet Aerators .............................................................................................................. 131

Direct-Install: Pre-Rinse Sprayer Valve ................................................................................................. 133

Direct-Install: Programmable Thermostat ............................................................................................ 135

Direct-Install: Water Heater Pipe Insulation ......................................................................................... 137

Direct-Install: Water Heater Temperature Setback .............................................................................. 139

Direct-Install: Water Heater Tank Wrap ............................................................................................... 141

Direct-Install: CFLs and LEDs ................................................................................................................. 143

Direct-Install: LED Exit Sign ................................................................................................................... 145

Direct-Install: Advanced Power Strips .................................................................................................. 147

Leave Behind Energy Kit ........................................................................................................................ 149

Multifamily New Construction .............................................................................................................. 151

Weatherization Program........................................................................................................................... 153

EnergyWise Education Program ............................................................................................................... 154

Low-Income Multifamily and Institutional Efficiency Improvements Program ........................................ 155

Home Energy Savers Program................................................................................................................... 156

Nonresidential Prescriptive Rebates Program .......................................................................................... 157

Appliance: Commercial Clothes Washer ............................................................................................... 158

Appliance: Commercial Dishwasher ..................................................................................................... 160


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Cooking: Broiler ..................................................................................................................................... 163

Cooking: Convection Oven .................................................................................................................... 165

Cooking: Conveyor Oven ....................................................................................................................... 167

Cooking: Fryer ....................................................................................................................................... 169

Cooking: Griddle.................................................................................................................................... 171

Cooking: Rotating Rack Oven ................................................................................................................ 173

Cooking: Rotisserie Oven ...................................................................................................................... 175

Cooking: Steam Cooker ......................................................................................................................... 177

Hotel: Hotel Key Card Activated Systems ............................................................................................. 179

HVAC: Air Conditioner Tune-Up ............................................................................................................ 181

HVAC: Air Conditioning ......................................................................................................................... 184

HVAC: Boiler .......................................................................................................................................... 187

HVAC: Boiler Tune-Up Maintenance ..................................................................................................... 189

HVAC: Boiler Vent Damper ................................................................................................................... 191

HVAC: Chiller (Water- or Air-Cooled) .................................................................................................... 193

HVAC: Chiller-Pipe Insulation ................................................................................................................ 197

HVAC: Chiller Tune-Up Maintenance .................................................................................................... 199

HVAC: Duct Insulation ........................................................................................................................... 202

HVAC: Duct Sealing and Repair ............................................................................................................. 205

HVAC: ECM Fan ..................................................................................................................................... 208

HVAC: Furnace ...................................................................................................................................... 210

HVAC: Furnace Tune-Up Maintenance ................................................................................................. 212

HVAC: Air Source Heat Pump ................................................................................................................ 214

HVAC: Geothermal Heat Pump ............................................................................................................. 218

HVAC: Heat Pump Tune-Up Maintenance ............................................................................................ 224

HVAC: Package Terminal Air Conditioner and Heat Pump ................................................................... 228

HVAC: Programmable Thermostat ........................................................................................................ 231

Lighting: Bi-Level Control, Stairwell or Corridor ................................................................................... 234

Lighting: Daylighting Control ................................................................................................................. 236

Lighting: High-Efficiency Metal Halide .................................................................................................. 238

Lighting: High Bay (HID) Delamping ...................................................................................................... 241

Lighting: High-Bay ................................................................................................................................. 243


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Lighting: High-Performance and Reduced Wattage T8 ........................................................................ 246

Lighting: LED Refrigerator Case Light .................................................................................................... 251

Lighting: LED Exit Sign ........................................................................................................................... 253

Lighting: LED and CFL Fixtures .............................................................................................................. 255

Lighting: LED and CFL Lamps ................................................................................................................. 257

Lighting: Metal Halide Lamp Replacement ........................................................................................... 259

Lighting: Occupancy Sensor .................................................................................................................. 261

Lighting: Time Clocks and Timers for Lighting ...................................................................................... 263

Lighting: Traffic Lights ........................................................................................................................... 265

Lighting: T8 or T12 Delamping .............................................................................................................. 267

Motor: Enhanced Motor (Ultra-PE) ...................................................................................................... 269

Motor: Variable-Frequency Drives ........................................................................................................ 274

Office: Computer................................................................................................................................... 276

Office: Network Computer Management ............................................................................................. 278

Office: Server ........................................................................................................................................ 280

Pool: Pool/Spa Cover ............................................................................................................................ 282

Refrigeration: Anti-Sweat Heating Controls ......................................................................................... 284

Refrigeration: ECM on Display Case Evaporator Fans .......................................................................... 286

Refrigeration: High-Efficiency Evaporator Fan Walk-Ins ....................................................................... 288

Refrigeration: Walk-In Evaporator Fan Controller ................................................................................ 290

Refrigeration: Glass Door Refrigerator/Freezer .................................................................................... 292

Refrigeration: Night Covers for Display Cases ...................................................................................... 294

Refrigeration: Scroll Compressor .......................................................................................................... 296

Refrigeration: ENERGY STAR Solid Door Refrigerator/Freezer ............................................................. 298

Refrigeration: Strip Curtains for Walk-Ins ............................................................................................. 300

Refrigeration: Vending Machine Controller .......................................................................................... 302

Refrigeration: Vending Machine ........................................................................................................... 304

Shell: Foundation/Basement Wall Insulation ....................................................................................... 306

Shell: Infiltration Control....................................................................................................................... 309

Shell: Insulated Doors ........................................................................................................................... 311

Shell: Roof Insulation ............................................................................................................................ 314

Shell: Wall Insulation............................................................................................................................. 317


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Water Heat: Condensing Water Heater ................................................................................................ 320

Water Heat: Desuperheater ................................................................................................................. 323

Water Heat: Drainwater Heat Recovery ............................................................................................... 325

Water Heat: Water Heater .................................................................................................................... 327

Business Assessment Program .................................................................................................................. 331

Direct-Install: CFLs ................................................................................................................................. 332

Direct-Install: Faucet Aerators .............................................................................................................. 334

Direct-Install: LED Exit Sign ................................................................................................................... 336

Direct-Install: Low-Flow Showerhead ................................................................................................... 338

Direct-Install: Pre-Rinse Sprayer Valve ................................................................................................. 340

Direct-Install: Programmable Thermostat ............................................................................................ 342

Direct-Install: Vending Machine Controller .......................................................................................... 343

Direct-Install: Water Heater Pipe Insulation ......................................................................................... 345

Direct-Install: Water Heater Temperature Setback .............................................................................. 347

Custom Rebates Program ......................................................................................................................... 349

Commercial New Construction Program .................................................................................................. 351

Agriculture Prescriptive Rebates Program ................................................................................................ 353

Agriculture-Specific: Grain Dryer .......................................................................................................... 354

Agriculture-Specific: Livestock Waterers .............................................................................................. 356

Agriculture-Specific: Low-Pressure Irrigation ....................................................................................... 357

Dairy Equipment: Automatic Milker Takeoff ........................................................................................ 358

Dairy Equipment: Dairy Scroll Compressor ........................................................................................... 359

Dairy Equipment: Heat Reclaimer ......................................................................................................... 361

Dairy Equipment: Milk Precooler—Dairy Plate Cooler ......................................................................... 363

Dairy Equipment: Variable-Speed Drives for Dairy Vacuum Pumps/Milking Machines ....................... 365

HVAC: Air Source Heat Pump ................................................................................................................ 366

HVAC: Heat Pump (Geothermal)........................................................................................................... 369

Lighting: LED and CFL Fixtures .............................................................................................................. 373

Lighting: LED and CFL Lamps ................................................................................................................. 375

Lighting: LED Exit Signs .......................................................................................................................... 377

Lighting: High-Efficiency Metal Halide .................................................................................................. 378

Lighting: Heat Lamps ............................................................................................................................. 380


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Lighting: High Bay (HID) Delamping ...................................................................................................... 382

Lighting: High-Bay Lighting.................................................................................................................... 384

Lighting: High-Performance and Reduced-Wattage T8 Fixtures .......................................................... 386

Lighting: Metal Halide Lamp Replacement ........................................................................................... 390

Lighting: T8 or T12 Delamping .............................................................................................................. 392

Lighting: Time Clocks and Timers for Lighting ...................................................................................... 394

Motors: Enhanced Motors (Ultra-PE) ................................................................................................... 396

Motors: VFDs ........................................................................................................................................ 400

Ventilation: Circulating Fans ................................................................................................................. 402

Ventilation: High-Volume, Low-Speed (HVLS) Fans .............................................................................. 404

Ventilation: High-Efficiency Ventilation System ................................................................................... 406

Appendix A: Peak Coincidence Factors ..................................................................................................... 408

Appendix B: Equivalent Full Load Hours ................................................................................................... 413

Appendix C: Lighting Hours of Operation ................................................................................................. 416

Appendix D: Nonresidential Hot Water Usage ......................................................................................... 417

Appendix E: Effective Useful Life of Measures ......................................................................................... 418

Appendix F: Revision History .................................................................................................................... 426


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Introduction In association with the 2014–2018 Energy Efficiency Portfolio (EEP), the Interstate Power and Light (IPL)

Savings Reference Manual (SRM) provides guidance for measuring the resource savings from standard

energy-efficiency measures. The SRM was developed for estimating annual electric and natural gas

energy savings and coincident peak demand savings for a selection of energy-efficient technologies and

measures.

The savings algorithms provided in this document were developed using industry-accepted methods.

The algorithms were largely guided by the findings of the joint utility Assessment of Energy and Capacity

Savings Potential in Iowa (Statewide Assessment) dated February 28, 2012 and other sources. The

Statewide Assessment is a comprehensive study of energy efficiency and demand response savings

potential in the service territories of Iowa’s three investor-owned utilities: IPL, Black Hills Energy (BHE),

and MidAmerican Energy Company (MEC). The Assessment focused on reporting potential savings over

a 10-year planning horizon, from 2014 to 2023.

To assess the impacts of each measure, and the programs as a whole, algorithms use customer data as

input values. Savings per measure are either deemed or based on engineering algorithms that can be

used to estimate savings based on the information provided by participants on a rebate application

and/or equipment records stored in IPL’s or other organizations’ databases such as ENERGY STAR®, the

Air Conditioning, Heating and Refrigeration Institute (AHRI), and the Consortium for Energy Efficiency

(CEE).

The SRM’s resource energy savings methodologies may be represented in one of three ways: (1) fully

deemed; (2) partially deemed algorithm; or (3) fully calculated algorithms. The majority of the SRM

contains fully deemed and partially deemed algorithms.

1. Fully Deemed: A fully deemed measure receives a stipulated (deemed) savings value. A

measure often has deemed savings when savings have been found to be stable for certain,

standard measure types when they are used in common applications and/or in cases where

collecting participant-specific data for calculating savings is difficult or impossible. Deemed

savings for a given measure may be provided for a range of different application scenarios

such as for specific building types. In cases where fully deemed savings are used in the SRM

the savings are generally based on the Statewide Assessment results.

2. Partially Deemed Algorithm: Algorithms can be used to calculate savings in cases where

input parameters are stipulated or determined based on project-specific conditions.

Partially deemed algorithms are used for measures with commonly accepted formulas and

rigorously reviewed inputs. Partially deemed algorithms allow participant-specific data to be

applied but minimize the data-collection burden by using preapproved, standard inputs for

uncollected variables. Partially deemed algorithms can also prove effective with weather-

dependent measures (such as furnaces) where look-up tables provide variables such as full-

load hours, based on the climate zone.


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3. Fully Calculated Algorithms: Fully calculated algorithms are applied only with custom

measures, where individual projects vary significantly in terms of installed measure

parameters and other factors that affect energy use and savings.

The 2014–2018 EEP is composed of 25 programs targeting single family and multifamily residential, low-

income residential, commercial, industrial, and agriculture customers. Of those 25 programs, 15 offer

direct financial incentives, direct installation measures, and/or technical assistance for customer actions

to improve building efficiency and two programs offer incentives for customer actions to reduce peak

demand. However, the SRM addresses only the 15 energy-efficiency programs that generate measure-

based savings. IPL designed its Energy-Efficiency Portfolio to offer customers in every sector the

flexibility to participate at many levels, based on their individual needs and building type.

The SRM algorithms support programs within the EEP where fully and partially deemed algorithms are

used to estimate savings. The savings algorithms are incorporated into IPL’s customized energy-

efficiency tracking system, Tool for Reporting Energy Efficiency Savings (TREES), to calculate and track

rebate payments and impacts. TREES receives data feeds from IPL’s customer billing system, which

ensures the customer’s account is active and that the service type (electric, natural gas, or both) is

accurately reflected when calculating measure savings.

In addition to the SRM, TREES relies on energy-savings tracking and documentation by program

implementation contractors, such as WECC, Michaels Engineering, CLEAResult, and Iowa Community

Action Program (CAP) agencies, as shown in Table 1.

Table 1. EEP Programs Included in the Savings Reference Manual

Energy-Efficiency Portfolio Energy Savings Reference Savings In SRM (Yes/No)

Residential Prescriptive Rebates SRM—IPL TREES Yes

Home Energy Assessments SRM—WECC/IPL Yes

Be-Bright SRM—WECC/IPL Yes

Appliance Recycling SRM—IPL Yes

New Home Construction SRM—IPL TREES Yes

Multifamily SRM—IPL Yes

Weatherization IPL/CAP Agency No

EnergyWise Education Cadmus Annual Evaluation No

Low-Income Multifamily and Institutional Efficiency Improvements

IPL/CAP Agency No

Home Energy Savers IPL/CAP Agency No

Nonresidential Prescriptive Rebates SRM—IPL TREES Yes

Business Assessments SRM—CLEAResult/IPL Yes

Custom Rebates Technical Guide Book—Michaels Engineering

No

Commercial New Construction Michaels Engineering No

Agriculture Prescriptive Rebates SRM—IPL TREES Yes

All SRM measures are accompanied by Excel® spreadsheets that provide additional information such as


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measure qualifications, default savings calculations, and assumption source documentation. These IPL

spreadsheet workbooks are available upon request.


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Update Process

Annual updates to this SRM will be published prior to the filing of IPL’s annual report each year to

reflect the electric and natural gas energy savings assumptions in place for the year. The updates will be

incorporated in the original document and changes will be indicated in Appendix F: Revision History

table. This regular update process is intended to ensure the SRM remains relevant and useful by:

• Presenting validated savings calculations for any new measures added to the IPL programs since

the previous year’s update;

• Eliminating measures that are no longer being offered by IPL; and

• Updating information on existing measures to reflect new research findings and technology

changes.


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Disclaimer of Warranties and Limitation of Liability

This guide is published for the convenience of the user. Its contents are based on the experiences and judgment of others, and may not be applicable to individual users in individual circumstances. THIS INFORMATION SHOULD NOT BE CONSIDERED AS ALL-INCLUSIVE OR COVERING ALL CONTINGENCIES. In no event will Alliant Energy Corporation, or its subsidiaries, affiliates, or vendors be responsible to the user in contract, in tort (including negligence), in strict liability, or otherwise for any special, direct, indirect, incidental, or consequential damage or loss whatsoever; or claims against the user by its customers resulting from use of this guide. Information in this guide is subject to change without notice. No part of this guide may be copied, reproduced, republished, uploaded, posted, distributed, or transmitted in any form or by any means, electronic or mechanical, for any purpose, without permission. Copyright 2014 Alliant Energy All rights reserved.


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Abbreviations and Acronyms

ACEEE American Council for an Energy-Efficient Economy

ADS aerosol-based ductwork sealing

AFUE annual fuel utilization efficiency

AHRI Air-Conditioning, Heating, and Refrigeration Institute

AMCA Air Movement and Control Association

ASHP air-source heat pump

ASHRAE American Society of Heating and Air-Conditioning Engineers

BESS Bioenvironmental and Structural Systems

BHE Black Hills Energy

BOP builder option package

CAC central air conditioner

CAP capacity

CBECS Commercial Buildings Energy Consumption Survey

CDD cooling degree days

CF coincidence factor

CFL compact fluorescent lamp

CFR Code of Federal Regulations

CL&P Connecticut Light & Power

COP coefficient of performance

DEER Database for Energy Efficient Resources

DHR Department of Human Rights

DOE Department of Energy

DSM demand-side management

DX direct expansion

ECM electronically commutated motor

EEP energy efficiency portfolio

EER energy efficiency ratio

EF energy factor

EFLH equivalent full load hours

EISA Energy Independence and Security Act

EPA Environmental Protection Agency

EPAct Energy Policy Act

eQUEST QUick Energy Simulation Tool

FAF forced air furnace

FEMP Federal Energy Management Program

FPL federal poverty level

GPM gallons per minute

GSHP geothermal (ground) source heat pump

HDD heating degree days

HERS home energy rating system

HES home energy savers

HID high-intensity discharge

HP high-performance

hp horsepower

HPWH heat pump water heater

HSPF heating seasonal performance factor

HVAC heating, ventilation, and air conditioning

IECC International Energy Conservation Code


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IPL Interstate Power and Light

IUA Iowa Utility Association

LBNL Lawrence Berkeley National Laboratory

LED Light emitting diode

MBtu 1000 British thermal units

MEC MidAmerican Energy Company

MEF modified energy factor

MIEI multifamily and institutional efficiency improvements

NEMA National Electrical Manufacturers Association

NREL National Renewable Energy Laboratory

NY TRM New York Technical Resource Manual

OH TRM Ohio Technical Resource Manual

PA TRM Pennsylvania Technical Resource Manual

PSC permanent split capacitor

PTAC package terminal air conditioner

PTHP package terminal heat pump

QI quality installation

RAC room air conditioner

RPM revolutions per minute

RTF regional technical forum

RW reduced wattage

S/P scotopic/photopic

SAVE System Adjustment and Verified Efficiency

SEER seasonal energy efficiency ratio

SF savings factor

SL standby loss

SP shaded pole

SRM savings reference manual

TE thermal efficiency

TEFC totally enclosed fan cooled

TMY typical meteorological year

TREES Tool for Reporting Energy Efficiency Savings

TRM technical resource manual

UES unit energy savings

UI United Illuminating Company

WF water factor

WM wattage multiplier


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Residential Prescriptive Rebates Program Table 2. Residential Prescriptive Rebates Program Overview

Eligible Customers

Electric Measures Natural Gas Measures

Customer Class Residential electric Residential natural gas

Customer Status All All

Building Type Single-family home; manufactured home;

multifamily home

Single-family home; manufactured home;

multifamily home

Building Vintage All All

Geography IPL’s Iowa service territory IPL’s Iowa service territory


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HVAC: Central Air Conditioner

Measure Description Residential purchase of split-system central air conditioning (CAC).

Fuel Electric

End Use HVAC

Baseline Equipment Central air conditioner system, compliant with the federal standard; with a minimum seasonal energy-efficiency ratio (SEER)/energy-efficiency ratio (EER) of 13.0/11.2.

Efficiency Qualification Central air conditioner system with a minimum SEER/EER of 14.5/12 (split-system). Must be (System Adjustment and Verified Efficiency) SAVE installed. Same efficiency specifications as ENERGY STAR or better.

Required Rebate Application Inputs

-Equipment size (in MBtuh or tons). -Efficiency (in SEER and/or EER).

Market Opportunity Replace on Burnout, Early Replacement

Sector(s) Residential

Program Residential Prescriptive Rebates

ANNUAL ENERGY-SAVINGS ALGORITHM:

Electric Savings kWh—Central Air Conditioner <65

MBtuh

Where:

SEERBase = Seasonal Energy Efficiency Ratio federal baseline = 13 SEEREff = Seasonal Energy Efficiency Ratio of new high-efficiency system = Range (14.5 to 30)

CAP = Capacity of cooling system in MBtuh (Tons x 12) = Range (4 to 65) EFLHC = Equivalent Full Load Hours of cooling = See Table 3

Unit = Number of rebated units SF = Savings factor for quality installation = 10.5%

ANNUAL ENERGY-DEMAND ALGORITHM:

Electric Demand Savings Peak kW—Central Air Conditioner <65

MBtuh


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Where: EERBase = Energy Efficiency Ratio baseline = 11.2

EEREff = Energy Efficiency Ratio of new high-efficiency system = Range (12 to 20)

CAP = Capacity of cooling system in MBtuh CAPMBtuh = CAPtons × 12

EFLHC = Equivalent Full Load Hours of cooling = See Table 3 CF = Peak Coincidence Factor = See Table 4

Unit = Number of rebated units SF = Savings factor for quality installation = 10.5%

ALGORITHM VARIABLES:

Table 3. Central Air Conditioner Equivalent Full Hours (EFLH) of Cooling

Building Type Vintage* End Use Cooling Load Hours

(EFLHc)

Manufactured Existing Cool Central 764

Manufactured New Cool Central 449

Multifamily Existing Cool Central 650

Multifamily New Cool Central 445

Single-family Existing Cool Central 811

Single-family New Cool Central 484

Residential Residential Cool Central 794

*Vintage new construction refers to homes built during and after 2009, while vintage existing construction represents pre-2009 building construction.

Table 4. Central Air Conditioner Peak Coincidence Factor

End Use Manufactured Multifamily Single-family Residential

Cooling 0.00097871 0.00095662 0.00101125 0.001004888

VARIABLE SOURCES:

Table 5. Central Air Conditioner Algorithm Sources

Algorithm Inputs Algorithm Sources

SEERBase 13 SEER: Federal Code, 2006 and 2015, 10 CFR 430.32(c)(2) and 10 CFR 430.32(c)(3).

SEEREff Entered from application form or Air-Conditioning, Heating, and Refrigeration Institute (AHRI) database. Range based on AHRI database; highest SEER listed is 26 as of August 2013.

CAP Entered from application form or AHRI database.

SF Based on proper refrigerant charge, evaporator airflow, and unit sizing.

EERBase 11.2 EER: Calculated from SEERBase, methodology from National Renewable Energy Laboratory (NREL) Building America Research Benchmark Definition 2009, Equation 4: EER = -0.02×SEER2+1.12 × SEER, http://www.nrel.gov/docs/fy10osti/47246.pdf

EEREff Entered from application form or AHRI database. Range based on AHRI database; highest EER listed is 18, as of August 2013.

Table 3. Central Air Conditioner Equivalent Full Hours (EFLH) of Cooling

Inferred from the 2011 Assessment of Potential.

http://www.nrel.gov/docs/fy10osti/47246.pdf


11


Table 4. Central Air Conditioner Peak Coincidence Factor



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HVAC: Electronically Commutated Motor (ECM)

Measure Description Energy and demand saving are captured through reductions in fan power due to improved motor efficiency and variable flow operation.

Fuel Electric

End Use HVAC

Baseline Baseline based on 2003 Wisconsin furnace study. Cooling degree days (CDDs) and heating degree days (HDDs) based on the reference city of Des Moines, IA. Single-family segment.

Efficiency Qualification Installed on qualifying CAC, furnace, or ASHP. For new installations only.


Heating system type Cooling system type

Market Opportunity New Installations Only




Electric Savings kWh—ECM Motor—Heating System

Where: Heating Savings

= ECM heating season kWh savings = See Table 6

Unit = Number of rebated units

Table 6. ECM Heating Season kWh Savings

Building Type Vintage* ECM Heating Savings (kWh)

Manufactured Existing 263

Manufactured New 196

Multifamily Existing 187

Multifamily New 129

Single-family Existing 313

Single-family New 262 *Vintage new construction refers to homes built during or after 2009; existing construction represents pre-2009 building construction.

Electric Savings kWh—ECM Motor—Cooling System

Where: Cooling Savings

= ECM cooling season kWh savings = See Table 7



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Table 7. ECM Cooling Season kWh Savings

Building Type Vintage* ECM Cooling Savings (kWh)

Manufactured Existing 89

Manufactured New 66

Multifamily Existing 63

Multifamily New 43

Single-family Existing 105

Single-family New 88 *Vintage new construction refers to homes built during or after 2009; existing construction represents pre-2009 building construction.


ECM Motor—Peak kW

Where:

Annual kWh = Cooling savings = See “Electric Savings kWh—ECM Motor-Cooling System” calculation above

CF = Peak Coincidence Factor = See Table 8

Table 8. Peak Coincidence Factor


Cooling 0.00097871 0.00095662 0.00101125 0.001004888

VARIABLE SOURCES:

Table 9. ECM Motor Algorithm Sources


ECM Heating kWh Savings Based on 2003 Wisconsin furnace study, weighted by HDD/CDD for Des Moines, IA.

ECM Cooling kWh Savings Based on 2003 Wisconsin furnace study, weighted by HDD/CDD for Des Moines, IA.

Peak Coincidence Factor Inferred from the 2011 Assessment of Potential.


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HVAC: Furnace

Measure Description Residential purchase of an energy-efficient furnace.

Fuel Gas

End Use HVAC

Baseline Equipment Furnace compliant with 1987 National Standard, with AFUE of 78%.

Efficiency Qualification -Furnace that is 94% AFUE–95% AFUE. Quality Installation (QI) required. -Furnace that is 96% AFUE or higher. QI required.


-Equipment size (in MBtuh). -Efficiency (AFUE).

Market Opportunity Replace on Burnout; Early Replacement




Gas Savings Therms—Furnace <225 MBtuh

Where:

AFUEBase = Annual Fuel Utilization Efficiency for the baseline efficiency furnace

= 78%

AFUEEff = Annual Fuel Utilization Efficiency for new high-efficiency furnace = Range (94% to 99%)

CAP = Input capacity of heating system in MBtuh = Range (28 to 225) EFLHH = Equivalent Full Load Hours of heating = See Table 10

Unit = Number of rebated units 100 = Conversion factor from MBtuh to therms = 100

SF = Savings factor for quality installation = 2%


Gas Demand Savings Peak Therms—Furnace <225 MBtuh

Where:



15


Table 10. Furnace EFLH of Heating

Building Type Vintage* End Use Equivalent Full Load Hours of Heating—

EFLHH

Manufactured Existing Heat Central Furnace 627

Manufactured New Heat Central Furnace 452

Multifamily Existing Heat Central Furnace 520

Multifamily New Heat Central Furnace 371

Single-family Existing Heat Central Furnace 612

Single-family New Heat Central Furnace 532

Residential Residential Heat Central Furnace 603 *Vintage new construction refers to homes built before or during 2009; existing construction represents pre-2009 building

construction.

Table 11. Furnace Peak Coincidence Factor


Cooling 0.00934793 0.00903212 0.00970261 0.009615235

VARIABLE SOURCES:

Table 12. Furnace Algorithm Sources


AFUEBase 1987 National Standard (newer standards have failed to be enacted—Energy Independence and Security Act [EISA] 2007).

AFUEEff Entered from application form. Range based on AHRI database; highest AFUE listed is 98.5%.

CAP Entered from application form. Range based on AHRI database; lowest output heating capacity listed is 28 MBtuh.

SF Based on proper airflow, vent sizing, and control settings; Cadmus assumption.

Table 10. Furnace EFLH of Heating


Table 11. Furnace Peak Coincidence Factor



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HVAC: Heat Exchanger (Air-to-Air)

Measure Description An Air-to-Air Heat Exchanger saves energy in a home ventilation system by capturing heat from exhaust air before it is ventilated outside.

Fuel Electric/Gas

End Use HVAC

Baseline Equipment Air-to-Air Heat Exchanger compliant with federal code, 2006 and 2015, 10 CFR 430.32(c)(2) and 10 CFR 430.32(c)(3).

Efficiency Qualification New construction home with air-to-air heat exchanger. GSHPs are not applicable for air-to-air exchangers.


-Heating system type (gas furnace, ASHP, CAC, and electric furnace). -Heating system capacity (MBtuh).

Market Opportunity New Construction



ANNUAL ENERGY-SAVINGS ALGORITHMS:

Electric Savings kWh—Air-to-Air Heat Exchanger—ASHP

Where:

EFLHH = Equivalent Full Load Hours of heating for ASHP for single-family home

= See Table 13

HSPFBase = Heating Seasonal Performance Factor (Btu/Wh-h), using application data or use federal baseline as proxy

= 7.7* 8.2**

SFH = Savings Factor for heating = 10% CAPH = Capacity of heating system in MBtuh (Tons x 12) = Range (4 to 65) Unit = Number of rebated units

EFLHC = Equivalent Full Load Hours of cooling = See Table 14

SEERBase = Seasonal Energy Efficiency Ratio (Btu/Wh-h), using application data or the federal baseline as a proxy

= 13* 14**

SFC = Savings Factor for cooling = 9% CAPC = Capacity of cooling system in MBtuh (Tons x 12) = Range (4 to 65)

* Before 1/1/15 ** After 1/1/15 Federal Code Change


17

Table 13. EFLH of Cooling for Air-Source Heat Pump for Single-family Home

Building Type Vintage End Use Cooling Load Hours—EFLHc

Single-family New Heat Pump 484

Table 14. EFLH of Heating for Air-Source Heat Pump for Single-family Home

Building Type Vintage End Use Heating Load Hours—EFLHH

Single-family New Heat Pump 2,160

Electric Savings kWh—Air-to-Air Heat Exchanger—CAC

Where: EFLHC = Equivalent Full Load Hours of cooling = See Table 15

SEERBase = Seasonal Energy Efficiency Ratio (Btu/Wh-h), using application data or the federal baseline as a proxy

= 13

SFC = Savings Factor for cooling = 9% CAPC = Capacity of cooling system in MBtuh (Tons x 12) = Range (4 to 65) Unit = Number of rebated units

Table 15. EFLH of Cooling

Building Type Vintage End Use Cooling Load Hours—EFLHc


Electric Savings kWh—Air-to-Air Heat Exchanger—Electric Furnace

Where:

SFH = Savings Factor for heating = 10% Unit = Number of rebated units

EFLHH = Equivalent Full Load Hours of heating for electric furnace for single-family home

= See Table 16

COPBase = Coefficient of Performance of baseline system = 1.00 3.412 = 1 Watt = 3.412 Btu per hour CAPH = Capacity of heating system in MBtuh = Range (0 to 200)


18

Table 16. EFLH of Heating for Electric Furnace for Single-family Home

Building Type Vintage End Use* Heating Load Hours—EFLHH

Single-family New Heat Pump 2,160 * This assumes the electric resistance heat EFLH is the same as the heat pump heating EFLH.

Gas Savings Therms—Air-to-Air Heat Exchanger—Gas Furnace

Where:

EFLHH = Equivalent Full Load Hours of heating for gas furnace for single-family home

= See Table 17

100 = Conversion factor from MBtuh to therms = 100 SFH = Savings Factor for heating = 10% CAPH = Capacity of heating system in MBtuh = Range (28 to 225) Unit = Number of rebated units

Table 17. EFLH of Heating for Gas Furnace for Single-family Home

Building Type Vintage End Use Heating Load Hours—EFLHH

Single-family New Heat Central Furnace 532

ANNUAL ENERGY-DEMAND ALGORITHMS:

Electric Demand Savings Peak kW—Air-to-Air Heat Exchanger—ASHP and CAC

Where:

EFLHC = Equivalent Full Load Hours of cooling = See Table 15

EERBase = Energy Efficiency Ratio of baseline efficiency system from application

= See Table 18

SFC = Savings Factor for cooling = 9% CAPC = Capacity of cooling system in MBtuh (Tons x 12) = Range (4 to 65)

CF = Peak Coincidence Factor = See Table 19 Unit = Number of rebated units

Table 18. Energy Efficiency Ratio of Baseline Efficiency System

ASHP Before 1/1/15 ASHP After 1/1/15 CAC

11.2 11.8 11.2


19


Cooling System Single-family

Cooling 0.00101125

Electric Demand Savings Peak kW—Air-to-Air Heat Exchanger—Electric Furnace

Gas Demand Savings Peak Therms—Air-to-Air Heat Exchanger—Gas Furnace

Where:



End Use Single-family

Central Heat 0.00970261

VARIABLE SOURCES:

Table 21. Air-to-Air Heat Exchanger Algorithm Sources


EFLHC Inferred from the 2011 Assessment of Potential.

EFLHH Inferred from the 2011 Assessment of Potential.

SEERBase Application data or federal baseline as proxy: Federal Code, 2006 and 2015, 10 CFR 430.32(c)(2) and 10 CFR 430.32(c)(3).

HSPFBase Application data or federal baseline as proxy: Federal Code, 2006 and 2015, 10 CFR 430.32(c)(2) and 10 CFR 430.32(c)(3).

SFC REM Rate modeling done for Minnesota Sustainable Housing Initiative, http://www.mnshi.umn.edu/kb/scale/hrverv.html

SFH REM Rate modeling done for Minnesota Sustainable Housing Initiative, http://www.mnshi.umn.edu/kb/scale/hrverv.html

CF Inferred from the 2011 Assessment of Potential.

COPBase Assume electric resistance heater to have a COP of 1.0.

http://www.mnshi.umn.edu/kb/scale/hrverv.html

http://www.mnshi.umn.edu/kb/scale/hrverv.html


20


CAPH

(Gas Savings Therms—Air-to-Air Heat Exchanger—Gas Furnace)

Range based on AHRI database; lowest output heating capacity listed is 28 MBtuh.

AFUE (Gas Savings Therms—Air-to-Air Heat Exchanger—Gas Furnace)

Assume new construction installs a minimum of 90% AFUE.


21

HVAC: Heat Pump (Air-Source)

Measure Description Residential purchase of Air-Source Heat Pump.

Fuel Electric

End Use HVAC

Baseline Equipment Air-Source Heat Pump compliant with Federal Code, 2006 and 2015, 10 CFR 430.32(c)(2) and 10 CFR 430.32(c)(3).

Efficiency Qualification

Air-Source Heat Pump system that is minimum of SEER/EER 14.5/12 and heating and seasonal performance factor (HSPF) 8.2. Must be SAVE installed. Same efficiency specifications as ENERGY STAR or better. Energy qualifications will be reviewed to account for the January 1, 2015, code update.


-Equipment size (heating and cooling capacity in MBtuh or tons). -Efficiency (in SEER and/or EER, HSPF and/or COP). -Installation date.




ANNUAL ENERGY SAVINGS ALGORITHM:

ASHP <65 MBtuh—SEER Rated

Where:

SEERBase = Seasonal Energy Efficiency Ratio federal baseline = 13* 14**

SEEREff = Seasonal Energy Efficiency Ratio of new high-efficiency system

= Range (14.5 to 30)

CAPC = Capacity of cooling system in MBtuh (Tons x 12) = Range (4 to 65) EFLHC = Equivalent Full Load Hours of cooling = See Table 22

Unit = Number of rebated units SFC = Cooling savings factor for quality installation = 10.5%

HSPFBase = Heating Seasonal Performance Factor federal baseline = 7.7* 8.2**


22

HSPFEff = Heating Seasonal Performance Factor of new high-efficiency system

= Range (7.8 to 15)

CAPH = Capacity of heating system in MBtuh (Tons x 12) = Range (4 to 65) EFLHH = Equivalent Full Load Hours of heating = See Table 23

SFH = Heating savings factor for quality installation = 11.8% *Before 1/1/2015 **After 1/1/2015


ASHP <65 MBtuh—SEER Rated

Where:

EERBase = Energy Efficiency Ratio baseline = 11.2 EEREff = Energy Efficiency Ratio of new high-efficiency system = Range (12 to 20)



Table 22. Air-Source Heat Pump EFLH of Cooling

Building Type Vintage* End Use Cooling Load Hours—EFLHc







Residential Residential Cool Central 794 * Vintage new construction refers to homes built during or after 2009; existing construction represents pre-2009 building construction.


23

Table 23. Air-Source Heat Pump EFLH of Heating

Building Type Vintage* End Use Heating Load Hours—EFLHH

Manufactured Existing Heat Pump 2,401

Manufactured New Heat Pump 2,019

Multifamily Existing Heat Pump 1,846

Multifamily New Heat Pump 1,561

Single-family Existing Heat Pump 2,272


Residential Residential Heat Pump 2,269 * Vintage new construction refers to homes built during or after 2009; existing construction represents pre-2009 building construction.

Table 24. Air-Source Heat Pump Peak Coincidence Factor


Cooling 0.00097871 0.00095662 0.00101125 0.001004888

VARIABLE SOURCES:

Table 25. Air-Source Heat Pump Algorithm Sources


SEERBase Federal Code, 2006 and 2015, 10 CFR 430.32(c)(2) and 10 CFR 430.32(c)(3).

SEEREff Entered from application form or AHRI database. Range based on AHRI database; highest SEER listed is 26 as of August 2013.

CAPC Entered from application form or AHRI database.

SFC Based on proper refrigerant charge, evaporator airflow, unit sizing, and controls optimization.

HSPFBase Federal Code, 2006 and 2015, 10 CFR 430.32(c)(2) and 10 CFR 430.32(c)(3).

HSPFEff Entered from application form or AHRI database. Range based on AHRI database; highest HSPF listed is 13 as of August 2013.

CAPH Entered from application form or AHRI database.

SFH Based on proper refrigerant charge, evaporator airflow, unit sizing, and controls optimization.

EERBase 11.2 EER: Calculated from SEERBASE, methodology from NREL Building America Research Benchmark Definition 2009, Equation 4: EER = -0.02×SEER2+1.12 × SEER, http://www.nrel.gov/docs/fy10osti/47246.pdf

EEREff Entered from application form or AHRI database. Range based on AHRI database; highest EER listed is 18 as of August 2013.

Table 22. Air-Source Heat Pump EFLH of Cooling


Table 23. Air-Source Heat Pump EFLH of Heating


Table 24. Air-Source Heat Pump Peak Coincidence Factor




24

HVAC: Heat Pump (Geothermal)

Measure Description Residential installation of Geothermal Heat Pump.

Fuel Electric

End Use HVAC

Baseline Equipment Standard efficiency ASHP compliant with Federal Code, 2006 and 2015, 10 CFR 430.32(c)(2) (converted HSPF to COP, dividing HSPF by 3.412).

Efficiency Qualification Tier 1 Geothermal Heat Pump that is EER 14.0 and 3.0 COP. Tier 2 Geothermal Heat Pump that is EER 18.0 and 4.0 COP. Tier 3 Geothermal Heat Pump that is EER 23.0 and 5.0 COP.


-Application Type (Water-to-Water, Water-to-Air, Direct Geoexchange) -Equipment Type (Water-Loop Heat Pump, Ground-Water Heat Pump, Ground-Loop Heat Pump) -System Type (Open Loop, Closed Loop) -Equipment Size (in MBtuh or Tons) -Efficiency (EER and COP) -Installation date -Variable Speed Geothermal systems (Y/N)





Electric Savings kWh—Geothermal Heat Pump—Single/Constant Speed

Where:

EERBase = Energy Efficiency Ratio federal baseline = 11.2* 11.8**

EERFL-Eff = Rated full load Energy Efficiency Ratio of high-efficiency system = See Table 26 CAPFL-C = Rated full load capacity of cooling system in MBtuh (Tons × 12) = Range (4 to 240) EFLHC = Equivalent Full Load Hours of cooling = See Table 27


COPBase = Coefficient of Performance of baseline system = 2.26* 2.40**

COPFL-Eff = Rated full load Coefficient of Performance of efficient system = See Table 26 CAPH = Rated full load capacity of heating system in MBtuh (Tons × 12) = Range (4 to 240)

EFLHH = Equivalent Full Load Hours of heating = See Table 28 3.412 = Conversion factor from Btuh to watts = 3.412

*Before 1/1/2015 **After 1/1/2015 Federal Code Change


25

Electric Savings kWh—Geothermal Heat Pump—Variable Speed

Where:

PLFH = Part load heating mode operation factor where heating mode the GSHP operates 50% of the time at full load (less efficient) and 50% at partial load (more efficient).

= 0.5

FLFH = Full load heating mode operation factor where heating mode the GSHP operates 50% of the time at full load (less efficient) and 50% at partial load (more efficient).

= 0.5

PLFC = Part load cooling mode operation factor where cooling mode the GSHP operates 15% of the time at full load (less efficient) and 85% at partial load (more efficient).

= 0.85

FLHC = Full load cooling mode operation factor where cooling mode the GSHP operates 15% of the time at full load (less efficient) and 85% at partial load (more efficient).

= 0.15

CAPFL-C = Rated full load capacity of cooling system in MBtuh = Range (4 to 240) CAPFL-H = Rated full load capacity of heating system in MBtuh = Range (4 to 240)

EERBase = Energy Efficiency Ratio of baseline efficiency system in [Btu/W-h] = 11.2* 11.8**

EERPL-Eff = Part Load Energy Efficiency Ratio of new high efficiency system in [Btu/W-h]

EERFL-Eff = Full Load Energy Efficiency Ratio of new high efficiency system in [Btu/W-h]

COPBase = Coefficient of Performance of baseline system in [Btu/W-h] = 2.26* 2.40**

COPPL-Eff = Rated part load Coefficient of Performance of new high efficiency system in [Btu/W-h]

COPFL-Eff = Rated full load Coefficient of Performance of new high efficiency system in [Btu/W-h]

EFLHC = Equivalent Full Load Hours of Cooling = See Table 27 EFLHH = Equivalent Full Load Hours of Heating = See Table 28 3.412 = Conversion Btuh per watt = 3.412

Unit = Number of Rebated Units *Before 1/1/2015 **After 1/1/2015 Federal Code Change


26


Electric Demand Savings Peak kW—Geothermal Heat Pump

Where:



Table 26. Geothermal Heat Pump Efficient System Energy Efficiency Ratio and Coefficient of Performance

GSHP Type Application Type Minimum

EEREff Maximum

EEREff Minimum

COPEff Maximum

COPEff

Water-Loop Heat Pump Water-to-Air 14.0 27.2 3.0 9.4

Ground-Water Heat Pump Water-to-Air 14.0 59.7 3.0 7.4

Ground-Loop Heat Pump Water-to-Air 14.0 46.2 3.0 6.2

Water-Loop Heat Pump Water-to-Water 14.0 18.2 3.0 5.6

Ground-Water Heat Pump Water-to-Water 14.0 27.6 3.0 4.8

Ground-Loop Heat Pump Water-to-Water 14.0 24.3 3.0 4.0

Direct Geoexchange N/A 14.0 24.4 3.0 4.4

Table 27. Geothermal Heat Pump EFLH of Cooling

Building Type Vintage* End Use Cooling Load Hours—

EFLHc








Table 28. Geothermal Heat Pump EFLH of Heating








Residential Residential Heat Pump 2,269 * Vintage new construction refers to homes built during or after 2009; existing construction represents pre-2009 building construction.


27

Table 29. Geothermal Heat Pump Peak Coincidence Factor


Cooling 0.00097871 0.00095662 0.00101125 0.001004888

VARIABLE SOURCES:

Table 30. Geothermal Heat Pump Algorithm Sources


EERBase Calculated from SEERBASE, methodology from NREL Building America Research Benchmark Definition 2009, Equation 4: EER = -0.02×SEER2+1.12 × SEER. SEER based on Federal Code, 2006 and 2015, 10 CFR 430.32(c)(2) and 10 CFR 430.32(c)(3).

EERFL-Eff Entered from application form or AHRI database.

CAPFL-C Entered from application form or AHRI database. For heat pumps larger than 65 MBtuh, it is assumed multiple air-source heat pumps are installed that are less than 65 MBtuh maintaining the same baseline.

COPBase Federal Code, 2006 and 2015, 10 CFR 430.32(c)(2) (converted HSPF to COP, dividing HSPF by 3.412).

COPFL-Eff Entered from application form or AHRI database.

CAPFL-H Entered from application form or AHRI database. For heat pumps larger than 65 MBtuh, it is assumed multiple air-source heat pumps are installed that are less than 65 MBtuh maintaining the same baseline.

PLFH Based on Cadmus analysis of the relationship between part- and full-load capacities from building simulations of BEopt (Building Energy Optimization) to generate the energy models. The models were calibrated using Cadmus metered data of 13 high-efficiency multi-stage GSHP models functioning in both part- and full-loads.

FLFH

PLFC

GSHPs produce higher cooling capacity than heating capacity. A 4-ton GSHP might produce 50,000 BTUs of cooling but only 37,400 BTUs of heating at peak cooling and heating conditions, respectively. In Des Moines, homes demand more heating than cooling. This means that the GSHP must run longer at full-load to heat a home, but can meet the homes cooling load with less capacity. As a result, the part-load adjustment has a proportionally larger impact on the cooling season usage. Based on Cadmus analysis of the relationship between part- and full-load capacities from building simulations of BEopt (Building Energy Optimization) to generate the energy models. The models were calibrated using Cadmus metered data of 13 high-efficiency multi-stage GSHP models functioning in both part- and full-loads.

FLFC

EERPL-Eff Use the rated part load efficiency from application form or AHRI database

COPPL-Eff Use the rated part load efficiency from application form or AHRI database


Minimum range based on equipment qualifications. Maximum range based on AHRI database and rounded up by 15%, as of September 2013.

Table 27. Geothermal Heat Pump EFLH of Cooling


Table 28. Geothermal Heat Pump EFLH of Heating


Table 29. Geothermal Heat Pump Peak Coincidence Factor



28

HVAC: Heat Pump (Split System)

Measure Description Residential purchase of Mini-Split Heat Pump (whole house or supplemental add-on).

Fuel Electric

End Use HVAC

Baseline Equipment Electric resistance, electric forced air furnace, ASHP, room AC, CAC, new construction, or other.


Whole-House Mini-Split Heat Pump Energy: -Mini-Split Heat Pump that is SEER/EER 15/12 and HSPF 8.5. -Minimum of 12,000 Btuh (outdoor unit). -Must heat and cool for the use of heating the whole home. -Must be inverter based. -Cooling-only systems are not eligible. Supplemental (add-on) Mini-Split Heat Pump Energy: -Mini-Split Heat Pump that is SEER/EER 15/12 and HSPF 8.5. -Applicable for add-on or supplement heating and cooling for individual room(s). -Must be inverter based. -Cooling-only systems are not eligible.


-Equipment size of outdoor unit (heating and cooling capacity in MBtuh or tons). -Efficiency (in SEER and/or EER, HSPF and/or COP). -Installation date.

Market Opportunity Replace on Burnout; Early Replacement; Retrofit




Electric Savings kWh—Ductless Heat Pump <65 MBtuh—Whole House/Supplemental Systems

Where:

SEERBase = Seasonal Energy Efficiency Ratio federal baseline = See Table 31 SEEREff = Seasonal Energy Efficiency Ratio of high-efficiency system = Range (15 to 35)


Unit = Number of rebated units HSPFBase = Heating Seasonal Performance Factor federal baseline = See Table 31

HSPFEff = Heating Seasonal Performance Factor of high-efficiency system = Range (8.5 to 16) CAPH = Capacity of heating system in MBtuh (Tons x 12) = Range (12 to 65)

EFLHH = Equivalent Full Load Hours of heating = See Table 33


29


Electric Demand Savings Peak kW—ASHP <65 MBtuh—Whole House/Supplemental Systems

Where:

EERBase = Energy Efficiency Ratio baseline = Calculated EEREff = Energy Efficiency Ratio of new high-efficiency system = Range (12 to 20) EFLHH = Equivalent Full Load Hours of heating See Table 33 = Capacity of cooling system in MBtuh (Tons x 12) = Range (12 to 65)



Table 31. Split-System Heat Pump Baseline Cooling/Heating Equipment Efficiency

Equipment Baseline Parameter

Baseline Efficiency

Heating/Cooling (Before 2015)

Baseline Efficiency

Heating/Cooling (After 2015)

SEER Base/HSPF Base/EER Base

Electric resistance (baseboard)

SEEREff 3.413 3.413 HSPF Base

Force air furnace (electric) HSPFEff 3.242 3.242 HSPF Base

Air-source heat pump (heating)

HSPFElectric resistance 7.7 8.2 HSPF Base

New construction (heating) HSPFForce Air Furnace 7.7 8.2 HSPF Base

Other (heating) HSPFAir Source Heat Pump 7.7 8.2 HSPF Base

Central air conditioner HSPFNew Construction 13 13 SEER Base

Central air conditioner HSPFOther Heating 11.2 11.2 EER Base

Air-source heat pump (cooling)

SEERCAC 13 14 SEER Base

Air-source heat pump (cooling)

EERCAC 11.2 11.8 EER Base

Room air conditioner SEERASHP 11.4 11.4 SEER Base

Room air conditioner EERASHP 9.8 9.8 EER Base

New construction (cooling) SEERRAC 13 14 SEER Base

New construction (cooling) EERRAC 11.2 11.8 EER Base

Other (cooling) SEERNew Construction 13 14 SEER Base

Other (cooling) EERNew Construction 11.2 11.8 EER Base


30

Table 32. Split-System Heat Pump EFLH of Cooling








Residential Residential Cool Central 794 * Vintage new construction refers to homes built during and after 2009; existing construction represents pre-2009 building construction.

Table 33. Split-System Heat Pump EFLH of Heating








Residential Residential Heat Pump 2,269 * Vintage new construction refers to homes built during and after 2009; existing construction represents pre-2009 building construction.

Table 34. Split-System Heat Pump Peak Coincidence Factor


Cooling 0.00097871 0.00095662 0.00101125 0.001004888

VARIABLE SOURCES:

Table 35. Split-System Heat Pump Algorithm Sources


SEEREff Entered from application form or AHRI database.

HSPFEff Entered from application form or AHRI database.

HSPFElectric resistance Assume COP of 1.0, converted to HSPF by multiplying 3.413.

HSPFForce Air Furnace Assume COP of 0.95 (assume 5% furnace losses), converted to HSPF by multiplying 3.413.

HSPFAir Source Heat Pump Source: Federal Code, 2006 and 2015, 10 CFR 430.32(c)(2) and 10 CFR 430.32(c)(3).

HSPFNew Construction Source: Assume NC baseline is either air-source or ductless heat pump set to Federal Code, 2006 and 2015, 10 CFR 430.32(c)(2) and 10 CFR 430.32(c)(3).

HSPFOther Heating Source: While OTHER heating may be gas heat, wood stove, etc., assume other baseline as a conservative input to be either air-source or ductless heat pump and set to Federal Code, 2006 and 2015, 10 CFR 430.32(c)(2) and 10 CFR 430.32(c)(3).

SEERCAC Source: Federal Code, 2006 and 2015, 10 CFR 430.32(c)(2) and 10 CFR 430.32(c)(3).


31


EERCAC Source: Calculated from SEERBASE, methodology from NREL Building America Research Benchmark Definition 2009, Equation 4: EER = -0.02×SEER2+1.12 × SEER, http://www.nrel.gov/docs/fy10osti/47246.pdf

SEERASHP Source: Federal Code, 2006 and 2015, 10 CFR 430.32(c)(2) and 10 CFR 430.32(c)(3).

EERASHP Source: Calculated from SEERBASE, methodology from NREL Building America Research Benchmark Definition 2009, Equation 4: EER = -0.02×SEER2+1.12 × SEER, http://www.nrel.gov/docs/fy10osti/47246.pdf

SEERRAC Source: Calculated from SEERBASE, methodology from NREL Building America Research Benchmark Definition 2009, Equation 4: EER = -0.02×SEER2+1.12 × SEER, http://www.nrel.gov/docs/fy10osti/47246.pdf

EERRAC Source: Federal Standard, effective October 2000 through June 1, 2014.

SEERNew Construction Source: Assume NC baseline either air-source or ductless heat pump set to Federal Code, 2006 and 2015, 10 CFR 430.32(c)(2) and 10 CFR 430.32(c)(3).

EERNew Construction Source: Calculated from SEERBASE, methodology from NREL Building America Research Benchmark Definition 2009, Equation 4: EER = -0.02×SEER2+1.12 × SEER, http://www.nrel.gov/docs/fy10osti/47246.pdf

SEEROther Cooling Source: While OTHER cooling may be evaporative cooling, fan, etc., assume other baseline as a conservative input to be either air-source or ductless heat pump and set to Federal Code, 2006 and 2015, 10 CFR 430.32(c)(2) and 10 CFR 430.32(c)(3).

EEROther Cooling Source: Calculated from SEERBASE, methodology from NREL Building America Research Benchmark Definition 2009, Equation 4: EER = -0.02×SEER2+1.12 × SEER, http://www.nrel.gov/docs/fy10osti/47246.pdf


EFLHC

Inferred from the 2011 Assessment of Potential; supplement load hours based on Pennsylvania Technical Reference Manual June 2013—FLH Cooling Secondary Location; Adjusted by a factor 30% based on the 2013 PA TRM (Pennsylvania Technical Resource Manual).

CAPH Entered from application form or AHRI database.

EFLHH Inferred from the 2011 Assessment of Potential; supplement load hours based on Pennsylvania Technical Reference Manual June 2013—FLH Cooling Secondary Location; Adjusted by a factor 30% based on the 2013 PA TRM.








32

HVAC: HVAC System Tune-Up

Measure Description Tune-up of existing residential HVAC systems.

Fuel Electric/Gas

End Use HVAC

Baseline Equipment Existing residential HVAC systems that require tune-ups.


-Air Conditioner Maintenance (Tune-up). -Air-Source Heat Pump Maintenance (Tune-up). -Ground-Source Heat Pump Maintenance (Tune-up). -Boiler Maintenance (Tune-up). -Furnace Maintenance (Tune-up).


-Heating system type (gas furnace, ASHP, GSHP, electric baseboard, electric furnace). -Heating system capacity (MBtuh). -Heating system efficiency (AFUE, HSPF, COP). -Cooling system type (CAC, ASHP, GSHP, room AC, none). -Cooling system capacity (MBtuh). -Cooling system efficiency (SEER, EER, or N/A).





Electric Savings kWh—HVAC System Tune-up—ASHP

Where:

SFC = Cooling savings factor for ASHP tune-ups = 7.5% EFLHC = Equivalent Full Load Hours of cooling = See Table 36 SEER = Seasonal Energy Efficiency Ratio of installed unit = 13* CAP = Capacity of cooling system in MBtuh (Tons x 12) = Range (4 to 65) Unit = Number of rebated tune-ups SFH = Heating savings factor for ASHP tune-ups = 2.3%

EFLHH = Equivalent Full Load Hours of heating = See Table 36 HSPF = Heating Seasonal Performance Factor of installed unit = 7.7*

* Use provided default value only if value is not available.

Electric Savings kWh—HVAC System Tune-up—GSHP


33

Where:

SFC = Cooling savings factor for GSHP tune-ups = 7.5% EFLHC = Equivalent Full Load Hours of cooling = See Table 36

EER = Energy Efficiency Ratio of installed unit = 11.2* CAP = Capacity of cooling system in MBtuh (Tons x 12) = Range (4 to 65) Unit = Number of rebated tune-ups SFH = Heating savings factor for GSHP tune-ups = 2.3%

EFLHH = Equivalent Full Load Hours of heating = See Table 36 COP = Coefficient of Performance of installed unit = 2.26*

3.412 = Conversion factor from Btuh to watts = 3.412 * Use provided default value only if value is not available.

Electric Savings kWh—HVAC System Tune-up—CAC

Where:

SFC = Cooling savings factor for CAC tune-ups = 7.5% EFLHC = Equivalent Full Load Hours of cooling = See Table 36 SEER = Seasonal Energy Efficiency Ratio of installed unit = 13* CAPC = Capacity of cooling system in MBtuh (Tons x 12) = Range (4 to 65) Unit = Number of rebated tune-ups


Gas Savings Therms—HVAC System Tune-up—Gas Furnace/Boiler

Where:

SF = Heating savings factor for furnaces and boilers = 7% EFLHH = Equivalent Full Load Hours of heating = See Table 36

CAP = Input capacity of heating system in MBtuh (Tons x 12) = Range (30 to 225) 100 = Conversion factor from MBtuh to therms = 100 Unit = Number of rebated tune-ups



34


Electric Demand Savings Peak kW—HVAC System Tune-up—ASHP, GSHP, and CAC

Where:

Cooling Annual kWh = Annual kWh savings from cooling = Calculated CF = Peak Coincidence Factor = See Table 37

Gas Demand Savings Peak Therms—HVAC System Tune-up—Gas Furnace and Boiler

Where: Annual Therms = Annual HVAC therms savings = Calculated



Table 36. EFLH of Heating and Cooling

Building Type End Use EFLHC EFLHH

Manufactured Heat Pump 764 2,401

Multifamily Heat Pump 650 1,846

Single-family Heat Pump 811 2,272

All Residential Heat Pump 794 2,269

Manufactured Cool Central 764 N/A

Multifamily Cool Central 650 N/A

Single-family Cool Central 811 N/A

All Residential Cool Central 794 N/A

Manufactured Heat Central Furnace N/A 627

Single-family Heat Central Furnace N/A 612

Multifamily Heat Central Furnace N/A 520

Manufactured Heat Central Boiler N/A 714

Single-family Heat Central Boiler N/A 686

Multifamily Heat Central Boiler N/A 738

All Residential Heat Central Furnace N/A 603

All Residential Heat Central Boiler N/A 689

Table 37. HVAC Peak Coincidence Factor


Cooling (Peak kW) 0.00097871 0.00095662 0.00101125 0.001004888

Central Heat (Peak Therms)

0.00934793 0.00903212 0.00970261 0.009615235


35

VARIABLE SOURCES:

Table 38. HVAC System Tune-up Algorithm Sources


SFC Calculated based on Cadmus report: Savings percent for a refrigerant charged AC unit, Bin Analysis, Energy Savings Impact of Improving the Installation of Residential Central Air Conditioners, 2005; see accompanying Excel workbook.

SFH Calculated based on Cadmus report: Savings percent for a refrigerant charged AC unit, Bin Analysis, Energy Savings Impact of Improving the Installation of Residential Central Air Conditioners, 2005; see accompanying Excel workbook.

SEERHP (Default) Assume existing equipment meets code (conservative estimate); Federal Code, 2006, 10 CFR 430.32(c)(2) and 10 CFR 430.32(c)(3).

HSPF (Default) Assume existing equipment meets code (conservative estimate); Federal Code, 2006, 10 CFR 430.32(c)(2) and 10 CFR 430.32(c)(3).

EER (Default) Calculated from SEERBASE, methodology from NREL Building America Research Benchmark Definition 2009, Equation 4: EER = -0.02×SEER2+1.12 × SEER, http://www.nrel.gov/docs/fy10osti/47246.pdf

COP (Default) Federal Code, 2006, 10 CFR 430.32(c)(2) (converted HSPF to COP, dividing HSPF by 3.412).

SEERCAC (Default) Assume existing equipment meets code (conservative estimate); Federal Code, 2006, 10 CFR 430.32(c)(2) and 10 CFR 430.32(c)(3).

EFLH Inferred from the 2011 Assessment of Potential.




36

HVAC: Programmable Thermostat

Measure Description Residential purchase of programmable thermostat.

Fuel Electric/Gas

End Use HVAC

Baseline Equipment Standard non-programmable thermostat.

Efficiency Qualification -Existing home only. -Setback 5-1-1, 5-2, 7-Day, or WiFi programmable thermostat.


-Heating system type (gas furnace, ASHP, GSHP, electric baseboard, electric furnace). -Heating system capacity (MBtuh). -Heating system efficiency (AFUE, HSPF, COP). -Cooling system type (CAC, ASHP, GSHP, room AC, none). -Cooling system capacity (MBtuh). -Cooling system efficiency (SEER, EER, N/A).

Market Opportunity Retrofit




Electric Savings kWh—Programmable Thermostat

Where: EQUIPusage = Annual consumption by building and equipment type = See Table 39

SF = Savings factor for programmable thermostat = 3.5% Unit = Number of rebated units


Electric Demand Savings Peak kW—Programmable Thermostat—Electric Furnace and Baseboard

Gas Demand Savings Peak Therms—Programmable Thermostat—Gas Furnace and Boiler

Where: Annual Therms = Annual HVAC therms savings = Calculated



37


Table 39. Programmable Thermostat Annual Energy Usage

Building Type End Use HVAC Equipment Type EQUIPusage (kWh/Therms)

Manufactured Heat Pump Air-Source Heat Pump 12,044

Multifamily Heat Pump Air-Source Heat Pump 7,548

Single-family Heat Pump Air-Source Heat Pump 13,971

Manufactured Heat Pump—Cooling Air-Source Heat Pump 1,896

Multifamily Heat Pump—Cooling Air-Source Heat Pump 1,282

Single-family Heat Pump—Cooling Air-Source Heat Pump 2,290

Manufactured Heat Pump—Heating Air-Source Heat Pump 10,148

Multifamily Heat Pump—Heating Air-Source Heat Pump 6,266

Single-family Heat Pump—Heating Air-Source Heat Pump 11,682

Manufactured Heat Pump Ground-Source Heat Pump 6,998

Multifamily Heat Pump Ground-Source Heat Pump 4,378

Single-family Heat Pump Ground-Source Heat Pump 8,102

Manufactured Heat Pump—Cooling Ground-Source Heat Pump 1,101

Multifamily Heat Pump—Cooling Ground-Source Heat Pump 744

Single-family Heat Pump—Cooling Ground-Source Heat Pump 1,328

Manufactured Heat Pump—Heating Ground-Source Heat Pump 5,896

Multifamily Heat Pump—Heating Ground-Source Heat Pump 3,634

Single-family Heat Pump—Heating Ground-Source Heat Pump 6,775

Manufactured Cooling Central Air Conditioner 1,896

Multifamily Cooling Central Air Conditioner 1,282

Single-family Cooling Central Air Conditioner 2,290

Manufactured Heat Central Electric Furnace/Baseboard 12,725

Multifamily Heat Central Electric Furnace/Baseboard 8,561

Single-family Heat Central Electric Furnace/Baseboard 13,994

Manufactured Heat Central Heat Central Furnace 525

Multifamily Heat Central Heat Central Furnace 348

Single-family Heat Central Heat Central Furnace 603

Manufactured Heat Central Heat Central Boiler 672

Multifamily Heat Central Heat Central Boiler 541

Single-family Heat Central Heat Central Boiler 747

Table 40. Programmable Thermostat Peak Coincidence Factor


Cooling (Peak kW) 0.00097871 0.00095662 0.00101125 0.001004888

Central Heat (Peak Therms) 0.00934793 0.00903212 0.00970261 0.009615235


38

VARIABLE SOURCES:

Table 41. Programmable Thermostat Algorithm Sources


EQUIPusage Inferred from the 2011 Assessment of Potential.

SF

Based on engineering research. Cooling savings range from 2% to 9% in various TRMs and the retired ENERGY STAR Calculator. Assumes a conservative 3.5% savings. Heating savings range from 3% to 6.2% in various TRMs and the retired ENERGY STAR Calculator. Assumes a conservative 3.5% savings.



39

HVAC: Room Air Conditioning

Measure Description Residential purchase of Split-System Central Air Conditioning.

Fuel Electric

End Use HVAC

Baseline Equipment Central Air Conditioner system compliant with federal standard; with a minimum SEER/EER of 13.0/11.2.


Room AC standard changes in 6/1/2014. IPL adopts mid-year code changes the first of the year following the change (e.g., the room AC change due 6/1/2014 would be implemented by IPL programs and TREES on 1/1/2015). All analysis and assumptions are based on the first of the year following the mid-year code change. For 2014 Program Year (federal standard effective October 2000 through June 1, 2014): -Room AC system that is ENERGY STAR. After 2014 Program Year (federal standard effective June 1, 2014): -Room AC system that is ENERGY STAR, rated in CEER. This new ENERGY STAR criteria rating had not been announced as of July 29, 2013. -Taking a 8,000-13,999 Btu unit, the new federal baseline for room AC will be roughly EER = 11 (CEER = 10.9), rendering the current ENERGY STAR measure with EER 10.8 to incur negative savings. -Recommend update to energy-efficiency program requirements for the 2015 program year. Update calculation workbook once new criteria becomes available.


-Equipment size (in MBtuh or tons). -Efficiency (in EER and/or CEER). -Installation date.





Electric Savings kWh—Room Air Conditioner—ENERGY STAR Before January 1, 2015

After January 1, 2015

Where: EERBase = Energy Efficiency Ratio federal baseline = See Table 42

EEREff = Energy Efficiency Ratio of new high-efficiency system = Range (9.4 to 12)*



40

Unit = Number of rebated units CEERBase = Combined Energy Efficiency Ratio federal baseline = See Table 43

CEEREff = Combined Energy Efficiency Ratio of new high-efficiency system

= Range (9.2 to 10.4)**

*Before January 1, 2015 ** After January 1, 2015 Federal Code Change


Demand Savings kW—Room Air Conditioner—ENERGY STAR

Where:

Annual kWh = Room AC cooling annual kWh savings = Calculated CF = Peak Coincidence Factor = See Table 45


Table 42. Room AC Federal Baseline Energy Efficiency Ratio (Before January 1, 2015)

Room AC Type Capacity (MBtuh/Type) Federal Standard EER, With

Louvered Sides

Federal Standard EER, Without

Louvered Sides

Room AC without reverse cycle

< 6.0 9.7 9.0

6.0 to 7.99

8.0 to 13.99 9.8

8.5 14.0 to 19.99 9.7

≥ 20.0 8.5

Casement Room AC Casement-only 8.7

Casement-slider 9.5

Reverse Cycle Room AC

< 14.0 N/A 8.5

≥ 14.0 N/A 8.0

< 20.0 9.0 N/A

≥ 20.0 8.5 N/A


41

Table 43. Room AC Federal Baseline Combined Energy Efficiency Ratio (After January 1, 2015)

Room AC Type Capacity (MBtuh/Type) Federal Standard CEER,

With Louvered Sides

Federal Standard CEER, Without Louvered Sides

Room AC without reverse cycle

< 6.0 11.0 10.0

6.0 to 7.99

8.0 to 13.99 10.9 9.6

14.0 to 19.99 10.7 9.3

20.0 to 24.99 9.4 9.4

≥ 20.0 9.0

Casement Room AC Casement-only 9.5

Casement-slider 10.4

Reverse Cycle Room AC

< 14.0 N/A 9.3

≥ 14.0 N/A 8.7

< 20.0 9.8 N/A

≥ 20.0 9.3 N/A

Table 44. Room AC EFLH of Cooling









Table 45. Room AC Peak Coincidence Factor


Cooling 0.00097871 0.00095662 0.00101125 0.001004888

VARIABLE SOURCES:

Table 46. Room AC Algorithm Sources


EERBase Federal Standard, effective October 2000 through June 1, 2014.

EEREff Entered from application form or AHRI database. Range based on ENERGY STAR room air conditioners.

CEERBase Federal Standard, effective as of June 1, 2014.

CEEREff Entered from application form or AHRI database. Range based on ENERGY STAR room air conditioners.

CAPC Entered from application form or AHRI database. Range based on ENERGY STAR room air conditioners.




42

HVAC: Whole-House Fan

Measure Description A Whole-House Fan captures savings by reducing/eliminating the need for electric cooling. The fan runs when outside temperatures fall below the inside temperature.

Fuel Electric

End Use HVAC

Baseline Equipment Cooling system without a whole-house fan.

Efficiency Qualification Must be a whole-house measure (not an exhaust fan). New Installation.


Cooling system type (CAC, ASHP, GSHP, room AC, none).

Market Opportunity New Installation




Electric Savings kWh—Whole-House Fan—Cooling Systems

Where: UEScooling = Unit energy savings by building type = See Table 47

Unit = Number of rebated units = 1* * Assume one whole-house fan per application per home. Should not equal more than one per home. If more than one, review applications for exceptions.

Table 47. Unit Energy Savings (UES) Cooling by Building Type

Building Type Vintage End Use Energy Savings—UES (kWh)

Manufactured Existing Cooling 284

Manufactured New Cooling 155

Single-family Existing Cooling 343

Single-family New Cooling 197


VARIABLE SOURCES:

Table 48. Whole-House Fan Algorithm Sources


UEScooling Inferred from the 2011 Assessment of Potential, based on 15% savings of CAC/ASHP system from shoulder periods.

Assume this measure only offsets shoulder (non-peak) periods where standard AC systems will operate

during peak.


43

Shell: Insulated Doors

Measure Description Residential purchase of a more energy-efficient door.

Fuel Electric/Gas

End Use HVAC

Baseline Equipment A door compliant with federal code, with an R-value of 2.9.

Efficiency Qualification ENERGY STAR Door (R-4.8) or High-Efficiency Thermal Door (R-10).


-Heating system type (gas furnace, ASHP, geothermal heat pump (GSHP), electric baseboard, electric furnace). -Cooling system type (CAC, ASHP, GSHP, none). -Door insulation level (R-value). -Installation date.





Electric Savings kWh—Insulated Door—ASHP

Where:

A = Area of the door in ft2 = 20 CDD = Cooling degree days = 1,289

24 = Number of hours per day = 24

SEERBase = Seasonal Energy Efficiency Ratio federal baseline = 13* 14**

1,000 = Conversion factor from watts to kilowatts = 1,000 HDD = Heating degree days = 6,595

HSPFBase = Heating Seasonal Performance Factor federal baseline = 7.7* 8.2**

RBase = R-value of baseline door = 2.9 REff = R-value of efficient door (ENERGY STAR door) = Range (4.8 to 9.9)

R-value of efficient door (thermal door) Range (≥ 10) Unit = Number of rebated units


Electric Savings kWh—Insulated Door—GSHP


44

Where: EERBase = Energy Efficiency Ratio of baseline efficiency system = 13.4 COPBase = Coefficient of Performance of baseline system = 3.1

3,412 = Conversion factor from Btuh to kWh = 3,412

Electric Savings kWh—Insulated Door—CAC

Electric Savings kWh—Insulated Door—Electric Baseboard/Furnace

Gas Savings Therms—Insulated Door—Furnace

Where:

AFUEBase = Annual Fuel Utilization Efficiency for the baseline furnace = 78% 100,000 = Conversion factor from Btuh to therms = 100,000

Gas Savings Therms—Insulated Door—Boiler

Where:

AFUEBase = Annual Fuel Utilization Efficiency for the baseline boiler = 82%


Electric Demand Savings Peak kW—Door—ASHP, GSHP, and CAC

Where:

EERBase = Energy Efficiency Ratio of baseline efficiency system = See Table 49 CF = Peak Coincidence Factor = See Table 50

Electric Demand Savings Peak kW—Door—Electric Baseboard/Furnace


45

Gas Demand Savings Peak Therms—Door—Gas Furnace/Boiler


Table 49. Energy Efficiency Ratio of Baseline Efficiency Systems

System EERBase

ASHP* 11.2

ASHP** 11.8

CAC 11.2

GSHP 13.4 *Before 1/1/2015 **After 1/1/2015 Federal Code Change

Table 50. Cooling and Central Heat Peak Coincidence Factor


Cooling (Peak kW) 0.00097871 0.00095662 0.00101125 0.001004888

Central Heat (Peak Therms)

0.00934793 0.00903212 0.00970261 0.009615235

VARIABLE SOURCES:

Table 51. Door Algorithm Sources


A Engineering judgment of standard, exterior door.

CDD TMY3 data for Des Moines, IA.


HDD TMY3 data for Des Moines, IA.


RBase International Energy Conservation Code (IECC) 2009 Fenestration U-Factor for Climate Zone 5, U-factor = 0.35.

EERBase IECC 2009 Table 503.2.3(2); Groundsource (cooling mode).

COPBase IECC 2009 Table 503.2.3(2); Groundsource (heating mode).

AFUEBase (Baseline furnace AFUE)

1987 National Standard (newer standards have failed to be enacted).

AFUEBase (Baseline boiler AFUE) Code of Federal Regulations, 10 CFR 430.32(c)(1).



46

Water Heat: Desuperheater

Measure Description Residential add-on installation of a desuperheater to air-source or ground-source heat pump water heater.

Fuel Electric/Gas

End Use Water Heat

Baseline Equipment

Baseline tank size for storage water heater is 40 gallons. Water heater is compliant with water heater standard, U.S. Department of Energy (DOE) Standard 10 CFR 430.32(d). Code changes on 4/16/2015. IPL adopts mid-year code changes the first of the year following the change (e.g., the water heater change on 4/16/2015 will be implemented by IPL programs and TREES on 1/1/2016). All analysis and assumptions are based on first of the year, following the mid-year code change. Installation date (not manufactured date) is assumed and used for IPL programs and TREES.

Efficiency Qualification Add-on Desuperheater to Air-Source Heat Pump; Add-on Desuperheater to Ground-Source Heat Pump.


-Hot Water Heater Type (Electric, Gas Storage). -Installation Date.





Electric Savings kWh—Desuperheater with Electric Water Heater

Where:

UECperson = Annual unit energy consumption per person per home with electric water heating, in kWh/person

= 1,564.2* 1,513.4**

Nppl = Number of people per home with electric water heating = See Table 52 SF = Savings factor for Desuperheater = 19.0%

Unit = Number of rebated units *Before 1/1/2016 **After 1/1/2016 Water heater standard, DOE Standard 10 CFR 430.32(d), changes in 4/16/2015. All analysis and assumptions are based on first of the year following the mid-year code change.

Gas Savings Therms—Desuperheater with Gas Water Heater


47

Where:

UECperson = Annual unit energy consumption per person, per home with electric water heating, in therms/person

= 82.4* 79.6**

Nppl = Number of people per home with gas water heating = See Table 53 SF = Savings factor for desuperheater = 19.0%

Unit = Number of rebated units *Before 1/1/2016 **After 1/1/2016 Water heater standard, DOE Standard 10 CFR 430.32(d), changes in 4/16/2015. All analysis and assumptions are based on first of the year following the mid-year code change.


Electric Demand Savings Peak kW—Desuperheater with Electric Water Heater

Where: Annual kWh = Electric water heater savings = Calculated

CF = Peak Coincidence Factor = See Table 54 Gas Demand Savings Peak Therms—Desuperheater with Gas Water Heater

Where:

Annual Heating Therms = Gas water heater savings = Calculated CF = Peak Coincidence Factor = See Table 54


Table 52. Number of People Per Home With Electric Water Heating

Building Type End Use People per home

Manufactured Electric Water Heat 1.96

Multifamily Electric Water Heat 1.40

Single-family Electric Water Heat 2.12

Table 53. Number of People Per Home With Gas Water Heating

Building Type End Use People per home

Manufactured Gas Water Heat 2.05

Multifamily Gas Water Heat 1.48

Single-family Gas Water Heat 2.16


48

Table 54. Water Heat Peak Coincidence Factor


Electric Water Heat 0.00009951 0.00009959 0.00009868 000098847

Gas Water Heat 0.00290826 0.00290604 0.00290983 0.002909472

VARIABLE SOURCES:

Table 55. Desuperheater Algorithm Sources


UECperson Calculated based on typical residential water heater operating parameters.

Nppl Average household size by building type and water heater fuel type, based on the data for the State of Iowa from 2007 RASS (Residential Appliance Saturation Study).

SF

Calculated based on information from Analysis of Air Conditioning Heat Recovery Units, Lawrence Berkeley National Laboratory (LBNL)-39383, Lawrence Berkeley National Laboratory. American Society of Heating and Air-Conditioning Engineers (ASHRAE) Chicago 1999 Desuperheater Impact, Monitored Desuperheater Performance in Residential Ground-Source Heat Pumps, Steven W. Carlson, P.E., CDH Energy Corp.



49

Water Heat: Water Heater

Measure Description Residential purchase of an energy-efficient water heater.

Fuel Electric/Gas

End Use Water Heat

Baseline Equipment

Water heater standard, DOE Standard 10 CFR 430.32(d), changes in 4/16/2015. IPL adopts mid-year code changes the first of the year following the change (e.g., the water heater change due 4/16/2015 will be implemented by IPL programs and TREES on 1/1/2016). All analysis and assumptions are based on the first of the year following the mid-year code change. Installation date of the water heater (not manufactured date) is assumed and used for IPL programs and TREES. Baseline gas tankless water heater is 40 gallons.


-Gas Storage Water Heater with EF = 0.67 (same as ENERGY STAR criteria), minimum 40 gallons with maximum 75,000 Btu/hour. -Gas Tankless Water Heater with EF = 0.82 (same as ENERGY STAR criteria). -Electric Heat Pump Water Heater with EF = 2.0 (same as ENERGY STAR criteria), minimum 40 gallons.


-Capacity (gallons). -Efficiency (EF). -Installation date.





Electric Savings kWh—Heat Pump Water Heater

Where: Tout = Temperature of hot water exiting water heater = 126.5°F

Tmain = Temperature of ground water entering hot water heater = 56.5°F 23.0 = Gallons of hot water used per person per day = 23.0 Nppl = Number of people per home with electric water heating = See Table 56

8.33 = Conversion factor from gallons to pounds = 8.33 1 = Specific heat of water in Btu/lb*°F = 1

365 = Number of days per year = 365 3,412 = Conversion factor from Btu to kWh = 3,412

Ce1 = Constant used to calculate electric baseline energy factor = See Table 58 Ce2 = Constant used to calculate electric baseline energy factor = See Table 58

GAL = Capacity of electric water heater in gallons = Range (40 to 80) EFEff = Energy factor of efficient water heater = Range (2 to 2.5) Unit = Number of rebated units


50

Gas Savings Therms—Gas Storage Water Heater

Where:

Nppl = Number of people with gas water heating = See Error! eference source not found.

100,000 = Conversion factor from Btu to therms = 100,000 Cg2 = Constant used to calculate gas baseline energy factor = See Table 58 Cg2 = Constant used to calculate gas baseline energy factor = See Table 58

GAL = Capacity of gas water heater in gallons = Range (40 to 75)

EFEff = Energy Factor of efficient gas water heater = Range (0.82 to 0.98)

*

Gas Savings Therms—Gas Tankless Water Heater

Where:

40 = Deemed hypothetical baseline storage tank volume for tankless water heater

= 40


Electric Demand Savings Peak kW—Heat Pump Water Heater

Where:


Gas Savings Peak Therms—Gas Storage and Tankless Water Heater

Where: CF = Peak Coincidence Factor = See Table 59


51



Building Type End Use People Per Home

Manufactured Electric Water Heat 1.96

Multifamily Electric Water Heat 1.40

Single-family Electric Water Heat 2.12


Building Type End Use People Per Home

Manufactured Gas Water Heat 2.05

Multifamily Gas Water Heat 1.48

Single-family Gas Water Heat 2.16

Table 58. Constants Used for Baseline EF Calculation

Installation Date Capacity Ce1 Ce2 Cg1 Cg2

Before 1/1/16 ≥ 40 and ≤ 120 0.97 0.00132 0.67 0.0019

After 1/1/16 ≥ 40 and ≤ 55 0.96 0.0003 0.675 0.0015

After 1/1/16 > 55 and ≤ 120 2.057 0.00113 0.8012 0.00078



Electric Water Heat 0.00009951 0.00009959 0.00009868 000098847

Gas Water Heat 0.00290826 0.00290604 0.00290983 0.002909472

VARIABLE SOURCES:

Table 60. Water Heater Algorithm Sources


Tout CPUC Residential Retrofit—High Impact Measure Evaluation Report Draft. Dec. 7, 2009. Pg. 76. Average temperature setpoints for two utilities.

Tmains

Averaged monthly water main temperature calculated using the methodology provided in Building America Research Benchmark Definition, updated December 2009. Pg.19-20. http://www.nrel.gov/docs/fy10osti/47246.pdf; water main temperature represents the average of TMY3 data from all Class I stations located in Des Moines, IA.

23.0 (Gallons of hot water used per person per day)

Averaged from various sources: New York Technical Resource Manual (NY TRM), American Council for an Energy-Efficient Economy (ACEEE), Ohio Technical Resource Manual (OH TRM), U.S. Environmental Protection Agency (EPA), and others.

EERBase 11.2 EER: Calculated from SEERBASE, methodology from NREL Building America Research Benchmark Definition 2009, Equation 4: EER = -0.02×SEER2+1.12 × SEER, http://www.nrel.gov/docs/fy10osti/47246.pdf

EEREff Entered from application form or AHRI database. Range based on AHRI database; highest EER listed is 18 as of August 2013.

GAL Range is based on ENERGY STAR-qualified list of water heaters (list posted 6/26/13).

EFEff Range is based on ENERGY STAR-qualified list of water heaters (list posted 6/26/13).




52



Average household size by building type and water heater fuel type based on the 2007 RASS.


Average household size by building type and water heater fuel type based on the 2007 RASS.


Water heater standard, DOE Standard 10 CFR 430.32(d), changes in 4/16/2015. IPL adopts mid-year code changes the first of the year following the change (e.g., the water heater change due 4/16/2015 will be implemented by IPL programs and TREES on 1/1/2016). All analysis and assumptions are based on the first of the year following the mid-year code change. Installation date of the water heater (not manufactured date) is assumed and used for IPL programs and TREES.




53

Home Energy Assessments Program Table 61. Home Energy Assessments Program Overview

Eligible Customers

Basic Assessment and Comprehensive

Assessment

Electric Only Assessment

Insulation and Infiltration Measures

Bonus Rebate

Customer Class Residential electric and/or natural gas

Residential electric Residential electric and/or natural gas

Residential electric and/or natural gas

Customer Status

Non-low income; homeowner or tenant with owner approval




Building Type Single-family Single-family Single-family Single-family

Building Vintage

10 years or older 10 years or older 10 years or older 10 years or older

Geography IPL’s Iowa service territory

IPL’s Iowa service territory



Other Primary heating fuel delivered by IPL

Must have propane heat and CAC

Must have completed an assessment prior to installation; rebate based on assessment or recommendation

Must install two or more recommended measures; at least one installed measure must be in top three priority


54

HVAC: Duct Sealing and Repair

Measure Description

Duct sealing and repair can: save energy; improve air and thermal distribution (comfort and ventilation); and reduce cross-contamination between different zones within buildings (e.g., smoking vs. non-smoking, bio-aerosols, localized indoor air pollutants).

Fuel Electric

End Use HVAC

Baseline Equipment Ducts requiring sealing and repair work.


-Duct sealing and repair with aerosol-based ductwork sealing (ADS), mastic, or other code compliant methods. -Home assessment or pre-installation assessment required. -Must be existing construction.


-Linear foot of duct (in ft.). -Building type. -Heating system type (natural gas, heat pump, electric resistance). -Cooling system type (central ac, heat pump, none).



Program Home Energy Assessment Program

ANNUAL ENERGY SAVINGS ALGORITHM: Electric/Natural Gas Savings kWh/Therms—Duct Sealing and Repair

Where: SavingsPerUnit = Annual savings per linear foot depend on heating fuel

equipment, in kWh/ft or therms/ft = See Table 62

DuctLength = Linear foot of duct, in ft = (1 to 1,500) Electric Demand Savings Peak kW—Duct Sealing and Repair

Where:

Annual kWh = Annual kWh savings from duct sealing and repair = Calculated CF = Peak Coincidence Factor = See Table 63


55


Table 62. Annual Savings per Linear Foot of Infiltration Control

Building Type HVAC System Therms/ft—SavingsPerUnit

Manufactured Heat Central Furnace 0.52

Multifamily Heat Central Furnace 0.38

Single-family Heat Central Furnace 0.42

Building Type HVAC System kWh/ft—SavingsPerUnit

Manufactured Cool Central 1.89

Multifamily Cool Central 1.39

Single-family Cool Central 1.61

Manufactured Heat Central 12.69

Multifamily Heat Central 9.31

Single-family Heat Central 9.85

Manufactured Heat Pump 12.01

Multifamily Heat Pump 8.21

Single-family Heat Pump 9.84

Manufactured Heat Pump—Cooling 1.89

Multifamily Heat Pump—Cooling 1.39

Single-family Heat Pump—Cooling 1.61

Manufactured Heat Pump—Heating 10.12

Multifamily Heat Pump—Heating 6.82

Single-family Heat Pump—Heating 8.22


Manufactured Multifamily Single-family All Residential

0.00934793 0.00903212 0.00970261 0.009615235

VARIABLE SOURCES:

Table 64. Duct Sealing and Repair Algorithm Sources


DuctLength Entered from application form.

Table 62. Annual Savings per Linear Foot of Infiltration Control

Inferred from 2011 Assessment of Potential. ENERGY STAR: up to 20%; assumed 10% for average savings percent, based on ENERGY STAR range of potential savings per home. Benefits of Duct Sealing: http://www.energystar.gov/index.cfm?c=home_improvement.hm_improvement_ducts_benefits



http://www.energystar.gov/index.cfm?c=home_improvement.hm_improvement_ducts_benefits

http://www.energystar.gov/index.cfm?c=home_improvement.hm_improvement_ducts_benefits


56


Measure Description A programmable thermostat controls setpoint temperatures automatically, ensuring HVAC systems do not run during low-occupancy hours.

Fuel Electric/Gas

End Use HVAC

Baseline Equipment Manual thermostat without a programmable feature.

Efficiency Qualification Existing home, only with setback programmable thermostat (5-1-1, 5-2, or 7-day).


Existing HVAC equipment (heating system and cooling system).




ANNUAL ENERGY SAVINGS ALGORITHM: Electric/Natural Gas Savings kWh/Therms—Programmable Thermostat

Where:

UESElectric = Unit Electric Energy Savings by end-use equipment type = See Table 65 UESGas = Unit Gas Energy Savings by end-use equipment type = See Table 65

Unit = Number of units installed Electric/Natural Gas Demand Savings Peak kW/Therms—Programmable Thermostat

Where:

UDSCFElectric = Peak Coincidence Factor x Unit Demand Savings; central air conditioner and air source heat pumps peak demand savings by end-use equipment type

= See Table 66

UDSCFGas = Peak Coincidence Factor x Unit Demand Savings; gas equipment peak demand savings by end-use equipment type

= See Table 66

Unit = Number of units installed ALGORITHM VARIABLES:

Table 65. UES by End-use Equipment Type

Building Type Vintage End Use End-use Equipment UESElectric

(kWh/year)

Manufactured Existing Cooling Central Air Conditioner 66

Multifamily Existing Cooling Central Air Conditioner 45

Single-family Existing Cooling Central Air Conditioner 80

Manufactured Existing Heat Central Electric Furnace and Electric Baseboard 445


57


(kWh/year)

Multifamily Existing Heat Central Electric Furnace and Electric Baseboard 300

Single-family Existing Heat Central Electric Furnace and Electric Baseboard 490

Manufactured Existing Heat Pump Air Source Heat Pump 422

Multifamily Existing Heat Pump Air Source Heat Pump 264

Single-family Existing Heat Pump Air Source Heat Pump 489

Manufactured Existing Heat Pump—Cooling Air Source Heat Pump 66

Multifamily Existing Heat Pump—Cooling Air Source Heat Pump 45

Single-family Existing Heat Pump—Cooling Air Source Heat Pump 80

Manufactured Existing Heat Pump—Heating Air Source Heat Pump 355

Multifamily Existing Heat Pump—Heating Air Source Heat Pump 219

Single-family Existing Heat Pump—Heating Air Source Heat Pump 409

Manufactured Existing Heat Pump Ground Source Heat Pump 245

Multifamily Existing Heat Pump Ground Source Heat Pump 153

Single-family Existing Heat Pump Ground Source Heat Pump 284

Manufactured Existing Heat Pump—Cooling Ground Source Heat Pump 39

Multifamily Existing Heat Pump—Cooling Ground Source Heat Pump 26

Single-family Existing Heat Pump—Cooling Ground Source Heat Pump 46

Manufactured Existing Heat Pump—Heating Ground Source Heat Pump 206

Multifamily Existing Heat Pump—Heating Ground Source Heat Pump 127

Single-family Existing Heat Pump—Heating Ground Source Heat Pump 237

Building Type Vintage Existing End-use Equipment UESGas

(Therms/year)

Manufactured Existing Central Heat Heat Central Furnace 18

Multifamily Existing Central Heat Heat Central Furnace 12

Single-family Existing Central Heat Heat Central Furnace 21

Manufactured Existing Central Heat Heat Central Boiler 24

Multifamily Existing Central Heat Heat Central Boiler 19

Single-family Existing Central Heat Heat Central Boiler 26

Table 66. Peak Coincidence Factor x Unit Demand Savings, by Equipment Type

Building Type Vintage End Use End-use Equipment UDSCFElectric

(kW)

Manufactured Existing Cooling Central Air Conditioner 0.0649

Multifamily Existing Cooling Central Air Conditioner 0.0429

Single-family Existing Cooling Central Air Conditioner 0.0810

Manufactured Existing Heat Central Electric Furnace and Electric Baseboard 0.0000

Multifamily Existing Heat Central Electric Furnace and Electric Baseboard 0.0000

Single-family Existing Heat Central Electric Furnace and Electric Baseboard 0.0000

Manufactured Existing Heat Pump Air Source Heat Pump 0.0649

Multifamily Existing Heat Pump Air Source Heat Pump 0.0429

Single-family Existing Heat Pump Air Source Heat Pump 0.0810

Manufactured Existing Heat Pump—Cooling Air Source Heat Pump 0.0649

Multifamily Existing Heat Pump—Cooling Air Source Heat Pump 0.0429

Single-family Existing Heat Pump—Cooling Air Source Heat Pump 0.0810


58


(kW)

Manufactured Existing Heat Pump—Heating Air Source Heat Pump 0.0000

Multifamily Existing Heat Pump—Heating Air Source Heat Pump 0.0000

Single-family Existing Heat Pump—Heating Air Source Heat Pump 0.0000

Manufactured Existing Heat Pump Ground Source Heat Pump 0.0423

Multifamily Existing Heat Pump Ground Source Heat Pump 0.0243

Single-family Existing Heat Pump Ground Source Heat Pump 0.0507

Manufactured Existing Heat Pump—Cooling Ground Source Heat Pump 0.0423

Multifamily Existing Heat Pump—Cooling Ground Source Heat Pump 0.0243

Single-family Existing Heat Pump—Cooling Ground Source Heat Pump 0.0507

Manufactured Existing Heat Pump—Heating Ground Source Heat Pump 0.0000

Multifamily Existing Heat Pump—Heating Ground Source Heat Pump 0.0000

Single-family Existing Heat Pump—Heating Ground Source Heat Pump 0.0000

Building Type Vintage Existing End-use Equipment UDSCFGas

(Peak Therms)

Manufactured Existing Central Heat Heat Central Furnace 0.17162

Multifamily Existing Central Heat Heat Central Furnace 0.10993

Single-family Existing Central Heat Heat Central Furnace 0.20491

Manufactured Existing Central Heat Heat Central Boiler 0.21975

Multifamily Existing Central Heat Heat Central Boiler 0.17093

Single-family Existing Central Heat Heat Central Boiler 0.25370

VARIABLE SOURCES:




Calculated using average heating system consumption and the savings factor (percentage values). Cooling savings factors and heating savings factors were determined based on engineering research. Heating savings ranged from 3% to 6.2% in various TRMs and the retired ENERGY STAR Calculator. Cooling savings ranged from 2% to 9% in various TRMs and the retired ENERGY STAR Calculator. Conservative savings of 3.5% were assumed for both. Peak Demand CF values, derived from the 2011 Assessment of Potential, and were incorporated into the calculations.


Units Entered from application form.


59

Lighting: CFLs

Measure Description Savings are captured by installing compact fluorescent lamps (CFL) that require less power than incandescent lamps

Fuel Electric

End Use Lighting

Baseline Equipment Incandescent lamps

Efficiency Qualification -Qualified CFLs -Direct install of 13 and 23 wattage CFLs


-Efficient lamp quantity -Hours of use or building type group



Program Home Energy Assessment

ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—CFL Lamps

Where: CFLSavings = Average annual unit energy savings by lamp type = See Table 68

Units = Number of efficient lamps Electric Demand Savings Peak kW—CFL Lamps

Where:

Annual kWh = Annual kWh savings from CFL lamps CF = Peak Coincidence Factor = See Table 69


Table 68. CFL Energy Savings

CFL Lamp Type CFL Energy Savings [kWh/year/lamp]

CFL Lamp - 14W A-FRAME A19 28.57

CFL Lamp - Flood R30 16W, 15 W /ELXR30/27K 48.27

CFL Lamp - 19W CFL Standard Spiral 33.49

CFL Lamp - GLOBE CFL 15W/G28 27.58

CFL Lamp - 3 Way CFL 13/20/25W 54.18

CFL Lamp - 32W CFL High Watt 39.40

CFL Lamp - R20/14W Reflector 28.57


60



Lighting 0.00006793 0.00006782 0.00006766 0.00006769

VARIABLE SOURCES:

Table 70. CFLs Algorithm Sources


CFLSavings

Analysis based on baseline assumptions of EISA compliant bulbs of lumen equivalent to the CFL bulb. Hours based on WECC assumptions from 2014 Be-Bright program based on WECC documentation provided to IPL on 12/24/2013 - "IA Savings Table_2013" (Updated for 2014).





61

Plug Load: Advanced Power Strips

Measure Description

Savings are captured by load sensing advanced power strips (APS) also known as smart strips. Smart strips typically have one master or controller outlet, several controlled or switched outlets, and one or two uncontrolled or always-on outlets. The controlled outlets will automatically stop drawing power when the homeowner turns off the controller device. This creates energy savings by reducing the power draw from the controlled devices’ standby mode.

Fuel Electric

End Use Plug Load

Baseline Equipment Standard power strips

Efficiency Qualification Qualified 4 to 8-plug advanced power strips


-Number of advanced power strips -Application for advanced power strips: home office or home entertainment system




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Advanced Power Strips

Where: APSSavings = Average annual unit energy savings by type = See Table 71

Units = Number of power strips Electric Demand Savings Peak kW— Advanced Power Strips

Where:



Table 71. Annual Energy Savings from Advanced Power Strips for Different Connected Systems

Average [kWh/yr/APS] Home Office [kWh/yr/APS] Home Entertainment System

[kWh/yr/APS]

57.5 31.0 75.1



Plug Load 0.00011478 0.00011418 0.00011425 0.000114274


62

VARIABLE SOURCES:

Table 73. Advanced Power Strips Algorithm Sources



Table 71. Annual

Energy Savings from

Advanced Power

Strips for Different

Connected Systems

This measure includes large variability in savings. Cadmus research (as shown in the benchmarking table below) of various sources found large range in savings. Research concluded that the 2011 NYSERDA final report is the most comprehensive and is used for the SBDI savings. NYSERDA Final Report. Advanced Power Strip Research Report. No. 12-03. August 2011




63

Shell: Floor Insulation

Measure Description Floor insulation slows the transfer of heat and reduces heating and cooling loads in buildings.

Fuel Electric/Gas

End Use HVAC: Insulation

Baseline Equipment An inadequately insulated floor (R-value of 2.7) in addition to a bare roof (with the construction R-value of 2.7).

Efficiency Qualification -Floor insulation minimum R-value of 30 or max fill. -Residential assessment or pre-installation assessment required roof insulation minimum R-value of 20 or max fill.


-Floor insulation value (in R-value). -Heating system type (natural gas boiler, natural gas furnace, heat pump, electric resistance).




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Heating Savings kWh—Floor Insulation—Electric Resistance Space Heat

Where: Sqft = Square footage of insulation area

HDDBasement = Equivalent to basement-ground HDDs = 2,949 24 = Number of hours in a day = 24

COPBase = Coefficient of Performance of space heating system = 1.0 3,412 = Conversion factor from Btu to therms = 3,412 RInitial = R-value of initial floor insulation = 2.7

RConstruction = R-value of bare construction roof = 2.7 RFinal = R-value of new floor insulation = (20 to 60)

Electric Heating Savings kWh—Floor Insulation—Air Source Heat Pump



HSPFBase = Heating Seasonal Performance Factor of ASHP = 7.7* = 8.2**

3,412 = Conversion factor from Btu to therms = 3,412 RInitial = R-value of initial floor insulation = 2.7



64


Electric Heating Savings kWh—Floor Insulation—Geothermal Heat Pump



COPBase = Coefficient of Performance of geothermal heat pump = 3.1 3,412 = Conversion factor from Btu to therms = 3,412 RInitial = R-value of initial floor insulation = 2.7


Natural Gas Savings Therms—Floor Insulation



AFUEBase = Annual Fuel Utilization Efficiency of space heating system = 82% (Boiler) = 78% (Furnace)



ANNUAL ENERGY DEMAND ALGORITHM: Natural Gas Demand Savings Peak Therms—Floor Insulation

Where: Annual Therms = Annual therms savings from floor insulation = Calculated

CF = Peak Gas Coincidence Factor = See Table 74 Electric Demand Heating Savings Peak kW—Floor Insulation—Electric Resistance Space Heat/Air Source Heat Pump/Geothermal Source Heat Pump


65



Manufactured Multifamily Single-family Residential

0.00934793 0.00903212 0.00970261 0.009615235

VARIABLE SOURCES:

Table 75. Floor Insulation Algorithm Sources


Sqft Entered from application form.

HDDBasement

Assuming floor applications primarily interact with ground and basement temperatures. Used a ground-basement HDD Adjustment Factor Calculation. Based on a ground temperature of 53 degrees. TMY3 weather data for the weather station at Des Moines International Airport.

Rinitial Assumed to be similar to wall initial insulation. Based on the recorded 2011 existing R-values, calculated using the average of IPL/Alliant program rebate data of 2011 participants.

Rconstruction Based on building simulations model assumptions and engineering calculations using the parallel path heat transfer theory. With reference to ColoradoENERGY.org: http://www.coloradoenergy.org/procorner/stuff/r-values.htm

RFinal Entered from application form.

HSPFBase Federal Code, 2006 and 2015, 10 CFR 430.32(c)(2) and 10 CFR 430.32(c)(3); after January 1, 2015, the baseline HSPF changes to 8.2.

COPBase COP = 1.0 assumed for an electric forced air furnace (FAF).

AFUEBase Code of Federal Regulations, 10 CFR 430.32(c)(1).

Table 74 Inferred from the 2011 Assessment of Potential.

http://www.coloradoenergy.org/procorner/stuff/r-values.htm


66

Shell: Foundation/Basement Wall Insulation

Measure Description Basement and foundation wall (including rim joist) insulation slows the transfer of heat and reduces heating and cooling loads in buildings.

Fuel Electric/Gas


Baseline Equipment An inadequately insulated foundation/basement wall (R-value of 0) in addition to a bare wall (with the construction R-value of 5.0).


-Basement/basement/rim joists insulation minimum R-value of 15/19 "15/19" means: R-15 continuous insulated sheathing on the interior or exterior of the home; or R-19 cavity insulation at the interior of the basement wall. -15/19 meets with R-13 cavity insulation on the interior of the basement wall, plus R-5 continuous insulated sheathing on the interior or exterior of the home. -Residential assessment or pre-installation assessment required.


-Basement insulation value (in R-value). -Heating system type (natural gas boiler, natural gas furnace, heat pump, electric resistance).




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Heating Savings kWh—Foundation/Basement Insulation—Electric Resistance Space Heat

Where: Sqft = Square footage of foundation/basement wall area

HDD = Below ground HDDs = 4,178 24 = Number of hours in a day = 24

COPBase = Coefficient of Performance of baseline FAF system = 1.0 3,412 = Conversion factor from Btu to kWh = 3,412 RInitial = R-value of initial foundation/basement wall insulation = 0.0

RConstruction = R-value of bare construction foundation/basement wall = 5.0 RFinal = R-value of new foundation/basement wall insulation = (15 to 30)

Electric Heating Savings kWh—Foundation/Basement Insulation—Geothermal Heat Pump


HDD = Below ground HDDs = 4,178 24 = Number of hours in a day = 24

COPBase = Coefficient of Performance of baseline FAF system = 3.1


67

3,412 = Conversion factor from Btu to kWh = 3,412 RInitial = R-value of initial foundation/basement wall insulation = 0.0


Electric Heating Savings kWh—Foundation/Basement Insulation—Air Source Heat Pump



HSPFBase = Heating Seasonal Performance Factor of ASHP = 7.7* = 8.2**




Natural Gas Savings Therms—Foundation/Basement Insulation



AFUEBase = Annual Fuel Utilization Efficiency of space heating system = 82% (Boiler) = 78% (Furnace)



ANNUAL ENERGY DEMAND ALGORITHM: Natural Gas Demand Savings Peak Therms—Foundation/Basement Insulation

Where: Annual Therms = Annual therms savings from foundation/basement wall

insulation = Calculated

CF = Peak Gas Coincidence Factor = See Table 76


68

Electric Demand Heating Savings Peak kW—Foundation/Basement Insulation—Electric Resistance Space Heat/Air Source Heat Pump/Geothermal Source Heat Pump




0.00934793 0.00903212 0.00970261 0.009615235

VARIABLE SOURCES:

Table 77. Foundation/Basement Insulation Algorithm Sources



HDDBasement

Assuming floor applications interact with primarily ground and basement temperatures. Used a ground-basement HDD adjustment factor calculation. Based on a ground temperature of 53 degrees. TMY3 weather data for the weather station at Des Moines International Airport.

Rinitial Assume d an existing basement wall had no existing insulation.

Rconstruction

Assumed a conditioned basement with existing drywall construction. Based on building simulations model assumptions and engineering calculations using the parallel path heat transfer theory. With reference to: http://www.coloradoenergy.org/procorner/stuff/r-values.htm


HSPFBase Federal Code, 2006 and 2015, 10 CFR 430.32(c)(2) and 10 CFR 430.32(c)(3); after January 1, 2015, the baseline HSPF changes to 8.2.

COPBase COP = 1.0 assumed for an electric FAF.







69

Shell: Infiltration Control

Measure Description Sealing air leaks in windows, doors, roof, crawlspaces, and outside walls decreases overall heating and cooling losses.

Fuel Electric/Gas


Baseline Equipment A house with poor infiltration control.

Efficiency Qualification Effective sealing air leaks to reduce infiltration.


-Building size (in ft2).

-Building type. -Heating system type (natural gas boiler, natural gas furnace, heat pump, electric resistance). -Cooling system type (CAC, heat pump, none).




ANNUAL ENERGY SAVINGS ALGORITHM: Electric/Natural Gas Savings kWh/Therms—Infiltration Control

Where:

SavingsPerUnit = Annual savings per square foot depends on heating fuel equipment, in kWh/ft2 or therms/ft2

= Table 78

SqFt = Building square feet = (100 to 10,000) Electric/Natural Gas Demand Savings Peak kW/Therms—Infiltration Control

Where:

Annual kWh = Annual kWh savings from infiltration control = Calculated Annual Therms = Annual therms savings from infiltration control = Calculated

CF = Peak Coincidence Factor = See Table 79 ALGORITHM VARIABLES:

Table 78. Annual Savings of Infiltration Control per Building Square Foot

Building Type HVAC System Therms/ft—SavingsPerUnit

Manufactured Gas Boiler 0.044

Multifamily Gas Boiler 0.036

Single-family Gas Boiler 0.033

Manufactured Gas Furnace 0.034

Multifamily Gas Furnace 0.023

Single-family Gas Furnace 0.027


70

Building Type HVAC System kWh/ft—SavingsPerUnit

Manufactured Central Air Conditioner 0.123

Multifamily Central Air Conditioner 0.085

Single-family Central Air Conditioner 0.101

Manufactured Electric Furnace/Resistance Space Heat 0.826

Multifamily Electric Furnace/Resistance Space Heat 0.569

Single-family Electric Furnace/Resistance Space Heat 0.616

Manufactured Air Source Heat Pump 0.782

Multifamily Air Source Heat Pump 0.502

Single-family Air Source Heat Pump 0.615

Manufactured Air Source Heat Pump—Cooling 0.123

Multifamily Air Source Heat Pump—Cooling 0.085

Single-family Air Source Heat Pump—Cooling 0.101

Manufactured Air Source Heat Pump—Heating 0.659

Multifamily Air Source Heat Pump—Heating 0.417

Single-family Air Source Heat Pump—Heating 0.514


Manufactured Multifamily Single-family All Residential

0.00934793 0.00903212 0.00970261 0.009615235

VARIABLE SOURCES:

Table 80. Infiltration Control Algorithm Sources



Table 78. Annual Savings of Infiltration Control per Building Square Foot

Estimated from the 2011 Assessment of Potential. Based on building simulations for an existing single-family home. Baseline infiltration of 10ACH50 going to 7ACH50, resulting in 5%–10% savings. Savings of 7.5% was applied to HVAC end uses, resulting in savings per square foot by building type, fuel type, and end use.




71

Shell: Roof Insulation

Measure Description Roof insulation slows the transfer of heat and reduces heating and cooling loads in buildings.

Fuel Electric/Gas


Baseline Equipment An inadequately insulated roof (R-value of 15.1) in addition to a bare roof (with the construction R-value of 5.0).

Efficiency Qualification -Roof insulation minimum R-value of 49 or max fill. -Residential assessment or pre-installation assessment required.


-Roof insulation value (in R-value). -Heating system type (natural gas boiler, natural gas furnace, heat pump, electric resistance). -Cooling system type (CAC, heat pump, none).




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Heating Savings kWh—Roof Insulation—Electric Resistance Space Heating

Where: Sqft = Square footage of roof area

HDD = HDDs at 65°F = 6,595 24 = Number of hours in a day = 24

COPBase = Coefficient of Performance of baseline FAF system = 1.0 3,412 = Conversion factor from Btu to kWh = 3,412 RInitial = R-value of initial roof insulation = 15.1

RConstruction = R-value of bare construction roof = 5.0 RFinal = R-value of new roof insulation = (30 to 70)

Electric Cooling Savings kWh - Roof Insulation—Central Air Conditioning

Where: CDD = CDDs at 65°F = 1,289

SEERBase = Seasonal Energy Efficiency Ratio of CAC = 13.0 1,000 = Conversion factor from Watts to kW = 1,000

Electric Savings kWh—Roof Insulation—Air Source Heat Pump


72

Where: SEERBase = Seasonal Energy Efficiency Ratio of ASHP = 13*

14** HSPFBase = Heating Seasonal Performance Factor federal baseline = 7.7*

8.2** *Before 1/1/2015 **After 1/1/2015 Federal Code Change

Electric Savings kWh—Roof Insulation—Geothermal Heat Pump

Where: EERBase = Energy Efficiency Ratio of baseline efficiency system = 13.4 COPBase = Coefficient of Performance of heat pump system = 3.1

Natural Gas Savings Therms—Roof Insulation—Gas Boiler/Furnace Space Heating

Where: AFUEBase = Annual Fuel Utilization Efficiency of baseline efficiency system = Boiler: 82%

Furnace: 78% 100,000 = Conversion factor from Btu to therms

ANNUAL ENERGY DEMAND ALGORITHM: Natural Gas Demand Savings Peak Therms—Roof Insulation—Gas Boiler/Furnace Space Heating

Where: Annual Therms = Annual therms savings from roof insulation = Calculated

CF = Peak Gas Coincidence Factor = See Table 81


73

Electric Demand Savings Peak kW—Roof Insulation—Air Source Heat Pump, Geothermal Source Heat Pump and Air Conditioning System

*Calculate EERBase using the formula above if efficiency is given in SEER.

Where:

CF = Peak Electric Coincidence Factor = See Table 81 Electric Demand Heating Savings Peak kW—Roof Insulation—Electric Resistance Space Heating




Cooling (Electric) 0.00097871 0.00095662 0.00101125 0.001004888

Central Heat (Gas) 0.00934793 0.00903212 0.00970261 0.009615235

VARIABLE SOURCES:

Table 82. Roof Insulation Algorithm Sources



HDD TMY3 weather data for the weather station at Des Moines International Airport.

CDD TMY3 weather data for the weather station at Des Moines International Airport.

RInitial Calculated from IPL/Alliant program rebate data.

RConstruction Source: PA TRM 2013, pg. 90. Uninsulated attic ceiling.


EERBase Code of Federal Regulations, 10 CFR 430.32(c)(2); IECC 2009 Table 503.2.3(1).

SEERBase Code of Federal Regulations, 10 CFR 430.32(c)(2); IECC 2009 Table 503.2.3(1); after January 1, 2015, the baseline SEER changes to 14.0.

COPBase Code of Federal Regulations, 10 CFR 430.32(c)(2); IECC 2009 Table 503.2.3(1).





74

Shell: Wall Insulation

Measure Description Wall insulation slows the transfer of heat and reduces heating and cooling loads in buildings.

Fuel Electric/Gas


Baseline Equipment An inadequately insulated wall (R-value of 2.7) in addition to a bare roof (with the construction R-value of 3.0).

Efficiency Qualification -Wall insulation minimum R-value of 13.0 or max fill. -Residential assessment or pre-installation assessment required.


-Wall insulation value (in R-value). -Heating system type (natural gas boiler, natural gas furnace, heat pump, electric resistance). -Cooling system type (CAC, heat pump, none).




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Heating Savings kWh—Wall Insulation—Electric Resistance Space Heating


HDD = HDDs at 65°F = 6595 24 = Number of hours in a day = 24

3,412 = Conversion factor from Btu to kWh = 3,412 RInitial = R-value of initial wall insulation = 2.7

RConstruction = R-value of bare construction roof = 3.0 RFinal = R-value of new wall insulation = (9 to 30)

Electric Cooling Savings kWh—Wall Insulation—Central Air Conditioning

Where: CDD = CDDs at 65°F = 1,289

SEERBase = Seasonal Energy Efficiency Ratio of CAC = 13.0 1,000 = Conversion factor from watts to kW = 1,000

Electric Savings kWh—Wall Insulation—Air Source Heat Pump


75

Where: SEERBase = Seasonal Energy Efficiency Ratio of ASHP = 13*

14** HSPFBase = Heating Seasonal Performance Factor federal baseline = 7.7*

8.2** *Before 1/1/2015 **After 1/1/2015 Federal Code Change

Electric Savings kWh—Wall Insulation—Geothermal Heat Pump

Where: EERBase = Energy Efficiency Ratio of baseline efficiency system = 13.4 COPBase = Coefficient of Performance of heat pump system = 3.1

Natural Gas Savings Therms—Wall Insulation—Gas Boiler/Furnace Space Heating

Where:

AFUEBase = Annual Fuel Utilization Efficiency of baseline efficiency system = Boiler: 82% Furnace: 78%

100,000 = Conversion factor from Btu to therms ANNUAL ENERGY DEMAND ALGORITHM: Natural Gas Demand Savings Peak Therms—Wall Insulation—Gas Boiler/Furnace Space Heating

Where: Annual Therms = Annual therms savings from wall insulation = Calculated

CF = Peak Gas Coincidence Factor = See Table 83 Electric Demand Savings Peak kW—Wall Insulation—Air Source Heat Pump, Geothermal Source Heat Pump and Air Conditioning System


76

*Calculate EERBase using the formula above if efficiency is given in SEER.

Where:

CF = Peak Electric Coincidence Factor = See Table 72 Electric Demand Heating Savings Peak kW - Wall Insulation - Electric Resistance Space Heating




Cooling (Electric) 0.00097871 0.00095662 0.00101125 0.001004888

Central Heat (Gas) 0.00934793 0.00903212 0.00970261 0.009615235

VARIABLE SOURCES:

Table 84. Wall Insulation Algorithm Sources



HDD TMY3 weather data for the weather station at Des Moines International Airport.

CDD TMY3 weather data for the weather station at Des Moines Intl Airport.

RInitial Calculated from IPL/Alliant program rebate data.

RConstruction Source: PA TRM 2013, pg. 90. Uninsulated attic ceiling.



SEERBase Code of Federal Regulations, 10 CFR 430.32(c)(2); IECC 2009 Table 503.2.3(1); after January 1, 2015, the baseline SEER changes to 14.0.






77

Water Heat: Faucet Aerator

Measure Description

A faucet aerator can be attached to the faucet head to aerate the water stream while lowering the flow rate, without altering the perceived water pressure. This reduces hot water demand and consequently reduces the energy required to heat the water.

Fuel Electric/Gas

End Use Water Heat

Baseline Equipment Standard faucet without faucet aerator (2.2 gallons per minute [GPM]).

Efficiency Qualification Low-flow faucet aerator (1.5 GPM).


Number of faucet aerators installed.




ANNUAL ENERGY SAVINGS ALGORITHM: Electric/Natural Gas Savings kWh/Therms—Faucet Aerator

Where: ElectricSavingsPerUnit = Annual kWh savings per faucet aerator = See Table 85

GasSavingsPerUnit = Annual therms savings per faucet aerator = See Table 85 Units = Number of low-flow faucet aerators installed

Electric/Natural Gas Demand Savings Peak kW/Therms—Faucet Aerator

Where:

Annual kWh = Annual kWh savings from a faucet aerator = Calculated Annual Therms = Annual therms savings from a faucet aerator = Calculated


Table 85. Per-Unit Electric and Gas Savings from Faucet Aerators

End Use Faucet Type GasSavings

[Therms/unit/yr] ElectricSavings [kWh/unit/yr]

Gas Water Heater Bathroom 1.4 30.3

Gas Water Heater Kitchen 9.6 209.1

Gas Water Heater Weighted Average 2.8 60.5


78



Water Heat (Gas) 0.00290826 0.00290604 0.00290983 0.002909472

Water Heat (Electric) 0.00009951 0.00009959 0.00009868 0.00009885

VARIABLE SOURCES:

Table 87. Faucet Aerator Algorithm Sources


ElectricSavingsPerUnit Calculated using algorithm found in PA Technical Reference Manual 2013, pg. 42.

GasSavingsPerUnit Calculated using algorithm found in PA Technical Reference Manual 2013, pg. 42).


Table 86. Peak Coincidence Factor Inferred from the 2011 Assessment of Potential.


79

Water Heat: Low-Flow Showerhead

Measure Description A low-flow showerhead reduces the flow rate of the showerhead fixture. This reduces hot water demand and consequently reduces the energy required to heat water.

Fuel Electric/Gas

End Use Water Heat

Baseline Equipment Standard showerhead (2.5 GPM).

Efficiency Qualification Low-flow showerhead (1.5 GPM).


Number of low-flow showerheads installed.




ANNUAL ENERGY SAVINGS ALGORITHM: Electric/Natural Gas Savings kWh/Therms—Low-Flow Showerhead

Where: ElectricSavingsPerUnit = Annual kWh savings per low-flow showerhead = 279.33

GasSavingsPerUnit = Annual therms savings per low-flow showerhead = 12.76 Units = Number of low-flow showerheads installed

Electric/Natural Gas Demand Savings Peak kW/Therms—Low-Flow Showerhead

Where:

Annual kWh = Annual kWh savings from a low-flow showerhead = Calculated Annual Therms = Annual therms savings from a low-flow showerhead = Calculated




Water Heat (Gas) 0.00290826 0.00290604 0.00290983 0.002909472



80

VARIABLE SOURCES:

Table 89. Low-Flow Showerhead Algorithm Sources


ElectricSavingsPerUnit Calculated using algorithm found in PA Technical Reference Manual 2013, pg. 42.

GasSavingsPerUnit Calculated using algorithm found in PA Technical Reference Manual 2013, pg. 42).





81

Water Heat: Water Heater Pipe Insulation

Measure Description Water heater pipe insulation reduces heat loss from pipes, increasing efficiency and reducing the amount of required heating energy.

Fuel Electric/Gas

End Use Water Heat

Baseline Equipment Water heater pipe without insulation.

Efficiency Qualification Insulation increases the R-Value from below code (bare pipe) to R-6.


-Building type. -Water heat type (electric or gas).




ANNUAL ENERGY SAVINGS ALGORITHM: Electric/Natural Gas Savings kWh/Therms—Water Heater Pipe Insulation

Where: ElectricSavingsPerInstall = Annual kWh savings per low-flow showerhead = 61.18

GasSavingsPerInstall = Annual therms savings per low-flow showerhead = 2.67 Electric/Natural Gas Demand Savings Peak kW/Therms—Water Heater Pipe Insulation

Where:

Annual kWh = Annual kWh savings from water heater pipe insulation = 61.18 Annual Therms = Annual therms savings from water heater pipe insulation = 2.67




Water Heat (Gas) 0.00290826 0.00290604 0.00290983 0.002909472



82

VARIABLE SOURCES:

Table 91. Water Heater Pipe Insulation Algorithm Sources


ElectricSavingsPerInstall Temperatures were averaged into 3-foot increments, and ran through the 3E Plus v4.0 to determine heat loss: http://www.pipeinsulation.org/ Runs were completed for horizontal and vertical and for each ambient air temperature. With reference to ASHRAE Fund 2009, Table 23.16 for copper heat loss tables, data from 3E Plus were weight-averaged into three savings estimates: for conditioned space (winter, summer) and unconditioned space.

GasSavingsPerInstall



http://www.pipeinsulation.org/


83

Water Heat: Water Heater Temperature Setback

Measure Description

Thermostat setbacks for water heaters achieve behavioral changes of setting water heater temperatures to a lower set temperature of 120 degrees. End-use savings are realized when end-use set temperatures equal or exceed the water heater thermostat set temperature.

Fuel Electric/Gas

End Use Water Heat

Baseline Equipment Water heater set temperature of 126.5 degrees.

Efficiency Qualification Water heater temperature turned down to 120 degrees.



Market Opportunity Behavioral Change



ANNUAL ENERGY SAVINGS ALGORITHM: Electric/Gas Savings kWh/Therms—Water Heater Temperature Setback

Where: ElectricSavingsPerInstall = Annual kWh savings from water heater temperature

setbacks for electric storage water heaters = 116.55

GasSavingsPerInstall = Annual therms savings from water heater temperature setbacks for gas storage water heaters

= 6.41

Units = Number of units with water heater temperatures turned down

ANNUAL ENERGY DEMAND ALGORITHM: Electric/Gas Demand Savings Peak kW/Therms—Water Heater Temperature Setback

Where:





Water Heat (Gas) 0.00290826 0.00290604 0.00290983 0.002909472



84

VARIABLE SOURCES:

Table 93. Water Heater Temperature Setback Algorithm Sources


ElectricSavingsPerUnit

Savings percentage values were averaged from the following state TRMs and applied to the typical energy use of a water heater with a baseline set temperature of 126.5 degrees. -Efficiency Vermont Technical Reference User Manual, pg.405: http://www.greenmountainpower.com/upload/photos/371371TRM_User_Manual_No_2013-82-5-protected.pdf -Efficiency Maine Residential Technical Reference Manual, pg.24: http://www.efficiencymaine.com/docs/EMT-TRM_Residential_v2014-1.pdf -Massachusetts Technical Reference Manual PY 2013-2015, pg.317: http://www.ma-eeac.org/Docs/8.3_TRMs/1MATRM_2013-15%20PLAN_FINAL.pdf

GasSavingsPerUnit



http://www.greenmountainpower.com/upload/photos/371371TRM_User_Manual_No_2013-82-5-protected.pdf


http://www.efficiencymaine.com/docs/EMT-TRM_Residential_v2014-1.pdf

http://www.ma-eeac.org/Docs/8.3_TRMs/1MATRM_2013-15%20PLAN_FINAL.pdf



85

Be-Bright Program Table 94. Be-Bright Program Overview

Eligible Customers


Customer Class All – Customer Status All – Building Type All – Building Vintage All – Geography IPL’s Iowa service territory –


86

Compact Fluorescent Light (CFL)

Measure Description

Be-Bright is an upstream program, with IPL providing incentives directly to lighting manufacturers to reduce the purchase costs of ENERGY STAR-rated, high-efficiency lighting products at participating retailer locations. The section of the program seeks to replace standard light bulbs with efficient-wattage CFLs.

Fuel Electric

End Use Lighting

Baseline Equipment Incandescent bulbs; baseline wattage varies depending on the CFL wattage range.


An implementation contractor (WECC) manages the Be-Bright Program; its services include: negotiating bulk pricing, recruitment, coordinating with retail stores, marketing and outreach to retailers, and tracking and providing program reports. WECC works with a broad range of retailers, including big-box stores and smaller local and independent stores throughout IPL’s service territory. (WECC implements the program for both IPL and MidAmerican.)


-Number of CFLs purchased. -Wattage of new efficient CFLs.

Market Opportunity Replace on Burnout; Retrofit

Sector(s) Residential; Nonresidential; Agriculture

Program Be-Bright

ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—CFL

Where:

WattsBase = Wattage of standard baseline light bulb = See Table 95 WattsEff = Wattage of efficient light bulb = See Table 95

1,000 = Conversion factor from watts to kilowatts = 1,000 HOU = Annual hours of standard lighting operation = 1,057 Units = Number of bulbs replaced

Electric Demand Savings Peak kW—CFL

Where:

Annual kWh = Annual kWh savings from standard lighting bulb replacement = Calculated CF = Peak Coincidence Factor = 0.00016347


87


Table 95. Baseline and Efficient Wattage for CFL in Be-Bright Program

Efficient CFL Wattage Range WattsEff WattsBase: Replaced Before

or in 2014 WattsBase: Replaced After

or in 2015

1–8 8 25 25

9 9 40 29

10–15 15 60 43

16–22 22 53 53

23–29 29 72 72

30–52 52 150 150

53–65 65 250 250

66–70 70 300 300

VARIABLE SOURCES:

Table 96. CFL Algorithm Sources


HOU Weighted average of annual hours-of-use by sector. WECC assumptions based on WECC documentation provided to IPL on December 24, 2013: "IA Savings Table_2013" (Updated for 2014).


CF Weighted average of CF by sector. WECC assumptions based on WECC documentation provided to IPL on December 24, 2013: "IA Savings Table_2013" (Updated for 2014).

Table 95. Baseline and Efficient Wattage for CFL in Be-Bright Program

WattsBase: WECC assumptions; new EISA baselines for 40w and 60w, beginning the new baseline on those wattages in 2015. Based on WECC documentation provided to IPL on December 24, 2013: "IA Savings Table_2013" (Updated for 2014). WattsEff: WECC assumptions based on WECC documentation provided to IPL on December 24, 2013: "IA Savings Table_2013" (Updated for 2014).


88

Light Emitting Diode (LED)

Measure Description

Be-Bright is an upstream program, with IPL providing incentives directly to lighting manufacturers to reduce the purchase costs of ENERGY STAR-rated, high-efficiency lighting products at participating retailer locations. The section of the program seeks to replace standard light bulbs with efficient-wattage LEDs.

Fuel Electric

End Use Lighting

Baseline Equipment Incandescent bulbs; the baseline wattage varies depending on the LED wattage range.




-Number of LEDs purchased. -Wattage of new efficient LEDs.



Program Be-Bright

ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—LED

Where:

WattsBase = Wattage of standard baseline light bulb = See Table 97 WattsEff = Wattage of efficient light bulb = See Table 97

1,000 = Conversion factor from watts to kilowatts = 1,000 HOU = Annual hours of standard lighting operation = 985 Units = Number of bulbs replaced

Electric Demand Savings Peak kW—LED

Where:

Annual kWh = Annual kWh savings from standard lighting bulb replacement = Calculated CF = Peak Coincidence Factor = 0.00016070


89


Table 97. Baseline and Efficient Wattage for LED in Be-Bright Program

Efficient CFL Wattage Range

WattsEff WattsBase: Replaced before or

in 2014 WattsBase: Replaced after or in

2015

1-8 8 25 25

9 9 40 29

10-15 15 60 43

16-22 22 53 53

23-29 29 72 72

30-52 52 150 150

53-65 65 250 250

66-70 70 300 300

VARIABLE SOURCES:

Table 98. LED Algorithm Sources


HOU Weighted average of annual hours-of-use by sector. WECC assumptions based on WECC documentation provided to IPL on December 24, 2013:- "IA Savings Table_2013" (Updated for 2014).


CF Weighted average of CF by sector. WECC assumptions based on WECC documentation provided to IPL on December 24, 2013: "IA Savings Table_2013" (Updated for 2014).

Table 97. Baseline and Efficient Wattage for LED in Be-Bright Program

WattsBase: WECC assumptions; new EISA baselines for 40 and 60w and beginning the new baseline on those wattages in 2015. Based on WECC documentation provided to IPL on December 24, 2013: "IA Savings Table_2013" (Updated for 2014). WattsEff: WECC assumptions based on WECC documentation provided to IPL on December 24, 2013: "IA Savings Table_2013" (Updated for 2014).


90

LED Holiday String Light

Measure Description

Be-Bright is an upstream program, with IPL providing incentives directly to lighting manufacturers to reduce the purchase costs of ENERGY STAR-rated, high-efficiency lighting products at participating retailer locations. The section of the program seeks to replace standard light bulbs with efficient-wattage string LEDs.

Fuel Electric

End Use Lighting

Baseline Equipment Incandescent bulbs; baseline wattage varies depending on the LED wattage range.




-Number of LED holiday string lights purchased. -Wattage of new efficient LED holiday string lights.



Program Be-Bright

ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—LED Holiday String Light

Where: LEDHolidaySavings = kWh savings per LED holiday string = 8.369

Units = Number of holiday light strings replaced Electric Demand Savings Peak kW—LED Holiday String Light

Where:

Annual kWh = Annual kWh savings from standard holiday light replacement = Calculated CF = Peak Coincidence Factor = 0


91

VARIABLE SOURCES:

Table 99. LED Holiday String Light Algorithm Sources


LEDHolidaySavings WECC assumptions based on WECC documentation provided to IPL on December 24, 2013: "IA Savings Table_2013" (Updated for 2014).


CF Assume zero peak savings for winter holiday lights. WECC assumptions based on WECC documentation provided to IPL on December 24, 2013: "IA Savings Table_2013" (Updated for 2014).


92

Appliance Recycling Program

Table 100. Appliance Recycling Program Overview

Eligible Customers

Customer Class Residential and commercial electric rate

Customer Status All

Building Type Single-family; Manufactured home; Multifamily, Commercial property

Building Vintage All


Other Appliances must be operational and 10 cubic feet or larger


93

Refrigerator/Freezer Recycling

Measure Description Recycling of existing refrigerator and/or freezer.

Fuel Electric

End Use Refrigeration

Baseline Equipment Refrigerator and/or freezer at the end of their effective useful life.



Number of refrigerators/freezers recycled.

Market Opportunity Recycling


Program Appliance Recycling Program

ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Refrigerators/Freezers Recycling

Where:

SavingsPerUnit = Annual kWh savings per recycled unit by year = See Table 101

Unit = Number of units recycled Electric Demand Savings Peak kW—Refrigerators/Freezers Recycling

Where:

Annual kWh = Annual kWh savings from refrigerator/freezer recycling = Calculated CF = Peak Coincidence Factor = See Table 102


Table 101. Annual kWh Savings per Recycled Unit by Year

Appliance Type Year 1 Year 2 Year 3 Year 4 Year 5

Refrigerator 1,143.14 1,100.96 1,060.34 1,021.23 983.55

Freezer 924.81 890.69 857.83 826.18 795.70



0.00011478 0.00011418 0.00011425 0.00011427

Grocery, Convenience

Store, and Restaurant

Lodging, Hospital, and Multifamily

Health Clinic, Church,

Warehouse, and Other

Commercial

Education, Office, and

Retail Industrial Agriculture

All Commercial

0.00014802 0.00014802 0.00014802 0.00014802 0.00013081 0.00013081 0.00014802


94

VARIABLE SOURCES:

Table 103. Refrigerator/Freezer Recycling Algorithm Sources


Unit Entered from application form.

Table 101. Annual kWh Savings per Recycled Unit by Year

Cadmus has conducted many evaluations of refrigerator and freezer recycling programs and, as part of these studies, has developed regression models to estimate the annual consumption of recycled appliances, based on age, weather, configuration (side-by-side, top freezer, etc.), and whether the unit is primary or secondary. Consumption used as the dependent variable derived from metering of recycled units. Applied Des Moines weather along with data from IPL’s 2011 program tracking database (age and configuration) to these regression parameters estimated average gross savings for refrigerators and freezers. This analysis produced 1,239 kWh and 1,029 kWh for refrigerators and freezers, respectively. The final annual kWh savings values are subsequently calculated by applying the part-use factor and the annual de-rating factor.




95

Room Air Conditioner Recycling

Measure Description Recycling of existing Room Air Conditioner (RAC).

Fuel Electric

End Use HVAC

Baseline Equipment Room Air Conditioner at the end of its effective useful life.



Number of Room Air Conditioners recycled.

Market Opportunity Recycling


Program Appliance Recycling Program

ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Room Air Conditioner Recycling

Where:

SavingsPerUnit = Annual kWh savings per recycled unit by year = 152.6

Unit = Number of units recycled Electric Demand Savings Peak kW—Room Air Conditioner Recycling

Where:

Annual kWh = Annual kWh savings from RAC recycling = Calculated CF = Peak Coincidence Factor = See Table 104




0.00011478 0.00011418 0.00011425 0.00011427






Commercial



All Commercial

0.00014802 0.00014802 0.00014802 0.00014802 0.00013081 0.00013081 0.00014802


96

VARIABLE SOURCES:

Table 105. Room Air Conditioner Recycling Algorithm Sources


SavingsPerUnit

Savings were calculated assuming existing 10,000 BtuH EER 7.7 RAC units were recycled and replaced by EER 9.8 RAC units, with the recycling percentage of 76%.( OH TRM—Based on Nexus Market Research Inc., RLW Analytics, December 2005; “Impact, Process, and Market Study of the Connecticut Appliance Retirement Program: Overall Report.” Report states that 63% were replaced with ENERGY STAR units and 13% with non-ENERGY STAR. OH TRM assumes this formula that all are non-ENERGY STAR since the increment of savings between baseline units and ENERGY STAR would be recorded by the Efficient Products program when the new unit is purchased.)





97

New Home Construction Program Table 106. New Home Construction Program Overview

Eligible Customers

Customer Class Residential electric or natural gas

Customer Status Homeowners; builders; developers

Building Type Single-family

Building Vintage New construction



98

Builder Option Package

Measure Description

The program offers two participation options: a measure-based (prescriptive) approach and a performance-based approach. For the measure-based option, homeowners or builders must meet the program specifications by installing the prescriptive measures included in a builder option package (BOP). The performance-based option focuses on achieving a minimum Home Energy Rating System (HERS) score in one of two performance tiers. Qualified air source heat pumps must have SEER/EER 15/12.5 (Split System) and HSPF 8.5 or higher ratings than conventional models. Qualified central air conditioners have SEER/EER 15/12.5 (Split System) or higher ratings than conventional models. Efficient furnaces with a quality installation use less energy than conventional furnaces with a minimum of 94% AFUE. A high-efficiency water heater reduces standby losses and therefore proves more efficient than a standard gas water heater. Tank-less water heaters provide hot water at a preset temperature when needed and without storage, thereby reducing or eliminating standby losses. A heat pump water heater moves heat from a warm reservoir (such as air), transferring this heat into the hot water system.

Fuel Electric/Gas

End Use HVAC/Water Heat

Baseline Equipment N/A


-Must implement measures in the heating, cooling and water heating categories where IPL fuel is available. -Central air conditioning SEER/EER 15/12.5 (Split System); must be SAVE installed. -Furnace 94%; must be SAVE installed. -Air source heat pump system SEER/EER 15/12.5 and HSPF 8.5; must be SAVE installed. -Gas storage water heater ENERGY STAR with EF = 0.67. -Gas tankless water heater ENERGY STAR with EF = 0.82. -Electric heat pump water heater ENERGY STAR with EF = 2.0. Bonus: -Geothermal Heat Pump: Tier 1 EER 14.0 and 3.0 COP or better. -Geothermal Heat Pump: Tier 2 EER 18.0 and 4.0 COP or better. -Geothermal Heat Pump: Tier 3 EER 23.0 and 5.0 COP or better. -Drain water heat recovery system.


-Water heater capacity (gallons). -Equipment Size (heating and/or cooling in MBtu/h or Tons). -Efficiency (in SEER and/or EER or AFUE or COP or EF). -Geothermal Application Type (Water-to-Water, Water-to-Air, Direct Geoexchange). -Geothermal Equipment Type (Water-Loop Heat Pump, Ground-Water Heat Pump, Ground-Loop Heat Pump). -Geothermal System Type (Open Loop, Closed Loop). -Variable Speed Geothermal systems (Y/N). -Installation date. -Manufacture date (water heaters only).



Program New Home Construction Program


99

NEW HOME CONSTRUCTION—BOP—HEATING AND COOLING CUSTOMERS (ELECTRIC ONLY): ELECTRIC HEATING, COOLING, AND WATER HEATING

This measure is for homes with electric heating, cooling, and water heating systems.

Electric Savings kWh—Air Source Heat Pump and Water Heating

Where:

SEERBase = Seasonal Energy Efficiency Ratio federal baseline in Btu/W-h = See Table 107 SEEREff = Seasonal Energy Efficiency Ratio of new high-efficiency

system in Btu/W-h = See Table 107Error!

eference source not found.

HSPFBase = Heating Seasonal Performance Factor federal baseline in Btu/W-h

= See Table 107Error! eference source not found.

HSPFEff = Heating Seasonal Performance Factor of new high-efficiency system in Btu/W-h

= See Table 107

SFC = Cooling Savings Factor for Quality Installation = 10.5% SFH = Heating Savings Factor for Quality Installation = 11.8%

CAPC = Capacity of cooling system in MBtu/h (CAP = MBtu/h = Tons × 12)

= 36* (4 to 65)

CAPH = Capacity of heating system in MBtu/h (CAP = MBtu/h = Tons × 12)

= 36* (4 to 65)

EFLHC = Equivalent Full Load Hours of cooling = 484 EFLHH = Equivalent Full Load Hours of heating = 2160

Tout = Temperature of hot water exiting water heater in °F = 126.5 Tmains = Temperature ground water entering hot water heater in °F = 56.5

Nppl = Number of people per home with electric hot water heating = 2.12


100

Ce1 = Constant used to calculate baseline energy factor = See Table 107 Ce2 = Constant used to calculate baseline energy factor = See Table 107

GAL = Tank size in gallons = 40* (40 to 120) 23.0 = Gallons of hot water used per person per day = 23.0 8.33 = Specific weight of water in lbs/gal = 8.33

1 = Specific heat of water Btu/lb°F = 1 365 = Number of days in a year = 365

3,412 = Conversion factor from Btu/h to kilowatts = 3412 EFBase = Energy Factor of baseline heat pump water heater = Calculated

EFeff = Energy Factor of efficient heat pump water heater = (2.0 to 3.0) Unit = Number of Rebated Units

Electric Demand Savings kW—Air Source Heat Pump and Water Heating

Where:

EERBase = Energy Efficiency Ratio of baseline efficiency system in Btu/W-h

= See Table 107

EEREff = Energy Efficiency Ratio of new high-efficiency efficiency system in Btu/W-h

= See Table 107

CFcooling = Cooling Peak Coincidence Factor = 0.00101125 CFWH = Water Heating Peak Coincidence Factor = 0.00009868


101

NEW HOME CONSTRUCTION—BOP—HEATING AND COOLING CUSTOMERS (ELECTRIC AND NATURAL GAS): ELECTRIC HEATING/COOLING, NATURAL GAS WATER HEATING

This measure is for homes with electric heating and cooling, and gas water heating systems.

Electric Savings kWh—Air Source Heat Pump

Where:


system in Btu/W-h = See Table 108


= See Table 108


= See Table 108



= 36* (4 to 65)

CAPH = Capacity of heating system in MBtu/h (CAP = MBtu/h = Tons × 12)

= 36* (4 to 65)

EFLHC = Equivalent Full Load Hours of cooling = 484 EFLHH = Equivalent Full Load Hours of heating = 2160

Gas Savings Therms—Water Heater


102

Where: Tout = Temperature of hot water exiting water heater in °F = 126.5

Tmains = Temperature ground water entering hot water heater in °F = 56.5 Nppl = Number of people per home with gas hot water heating = 2.16 Cg1 = Constant used to calculate baseline energy factor = See Table 108 Cg2 = Constant used to calculate baseline energy factor = See Table 108



100,000 = Conversion factor from Btu to therms = 100000 EFBase = Energy Factor of baseline heat pump water heater = Calculated


Electric Demand Savings kW—Air Source Heat Pump

Where:


= See Table 108

EEREff = Energy Efficiency Ratio of new high-efficiency system in Btu/W-h

= See Table 108

CFcooling = Cooling Peak Coincidence Factor = 0.00101125


103

ELECTRIC COOLING, NATURAL GAS HEATING/WATER HEATING

This measure is for homes with natural gas heating and water heating systems and electric cooling systems. Electric Savings kWh—Central Air Conditioner and Water Heater

Where:


system in Btu/W-h = See Table 109


= See Table 109


= See Table 109



= 36* (4 to 65)

Gas Savings Therms—Furnace and Water Heater

Where:

AFUEBase = Annual Fuel Utilization Efficiency for the baseline efficiency = AFUEEff = Annual Fuel Utilization Efficiency for new high-efficiency

heating equipment = (94%-99%)

CAP = Input capacity of heating system in MBtu/h = 60* (28 to 225) EFLHH = Equivalent Full Load Hours of heating = 532

+ QI


104

SFH = Heating Savings Factor for Quality Installation of furnace = 2% 100 = Conversion factor from MBtu to therms = 100 Tout = Temperature of hot water exiting water heater in °F = 126.5




100,000 = Conversion factor from Btu to therms = 100000 EFBase = Energy Factor of baseline heat pump water heater = Calculated

EFeff = Energy Factor of efficient heat pump water heater = (0.67 to 0.82) Unit = Number of rebated units

Electric Demand Savings Peak kW—Central Air Conditioner

Where:


= See Table 109

EEREff = Energy Efficiency Ratio of new high-efficiency system in Btu/W-h

= See Table 109

CFcooling = Cooling Peak Coincidence Factor = 0.00101125 Gas Savings Peak Therms—Furnace and Water Heater

Where: CFHeating = Heating Peak Coincidence Factor = 0.00970261

CFWH = Water Heating Peak Coincidence Factor = 0.00290983


105

ELECTRIC COOLING/WATER HEATING, NATURAL GAS HEATING

This measure is for homes with natural gas heating systems and electric cooling and water heating systems.

Where: SEERBase = Seasonal Energy Efficiency Ratio federal baseline in Btu/W-h = See Table 110

SEEREff = Seasonal Energy Efficiency Ratio of new high-efficiency system in Btu/W-h

= See Table 110


= See Table 110


= See Table 110



= 36* (4 to 65)


Nppl = Number of people per home with electric hot water heating = 2.12 Ce1 = Constant used to calculate baseline energy factor = See Table 110 Ce2 = Constant used to calculate baseline energy factor = See Table 110





Gas Savings Therms—Furnace

+ QI


106

Where:

AFUEBase = Annual Fuel Utilization Efficiency for the baseline efficiency = AFUEEff = Annual Fuel Utilization Efficiency for new high-efficiency



SFH = Heating Savings Factor for Quality Installation of furnace = 2% 100 = Conversion factor from MBtu to therms = 100 Unit = Number of rebated units

Electric Demand Savings kW—Central Air Conditioner and Water Heating

Where:


= See Table 110


= See Table 110


Gas Savings Peak Therms—Furnace

Where:

CFHeating = Heating Peak Coincidence Factor = 0.00970261


107

NEW HOME CONSTRUCTION—BOP—HEATING ONLY CUSTOMERS (NATURAL GAS):

This measure is for homes with natural gas heating and water heating systems, and where another utility provides electricity. (An optional tankless water heater can be used in place of the high-efficiency standard water heater; the calculation methodology is very similar.) Gas Savings Therms—Furnace and Water Heater

Where:

AFUEBase = Annual Fuel Utilization Efficiency for the baseline efficiency = See Table 111 AFUEEff = Annual Fuel Utilization Efficiency for new high-efficiency



SFH = Heating Savings Factor for Quality Installation of furnace = 2% 100 = Conversion factor from MBtu to therms = 100 Tout = Temperature of hot water exiting water heater in °F = 126.5




100,000 = Conversion factor from Btu to therms = 100,000 EFBase = Energy Factor of baseline heat pump water heater = Calculated

EFeff = Energy Factor of efficient heat pump water heater = (0.67 to 0.82) Unit = Number of rebated units

Gas Savings Peak Therms—Furnace and Water Heater

+ QI


108

Where:

CFHeating = Heating Peak Coincidence Factor = 0.00970261 CFWH = Water Heating Peak Coincidence Factor = 0.00290983


109

NEW HOME CONSTRUCTION—BOP—COOLING ONLY CUSTOMERS (ELECTRIC):

This measure is for homes with electric cooling systems heat pump water heaters, where another utility provides natural gas.

Where: SEERBase = Seasonal Energy Efficiency Ratio federal baseline in Btu/W-h = See Table 112

SEEREff = Seasonal Energy Efficiency Ratio of new high-efficiency system in Btu/W-h

= See Table 112


= See Table 112


= See Table 112



= 36* (4 to 65)


Nppl = Number of people per home with electric hot water heating = 2.12 Ce1 = Constant used to calculate baseline energy factor = See Table 112 Ce2 = Constant used to calculate baseline energy factor = See Table 112





Electric Demand Savings kW—Central Air Conditioner and Water Heating


110

Where:


= See Table 112


= See Table 112



111

OPTIONAL MEASURES:

Optional measures include Drain Water Heat Recovery System and Geothermal Heat Pump System in place of an Air Source Heat Pump System.


Where:


EERFL-Eff = Rated full load Energy Efficiency Ratio of high-efficiency system CAPFL-C = Rated full load capacity of cooling system in MBtuh (Tons × 12) = Range (4 to 240) EFLHC = Equivalent Full Load Hours of cooling = 484



COPFL-Eff = Rated full load Coefficient of Performance of efficient system CAPH = Rated full load capacity of heating system in MBtuh (Tons × 12) = Range (4 to 240)

EFLHH = Equivalent Full Load Hours of heating = 2,160 3.412 = Conversion factor from Btuh to watts = 3.412



Where:


= 0.5

FLFH = Full load heating mode operation factor where heating mode the GSHP operates 50% of the time at full load (less efficient) and

= 0.5


112

50% at partial load (more efficient).


= 0.85


= 0.15

CAPFL-C = Rated full load capacity of cooling system in MBtuh = Range (4 to 240) Default: 36

CAPFL-H = Rated full load capacity of heating system in MBtuh = Range (4 to 240) Default: 36







EFLHC = Equivalent Full Load Hours of Cooling = 484 EFLHH = Equivalent Full Load Hours of Heating = 2,160 3.412 = Conversion Btuh per watt = 3.412




Where:

CF = Peak Coincidence Factor = 0.00101125

Electric Savings kWh—Drainwater Heat Recovery

Where: TFinal = Temperature of final raise in water from the drainwater heat

recovery unit in °F = 74.0

D


113

TOut = Temperature of hot water exiting water heater in °F = 126.5 TMains = Temperature ground water entering hot water heater in °F = 56.5

23 = Gallons of hot water used per person per day = 23 Nppl = Number of people per home with electric hot water heating = 2.12

8.33 = Specific weight of water in lbs/gal = 8.33 1 = Specific heat of water Btu/lb°F = 1

365 = Number of days in a year = 365 RE = Recovery efficiency of the electric water heater = 0.98

3,412 = Conversion factor from Btu/h to kilowatts = 3,412

Electric Savings Peak kW—Drainwater Heat Recovery

Where: CF = Peak Coincidence Factor = 0.00009868

Gas Savings Therms—Drainwater Heat Recovery

Where:

TFinal = Temperature of final raise in water from the drainwater heat recovery unit in °F

= 74.0


23 = Gallons of hot water used per person, per day = 23 Nppl = Number of people per home with gas hot water heating = 2.16


365 = Number of days in a year = 365 RE = Recovery efficiency of the gas water heater = 0.75

100,000 = Conversion factor from Btu to therms = 100,000 Gas Savings Peak Therms—Drainwater Heat Recovery

Where:


D


114


Table 107. Electric Heating/Cooling, Electric Water Heating Path

Required Measures

Minimum Installed

EfficiencyEff

Baseline EfficiencyBase

Prior 1/1/2015 Post 1/1/2015

ASHP

15 SEER 13 SEER 14 SEER

12.5 EER 11.2 EER 11.8 EER

8.5 HSPF 7.7 HSPF 8.2 HSPF

Heat Pump Water Heater (HPWH)

Prior 1/1/2016 Post 1/1/2016

2.0 EF

0.97 Ce1 0.96 ≥ 20 and ≤ 55gal Ce1

2.057 > 55 and ≤ 120gal Ce1

0.00132 Ce2 0.0003 ≥ 20 and ≤ 55gal Ce2

0.00113 > 55 and ≤ 120gal Ce2

Table 108. Electric Heating/Cooling, Natural Gas Water Heating Path

Required Measures

Minimum Installed EfficiencyEff Baseline EfficiencyBase

Prior 1/1/2015 Post 1/1/2015

ASHP 15 SEER 13 SEER 14 SEER

12.5 EER 11.2 EER 11.8 EER

8.5 HSPF 7.7 HSPF 8.2 HSPF

Gas Water Heating

Prior 1/1/2016 Post 1/1/2016

0.67 Ce1

0.675 ≥ 20 and ≤ 55gal Ce1

Storage Tank 0.67 EF 0.8012 > 55 and ≤ 120gal Ce1

Tankless 0.82 EF 0.0019 Ce2 0.0015 ≥ 20 and ≤ 55gal Ce2

0.00178 > 55 and ≤ 120gal Ce2

Table 109. Electric Cooling, Natural Gas Heating/Water Heating Path

Required Measures Minimum Installed

EfficiencyEff Baseline EfficiencyBase

Central Air Conditioner 15 SEER 13 SEER

12.5 EER 11.2 EER

HPWH

Prior 1/1/2016 Post 1/1/2016

2.0 EF

0.97 Ce1 0.96 ≥ 20 and ≤ 55gal Ce1

2.057 > 55 and ≤ 120gal Ce1

0.00132 Ce2 0.0003 ≥ 20 and ≤ 55gal Ce2

0.00113 > 55 and ≤ 120gal Ce2


115

Table 110. Electric Cooling/Water Heating, Natural Gas Heating Path

Required Measures


Furnace Furnace AFUE 94% Furnace AFUE 80%

Central Air Conditioner

15 SEER 13 SEER

12.5 EER 11.2 EER

Water Heating

Gas Water Heating Prior 1/1/2016 Post 1/1/2016

0.67 Ce1 0.675 ≥ 20 and ≤ 55gal Ce1

Gas Storage Tank 0.67 EF 0.8012 > 55 and ≤ 120gal Ce1

Gas Tankless 0.82 EF 0.0019 Ce2 0.0015 ≥ 20 and ≤ 55gal Ce2

0.00178 > 55 and ≤ 120gal Ce2

Electric Water Heating 0.97 Ce1

0.96 ≥ 20 and ≤ 55gal Ce1

Heat Pump Water Heater 2.0 EF

2.057 > 55 and ≤ 120gal Ce1

0.00132 Ce2 0.0003 ≥ 20 and ≤ 55gal Ce2

0.00113 > 55 and ≤ 120gal Ce2

Table 111. Natural Gas Heating/Water Heating Path

Required Measures


Furnace Furnace AFUE 94% Furnace AFUE 80%

Water Heating

Prior 1/1/2016 Post 1/1/2016

0.67 Ce1 0.675 ≥ 20 and ≤ 55gal Ce1

Gas Storage Tank 0.67 EF 0.8012 > 55 and ≤ 120gal Ce1

Gas Tankless 0.82 EF 0.0019 Ce2 0.0015 ≥ 20 and ≤ 55gal Ce2

0.00178 > 55 and ≤ 120gal Ce2

Table 112. Electric Cooling/Water Heating Path

Required Measures

Minimum Installed EfficiencyEff

Baseline EfficiencyBase

Central Air Conditioner

15 SEER 13 SEER

12.5 EER 11.2 EER

HPWH

Prior 1/1/2016 Post 1/1/2016

2.0 EF

0.97 Ce1 0.96 ≥ 20 and ≤ 55gal Ce1

2.057 > 55 and ≤ 120gal Ce1

0.00132 Ce2 0.0003 ≥ 20 and ≤ 55gal Ce2

0.00113 > 55 and ≤ 120gal Ce2


116

Table 113. Optional: Ground Source Heat Pump

Required Measures Minimum Installed EfficiencyEff Baseline EfficiencyBase

Prior 1/1/2015 Post 1/1/2015

Geothermal Heat Pump

Tier 1 14 EER All Systems All Systems

3 COP

Tier 2 18 EER

11.2 EER 11.8 EER 4 COP

Tier 3 23 EER

2.26 COP 2.4 COP 5 COP

VARIABLE SOURCES:

Table 114. Builder Option Package Algorithm Sources


SEERBase

HSPFBase

COPBase Federal Code, 2006 and 2015, 10 CFR 430.32(c)(2) and 10 CFR 430.32(c)(3).

EERBase Calculated from SEERBase, methodology from NREL Building America Research Benchmark Definition 2009, Equation 4: EER = -0.02×SEER2+1.12 × SEER, http://www.nrel.gov/docs/fy10osti/47246.pdf

SEEREff

HSPFEff

EEREff

COPEff

Entered from application form or AHRI database.



SF Based on proper refrigerant charge, evaporator airflow, and unit sizing; Cadmus analysis.


Tout CPUC Residential Retrofit—High Impact Measure Evaluation Report Draft. Dec. 7, 2009. Pg. 76. Average temperature setpoints for two utilities.

Tmains

Averaged monthly water main temperature calculated using the methodology provided in Building America Research Benchmark Definition, updated December 2009. Pg.19-20. http://www.nrel.gov/docs/fy10osti/47246.pdf; water main temperature represents the average of TMY3 data from all Class I stations located in Des Moines.

Tfinal

Metering study found savings range from 25% to 30%. Assume 25% savings for this analysis and interpolated from graph of Figure 2. Heating contributions depend on inlet water temperature (page 3) based on: Tomlinson, J. J. Letter to Marc LaFrance, Manager, Appliance and Emerging Technology Program, U.S. Department of Energy. Subject: GFX Evaluation. Oak Ridge, TN: Oak Ridge National Laboratory, accessed 07 November 2008, http://gfxtechnology.com/Duluth-Triplex.pdf. With reference to "A Quantitative Study of the Viability of Greywater Heat Recovery (GWHR)," June 2011.

23 Averaged from various sources: NY TRM, ACEEE, OH TRM, EPA, and others.

RE Review of AHRI Directory suggests a range of recovery efficiency ratings for new Gas DHW units of 70%–87%. Average of existing units is estimated at 75%. Review of AHRI Directory suggests a range of recovery efficiency ratings for new electric DHW units of 98%.

Nppl Average household size by building type and water heater fuel type, based on the 2007 RASS.

C1, C2 DOE Standard 10 CFR 430.32(d).

GAL Entered from application form.



http://gfxtechnology.com/Duluth-Triplex.pdf


117


EFEff Entered from application form; provided range is based on ENERGY STAR-qualified list of electric heat pump water heaters (list posted 11/11/13).



118

Advanced Performance Home Package

Measure Description Advanced Performance Home.

Fuel Electric/Gas


Baseline Equipment See Table 116. Baseline Standard (IECC 2012) for REM/Rates UDRH Feature

Efficiency Qualification -Must achieve a HERS Index of 60 or lower. -Must meet IECC 2012 requirements.


-REM/Rate Model Version v13.00. -Efficiency (in SEER and/or EER). -Home Size (in square foot). -Heating Fuel (Gas, Electric, Wood, Propane, Other). -Heating Efficiency (in COP, HSPF, AFUE). -Heating Size (in MBtu/hour). -Cooling Efficiency (in SEER or EER). -Cooling Size (in MBtu/hour). -Water Heating Fuel (Gas, Electric, Wood, Propane, Other). -Water Heating Type (Conventional, Tank-less, Heat Pump Water Heater). -Water Heating Efficiency (in EF). -IECC Climate Zone (in Zone 5 or Zone 6).




Table 115. Saving calculation using REM/Rate User Defined Reference Home (UDRH) Feature

Customer Class

Energy Savings Demand Savings

kWh Therms kW Peak

Therms

Heating and Cooling Customer (Electric) 4,614.00 - 0.55 -

Heating and Cooling Customer (Electric and Gas) 523.00 88.60 0.16 0.72

Heating Only (Natural Gas) - 88.60 - 0.72

Cooling Only (Electric) 523.00 - 0.16 -

Model Assumptions:

Savings calculated using REM/Rate V13.00, using the following assumed measures on a 2,200 sq. ft., 2-story home.

R-5 board insulation over R-20 exterior walls .

Windows U-0.30.

(Gas Home) Furnace 94%AFUE.

(Gas Home) Standard Water Heater 0.67 EF.

(Electric Home) Heat Pump 17 SEER 9 HSPF.

(Electric Home) Heat Pump Water Heater EF 2.0.

Refrigerator 423 Watts/Year.

Dishwasher EF 0.66.

OPTIONAL MEASURES:



119

Electric Savings kWh—Ground Source Heat Pump

Where:


= See Table 117


= See Table 117

COPBase = Coefficient of Performance of baseline system in Btu/W-h = See Table 117 COPEff = Coefficient of Performance of new high-efficiency system,

from installed system, in Btu/W-h = See Table 117

CAPC = Capacity of cooling system in MBtu/h CAP = MBtu/h × 12

= 36* (4 to 240)

CAPH = Capacity of heating system in MBtu/h = 36* (4 to 240) EFLHC = Equivalent Full Load Hours of cooling = 484 EFLHH = Equivalent Full Load Hours of heating = 2160 3.412 = Conversion factor from Btu/h to watts = 3.412


Electric Demand Savings kW—Ground Source Heat Pump

Where:



Where:


= 74.0

TOut = Temperature of hot water exiting water heater in °F = 126.5 TMains = Temperature of ground water entering hot water heater

in °F = 56.5



D


120


3412 = Conversion factor from Btu/h to kilowatts = 3412


Where:



Where:


= 74.0


in °F = 56.5

23 = Gallons of hot water used per person per day = 23 Nppl = Number of people per home with gas hot water heating = 2.16




Where:



Table 116. Baseline Standard (IECC 2012) for REM/Rates UDRH Feature

Category Construction Type Zone 5 Zone 6

Envelope

Fenestration/Windows (U-Factor) 0.32

Skylight (U-Factor) 0.55

Ceiling (U-Factor) 0.026

Frame Wall (U-Factor) 0.057 0.048

Mass Wall (U-Factor) 0.082 0.06

Floor (U-Factor) 0.033

Basement Wall (U-Factor) 0.05

Crawl Space Wall (U-Factor) 0.055

Infiltration (Air Changes Per Hour) 3

D


121


Ducts

Duct Insulation in Attics (R-Value) 8

Duct Insulation in Other Spaces (R-Value) 6

Total Duct Leakage (cfm/100 sq. ft.) 4

Lighting Lighting (% High-Efficacy) 80%

Heating

Furnace Efficiency (AFUE) 80%

Boiler Efficiency (AFUE) 82%

Heat Pump Efficiency (HSPF) Pre-1/1/2015 7.7

Heat Pump Efficiency (HSPF) Post-1/1/2015 8.2

Cooling AC Efficiency (SEER) Pre-1/1/2015 13

AC Efficiency (SEER) Post-1/1/2015 14

Water Heating Water Heating Efficiency (EF) EF=Ce1-Ce2*gallons


Required Measures Minimum Installed efficiencyEff Baseline EfficiencyBase

Prior 1/1/2015 Post 1/1/2015


Tier 1 14 EER All Systems All Systems

3 COP

Tier 2 18 EER

11.2 EER 11.8 EER 4 COP

Tier 3 23 EER


VARIABLE SOURCES:

Table 118. Advanced Performance Home Package Algorithm Sources




EEREff

COPEff Entered from application form or AHRI database.





Tout CPUC Residential Retrofit—High-Impact Measure Evaluation Report Draft. Dec. 7, 2009. Pg. 76. Average temperature setpoints for two utilities.

Tmains

Averaged monthly water main temperature, calculated using the methodology provided in Building America Research Benchmark Definition, updated December 2009. Pg.19-20. http://www.nrel.gov/docs/fy10osti/47246.pdf; Water main temperature represents the average of TMY3 data from all Class I stations located in Des Moines.




122


Tfinal

Metering study found savings range from 25% to 30%. Assuming 25% savings for this analysis and interpolated from graph of Figure 2. Heating contributions depend on inlet water temperature (page 3) based on: Tomlinson, J. J. Letter to Marc LaFrance, Manager, Appliance and Emerging Technology Program, U.S. Department of Energy. Subject: GFX Evaluation. Oak Ridge, TN: Oak Ridge National Laboratory, accessed 07 November 2008, http://gfxtechnology.com/Duluth-Triplex.pdf. With reference to "A Quantitative Study of the Viability of Greywater Heat Recovery (GWHR)," June 2011.

23 Averaged from various sources: NY TRM, ACEEE, OH TRM, EPA, and others.

RE Review of AHRI Directory suggests a range of recovery efficiency ratings for new Gas DHW units of 70%–87%. Average of existing units is estimated at 75%. Review of AHRI Directory suggests a range of recovery efficiency ratings for new electric DHW units of 98%.

Nppl Average household size by building type and water heater fuel type, based on the 2007 RASS.

EFEff Entered from application form; provided range is based on ENERGY STAR-qualified list of electric heat pump water heaters (list posted 11/11/13).


http://gfxtechnology.com/Duluth-Triplex.pdf


123

High-Performance Home Package

Measure Description High-Performance Home.

Fuel Electric/Gas


Baseline Equipment N/A

Efficiency Qualification -Must achieve a HERS Index of 55 or lower. -Must meet IECC 2012 requirements.


-REM/Rate Model Version 13.00. -Efficiency (in SEER and/or EER). -Home size (in square foot). -Heating Fuel (Gas, Electric, Wood, Propane, Other). -Heating Efficiency (in COP, HSPF, AFUE). -Heating Size (in MBtu/hour). -Cooling Efficiency (in SEER or EER). -Cooling Size (in MBtu/hour). -Water Heating Fuel (Gas, Electric, Wood, Propane, Other). -Water Heating Type (Conventional, Tankless, Heat Pump Water Heater). -Water Heating Efficiency (in EF). -IECC Climate Zone (in Zone 5 or Zone 6).




Table 119. Saving Calculation using REM/Rate User-Defined Reference Home (UDRH) Feature

Customer Class

Energy Savings Demand Savings

kWh Therms kW Peak

Therms

Heating and Cooling Customer (Electric) 5715 - 0.58 –

Heating and Cooling Customer (Electric and Gas) 560 160 0.15 1.22

Heating Only (Natural Gas) - 160 - 1.22

Cooling Only (Electric) 560 - 0.15 –

Model Assumptions:

Savings calculated using REM/Rate V13.00, using the following assumed measures on a 2,200 sq. ft., two-story home.

R-10 board insulation over R-20 exterior walls.

Windows U-0.25.

(Gas Home) Furnace 96% AFUE.

(Gas Home) Tankless Water Heater 0.82 EF.

(Electric Home) Heat Pump 18 SEER 9.5 HSPF.

(Electric Home) Heat Pump Water Heater EF 2.0.

Refrigerator 423 Watts/Year.

Dishwasher EF 0.66.

OPTIONAL MEASURES:



124

Electric Savings kWh—Ground Source Heat Pump

Where:


= See Table 121


= See Table 121

COPBase = Coefficient of Performance of baseline system in Btu/W-h = See Table 121 COPEff = Coefficient of Performance of new high-efficiency system,

from installed system, in Btu/W-h = See Table 121

CAPC = Capacity of cooling system in MBtu/h CAP = MBtu/h × 12

= 36* (4 to 240)

CAPH = Capacity of heating system in MBtu/h = 36* (4 to 240) EFLHC = Equivalent Full Load Hours of cooling = 484 EFLHH = Equivalent Full Load Hours of heating = 2,160 3.412 = Conversion factor from Btu/h to watts = 3.412


Electric Demand Savings kW—Ground Source Heat Pump

Where:



Where:


= 74.0


in °F = 56.5



D


125


3,412 = Conversion factor from Btu/h to kilowatts = 3,412


Where: CF = Peak Coincidence Factor = 0.00009868


Where: TFinal = Temperature of final raise in water from the drainwater heat

recovery unit in °F = 74.0


in °F = 56.5

23 = Gallons of hot water used per person per day = 23 Nppl = Number of people per home with gas hot water heating = 2.16




Where:





Envelope










D


126


Ducts


Duct Insulation in other spaces (R-Value) 6

Total Duct Leakage (cfm/100 sq. ft/) 4

Lighting Lighting (% high-efficacy) 80%

Heating



Heat Pump Efficiency (HSPF) Pre-1/1/2015 7.7

Heat Pump Efficiency (HSPF) Post-1/1/2015 8.2

Cooling AC Efficiency (SEER) Pre-1/1/2015 13

AC Efficiency (SEER) Post-1/1/2015 14


Fuel Type Prior 4/16/2015 Post 4/16/2015

Electric Water Heaters Ce1=0.97 Ce2=0.00132 ≥ 20 and ≤ 55gal Ce1=0.96

> 55 and ≤ 120gal Ce1=2.057 ≥ 20 and ≤ 55gal Ce2=0.0003

> 55 and ≤ 120gal Ce2=0.00113

Gas Water Heaters Ce1=0.67 Ce2=0.0019 ≥ 20 and ≤ 55gal Ce1=0.675


> 55 and ≤ 100gal Ce2=0.0078


Required Measures Minimum Installed EfficiencyEff Baseline EfficiencyBase

Prior 1/1/2015 Post 1/1/2015


Tier 1 14 EER

All Systems All Systems 3 COP

Tier 2 18 EER

11.2 EER 11.8 EER 4 COP

Tier 3 23 EER


VARIABLE SOURCES:

Table 122. High-Performance Home Package Algorithm Sources




EEREff

COPEff Entered from application form or AHRI database.





Tout CPUC Residential Retrofit—High-Impact Measure Evaluation Report Draft. Dec. 7, 2009. Pg. 76. Average temperature setpoints for two utilities.

Tmains Averaged monthly water main temperature calculated using the methodology provided in Building America Research Benchmark Definition, updated December 2009. Pg.19-20.



127


http://www.nrel.gov/docs/fy10osti/47246.pdf; Water main temperature represents the average of TMY3 data from all Class I stations located in Des Moines.



128

Multifamily Program Table 123. Multifamily Program Overview

Eligible Customers


Customer Class Nonresidential electric Nonresidential natural gas

Customer Status Property owner or property manager with owner’s approval

Property owner or property manager with owner’s approval

Building Type Multifamily Multifamily

Building Vintage Existing and new construction Existing and new construction



129

Direct-Install: Low-Flow Showerhead

Measure Description A low-flow showerhead reduces the flow rate of the showerhead fixture, reducing hot water demand and consequently reducing energy required to heat water.

Fuel Electric/Gas

End Use Water Heat

Baseline Equipment Standard faucet without an aerator installed.

Efficiency Qualification Direct-install (1.5 GPM)





Program Multifamily Program

ANNUAL ENERGY SAVINGS ALGORITHM: Electric/Gas Savings kWh/Therms—Low-Flow Showerhead

Where: SavingsPerUnit = Average annual unit energy savings from a low-flow

showerhead in kWh/unit/year or therms/unit/year =

See Table 124

Units = Number of units ANNUAL ENERGY DEMAND ALGORITHM: Electric/Gas Demand Savings Peak kW/Therms—Low-Flow Showerhead

Where:



Table 124. Annual Savings From a Low-Flow Showerhead

SavingsPerUnit [kWh/unit/year] SavingsPerUnit [Therms/unit/year]

264 12


130


End Use Multifamily

Water Heat (Electric) 0.00009959

Water Heat (Gas) 0.00290604

VARIABLE SOURCES:





Weighted average (for different building types) of custom calculation, based on algorithm found in PA Technical Reference Manual 2013, pg. 42.




131

Direct-Install: Faucet Aerators

Measure Description

A faucet aerator can be attached to the faucet head to aerate the water stream while lowering the flow rate, without altering the perceived water pressure. This reduces hot water demand and energy required to heat water.

Fuel Electric/Gas

End Use Water Heat


Efficiency Qualification Direct-install (1.5 GPM)


Number of faucet aerators installed.




ANNUAL ENERGY SAVINGS ALGORITHM: Electric/Gas Savings kWh/Therms—Faucet Aerator

Where: SavingsPerUnit = Average annual unit energy savings from faucet aerator in

kWh/unit/year or therms/unit/year =

See Table 127

Units = Number of units ANNUAL ENERGY DEMAND ALGORITHM: Electric/Gas Demand Savings Peak kW/Therms—Faucet Aerator

Where:

Annual kWh = Annual kWh savings from faucet aerator = Calculated Annual Therms = Annual therms savings from faucet aerator = Calculated


Table 127. Annual Savings From Faucet Aerator


53 2.5


132


End Use Multifamily



VARIABLE SOURCES:





Custom calculation using algorithm found in PA Technical Reference Manual 2013, Pg. 42.




133

Direct-Install: Pre-Rinse Sprayer Valve

Measure Description Low-flow spray valves mix water and air to reduce amounts of water flowing through the spray head, which creates a fine water spray through an inserted screen in the spray head.

Fuel Electric/Gas

End Use Water Heat

Baseline Equipment Standard flow-rate, pre-rinse sprayer valve.

Efficiency Qualification Direct-install.


Water heat type (electric or gas).




ANNUAL ENERGY SAVINGS ALGORITHM: Electric/Gas Savings kWh/Therms—Pre-Rinse Sprayer Valve

Where:

PRSVSavings = Average annual unit energy savings from low-flow pre-rinse sprayer valves in kWh/unit/year or therms/unit/year

=

See Table 130

Units = Number of units ANNUAL ENERGY DEMAND ALGORITHM: Electric/Gas Demand Savings Peak kW/Therms—Pre-Rinse Sprayer Valve

Where:

Annual kWh = Annual kWh savings from pre-rinse sprayer valve = Calculated Annual Therms = Annual therms savings from pre-rinse sprayer valve = Calculated


Table 130. Annual Savings From Pre-Rinse Sprayer Valve

PRSVSavings [kWh/unit/year] PRSVSavings [Therms/unit/year]

447 20


134


End Use Multifamily



VARIABLE SOURCES:

Table 132. Pre-Rinse Sprayer Valve Algorithm Sources



Water main data for Des Moines, based on NREL methodology. Average of metered data from five sources, all referenced in: RTF UES Measures and Supporting Documentation—Commercial: Cooking Equipment—Pre-Rinse Spray Valves Version 1.1: http://rtf.nwcouncil.org/measures/measure.asp?id=100




http://rtf.nwcouncil.org/measures/measure.asp?id=100


135

Direct-Install: Programmable Thermostat


Fuel Electric/Gas

End Use HVAC

Baseline Equipment Manual thermostat without a programmable feature.

Efficiency Qualification Direct-Install


Existing HVAC equipment (heating system and cooling system).




ANNUAL ENERGY SAVINGS ALGORITHM: Electric/Natural Gas Savings kWh/Therms—Programmable Thermostat

Where:

UESElectric = Unit Electric Energy Savings by end-use equipment type = See Table 133 UESGas = Unit Gas Energy Savings by end-use equipment type = See Table 133

Unit = Number of units installed Electric/Natural Gas Demand Savings Peak kW/Therms—Programmable Thermostat

Where:

UDSCFElectric = Peak Coincidence Factor x Unit Demand Savings; central air conditioner and air source heat pumps peak demand savings by end-use equipment type

= See Table 134

UDSCFGas = Peak Coincidence Factor x Unit Demand Savings; gas equipment peak demand savings by end-use equipment type

= See Table 134

Unit = Number of units installed ALGORITHM VARIABLES:



(kWh/year)

Manufactured Existing Cooling Central Air Conditioner 66

Multifamily Existing Cooling Central Air Conditioner 45

Single-family Existing Cooling Central Air Conditioner 80

Manufactured Existing Heat Central Electric Furnace and Electric Baseboard 445

Multifamily Existing Heat Central Electric Furnace and Electric Baseboard 300


136


(kWh/year)

Multi Family Existing Cooling Central Air Conditioner 45

Multi Family Existing Heat Central Electric Furnace and Electric Baseboard 300

Multi Family Existing Heat Pump Air Source Heat Pump 264

Multi Family Existing Heat Pump - Cooling Air Source Heat Pump 45

Multi Family Existing Heat Pump - Heating Air Source Heat Pump 219

Multi Family Existing Heat Pump Ground Source Heat Pump 153

Multi Family Existing Heat Pump - Cooling Ground Source Heat Pump 26

Multi Family Existing Heat Pump - Heating Ground Source Heat Pump 127

Building Type Vintage Existing End-use Equipment UESGas

(Therms/year)

Multi Family Existing Central Heat Heat Central Furnace 12

Multi Family Existing Central Heat Heat Central Boiler 19



(kW)

Multi Family Existing Cooling Central Air Conditioner 0.0429

Multi Family Existing Heat Central Electric Furnace and Electric Baseboard 0.0000

Multi Family Existing Heat Pump Air Source Heat Pump 0.0429

Multi Family Existing Heat Pump - Cooling Air Source Heat Pump 0.0429

Multi Family Existing Heat Pump - Heating Air Source Heat Pump 0.0000

Multi Family Existing Heat Pump Ground Source Heat Pump 0.0243

Multi Family Existing Heat Pump - Cooling Ground Source Heat Pump 0.0243

Multi Family Existing Heat Pump - Heating Ground Source Heat Pump 0.0000

Building Type Vintage Existing End-use Equipment UDSCFGas

(Peak Therms)

Multi Family Existing Central Heat Heat Central Furnace 0.10993

Multi Family Existing Central Heat Heat Central Boiler 0.17093

VARIABLE SOURCES:




Calculated using average heating system consumption and the savings factor (percentage values). Cooling savings factors and heating savings factors were determined based on engineering research. Heating savings ranged from 3% to 6.2% in various TRMs and the retired ENERGY STAR Calculator. Cooling savings ranged from 2% to 9% in various TRMs and the retired ENERGY STAR Calculator. Conservative savings of 3.5% were assumed for both. Peak Demand CF values, derived from the 2011 Assessment of Potential, and were incorporated into the calculations.




137

Direct-Install: Water Heater Pipe Insulation

Measure Description Water heater pipe insulation reduces heat loss from pipes, thereby increasing efficiency and reducing the amount of required heating energy.

Fuel Electric/Gas

End Use Water Heat

Baseline Equipment Water heater pipe insulation without insulation (bare pipe; below code).

Efficiency Qualification Direct-Install






ANNUAL ENERGY SAVINGS ALGORITHM: Electric/Gas Savings kWh/Therms—Water Heater Pipe Insulation

Where: ElectricSavingsPerInstall = Annual kWh savings per 6 ft of pipe insulation = 61.18

GasSavingsPerInstall = Annual therms savings per 6 ft of pipe insulation = 2.67 ANNUAL ENERGY DEMAND ALGORITHM: Electric/Gas Demand Savings Peak kW/Therms—Water Heater Pipe Insulation

Where:




End Use Multifamily




138

VARIABLE SOURCES:



ElectricSavingsPerInstall Temperatures were averaged into 3-foot increments, and ran through the 3E Plus v4.0 to determine heat loss: http://www.pipeinsulation.org/ Runs were completed for horizontal and vertical and for each ambient air temperature. With reference to ASHRAE Fund 2009, Table 23.16 for copper heat loss tables, data from 3E Plus were weight-averaged into three savings estimates: for conditioned space (winter, summer) and unconditioned space.




http://www.pipeinsulation.org/


139

Direct-Install: Water Heater Temperature Setback

Measure Description

Thermostat setbacks for water heaters achieve behavioral changes of setting water heater temperatures to a lower set temperature of 120 degrees. End-use savings are realized when end-use set temperatures equal or exceed the water heater thermostat set temperature.

Fuel Electric/Gas

End Use Water Heat


Efficiency Qualification Direct-Install; water heater temperature turned down to 120 degrees.







Where: ElectricSavingsPerInstall = Annual kWh savings from water heater temperature

setbacks for electric storage water heaters = 81.66

GasSavingsPerInstall = Annual therms savings from water heater temperature setbacks for gas storage water heaters

= 4.63

Units = Number of units with water heater temperatures turned down

ANNUAL ENERGY DEMAND ALGORITHM: Electric/Gas Demand Savings Peak kW/Therms—Water Heater Temperature Setback

Where:




End Use Multifamily




140

VARIABLE SOURCES:



ElectricSavingsPerUnit

Savings percentage values were averaged from the following state TRMs and applied to the typical energy use of a water heater with a baseline set temperature of 126.5 degrees. -Efficiency Vermont Technical Reference User Manual, pg.405: http://www.greenmountainpower.com/upload/photos/371371TRM_User_Manual_No_2013-82-5-protected.pdf -Efficiency Maine Residential Technical Reference Manual, pg.24: http://www.efficiencymaine.com/docs/EMT-TRM_Residential_v2014-1.pdf -Massachusetts Technical Reference Manual PY 2013-2015, pg.317: http://www.ma-eeac.org/Docs/8.3_TRMs/1MATRM_2013-15%20PLAN_FINAL.pdf

GasSavingsPerUnit









141

Direct-Install: Water Heater Tank Wrap

Measure Description Water heater tank wrap reduces the heat loss from the water heater to the surroundings during standby mode, thereby increasing the efficiency and reducing the amount of required heating energy.

Fuel Electric/Gas

End Use Water Heat

Baseline Equipment Water heater without prior additional insulation

Efficiency Qualification Direct-Install; tank wrap insulation adds insulation equivalent to R-13 to the water heater






ANNUAL ENERGY SAVINGS ALGORITHM: Electric/Gas Savings kWh/Therms—Water Heater Tank Wrap

Where: ElectricSavingsPerInstall = Annual kWh savings per installation of a tank wrap = 75.49

GasSavingsPerInstall = Annual therms savings per installation of a tank wrap = 5.20 Units = Number of units installed

ANNUAL ENERGY DEMAND ALGORITHM: Electric/Gas Demand Savings Peak kW/Therms—Water Heater Tank Wrap

Where:




End Use Multifamily




142

VARIABLE SOURCES:

Table 141. Water Heater Tank Wrap Algorithm Sources


ElectricSavingsPerUnit Calculated as the difference in the energy required to recover the heat loss from the tanks; a bare uninsulated tank with R-15 is compared to a tank with insulation of R-13 in addition to the R-15 tank. GasSavingsPerUnit




143

Direct-Install: CFLs and LEDs

Measure Description Savings are captured by installing compact fluorescent lamps (CFL) and lighting emitting diodes (LED) that require less power than incandescent lamps.

Fuel Electric

End Use Lighting

Baseline Equipment Incandescent lamps

Efficiency Qualification Direct-Install; Qualified CFLs and LEDs


-Efficient lamp quantity -Hours of use or building type group




Table 142. Qualified Bulbs for Multifamily Direct-Install Program

Bulb Type Qualified Bulb

CFL 14W A-FRAME A19

CFL Flood R30 16W, 15 W /ELXR30/27K

CFL 19W CFL Standard Spiral

CFL GLOBE CFL 15W/G28

CFL 3 Way CFL 13/20/25W

CFL 32W CFL High Watt

CFL R20/14W Reflector

LED LED A-19 12W Dimmable

ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh - Efficient Lighting - CFLs and LEDs

Where: BulbSavings = Average annual unit energy savings by qualified bulb = See Table 143

Units = Number of efficient bulbs Electric Demand Savings Peak kW - Efficient Lighting - CFLs and LEDs

Where:

Annual kWh = Annual kWh savings from efficient lighting bulb(s) CF = Peak Coincidence Factor = SeeTable 144


Table 143. CFLs and LEDs Energy Savings

CFL Lamp Type CFL Energy Savings [kWh/year/lamp]


144

CFL Lamp - 14W A-FRAME A19 28.57

CFL Lamp - Flood R30 16W, 15 W /ELXR30/27K 48.27

CFL Lamp - 19W CFL Standard Spiral 33.49

CFL Lamp - GLOBE CFL 15W/G28 27.58

CFL Lamp - 3 Way CFL 13/20/25W 54.18

CFL Lamp - 32W CFL High Watt 39.40

CFL Lamp - R20/14W Reflector 28.57

LED Bulb - LED A-19 12W Dimmable 30.54


End Use Multifamily

Lighting 0.00006782

VARIABLE SOURCES:

Table 145. Efficient Lighting – CFLs and LEDs Algorithm Sources


BulbSavings

Analysis based on baseline assumptions of EISA compliant bulbs of lumen equivalent to the CFL bulb. Hours based on WECC assumptions from 2014 Be-Bright program based on WECC documentation provided to IPL on 12/24/2013 - "IA Savings Table_2013" (Updated for 2014).


Table 143. CFLs and LEDs Energy Savings





145

Direct-Install: LED Exit Sign

Measure Description LED exit signs use low wattage of power and last over 50,000 hours, while CFL exit signs can use two to four times more power and have a shorter life.

Fuel Electric

End Use Lighting

Baseline Equipment Existing exit signs with CFLs installed.

Efficiency Qualification -Existing construction only. -Must replace incandescent or CFL exit sign. -Direct-install. (Total 2.4 Wattage – 1.2 watts per side)


-Number of units. -Replacement exit sign type (CFL or Incandescent). -Installed exit sign type (LED).




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—LED Exit Sign

Where:

ExitSignSavings = Average annual unit energy savings from LED exit sign in kWh/unit/year

= 228

Units = Number of units ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—LED Exit Sign

Where:

Annual kWh = Annual kWh savings from LED exit sign = Calculated CF = Peak Coincidence Factor = See Table 146



End Use Multifamily

Lighting 0.00006793


146

VARIABLE SOURCES:

Table 147. LED Exit Sign Algorithm Sources


ExitSignSavings

Ratio of incandescent exit signs to all incandescent, fluorescent, and LED exit signs. Rensselaer Polytechnic Institute and Lighting Research Center, estimated that 90% of eligible exit signs were incandescent (2005). WI Focus on Energy, “Business Programs: Deemed Savings Manual V1.0.” Update Date: March 22, 2010. LED Exit Sign. "2010 U.S. Lighting Market Characterization" January 2012: http://apps1.eere.energy.gov/buildings/publications/pdfs/ssl/2010-lmc-final-jan-2012.pdf




http://apps1.eere.energy.gov/buildings/publications/pdfs/ssl/2010-lmc-final-jan-2012.pdf


147

Direct-Install: Advanced Power Strips

Measure Description

Savings are captured by load sensing advanced power strips (APS) also known as smart strips. Smart strips typically have one master or controller outlet, several controlled or switched outlets, and one or two uncontrolled or always-on outlets. The controlled outlets will automatically stop drawing power when the homeowner turns off the controller device. This creates energy savings by reducing the power draw from the controlled devices’ standby mode.

Fuel Electric

End Use Plug Load

Baseline Equipment Standard power strips

Efficiency Qualification Direct-Install; Qualified 4 to 8-plug advanced power strips


-Number of advanced power strips -Application for advanced power strips: home office or home entertainment system




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Advanced Power Strips

Where: APSSavings = Average annual unit energy savings by type = SeeTable 148

Units = Number of power strips Electric Demand Savings Peak kW— Advanced Power Strips

Where:



Table 148. Advanced Power Strips for Different Systems

Average [kWh/yr/APS] Home Office [kWh/yr/APS] Home Entertainment System

[kWh/yr/APS]

57.5 31.0 75.1


End Use Multifamily

Plug Load 0.00011418


148

VARIABLE SOURCES:

Table 150. Advanced Power Strips Algorithm Sources



Table 148. Advanced Power Strips for Different Systems





149

Leave Behind Energy Kit

Measure Description

Each participating student receives an Energy Kit containing easy-to-install, energy-efficient items. The kits are distributed as leave behind measures to tenants who do not partake in the direct install/audit walk through.

4-13w GE CFLs

1-20w GE CFLs

2-26w GE CFLs

1-LED nightlights

1-Waterpik low flow showerhead

2-Faucet aerators

4-Aerator adaptors

Fuel Electric/Gas

End Use Various

Baseline Equipment Various

Efficiency Qualification -Existing construction only


-Building Type




ANNUAL ENERGY SAVINGS ALGORITHM: Default kWh/Therms Savings - Multifamily Program - Energy Kit Savings

Where: MeasureElectricSavings = Default annual electric savings per kit, in kWh/year = See Table 151

MeasureGasSavings = Default annual gas savings per kit, in therms/year = See Table 151 Kitsnumber = Number of energy kits provided

Default Peak kW/Peak Therms Savings - Multifamily Program - Energy Kit Savings

Where:

kWSavings = Default peak kW savings per kit, in kWh/year = See Table 151 PeakThermsSavings = Default peak therms savings per kit, in therms/year = See Table 151

Kitsnumber = Number of energy kits provided ALGORITHM VARIABLES:


150

Table 151. Default Annual Energy Savings per Energy Kit

Measure MeasureElectricSavings

[kWh/yr] MeasureGasSavings

[Therms/yr] Peak kW

Savings [kW]

Peak Therms Savings [Peak Day Therms]

Energy Kit 189.02 4.35 0.01348 0.01263

VARIABLE SOURCES:

Table 152. Energy Kit Algorithm Sources


Kitsnumber Entered from application form.

Table 151. Default Annual Energy Savings per Energy Kit

Number of measures and fuel type depend on the installation rates of each measure. Installation rates based on EnergyWise and LivingWise programs and average of 2009, 2010, 2011, 2012, and 2013 impact reports; evaluated by Cadmus


151

Multifamily New Construction

Measure Description Multifamily New Home Construction

Fuel Electric/Gas

Enduse HVAC/Water Heat

Baseline Equipment See Table 153

Efficiency Qualification -Must achieve a HERS Index of 65 or lower -Must meet IECC 2012 requirements -See Model Assumptions


-REM/Rate Model Version(in vXX.XX) -Efficiency (in SEER and/or EER) -Home size (in square foot) -Heating Fuel (Gas, Electric, Wood, Propane, Other) -Heating Efficiency (in COP, HSPF, AFUE) -Heating Size (in MBTU/hour) -Cooling Efficiency (in SEER or EER) -Cooling Size (in MBTU/hour) -Water Heating Fuel (Gas, Electric, Wood, Propane, Other) -Water Heating Type (Conventional, Tank-less, Heat Pump Water Heater) -Water Heating Efficiency (in EF) -IECC Climate Zone (in Zone 5 or Zone 6)


Sector(s) Multifamily Residential

Program Multifamily New Construction Program

Table 153. Saving calculation using REM/Rate User Defined Reference Home (UDRH) Feature

Customer Class

Unit Savings (per Apartment Unit)

Building Savings

kWh Therms SqFt kWh Therms SqFt

Alliant Energy Fuel – Gas Heating and Cooling 281.1 55.56 940 3,373.5 666.75 11,280

Alliant Energy Fuel – Electric Heating and Cooling 1,212.9 - 940 14,554.3 - 11,280

Alliant Energy Fuel – Heating only - 55.56 940 - 666.75 11,280

Alliant Energy Fuel – Cooling only 462.8 - 940 5,554.0 - 11,280

Model Assumptions:

Savings were calculated using REM/Rate V14.3.

Two buildings types were modeled, an 8-plex with 960sqft per unit and a 16-plex at 800sqft per unit

And ERV was modeled with a thermal efficiency of 75% and provided ASHRAE 62.2 ventilation requirements

90% CFL lighting was used in all efficient cases

(Gas Home) Furnace 92%AFUE

(Gas Home) Standard Water Heater 0.67 EF

(Gas Home) Air Conditioner 14.5 SEER

(Electric Home) Heat Pump(mini-split) 18 SEER 9 HSPF

(Electric Home) Standard Electric Water Heater EF 0.95

Refrigerator 531 Watts/Year

Dishwasher EF 0.55


152




Envelope










Ducts


Duct Insulation in other spaces (R-Value) 6

Total Duct Leakage (cfm/100sq-ft) 4

Lighting Lighting (% high-efficacy) 80%

Heating



Heat Pump Efficiency (HSPF) Pre 1/1/2015 7.7

Heat Pump Efficiency (HSPF) Post 1/1/2015 8.2

Cooling AC Efficiency (SEER) Pre 1/1/2015 13

AC Efficiency (SEER) Post 1/1/2015 14


Fuel Type Prior 4/16/2015 Post 4/16/2015

Electric Water Heaters Ce1=0.97 Ce2=0.00132 ≥ 20 and ≤ 55gal Ce1=0.96


> 55 and ≤ 120gal Ce2=0.00113

Gas Water Heaters Ce1=0.67 Ce2=0.0019 ≥ 20 and ≤ 55gal Ce1=0.675


> 55 and ≤ 100gal Ce2=0.0078


153

Weatherization Program Table 155. Weatherization Program Overview

Eligible Customers


Customer Status Homeowners and renters (with landlord approval)

Building Type Single-family; duplex


Geography Iowa: IPL, MEC, or BHE service territories

Other households < 200% of the federal poverty level (FPL)

The Weatherization Program is a collaborative utility program, implemented jointly through the Iowa

Utility Association (IUA). IPL contributes program funding through the Iowa Department of Human

Rights (DHR), which in turn, supports CAP agencies to perform energy assessments and purchase and

install qualifying energy-efficiency measures in residences occupied by low-income families.

The Weatherization Program is delivered to homeowners and renters with income levels at or below

200% of the FPL. Homes occupied by the elderly, disabled, and families with children under the age of

six receive priority for weatherization assistance, as do households with high energy usage. The CAP

agencies market and deliver the program to low-income customers, and the DHR’s Division of

Community Action Agencies administers the program.

The program provides a comprehensive home energy audit and the installation of cost-effective energy-

efficiency measures, including: wall, attic, and foundation insulation; furnace replacement; refrigerator

and freezer replacement and/or removal; water heater replacement; water heater insulation wrap; hot

water pipe insulation; low-flow showerheads; faucet aerator replacement; and CFLs. Other services

provided falling outside the involvement of the utilities include: evaluation of the health and safety of

the home; exhaust ventilation; installation of smoke and carbon monoxide detectors; and some minor

home repairs. Customers receive all measures free of charge. Upon completion of weatherization work

and equipment installation, CAP agencies conduct a final home inspection to ensure quality work.

CAP agencies track and capture all savings and provided these to the IPL for program tracking. The SRM

does not summarize measure algorithms for this program.


154

EnergyWise Education Program Table 156. EnergyWise Education Program Overview

Eligible Customers


Customer Status Homeowners and renters

Building Type All


Geography IPL, MEC, or BHE service territory

Other Households > 200% of FPL

IPL, BHE, and MEC jointly implement the EnergyWise Education Program through the IUA. The adult

energy education initiative strives to increase energy awareness among low-income customers, thus

improving efficiency and reducing their energy expenditures. Local CAP agencies provide energy

education workshops for participating households. Participants receive a free kit, containing multiple

low-cost, easy-to-install, energy-efficiency measures and a survey about participants’ experience with

the program.

Eligible households, with incomes at or below 200% of the FPL, receive the program free of charge.

Participants may be renters or homeowners.

CAP agencies track participation. The Cadmus Group evaluates the energy savings for this program

annually and provides these to the IPL for program tracking. The SRM does not summarize measure

algorithms for this program.


155

Low-Income Multifamily and Institutional Efficiency

Improvements Program Table 157. Low-Income MIEI Program Overview

Eligible Customers

Customer Class Residential and nonresidential electric and natural gas where IPL provides the primary heating fuel

Customer Status Property owner

Building Type Multifamily; Institutional



Other Building meets Section 8 housing qualifications

Through its Multifamily and Institutional Efficiency Improvements (MIEI) Program, IPL provides funding

to support energy-efficiency improvements in eligible multifamily properties and institutional facilities

where low-income customers reside. MIEI includes two components:

1. A free assessment with direct-installation of low-cost, energy-efficiency measures for tenant

units and common areas; and

2. Enhanced prescriptive rebates for multifamily buildings that meet Section 81 housing

qualifications.

The program offers a comprehensive energy assessment and direct-install measures at no cost to

customers. IPL determines incentives on a per-measure basis; however, the total utility incentive for

each project is targeted to be 40% of the total cost of upgrades.

IPL administers and implements the program with support from a program contractor. IPL also

coordinates this program with MEC, BHE, and the IUA. The program contractor tracks and captures all

savings and provides these for IPL’s program tracking. The SRM does not summarize measure algorithms

for this program.

1 Defined as housing with four or more units, where a minimum of 60% of residents meet federal

qualifications for receiving low-income assistance.


156

Home Energy Savers Program Table 158. Home Energy Savers Program Overview

Eligible Customers


Customer Status Homeowners

Building Type Single-family



Other IPL must provide heating fuel; Limited income customers

Initially launched in 2010 as a pilot in two communities, and called the Targeted Residential Energy

Efficiency Opportunity, the Home Energy Savers (HES) Program is IPL’s newest offering to support

limited-income customers. By raising the program income eligibility threshold, IPL extends

weatherization services to limited-income customers who receive their heating fuel from IPL. The

program strives to encourage energy-efficient practices in the homes of limited-income customers,

defined as households with incomes that 50% to 100% above the current limit associated with federal

weatherization assistance guidelines. CAP agencies market and deliver HES to these limited-income

customers.

IPL pays the full cost for audits and direct-installation measures, and covers 90% of the installed cost of

energy-efficiency measures recommended by CAP agency energy auditors. Eligible measures include:

wall, attic, and foundation insulation; furnace replacement; refrigerator and freezer replacement and/or

removal; water heater replacement; water heater insulation wrap; pipe insulation; low-flow

showerheads; faucet aerator replacement; and CFLs. CAP agencies may also evaluate the health and

safety of a home,2 install smoke and carbon monoxide detectors, and perform minor home repairs.

Upon completion of weatherization work and equipment installation, the CAP agency conducts a final

home inspection to ensure quality work.

CAP agencies track and capture all savings, and provide these to the IPL for program tracking. The SRM

does not summarize measure algorithms for this program.

2 Health and safety services are supported with non-utility funds.


157

Nonresidential Prescriptive Rebates Program Table 159. Nonresidential Prescriptive Rebates Program Overview

Eligible Customers




Building Type Nonresidential Nonresidential




158

Appliance: Commercial Clothes Washer

Measure Description ENERGY STAR Commercial Clothes Washer with a modified energy factor (MEF)/water factor (WF) of 2.2/4.5.

Fuel Electric/Gas

End Use Commercial Laundry

Baseline Equipment Commercial clothes washer.

Efficiency Qualification -ENERGY STAR-rated. -Minimum ENERGY STAR MEF and WF values used to determine savings: MEF ≥ 2.2 ; WF ≤ 4.5.


-Water heater fuel type. -Dryer fuel type. -MEF: modified energy factor. -WF: water factor (gallons per cycle per cubic foot).

Market Opportunity Replacement on Burnout; Retrofit

Sector(s) Nonresidential

Program Nonresidential Prescriptive Rebates Program


Electric Savings kWh—Commercial Clothes Washer

Where: Saving/Unit = Per unit electric savings based on equipment type = See Table 160


Natural Gas Savings Therms—Commercial Clothes Washer

Where: Savings/Unit = Per unit natural gas savings based on equipment type = See Table 160

Unit = Number of rebated units ANNUAL ENERGY DEMAND ALGORITHM:

Electric Demand Savings Peak kW—Commercial Clothes Washer

Where: Annual kWh = Annual electric savings from commercial clothes washer

replacement = Calculated


Natural Gas Demand Savings Peak Therms/hr—Commercial Clothes Washer


159

Where: Annual Therms = Annual gas savings from commercial clothes washer



Table 160. Electric Savings of Commercial Clothes Washer

Water Heater/Dryer Fuel Type Savings/Unit (kWh) Savings/Unit (Therms)

Electric Water Heater & Electric Dryer 1,045 0

Electric Water Heater & Gas Dryer 804 8

Gas Water Heater & Gas Dryer 161 37

Gas Water Heater & Electric Dryer 402 29

Gas Water Heater & No Dryer 161 29

Electric Water Heater & No Dryer 804 0


End Use



Lodging, Hospital,

and Multifamily



Commercial



All Commercial

Water Heat (Electric)

0.00013748 0.00013512 0.00024250 0.00022084 0.00013081 0.00013081 0.00020626

Water Heat (Gas)

0.00068510 0.00176813 0.00068952 0.00057778 - - 0.00068206

VARIABLE SOURCES:

Table 162. Commercial Clothes Washer Algorithm Sources




160

Appliance: Commercial Dishwasher

Measure Description

-ENERGY STAR high-temperature commercial dishwashers, with a minimal idle rate, amount of water consumption per rack of loaded dishes, and more efficient operations. -ENERGY STAR, low-temperature commercial dishwashers use chemicals, combined with low temperatures, to save energy.

Fuel Electric/Gas

End Use Commercial Dishwasher

Baseline Equipment Commercial dishwasher.

Efficiency Qualification -ENERGY STAR-rated. -Specific qualifications found in Table 163.


-Water heater fuel type (electric or gas). -Dishwasher temperature (low or high temperature). -Dishwasher type (under counter; stationary single-tank door; single-tank conveyor; multi tank conveyor; pot, pan, and utensil). -Booster heater fuel type (electric or gas).




Table 163. Specifications for Efficiency Qualification

Machine Type High Temp Efficiency Requirements Low Temp Efficiency Requirements

Idle Energy Rate Water

Consumption Idle Energy Rate

Water Consumption

Under Counter ≤ 0.50 kW ≤ 0.86 GPR ≤ 0.50 kW ≤ 1.19 GPR

Stationary Single Tank Door ≤ 0.70 kW ≤ 0.89 GPR ≤ 0.60 kW ≤ 1.18 GPR

Pot, Pan, and Utensil ≤ 1.20 kW ≤ 0.58 GPSF ≤ 1.00 kW ≤ 0.58 GPSF

Single Tank Conveyor ≤ 1.50 kW ≤ 0.70 GPR ≤ 1.50 kW ≤ 0.79 GPR

Multiple Tank Conveyor ≤ 2.25 kW ≤ 0.54 GPR ≤ 2.00 kW ≤ 0.54 GPR


Electric Savings kWh—Commercial Dishwasher

Where:

Savings/Unit = Per unit savings based on equipment type and temperature

= See Table 164


Gas Savings Therms—Commercial Dishwasher

Where:

Savings/Unit = Per unit savings based on equipment type and temperature

= See Table 165

Unit = Number of rebated units ANNUAL ENERGY DEMAND ALGORITHM:


161

Electric Demand Savings Peak kW—Commercial Dishwasher

Where: Annual kWh = Annual kWh savings from commercial dishwasher


CF = Peak Coincidence Factor = See Table 166 Gas Demand Savings Peak Therms/hr—Commercial Dishwasher

Where: Annual Therms = Annual Therms savings from commercial dishwasher



Table 164. Electric Savings of Commercial Dishwasher

Machine Type

Savings/Unit

Electric Water Heat & Electric Booster (kWh)

Electric Water Heat & Gas Booster (kWh)

Gas Water Heat & Electric Booster (kWh)

Low Temperature

Under Counter 2,540 2,540 NA

Stationary Single-Tank Door 16,153 16,153 NA

Single-Tank Conveyor 13,626 13,626 NA

Multi-Tank Conveyor 18,811 18,811 NA

High Temperature

Under Counter 3,171 2,553 2,089

Stationary Single-Tank Door 11,863 7,850 4,840

Single-Tank Conveyor 9,212 6,775 4,948

Multi-Tank Conveyor 27,408 18,163 11,230

Pot, Pan, and Utensil 3,311 2,107 1,204

Table 165. Gas Savings of Commercial Dishwasher

Machine Type

Savings/Unit

Gas Water Heat & Gas Booster (Therms)

Electric Water Heat & Gas Booster (Therms)

Gas Water Heat & Electric Booster (Therms)

Low Temperature

Under Counter 106 NA 106

Stationary Single-Tank Door 675 NA 675

Single-Tank Conveyor 545 NA 545

Multi-Tank Conveyor 786 NA 786

High Temperature

Under Counter 71 26 45

Stationary Single-Tank Door 461 168 294

Single-Tank Conveyor 280 102 178

Multi-Tank Conveyor 1,063 386 676


162

Machine Type

Savings/Unit

Gas Water Heat & Gas Booster (Therms)

Electric Water Heat & Gas Booster (Therms)

Gas Water Heat & Electric Booster (Therms)

Pot, Pan, and Utensil 138 50 88


End Use



Lodging, Hospital,

and Multifamily

Health Clinic,

Church, Warehouse,

Other Commercial



All Commercial


0.00013748 0.00013512 0.00024250 0.00022084 0.00013081 0.00013081 0.00020626

Water Heat (Gas)

0.00068510 0.00176813 0.00068952 0.00057778 - - 0.00068206

VARIABLE SOURCES:

Table 167. Commercial Dishwasher Algorithm Sources


Table 163. Specifications for Efficiency Qualification

ENERGY STAR specifications, effective February 1, 2013: http://www.energystar.gov/index.cfm?c=comm_dishwashers.pr_crit_comm_dishwashers

Table 164. Electric Savings of Commercial Dishwasher

ENERGY STAR Calculator for Commercial Dishwashers, downloaded 9/9/2013: http://www.energystar.gov/index.cfm?fuseaction=find_a_product.showProductGroup&pgw_code=COH

Table 165. Gas Savings of Commercial Dishwasher



http://www.energystar.gov/index.cfm?c=comm_dishwashers.pr_crit_comm_dishwasherS

http://www.energystar.gov/index.cfm?c=comm_dishwashers.pr_crit_comm_dishwasherS

http://www.energystar.gov/index.cfm?fuseaction=find_a_product.showProductGroup&pgw_code=COH

http://www.energystar.gov/index.cfm?fuseaction=find_a_product.showProductGroup&pgw_code=COH


163

Cooking: Broiler

Measure Description As infrared waves move heat faster and carry a higher intensity of heat than non-infrared rays, heat targets the foot more effectively. Thus, infrared broilers have higher cooking efficiencies than standard broilers.

Fuel Gas

End Use Cooking

Baseline Equipment A standard broiler.

Efficiency Qualification Infrared broiler.


-Equipment size (in MBtuh). -Equipment type (charbroiler/upright broiler/salamander).




ANNUAL ENERGY SAVINGS ALGORITHM: Natural Gas Savings Therms—Broiler

Where: CAP = Rated input energy rate of broiler, in Mbtuh = (8 to 240)

Savings = Per unit gas savings based on broiler configuration, in therms/MBtuh input

= See Table 168

Unit = Number of rebated units ANNUAL ENERGY DEMAND ALGORITHM: Natural Gas Demand Savings Peak Therms—Broiler

Where: Annual Therms = Annual therms savings from infrared broiler = Calculated


Table 168. Deemed Savings for Various Broiler Configurations

Type Savings [therms/MBtu input]

Underfired Charbroiler 8.40

Overfired Upright Broiler 6.12

Salamander Broiler 9.36


164


End Use



Lodging, Hospital,

and Multifamily

Health Clinic,

Church, Warehouse, and Other

Commercial



All Commercial

Cooking 0.00307372 0.00293772 0.00345493 0.00052694 - - 0.00259005

VARIABLE SOURCES:

Table 170. Broiler Algorithm Sources


CAP Entered from application form.


Table 168. Deemed Savings for Various Broiler Configurations

Inferred savings from Fishnick Broiler Technical Assessment, Foodservice Technology Center, and engineering assumptions.




165

Cooking: Convection Oven

Measure Description Commercial ENERGY STAR convection ovens have higher cooking energy efficiencies and lower idle energy rates than standard convection ovens.

Fuel Electric/Gas

End Use Cooking

Baseline Equipment A standard convection oven.


-Half-size Electric Convection Oven Energy Qualification: ≥70% cooking energy efficiency, <=1.1 kW idle energy rate. -Full-size Electric Convection Oven Energy Qualification: ≥70% cooking energy efficiency, <=1.6 kW idle energy rate. -Gas Convection Oven Energy Qualification: ≥ 44% cooking energy efficiency, Idle Energy Rate <= 13,000 Btu/hr.


-Convection oven fuel type (electric/gas). -Convection oven configuration (half-size/full-size).




ANNUAL ENERGY SAVINGS ALGORITHM: Electric/Gas Savings kWh/Therms—ENERGY STAR Convection Oven

Where:

SavingsPerUnit = Per unit annual electric/gas savings from ENERGY STAR convection oven

= See Table 171

Unit = Number of rebated units ANNUAL ENERGY DEMAND ALGORITHM: Electric/Gas Demand Savings Peak kW/Therms—ENERGY STAR Convection Oven

Where:

Annual kWh = Annual kWh savings from ENERGY STAR 165convection oven = Calculated Annual Therms = Annual therms savings from ENERGY STAR convection oven = Calculated


Table 171. Deemed Savings for ENERGY STAR Convection Ovens

Type Fuel Type Savings [therms/MBtu input]

Full-Size Electric 1879

Gas 305.9

Half-Size Electric 1988


166


End Use



Lodging, Hospital,

and Multifamily

Health Clinic,


Commercial



All Commercial

Cooking (Gas) 0.00307372 0.00293772 0.00345493 0.00052694 – – 0.00259005

Cooking (Electric) 0.00017323 0.00012932 0.00019243 0.00012416 0.00013081 0.00013081 0.00016867

VARIABLE SOURCES:

Table 173. Convection Oven Algorithm Sources



Table 171. Deemed Savings for ENERGY STAR Convection Ovens

ENERGY STAR Commercial Kitchen Equipment Calculator: http://www.energystar.gov/ia/business/bulk_purchasing/bpsavings_calc/commercial_kitchen_equipment_calculator.xlsx



http://www.energystar.gov/ia/business/bulk_purchasing/bpsavings_calc/commercial_kitchen_equipment_calculator.xlsx



167

Cooking: Conveyor Oven

Measure Description

Conveyor ovens (high-efficiency) operate at 42% efficiency, compared to a standard conveyor oven at 20% efficiency. Ovens can use different heating processes: infrared, natural convection, forced convection, or a combination of heating processes.

Fuel Gas

End Use Cooking

Baseline Equipment A standard conveyor oven at 20% efficiency.


-Gas Conveyor Energy Qualification: Minimum cooking efficiency of 42% under heavy load, idle rate (Btu/hr) is < 57,000. -Qualifying large gas conveyor oven models (≥ 25" wide) must meet or exceed baking energy efficiency of ≥42% and an idle energy rate ≤ 57,000 Btu/h, utilizing ASTM Standard F1817. -Qualifying small gas conveyor oven models (< 25" wide) must meet or exceed baking energy efficiency of ≥42% and an idle energy rate ≤ 29,000 Btu/h, utilizing ASTM Standard F1817.


-Idle energy rate in Btu per hour. -Cooking efficiency. -Large or small model.




ANNUAL ENERGY SAVINGS ALGORITHM: Natural Gas Savings Therms—Conveyor Oven

Where: SavingsPerUnit = Per unit annual gas savings from efficient conveyor oven, in

therms/year/unit = 790

Unit = Number of rebated units ANNUAL ENERGY DEMAND ALGORITHM: Natural Gas Demand Savings Peak Therms—Conveyor Oven

Where: Annual Therms = Annual therms savings from efficient conveyor oven = Calculated



168



End Use



Lodging, Hospital,

and Multifamily

Health Clinic,


Commercial



All Commercial

Cooking 0.00307372 0.00293772 0.00345493 0.00052694 – – 0.00259005

VARIABLE SOURCES:

Table 175. Conveyor Oven Algorithm Sources


SavingsPerUnit Custom analysis based on Food Service Technology Center Gas Conveyor Oven Life-Cycle Cost Calculator: http://www.fishnick.com/saveenergy/tools/calculators/gconvovencalc.php




http://www.fishnick.com/saveenergy/tools/calculators/gconvovencalc.php


169

Cooking: Fryer

Measure Description Commercial ENERGY STAR gas fryers run up to 35% more energy efficiently than standard models.

Fuel Gas

End Use Cooking

Baseline Equipment A standard fryer.


-Standard Open Deep-Fat Gas Fryers: ENERGY STAR Rated Minimum cooking efficiency of 50% under heavy load, maximum idle energy rate of 9,000 Btu/hr. -Large Vat Open Deep-Fat Gas Fryers: ENERGY STAR Rated Minimum cooking efficiency of 50% under heavy load, maximum idle energy rate of 12,000 Btu/hr. -Split Vat Fryer: A standard or large vat fryer with an internal wall that separates the vat into two equal sides. Must meet the qualifications above for standard and large vats.


Equipment size.




ANNUAL ENERGY SAVINGS ALGORITHM: Natural Gas Savings Therms—ENERGY STAR Fryer

Where: SavingsPerUnit = Annual per unit savings from ENERGY STAR gas fryer,

depending on equipment size = See Table 176

Unit = Number of rebated units ANNUAL ENERGY DEMAND ALGORITHM: Natural Gas Demand Savings Peak Therms—ENERGY STAR Fryer

Where: Annual Therms = Annual gas savings from ENERGY STAR gas fryer = Calculated


Table 176. Natural Gas Savings for ENERGY STAR Fryer

Type Savings [therms/MBtu input]

Gas—Standard 505

Gas—Large Vat 428

Gas—Split Vat (Average) 466


170


End Use



Lodging, Hospital,

and Multifamily

Health Clinic,


Commercial



All Commercial

Cooking 0.00307372 0.00293772 0.00345493 0.00052694 - - 0.00259005

VARIABLE SOURCES:

Table 178. Fryer Algorithm Sources



Table 176. Natural Gas Savings for ENERGY STAR Fryer

ENERGY STAR Commercial Kitchen Equipment Calculator; Version—Calculator updated on May 2013: http://www.energystar.gov/ia/business/bulk_purchasing/bpsavings_calc/commercial_kitchen_equipment_calculator.xlsx






171

Cooking: Griddle

Measure Description

Commercial griddles earning the ENERGY STAR label operate about 10% more energy efficiently than standard models due to better controls, higher cooking efficiencies, and lower idle energy rates. ENERGY STAR-qualified griddles also include thermostatically controlled, gas and electric, single- and double-sided models to limit unnecessary run times.

Fuel Gas

End Use Cooking

Baseline Equipment A standard griddle.

Efficiency Qualification -ENERGY STAR-rated. -Minimum cooking efficiency of 38% under heavy load.


Equipment size.




ANNUAL ENERGY SAVINGS ALGORITHM: Natural Gas Savings Therms—ENERGY STAR Griddle

Where: SavingsPerUnit = Annual per unit savings from ENERGY STAR griddle = 118.7

Unit = Number of rebated units ANNUAL ENERGY DEMAND ALGORITHM: Natural Gas Demand Savings Peak Therms—ENERGY STAR Griddle

Where: Annual Therms = Annual gas savings from ENERGY STAR griddle = Calculated



End Use

Grocery, Convenienc

e Store, and

Restaurant

Lodging, Hospital,

and Multifamily

Health Clinic,


Commercial



All Commercial

Cooking 0.00307372 0.00293772 0.00345493 0.00052694 – – 0.00259005


172

VARIABLE SOURCES:

Table 180. Griddle Algorithm Sources


SavingsPerUnit

Weighted average of annual therms savings for different sizes of ENERGY STAR griddles; values obtained from ENERGY STAR Commercial Kitchen Equipment Calculator: http://www.energystar.gov/ia/business/bulk_purchasing/bpsavings_calc/commercial_kitchen_equipment_calculator.xlsx







173

Cooking: Rotating Rack Oven

Measure Description

As infrared waves move heat more quickly and carry a higher intensity of heat than non-infrared rays, the heat targets food more efficiently. Thus, infrared rotating rack ovens operate at higher cooking efficiencies than standard rotating rack ovens.

Fuel Gas

End Use Cooking

Baseline Equipment A standard rotating rack oven.

Efficiency Qualification Infrared rotating rack oven.


Equipment type (single or double rack).




ANNUAL ENERGY SAVINGS ALGORITHM: Natural Gas Savings Therms—Rotating Rack Oven

Where: SavingsPerUnit = Annual per unit gas savings for efficient rotating rack oven = See Table 181

Unit = Number of rebated units ANNUAL ENERGY DEMAND ALGORITHM: Natural Gas Demand Savings Peak Therms—Rotating Rack Oven

Where: Annual Therms = Annual gas savings from efficient rotating rack oven = Calculated


Table 181. Gas Savings for Efficient Rotating Rack Oven

Type Savings [therms/yr]

Single-Rack 916

Double-Rack 1,854

Type Unknown 1,385


End Use



Lodging, Hospital,

and Multifamily

Health Clinic,


Commercial



All Commercial

Cooking 0.00307372 0.00293772 0.00345493 0.00052694 – – 0.00259005


174

VARIABLE SOURCES:

Table 183. Rotating Rack Oven Algorithm Sources



Table 181. Gas Savings for Efficient Rotating Rack Oven

Values for single and double-rack ovens inferred from the Fishnick Gas Rack Oven Life-Cycle Cost Calculator; value for unknown oven type assumed an average between single-rack and double-rack types.




175

Cooking: Rotisserie Oven

Measure Description

As infrared waves move heat more quickly and carry a higher intensity of heat than non-infrared rays, the heat targets food more efficiently. Thus, infrared rotisserie ovens operate at higher cooking efficiencies than standard rotisserie ovens.

Fuel Gas

End Use Cooking

Baseline Equipment Standard rotisserie ovens.

Efficiency Qualification Rotisserie ovens with infrared burners.


-Number of units. -Rated energy input of rotisserie oven in kBtu/hr.




ANNUAL ENERGY SAVINGS ALGORITHM: Natural Gas Savings Therms—Rotisserie Oven

Where:

REI = Rated energy input of efficient oven, in Btu/hr = (20,000 to 120,000) SavingsRotisserieOven = Deemed savings for efficient oven, per kBtu/hr input = 4.35

Unit = Number of rebated units ANNUAL ENERGY DEMAND ALGORITHM: Natural Gas Demand Savings Peak Therms—Rotisserie Oven

Where: Annual Therms = Annual therms savings from efficient Rotisserie Oven = Calculated



End Use



Lodging, Hospital,

and Multifamily

Health Clinic,


Commercial



All Commercial

Cooking 0.00307372 0.00293772 0.00345493 0.00052694 – – 0.00259005


176

VARIABLE SOURCES:

Table 185. Rotisserie Oven Algorithm Sources


REI Entered from application form or obtained from model number specification sheet.

SavingsRotisserieOven Source: Inferred calculation from Fishnick Oven Technical Assessment, Table 7-2: http://www.fishnick.com/equipment/techassessment/7_ovens.pdf




http://www.fishnick.com/equipment/techassessment/7_ovens.pdf


177

Cooking: Steam Cooker

Measure Description Commercial ENERGY STAR steam cookers operate at higher cooking efficiencies and lower idle energy rates than standard steam cookers.

Fuel Electric/Gas

End Use Cooking

Baseline Equipment A standard steam cooker.


-Electric Steam Cooker Energy Qualification (3-pan): ENERGY STAR Rated (≥50% cooking efficiency, idle energy rate < 400 watts). -Electric Steam Cooker Energy Qualification (4-pan): ENERGY STAR Rated (≥50% cooking efficiency, idle energy rate < 530 watts). -Electric Steam Cooker Energy Qualification (5-pan): ENERGY STAR Rated (≥50% cooking efficiency, idle energy rate < 670 watts). -Electric Steam Cooker Energy Qualification (6-pan or larger): ENERGY STAR (≥50% cooking efficiency, idle energy rate < 800 watts). -Gas Steam Cooker Energy Qualification (3-pan): ENERGY STAR Rated (≥38%cooking energy efficiency, idle rate < 6,250 Btu/hr). -Gas Steam Cooker Energy Qualification (4-pan): ENERGY STAR Rated (≥38%cooking energy efficiency, idle rate < 8,350 Btu/hr). -Gas Steam Cooker Energy Qualification (5-pan): ENERGY STAR Rated (≥38%cooking energy efficiency, idle rate < 10,400 Btu/hr). -Gas Steam Cooker Energy Qualification (6-pan or larger): ENERGY STAR (Rated ≥38%cooking energy efficiency, idle rate < 12,500 Btu/hr).


Equipment size (number of pans).




ANNUAL ENERGY SAVINGS ALGORITHM: Electric/Gas Savings kWh/Therms—ENERGY STAR Steam Cooker

Where: SavingsPerUnit = Annual per unit electric/gas savings for ENERGY STAR steam

cooker based on number of pans = See Table 186


ANNUAL ENERGY DEMAND ALGORITHM: Electric/Gas Demand Savings Peak kW/Therms—ENERGY STAR Steam Cooker

Where:

Annual kWh Annual electric savings from ENERGY STAR steam cooker = Calculated Annual Therms = Annual gas savings from ENERGY STAR steam cooker = Calculated



178


Table 186. Energy Savings for ENERGY STAR Steam Cookers

Size (Number of Pans) kWh Savings [kWh/yr] Therms Savings [therms/yr]

3 3,758 145

4 4,818 172

5 5,879 199

6 6,940 225

10 11,185 332

Average 5,879 225


End Use






Commercial



All Commercial

Cooking (Gas) 0.00307372 0.00293772 0.00345493 0.00052694 – – 0.00259005

Cooking (Electric) 0.00017323 0.00012932 0.00019243 0.00012416 0.00013081 0.00013081 0.00016867

VARIABLE SOURCES:

Table 188. Steam Cookers Algorithm Sources



Table 186. Energy Savings for ENERGY STAR Steam Cookers

ENERGY STAR Commercial Kitchen Equipment Calculator: http://www.energystar.gov/ia/business/bulk_purchasing/bpsavings_calc/commercial_kitchen_equipment_calculator.xlsx






179

Hotel: Hotel Key Card Activated Systems

Measure Description

This key card system controls room HVAC and lighting during non-occupied periods. Occupancy is determined by the presence of a key card and/or additional sensors. The central system sets heating and cooling to a minimum, and turns off lighting when the key card is removed. Once the guest returns and inserts the key card, the guest has full control of the room systems. Savings are captured by reduced HVAC and lighting consumption during non-occupied periods.

Fuel Electric/Gas

End Use Controls: HVAC/lighting

Baseline Equipment Hotel room with all-manual controls system (without key card controls).

Efficiency Qualification The key card activated system must reduce the electricity consumption by HVAC use and optionally reduce electricity consumption by lighting use in the room.


Number of rooms with key card activated system in the hotel.




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Hotel Key Card Activated Systems

Where:

kWhSavings = Annual per room kWh savings from key card activated system = Calculated HVACSavings = Annual per room HVAC kWh savings from key card activated

system = 158

LightingSavings = Annual per room lighting kWh savings from key card activated system

= 62 or 0*

NumRooms = Number of rooms with key card activated system in the hotel *Use 0 for LightingSavings if lighting is not controlled by key card activated system. ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Hotel Key Card Activated Systems

Where:

CFHVAC = HVAC Peak Coincidence Factor = See Table 189 CFLighting = Lighting Peak Coincidence Factor = See Table 189


180



End Use






Commercial



All Commercial

HVAC (Cooling Direct Expansion [DX])

0.00035993 0.00072962 0.00066279 0.00051390 0.00013081 0.00013081 0.00053998

Lighting 0.00015799 0.00014871 0.00023078 0.00019620 0.00013081 0.00013081 0.00020796

VARIABLE SOURCES:

Table 190. Hotel Key Card Activated System Algorithm Sources


HVACSavings Results of savings value obtained from “2013 California Building Energy Efficiency Standards, CASE report: Guest Room Occupancy Controls, 2011. Page 21”; weather-adjusted to be appropriate for Iowa (using Des Moines, Iowa weather data).

LightingSavings 2013 California Building Energy Efficiency Standards, CASE report: Guest Room Occupancy Controls, 2011. Page 23.

NumRooms Entered from application form.




181

HVAC: Air Conditioner Tune-Up

Measure Description Maintenance includes changing filters and cleaning coils to maintain overall performance and efficiency of the unit.

Fuel Electric

End Use HVAC

Baseline Equipment Existing commercial HVAC systems that require tune-ups.

Efficiency Qualification Proper maintenance and tune-up.


Equipment size (in MBtuh or tons).




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Air Conditioner <65 MBtuh—Tune-up

Where:

= Seasonal Energy Efficiency Ratio of baseline efficiency system = 13 = Equivalent Full Load Hours of cooling = See Table 191 = Capacity of cooling System in MBtuh (Tons x 12) = (4 to 65) = Cooling savings from tune-up = 7.50%

Units = Number of rebated units Electric Savings kWh—Air Conditioner ≥65 MBtuh—Tune-up

Where: = Energy Efficiency Ratio of baseline efficiency system = See Table 192 = Equivalent Full Load Hours of cooling = See Table 191 = Capacity of cooling System in MBtuh (Tons x 12) = (65 to 480) = Cooling savings from tune-up = 7.50%

Units = Number of rebated units ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Air Conditioner <65 MBtuh—Tune-up

Where: = Energy Efficiency Ratio of baseline efficiency system = 11.2 = Equivalent Full Load Hours of cooling = See Table 191 = Capacity of cooling System in MBtuh (Tons x 12) = (4 to 65)


182

= Cooling savings from tune-up = 7.50% CF = Peak Coincidence Factor = See Table 193

Units = Number of rebated units Electric Demand Savings Peak kW—Air Conditioner ≥ 65 MBtuh—Tune-up

Where:

= Energy Efficiency Ratio of baseline efficiency system = 11.2 = Equivalent Full Load Hours of cooling = See Table 191 = Capacity of cooling System in MBtuh (Tons x 12) = (4 to 65) = Cooling savings from tune-up = 7.50%

CF = Peak Coincidence Factor = See Table 193 Units = Number of rebated units



End Use



Lodging, Hospital,

and Multifamily



Commercial


Retail Industrial Agriculture All Commercial

Cooling DX 1,022 807 593 851 791 791 791

Table 192. Energy Savings: Energy Efficiency Ratio of Baseline Efficiency System

Size (MBtuh) EERBase

≥65 and <135 11.2

≥135 and <240 11.0

≥240 and <760 10

≥760 9.7


End Use



Lodging, Hospital,

and Multifamily



Commercial



Cooling DX 0.00035993 0.00072962 0.00066279 0.00051390 0.00013081 0.00013081 0.00053998


183

VARIABLE SOURCES:

Table 194. Air Conditioner Tune-up Algorithm Sources


SEERBase Code of Federal Regulations, 10 CFR 430.32(c)(1).



CAPC Entered from application form .

SFC

-Energy Savings Impact of Improving the Installation of Residential Central Air Conditioners, 2005. -Cadmus Report: Bin Analysis, Energy Savings Impact of Improving the Installation of Residential Central Air Conditioners, 2005.

Table 192. Energy Savings: Energy Efficiency Ratio of Baseline Efficiency System

Code of Federal Regulations, 10 CFR 430.32(c)(2); IECC 2009 Table 503.2.3(1).

Demand Savings: EERBase

Calculated from SEERBase (SEER 13—Federal Code, 2006 and 2015, 10 CFR 430.32(c)(2) and 10 CFR 430.32(c)(3)); methodology from NREL Building America Research Benchmark Definition 2009, Equation 4: EER = -0.02×SEER2+1.12 × SEER: http://www.nrel.gov/docs/fy10osti/47246.pdf





184

HVAC: Air Conditioning

Measure Description

Qualified central air conditioners have higher SEER and EER ratings, making them over 15% more efficient than conventional models. The Consortium for Energy Efficiency (CEE) specification provides consensus definitions of efficient performance for use as a basis for CEE member's commercial air conditioning and heat pump programs.

Fuel Electric

End Use HVAC

Baseline Equipment Central air conditioner system compliant with federal standard.


-Air Conditioner <65 MBtuh: Minimum SEER efficiency of 14.5. -Air Conditioner ≥65 and <135 MBtuh: Minimum EER efficiency of 11.5. -Air Conditioner ≥135 and <240 MBtuh: Minimum EER efficiency of 11.2. -Air Conditioner ≥240 and <760 MBtuh: Minimum EER efficiency of 10.0. -Air Conditioner ≥760 MBtuh: Minimum EER efficiency of 9.7. -Must be listed in AHRI.


-Equipment size (in MBtuh or tons). -Efficiency (in SEER and/or EER).





Electric Savings kWh—Air Conditioner <65 MBtuh—SEER Rated

Where: SEERBase = Seasonal Energy Efficiency Ratio Federal Baseline = 13

SEEREff = Seasonal Energy Efficiency Ratio of new high-efficiency system = (14.5 to 30) = Capacity of cooling system in MBtuh (Tons x 12) = (4 to 65) EFLHC = Equivalent full load hours of cooling = See Table 195

Unit = Number of rebated units Electric Savings kWh—Air Conditioner ≥65 MBtuh—EER Rated

Where: = Energy Efficiency Ratio of baseline efficiency system = See Table 196 = Energy Efficiency Ratio of a new high-efficiency system = (9.9 to 20)

See Table 196 = Capacity of cooling System in MBtuh (Tons x 12) = (65 to 1,000) EFLHC = Equivalent Full Load Hours of cooling = See Table 195 Units = Number of rebated units


185

ANNUAL ENERGY DEMAND ALGORITHM:

Electric Demand Savings Peak kW—Air Conditioner <65 MBtuh—EER Rated &

Electric Demand Savings Peak kW—Air Conditioner ≥65 MBtuh—EER Rated

Where: EERBase = Energy Efficiency Ratio baseline = 11.2

EEREff = Energy Efficiency Ratio of new high-efficiency system = (12 to 20) CAP = Capacity of cooling system in MBtuh (Tons x 12) = (4 to 65)

EFLHC = Equivalent Full Load Hours of cooling = See Table 195 CF = Peak Coincidence Factor = See Table 197

Unit = Number of rebated units ALGORITHM VARIABLES:


End Use

Grocery, Convenienc

e Store, and

Restaurant

Lodging, Hospital,

and Multifamily

Health Clinic,


Commercial

Education, Office,

and Retail Industrial Agriculture

All Commercial

Cooling DX 1,022 807 593 851 791 791 791


Size EERBase EEREff

(MBtuh) (EER) (Minimum EER)

≥65 and <135 11.2 11.7

≥135 and <240 11.0 11.7

≥240 and <760 10 10.5

≥760 9.7 9.9


End Use



Lodging, Hospital,

and Multifamily



Commercial



All Commercial

Cooling DX 0.00035993 0.00072962 0.00066279 0.00051390 0.00013081 0.00013081 0.00053998


186

VARIABLE SOURCES:

Table 198. Air Conditioning Algorithm Sources


SEERBase Code of Federal Regulations, 10 CFR 430.32(c)(1).

SEEREff Entered from application form.

CAPC Entered from application form.


Inferred from the 2011 Assessment of Potential


11.2 EER: Calculated from SEERBase, methodology from NREL Building America Research Benchmark Definition 2009, Equation 4: EER = -0.02×SEER2+1.12 × SEER: http://www.nrel.gov/docs/fy10osti/47246.pdf

Energy Savings: EEREff

Entered from application form; EER Minimums are based on CEE Tier 1: http://library.cee1.org/sites/default/files/library/7559/CEE_CommHVAC_UnitarySpec2012.pdf


Calculated from SEERBase (SEER 13—Federal Code, 2006 and 2015, 10 CFR 430.32(c)(2) and 10 CFR 430.32(c)(3)); methodology from NREL Building America Research Benchmark Definition 2009, Equation 4: EER = -0.02×SEER2+1.12 × SEER: http://www.nrel.gov/docs/fy10osti/47246.pdf

Demand Savings: EEREff

Entered from application form, based on AHRI database; highest EER listed is 18 as of August 2013.




http://library.cee1.org/sites/default/files/library/7559/CEE_CommHVAC_UnitarySpec2012.pdf



187

HVAC: Boiler

Measure Description Qualified boilers have AFUE ratings of 87% or greater, making them more efficient than models simply meeting the federal minimum standard for energy efficiency.

Fuel Gas

End Use HVAC

Baseline Equipment A standard boiler.

Efficiency Qualification Boiler <300 MBtuh: Minimum AFUE of 87%; Greater than 300 MBtuh should be considered a custom project.


-Equipment size (in MBtuh). -Heating efficiency (in AFUE).




ANNUAL ENERGY SAVINGS ALGORITHM: Natural Gas Savings Therms—Boiler—<300 Btuh—AFUE Rated

Where: = Annual Fuel Utilization Efficiency of baseline efficiency system = 82% = Annual Fuel Utilization Efficiency of new high-efficiency system = (87-98%)

CAP = Input capacity of boiler system in MBtuh = (30 to 300) = Equivalent Full Load Hours of heating = See Table 199

100 = Conversion from Mbtu to therms Unit = Number of rebated units

ANNUAL ENERGY DEMAND ALGORITHM: Natural Gas Demand Savings Peak Therms/hr—Boiler <300 MBtuh—AFUE Rated

Where: Annual Therms = Annual therms savings from boiler = Calculated


Table 199. EFLH of Heating

End Use



Lodging, Hospital,

and Multifamily



Commercial



All Commercial

Boiler 1,001 1,561 1,050 1,191 1,227 1,227 1,227


188


End Use



Lodging, Hospital,

and Multifamily



Commercial



All Commercial

Space Heat Boiler

0.01083404 0.01149222 0.00980814 0.01184344 – – 0.01163881

VARIABLE SOURCES:

Table 201. Boiler Algorithm Sources



AFUEEff Entered from application form, based on AHRI database; highest AFUE listed is 96.3 as of August 2013.

CAP Entered from application form, based on AHRI database.






189

HVAC: Boiler Tune-Up Maintenance

Measure Description

Boiler tune-up (maintenance) includes: professional cleaning of burners, combustion chambers, and heat exchange surfaces; adjusting air-flow and reducing excessive stack temperatures; cleaning and inspecting burner nozzles; adjusting burners and gas inputs, manual, or motorized draft controls; and following checklist of items for proper operation.

Fuel Gas

End Use Cooking

Baseline Equipment Existing commercial boiler that require tune-ups.


Example checklist and requirements: -Boiler qualify for tune-up rebates once every 12 months. -Measure combustion efficiency using an electronic flue gas analyzer. -Clean burners, combustion chamber, and heat exchange surface. -Adjust air-flow and reduce excessive stack temperatures. -Clean and inspect burner nozzles. -Complete visual inspection of system piping and insulation. -Check adequacy of combustion air intake. -Adjust burner and gas input, manual, or motorized draft control. -Check proper venting. -Check safety controls.


Boiler Capacity (in MBtuh).




ANNUAL ENERGY SAVINGS ALGORITHM: Natural Gas Savings Therms—Boiler Tune-Up Maintenance

Where:

= Annual therms savings per Mbtuh = 0.2109 CAP = Capacity of heating system in MBtuh = Range

(36 to 30,000) ANNUAL ENERGY DEMAND ALGORITHM: Natural Gas Demand Savings Peak Therms—Boiler Tune-Up Maintenance

Where: Annual Therms = Annual therms savings from boiler maintenance = Calculated



190



End Use



Lodging, Hospital,

and Multifamily



Commercial



All Commercial

Space Heat

Boiler 0.01083404 0.01149222 0.00980814 0.01184344 – – 0.01163881

VARIABLE SOURCES:

Table 203. Boiler Tune-Up Maintenance Algorithm Sources


SavingsperMBtuh Source: IPL Energy Efficiency Programs 2009 Evaluation Group 1 Programs, Volume 1; KEMA; page 3-24.





191

HVAC: Boiler Vent Damper

Measure Description A vent damper automatically shuts off flue pipes when burners do not run, eliminating unwanted outside air drafts.

Fuel Gas

End Use HVAC

Baseline Equipment Boiler without a vent damper installed.

Efficiency Qualification Thermal vent dampers or electric vent dampers.


Equipment size (in MBtuh). Number of boilers with dampers installed.




ANNUAL ENERGY SAVINGS ALGORITHM: Natural Gas Savings Therms—Boiler Vent Damper

Where: = Input capacity of boiler system in MBtuh =

(30 to 1,000,000) = Equivalent Full Load Hours of heating = See Table 204

100 = Conversion from Mbtu to therms SF = Savings Factor = 6% (Default Value)

Unit = Number of boilers with dampers installed = 1 (Default Value) ANNUAL ENERGY DEMAND ALGORITHM: Natural Gas Demand Savings Peak Therms/hr—Boiler Vent Damper

Where: Annual Therms = Annual therms savings from boiler vent damper = Calculated



End Use



Lodging, Hospital,

and Multifamily



Commercial



Boiler 1,001 1,561 1,050 1,191 1,227 1,227 1,227


192


End Use



Lodging, Hospital,

and Multifamily



Commercial



Space Heat

Boiler 0.01083404 0.01149222 0.00980814 0.01184344 – – 0.01163881

VARIABLE SOURCES:

Table 206. Boiler Vent Damper Algorithm Sources


CAPInput Entered from application form, based on AHRI database.

Table 204. EFLH of Heating Inferred from the 2011 Assessment of Potential.

SF

CenterPoint Energy—Triennial CIP/Demand-Side Management (DSM) Plan 2010-2012 Report, U.S. Department of Housing and Urban Development: http://portal.hud.gov/hudportal/HUD?src=/program_offices/public_indian_housing/programs/ph/phecc/strat_h1


http://portal.hud.gov/hudportal/HUD?src=/program_offices/public_indian_housing/programs/ph/phecc/strat_h1

http://portal.hud.gov/hudportal/HUD?src=/program_offices/public_indian_housing/programs/ph/phecc/strat_h1


193

HVAC: Chiller (Water- or Air-Cooled)

Measure Description Higher-efficiency air- and water-cooled chillers use less kW per ton of cooling, reducing electric demand and annual energy consumption.

Fuel Electric

End Use HVAC

Baseline Equipment Standard chiller.

Efficiency Qualification Air-Cooled Chiller: See Table 207. Water-Cooled Chiller: See Table 208.


Equipment size (in MBtuh or tons). Efficiency (in full and part load kW/Ton or full and part load EER).




Table 207. Energy Qualification: Air-Cooled Chiller

Air-Cooled Type Size Full Load—EER IPLV—EER

All < 150 Tons ≥ 10.04 ≥ 13.125

≥ 150 Tons ≥ 10.04 ≥ 13.388

Table 208. Energy Qualification: Water-Cooled Chiller

Water-Cooled Type Size Tons Full Load—kW/Ton IPLV—kW/Ton

Positive Displacement/Reciprocating

<150 ≤ 0.738 ≤ 0.586

≥150 and <300 ≤ 0.648 ≤ 0.552

≥300 ≤ 0.59 ≤ 0.514

Centrifugal

<300 ≤ 0.604 ≤ 0.568

≥300 and <600 ≤ 0.549 ≤ 0.523

≥600 ≤ 0.543 ≤ 0.513

ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Water-Cooled Chillers

Where: = Integrated Part-Load Value efficiency in kW/ton of standard

baseline efficiency system = See Table 209

= Integrated Part-Load Value efficiency in kW/ton of high-efficiency system

= (0.25 to 0.615)

= Capacity of cooling system in tons (tons = MBtuh/12) = (25 to 1,500) = Equivalent Full Load Hours of cooling = See Table 210

Units = Number of rebated units Electric Savings kWh—Air-Cooled Chillers


194

Where: 12 = Conversion factor in kWh/ton

= Integrated Part-Load Value efficiency in EER of standard baseline efficiency system

= See Table 211

= Integrated Part-Load Value efficiency in EER of high-efficiency system

= (13.125 to 25)

= Capacity of cooling system in tons (tons = MBtuh/12) = (25 to 500) = Equivalent Full Load Hours of cooling = See Table 210

Units = Number of rebated units ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Water-Cooled Chiller

Where: = Rated Full Load Efficiency in kW/ton of standard baseline

efficiency system = See Table 209

= Rated Full Load Efficiency in kW/ton of high-efficiency system = (0.300 to 0.738)

= Capacity of cooling system in tons (tons = MBtuh/12) = (25 to 1,500) = Equivalent Full Load Hours of cooling = See Table 210


Electric Demand Savings Peak kW—Air-Cooled Chiller

Where:

12 = Conversion factor in kWh/ton = Rated Full Load Efficiency in EER of standard baseline


= Integrated Part-Load Value efficiency in EER of high-efficiency system

= (13.125 to 25)

= Capacity of cooling system in tons (tons = MBtuh/12) = (25 to 500) = Equivalent Full Load Hours of cooling = See Table 210



195


Table 209. Part-Load and Full Load Efficiency of Water-Cooled Chillers

2009 IECC Requirements

Water-Cooled Type Size (TONS) FullLoadBase (kW/Ton) IPLVBase (kW/Ton)

Positive Displacement/Reciprocating

<150 0.775 0.615

≥150 and <300 0.680 0.580

≥300 0.620 0.540

Centrifugal

<300 0.634 0.596

≥300 and <600 0.576 0.549

≥600 0.570 0.539


End Use



Lodging, Hospital,

and Multifamily

Health Clinic,


Commercial



All Commercial

Cooling Chillers

1,361 1,223 579 1,154 1,053 1,053 1,053

Table 211. Part-Load and Full Load Efficiency of Standard Baseline Air-Cooled Chillers


Air-Cooled Type Size (TONS) FullLoadBase (ERR) IPLVBase (EER)

All <150 9.562 12.500

≥150 9.562 12.750


End Use






Commercial



All Commercial

Cooling Chillers

0.00035993 0.00043655 0.00067355 0.00049971 0.00013081 0.00013081 0.00052604

VARIABLE SOURCES:

Table 213. Chiller (Water- or Air-Cooled) Algorithm Sources


Table 209. Part-Load and Full Load Efficiency of Water-Cooled Chillers

2009 IECC (IA State Code)—Table 503.2.3(7).

kW/tonIPLVEff Entered from application form.


Table 210. EFLH of Cooling Inferred from the 2011 Assessment of Potential.


196


Table 211. Part-Load and Full Load Efficiency of Standard Baseline


EERIPLVEff Entered from application form.

kW/tonFLEff Entered from application form.



EERFLEff Entered from application form.


197

HVAC: Chiller-Pipe Insulation

Measure Description

-3" of insulation (approximately R-11) on a chiller pipe, either existing or new. -Savings captured by reducing the amount of undesired heat gain by the chiller pipe.

Fuel Electric

End Use HVAC

Baseline Equipment Poorly insulated chiller pipes.


-Chiller Insulation must have a thermal resistance of approximately R-11. -"New" refers to the installation of a 3" thickness ~R-11 insulation on a chiller pipe during new construction; baseline is the minimum pipe insulation requirement defined by the IECC 2009 Table 503.2.8. -"Existing" refers to the installation of a 3" thickness ~R-11 insulation to replace an existing degraded, poorly performing insulation on a chiller pipe (does not satisfy building code standards).


-Length of the chiller pipe insulation installed (feet). -Construction or application type (new construction/major renovation or existing construction).




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Chiller—Pipe Insulation

Where:

LFSavings = Total length of the chiller pipe with insulation Length = Annual per linear foot kWh savings from the installation of 3"

R-11 thickness insulation = See Table 214

ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Chiller—Pipe Insulation

Where:

Annual kWh = Annual savings from chiller pipe insulation = Calculated CF = Peak Coincidence Factor = See Table 215


Table 214. Electric Savings Per Foot from Chiller-Pipe Insulation

Construction/Application Type Per LF Savings [kWh/LF/year]

New Construction/Major Renovation

2.0

Existing Construction 9.9


198


End Use






Commercial



All Commercial

Cooling Chillers

0.00035993 0.00043655 0.00067355 0.00049971 0.00013081 0.00013081 0.00052604

VARIABLE SOURCES:

Table 216. Chiller-Pipe Insulation Algorithm Sources


Length Entered from application form.




199

HVAC: Chiller Tune-Up Maintenance

Measure Description

Chiller tune-up (maintenance) includes the professional cleaning of water-cooled chiller condenser and evaporator tubes, oil level and pressure, compressor and pump checks, pressure control checks, and filter inspections. Following checklist of items for proper operation.

Fuel Electric

End Use HVAC

Baseline Equipment Existing commercial chillers that require tune-ups.



Equipment size (in MBtuh or tons).




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Chillers Tune-up Maintenance

Water-Cooled:

Air Cooled:

Where:

= Integrated Part-Load Value efficiency (in kW/ton or EER) of standard baseline efficiency system

= See Table 217

12 = Conversion factor from EER to kW/ton = 12 = Capacity of cooling system in tons (tons = MBtuh/12) = Range

(25 to 1,500) = Equivalent Full Load Hours of cooling = See Table 218

= Cooling savings from tune-up = 8% Units = Number of rebated units

ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Chillers Tune-up Maintenance

Water-Cooled:

Air Cooled:


200

Where: = Rated Full Load Efficiency in kW/ton of standard baseline


12 = Conversion factor from EER to kW/ton = 12 = Capacity of cooling system in tons (tons = MBtuh/12) = Range

(25 to 1,500) = Equivalent Full Load Hours of cooling = See Table 218

= Cooling savings from tune-up = 8% CF = Peak Coincidence Factor = See Table 219

Units = Number of rebated units ALGORITHM VARIABLES:

Table 217. Par-Load and Full-Load Efficiencies of Chillers


Chiller Type Size (TONS) FullLoadBase (EER

or kW/Ton) IPLVBase (EER or

kW/Ton) FullLoad and

IPLV Unit

Air-Cooled <150 9.562 12.500 EER

≥150 9.562 12.750 EER

Water-Cooled Positive Displacement/ Reciprocating

<150 0.775 0.615 kW/ton

≥150 and <300 0.680 0.580 kW/ton

≥300 0.620 0.540 kW/ton

Water-Cooled Centrifugal

<300 0.634 0.596 kW/ton

≥300 and <600 0.576 0.549 kW/ton

≥600 0.570 0.539 kW/ton


End Use



Lodging, Hospital,

and Multifamily

Health Clinic,


Commercial

Education, Office,


All Commercial

Cooling Chillers

1,361 1,223 579 1,154 1,053 1,053 1,053


End Use






Commercial



Cooling Chillers

0.00035993 0.00043655 0.00067355 0.00049971 0.00013081 0.00013081 0.00052604


201

VARIABLE SOURCES:

Table 220. Chiller Tune-Up Maintenance Algorithm Sources


Table 217. Par-Load and Full-Load Efficiencies of



SFC

Multiple sources have indicated savings between 5% and 25%. Assumed 8% savings as the most prevalent value. California Statewide Commercial Energy Efficiency Potential Study 2002, Volume 1&2. Plant Services: Ten Tips for Improving Chiller Efficiency & Progress Energy: Chiller Optimization and Energy-Efficient Chillers & Reliant: HVAC: Cleaning Condenser Coils.






202

HVAC: Duct Insulation

Measure Description Packaged DX and heat pump equipment generally are coupled with a ducting system inside a building. Insulating ducts reduces energy loss to the unconditioned plenum space.

Fuel Electric/Gas

End Use HVAC

Baseline Equipment Poorly insulated air ducts for HVAC systems.

Efficiency Qualification -Duct insulation must be R-8 or better. -Business assessment or pre-installation assessment required. -Must be existing construction.


Linear foot of duct (in feet).




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Duct Insulation

Where: = Annual savings per linear foot depend on heating and cooling

equipment = See Table 221

= Linear foot of duct (in ft) = (1 to 5,000)

Natural Gas Savings Therms—Duct Insulation

Where: = Annual savings per linear foot depend on heating fuel equipment = See Table 221

= Linear foot of duct (in ft) = (1 to 5,000) ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Duct Insulation

Where: = Annual savings from duct insulation = Calculated

= Peak Coincidence Factor = See Table 219 Natural Gas Demand Savings Peak Therms—Duct Insulation

Where: Annual Therms = Annual therms savings from duct insulation = Calculated


203


Table 221. Annual Electric Savings per Linear Foot from Duct Insulation

End Use HVAC System SavingsPerUnit [kWh/ft]

Space Heat Electric Furnace 14.00

Heat Pump Heat Pump 13.74

Heat Pump-Cooling Heat Pump 4.58

Heat Pump-Heating Heat Pump 9.16

Cooling DX Rooftop DX 4.58

Table 222. Annual Gas Savings per Linear Foot from Duct Insulation

End Use HVAC System Therms/ft—SavingsPerUnit

Space Heat Furnace Gas Furnace 0.73

Table 223. Electric Demand Savings: Peak Coincidence Factor

End Use






Commercial



Cooling DX 0.00035993 0.00072962 0.00066279 0.00051390 0.00013081 0.00013081 0.00053998

Space Heat – – – – – – –

Heat Pump 0.00016505 0.00016509 0.00016423 0.00014486 0.00013081 0.00013081 0.00015943

Heat Pump-Cooling

0.00035993 0.00072962 0.00066279 0.00051390 0.00013081 0.00013081 0.00053998

Heat Pump-Heating

– – – – – – –

Table 224. Natural Gas Demand Savings: Peak Coincidence Factor

End Use






Commercial



All Commercial

Space Heat Furnace

0.01083404 0.00995413 0.00654527 0.01144178 – – 0.00883527


204

VARIABLE SOURCES:

Table 225. Duct Insulation Algorithm Sources


Table 221. Annual Electric Savings per Linear Foot

Inferred from 2011 Assessment of Potential. Weighted by IPL sales and end-use distributions by building type to roll into one savings value per end use.


Table 222. Annual Gas Savings per Linear Foot







205

HVAC: Duct Sealing and Repair

Measure Description

Duct sealing and repair can save energy, improve air and thermal distribution (comfort and ventilation), and reduce cross-contamination between different zones in buildings (e.g., smoking vs. non-smoking, bio-aerosols, localized indoor air pollutants).

Fuel Electric/Gas

End Use HVAC

Baseline Equipment Air ducts in need of maintenance (sealing and/or repair).

Efficiency Qualification -Duct sealing and repair with ADS, mastic, or other code compliant methods. -Business assessment or pre-installation assessment required. -Must be existing construction.


Linear foot of duct (in feet).




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Duct Sealing and Repair

Where: = Annual savings per linear foot depends on heating and cooling


= Linear foot of duct (in ft) = (1 to 5,000)

Natural Gas Savings Therms—Duct Sealing and Repair

Where: = Annual savings per linear foot depends on heating fuel


= Linear foot of duct (in ft) = (1 to 5,000) ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Duct Sealing and Repair

Where:

= Annual savings from duct sealing and repair = Calculated = Peak Coincidence Factor = See Table 228

Natural Gas Demand Savings Peak Therms—Duct Sealing and Repair


206

Where: Annual Therms = Annual therms savings from duct sealing and repair = Calculated


Table 226. Annual Savings per Linear Foot: Depends on Heating and Cooling Equipment

End Use HVAC System kWh/ft—SavingsPerUnit

Space Heat Electric Furnace 10.00


Heat Pump-Cooling Heat Pump 3.27

Heat Pump-Heating Heat Pump 6.54


Table 227. Annual Savings per Linear Foot: Depends on Heating Fuel Equipment

End Use HVAC System Therms/ft—SavingsPerUnit



End Use






Commercial



Cooling DX 0.00035993 0.00072962 0.00066279 0.00051390 0.00013081 0.00013081 0.00053998

Space Heat – – – – – – –

Heat Pump 0.00016505 0.00016509 0.00016423 0.00014486 0.00013081 0.00013081 0.00015943

Heat Pump-Cooling

0.00035993 0.00072962 0.00066279 0.00051390 0.00013081 0.00013081 0.00053998

Heat Pump-Heating

– – – – – – –


End Use






Commercial



Space Heat

Furnace 0.01083404 0.00995413 0.00654527 0.01144178 – – 0.00883527


207

VARIABLE SOURCES:

Table 230. Duct Sealing and Repair Algorithm Sources


Table 226. Annual Savings per Linear Foot: Depends on Heating and Cooling Equipment



Table 227. Annual Savings per Linear Foot: Depends on Heating Fuel Equipment







208

HVAC: ECM Fan

Measure Description ECMs consume less energy than standard motors used in heating and cooling air distribution systems.

Fuel Electric

End Use HVAC

Baseline Equipment Standard fan motor for HVAC systems.

Efficiency Qualification Replacement of standard fan motor with the installation of ECM.


Application type (cooling, heating, both).




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—ECM Fan

Where: = Annual savings (kWh) per EFLH by group = See Table 231

= Equivalent Full Load Hours of heating = See Table 232 Units = Number of rebated units =

ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—ECM Fan

Where: Annual kWh = Annual savings from ECM Fan = Calculated


Table 231. Annual savings (kWh) per EFLH by group

Measure



Lodging, Hospital,

and Multifamily



Commercial



ECM 0.65 0.57 0.79 0.41 - - 0.55


209


Application






Commercial



All Commercial

Cooling 1,022.33 807.24 593.23 851.39 790.66 790.66 790.66

Heating 894.89 855.15 992.25 1,196.14 1,097.09 1,097.09 1,097.09


End Use






Commercial



All Commercial

HVAC Aux 0.00014039 0.00022870 0.00018285 0.00019052 0.00013081 0.00013081 0.00017973

VARIABLE SOURCES:

Table 234. ECM Fan Computer Algorithm Sources


Table 231. Annual savings (kWh) per EFLH by group

Inferred from the 2011 Assessment of Potential and weighted by building types into the IPL groups; based on ECM Motors Manufactured By Regal Beloit and TYPICAL ENERGY SAVINGS for ECMs 1999 Nailor Industries, Inc.: http://www.hatchell.com/files/ECM_Story.pdf





http://www.hatchell.com/files/ECM_Story.pdf


210

HVAC: Furnace

Measure Description Qualified furnaces have higher Annual Fuel Utilization Efficiency (AFUE) ratings and higher efficiency blower motors, making them more efficient than non-qualified models.

Fuel Gas

End Use HVAC

Baseline Equipment A standard furnace.

Efficiency Qualification Furnace <225 MBtuh: Minimum AFUE of 94%


-Equipment size (in MBtuh). -Heating efficiency (in AFUE).




ANNUAL ENERGY SAVINGS ALGORITHM: Natural Gas Savings Therms—Furnace—<225 MBtuh—AFUE Rated

Where: = Annual Fuel Utilization Efficiency of baseline efficiency system = 78% = Annual Fuel Utilization Efficiency of new high-efficiency system = Range

(94% to 98%) CAP = Input capacity of furnace system in MBtuh = (36 to 225)

= Equivalent Full Load Hours of heating = See Table 235. EFLH of Heating

100 = Conversion from Mbtu to therms Unit = Number of rebated units

ANNUAL ENERGY DEMAND ALGORITHM: Natural Gas Demand Savings Peak Therms/hr— Furnace—<225 MBtuh—AFUE Rated

Where: Annual Therms = Annual therms savings from furnace = Calculated

CF = Peak Coincidence Factor = See Table 236. Peak Coincidence FactorTable 200



End Use



Lodging, Hospital,

and Multifamily



Commercial



All Commercial


211

Furnace 895 855 992 1,196 1,097 1,097 1,097


End Use



Lodging, Hospital,

and Multifamily



Commercial



All Commercial

Space Heat

Furnace 0.01083404 0.00995413 0.00654527 0.01144178 - - 0.00883527

VARIABLE SOURCES:

Table 237. Furnace Algorithm Sources



AFUEEff Entered from application form, based on AHRI database.

CAP Entered from application form, based on AHRI database.






212

HVAC: Furnace Tune-Up Maintenance

Measure Description

Furnace tune-up (maintenance) includes the professional cleaning of the burners, combustion chamber and heat exchange surface. Adjust air-flow and reduce excessive stack temperatures. Clean and inspect burner nozzle. Adjust burner and gas input, manual, or motorized draft control. Follow check list of items for proper operation.

Fuel Gas

End Use HVAC

Baseline Equipment Existing commercial furnace that require tune-ups


Example check list and requirements: -A furnace is eligible for a tune-up rebate once every 12 months. -Measure combustion efficiency using an electronic flue gas analyzer. -Clean burners, combustion chamber and heat exchange surface. -Adjust air-flow and reduce excessive stack temperatures. -Clean and inspect burner nozzle. -Complete visual inspection of system piping and insulation. -Check adequacy of combustion air intake. -Adjust burner and gas input, manual, or motorized draft control. -Check proper venting. -Check safety controls.


Furnace capacity (in MBtuh).




ANNUAL ENERGY SAVINGS ALGORITHM: Natural Gas Savings Therms—Furnace Tune-Up Maintenance

Where:

= Annual therms savings per Mbtuh = 0.2109 CAP = Capacity of heating system in MBtuh = (36 to 300)

ANNUAL ENERGY DEMAND ALGORITHM: Natural Gas Demand Savings Peak Therms—Furnace Tune-Up Maintenance

Where: Annual Therms = Annual therms savings from furnace maintenance = Calculated



213

VARIABLES:


End Use






Commercial



Space Heat Furnace

0.01083404 0.01149222 0.00980814 0.01184344 – – 0.01163881

VARIABLE SOURCES:

Table 239. Furnace Tune-Up Maintenance Algorithm Sources


SavingsperMBtuh Source: IPL Energy Efficiency Programs 2009 Evaluation Group 1 Programs, Volume 1; KEMA; page 3-24

CAP Entered from application form




214

HVAC: Air Source Heat Pump

Measure Description

Qualified electric commercial heat pump programs have higher SEERA and EER than today's standard models. They also have a higher HSPF and Coefficient of Performance (COP), which measures the heating efficiency of the heat pump.

Fuel Electric

End Use HVAC

Baseline Equipment Air source heat pump compliant with Federal Code, 2006 and 2015, 10 CFR 430.32(c)(2) and 10 CFR 430.32(c)(3)


-Air Source Heat Pump <65 MBtuh: Minimum SEER efficiency of 14.5 and minimum HSPF efficiency of 8.2 -Air Source Heat Pump ≥65 and <135 MBtuh: Minimum EER efficiency of 11.3 and minimum COP efficiency of 3.4 (at 47°F db/43°F wb Outdoor Air) and 2.4 (at 17°F db/15°F wb Outdoor Air) -Air Source Heat Pump ≥135 and <240 MBtuh: Minimum EER efficiency of 10.9 and minimum COP efficiency of 3.2 (at 47°F db/43°F wb Outdoor Air) and 2.1 (at 17°F db/15°F wb Outdoor Air) -Air Source Heat Pump ≥240 and <760 MBtuh: Minimum EER efficiency of 10.3 and minimum COP efficiency of 3.2 (at 47°F db/43°F wb Outdoor Air) and 2.1 (at 17°F db/15°F wb Outdoor Air)


-Equipment size (in MBtuh or tons). -Cooling efficiency (in SEER or EER). -Heating efficiency (in HSPF or COP).




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Air Source Heat Pump <65 MBtuh—SEER and HSPF Rated

Where:

= Seasonal Energy Efficiency Ratio of baseline efficiency system = 13.0* 14.0**

= Seasonal Energy Efficiency Ratio of new high-efficiency system = (14.5 to 35)

= Equivalent Full Load Hours of cooling = See Table 240 = Capacity of cooling system in MBtuh (Tons x 12) = (4 to 65)

= Heating Seasonal Performance Factor of baseline efficiency system

= 7.7* 8.2**

= Heating Seasonal Performance Factor of new high-efficiency system

= (8.2 to 15)

= Equivalent Full Load Hours of heating See Table 240 = Capacity of cooling System in MBtuh (Tons x 12) (4 to 65) Units = Number of rebated units



215

Electric Savings kWh—Air Source Heat Pump ≥65 MBtuh—EER and COP Rated

Where:

= Energy Efficiency Ratio of baseline efficiency system = See Table 241 = Energy Efficiency Ratio of new high-efficiency system = (10.3 to 18)



= See Table 241

= Heating Seasonal Performance Factor of new high-efficiency system

= (3.2 to 4.5)

= Equivalent Full Load Hours of heating See Table 240 = Capacity of cooling system in MBtuh (Tons x 12) (65 to 480) Units = Number of rebated units

ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Air Source Heat Pump <65 MBtuh—EER Rated

Where: = Energy Efficiency Ratio of baseline efficiency system = 11.2*

11.8** = Energy Efficiency Ratio of new high-efficiency system = (9.8 to 16)



*Before 1/1/2015 **After 1/1/2015 Federal Code Change Electric Demand Savings Peak kW—Air Source Heat Pump ≥65 MBtuh—EER Rated

Where:

= Energy Efficiency Ratio of baseline efficiency system = See Table 241 = Energy Efficiency Ratio of new high-efficiency system = (10.3 to 18)

= Equivalent Full Load Hours of cooling = See Table 240


216

= Capacity of cooling system in MBtuh (Tons x 12) = (4 to 65) CF = Peak Coincidence Factor = See Table 242

Units = Number of rebated units ALGORITHM VARIABLES:

Table 240. EFLH of Cooling and Heating

End Use






Commercial



All Commercial

Heat Pump Cooling 995 1,006 567 600 691 691 691

Heat Pump Heating 471 610 396 588 478 478 478

Table 241. Energy Efficiency Ratio and Coefficient of Performance of Baseline Efficiency System

Size (MBtuh)

EERBase (EER)

EEREff (Minimum EER)

COPBase (COP)

COPEff (Minimum COP)

≥65 and <135 11.0 11.3 3.3 3.4

≥135 and <240 10.6 10.9 3.2 3.2

≥240 and <760 9.5 10.3 3.2 3.2


End Use






Commercial



All Commercial

Heat Pump 0.00016505 0.00016509 0.00016423 0.00014486 0.00013081 0.00013081 0.00015943

VARIABLE SOURCES:

Table 243. Air Source Heat Pump Algorithm Sources


SEERBase Federal Code, 2006 and 2015, 10 CFR 430.32(c)(2) and 10 CFR 430.32(c)(3)

SEEREff Entered from application form



CAPC Entered from application form or AHRI database

HSPFBase Federal Code, 2006 and 2015, 10 CFR 430.32(c)(2) and 10 CFR 430.32(c)(3)

HSPFEff Entered from application form


217


CAPH Entered from application form or AHRI database, if not available use cooling capacity as a proxy

Energy Savings: EERBase Code of Federal Regulations, 10 CFR 430.32(c)(2); IECC 2009 Table 503.2.3(1)

EEREff Entered from application form; EER Minimums are based on CEE Tier 1: http://library.cee1.org/sites/default/files/library/7559/CEE_CommHVAC_UnitarySpec2012.pdf

COPBase Code of Federal Regulations, 10 CFR 430.32(c)(1)

COPEff Entered from application form


Federal Code, 2006 and 2015, 10 CFR 430.32(c)(2) and 10 CFR 430.32(c)(3), calculated from SEERBase, methodology from NREL Building America Research Benchmark Definition 2009, Equation 4: EER = -0.02×SEER2+1.12 × SEER, http://www.nrel.gov/docs/fy10osti/47246.pdf







218

HVAC: Geothermal Heat Pump

Measure Description Geothermal heat pumps have higher EER and COP ratings than conventional air-source heat pump models. The baseline represents a standard-efficiency, air-source heat pump.

Fuel Electric

End Use HVAC

Baseline Equipment Geothermal heat pump compliant with Federal Code, 2006 and 2015, 10 CFR 430.32(c)(2) and 10 CFR 430.32(c)(3).


-Tier 1: Geothermal Heat Pump: Minimum EER efficiency of 17.0 and minimum COP efficiency of 3.6. -Tier 2: Geothermal Heat Pump: Minimum EER efficiency of 20.0 and minimum COP efficiency of 4.0. -Tier 3: Geothermal Heat Pump: Minimum EER efficiency of 25.0 and minimum COP efficiency of 4.5. -Greater than 240 Mbtuh moved to the Custom Rebate Program.


-Application type (water-to-water, water-to-air, direct geoexchange). -Equipment type (water-loop heat pump, ground-water heat pump, ground-loop heat pump). -System type (open loop, closed loop). -Equipment size (in MBtuh or tons). -Efficiency (EER and COP). -Installation date. -Variable speed geothermal systems (Y/N).




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Geothermal Heat Pump <65 MBtuh—Single/Constant Speed

Where: = Energy Efficiency Ratio of baseline efficiency system = 11.2*

11.8** = Rated full load Energy Efficiency Ratio of high-efficiency system = (17 to 60)

= Equivalent Full Load Hours of cooling = See Table 244 = Rated full load capacity of cooling system in MBtuh (Tons x 12) = (4 to 65) = Heating Seasonal Performance Factor of baseline efficiency

system = 2.26*

2.40** = Rated full load Coefficient of Performance of high-efficiency

system = (3.6 to 10)

= Equivalent Full Load Hours of heating See Table 244 = Rated full load capacity of heating System in MBtuh (Tons x 12) (4 to 65) Units = Number of rebated units


219


Electric Savings kWh—Geothermal Heat Pump ≥65 MBtuh—Single/Constant Speed

Where:

= Energy Efficiency Ratio of baseline efficiency system = See Table 245 = Rated full load Energy Efficiency Ratio of high-efficiency system = (17 to 60)

= Equivalent Full Load Hours of cooling = See Table 244 = Rated full load capacity of cooling system in MBtuh (Tons x 12) = (65 to 240) = Heating Seasonal Performance Factor of baseline efficiency

system = See Table 245

= Rated full load Coefficient of Performance of new high-efficiency system

= (3.6 to 10)

3.412 = Conversion factor from Btuh to kilowatts = 3.412 = Equivalent Full Load Hours of heating = See Table 244

= Rated full load capacity of heating System in MBtuh (Tons x 12) = (65 to 240) Units = Number of rebated units

Electric Savings kWh—Geothermal Heat Pump <65 MBtuh—Variable Speed

Where:


= 0.5


= 0.5


= 0.85

FLHC = Full load cooling mode operation factor where cooling mode the GSHP operates 15% of the time at full load (less efficient)

= 0.15


220

and 85% at partial load (more efficient). CAPFL-C = Rated full load capacity of cooling system in MBtuh = Range (4 to 65) CAPFL-H = Rated full load capacity of heating system in MBtuh = Range (4 to 65)

EERBase = Energy Efficiency Ratio of baseline efficiency system [Btu/W-h] = 11.2* 11.8**


= Range (17 to 70)


= Range (17 to 60)



= Range (3.6 to 10)


= Range (3.6 to 12)

EFLHC = Equivalent Full Load Hours of Cooling = See Table 244. EFLH of Cooling and Heating

EFLHH = Equivalent Full Load Hours of Heating = See Table 244. EFLH of Cooling and Heating

3.412 = Conversion Btuh per watt = 3.412 Unit = Number of Rebated Units

*Before 1/1/2015

**After 1/1/2015

Federal Code Change

Electric Savings kWh—Geothermal Heat Pump ≥65 MBtuh—Variable Speed

Where:


= 0.5


= 0.5

PLFC = Part load cooling mode operation factor where cooling mode = 0.85


221

the GSHP operates 15% of the time at full load (less efficient) and 85% at partial load (more efficient).


= 0.15


EERBase = Energy Efficiency Ratio of baseline efficiency system [Btu/W-h] =

See Table 245. Energy Efficiency Ratio and Coefficient of Performance of Baseline Efficiency System


= Range (17 to 70)


= Range (17 to 60)



= Range (3.6 to 10)


= Range (3.6 to 12)

EFLHC = Equivalent Full Load Hours of Cooling = See Table 244. EFLH of Cooling and Heating

EFLHH = Equivalent Full Load Hours of Heating = See Table 244. EFLH of Cooling and Heating

3.412 = Conversion Btuh per watt = 3.412 Unit = Number of Rebated Units

*Before 1/1/2015 **After 1/1/2015

Federal Code Change

ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Geothermal Heat Pump <65 MBtuh

Where:

= Energy Efficiency Ratio of baseline efficiency system = 11.2* 11.8**

= Rated full load Energy Efficiency Ratio of high-efficiency system = (17 to 60)




222

Units = Number of rebated units *Before 1/1/2015 **After 1/1/2015 Federal Code Change Electric Demand Savings Peak kW—Geothermal Heat Pump ≥ 65 MBtuh

Where:

= Energy Efficiency Ratio of baseline efficiency system = See Table 245 = Rated full load Energy Efficiency Ratio of high-efficiency system = (17 to 60)

= Equivalent Full Load Hours of cooling = See Table 244 = Rated full load capacity of cooling system in MBtuh (Tons x 12) = (65 to 240)




End Use

Grocery, Convenience Store, and Restaurant

Lodging, Hospital,

and Multifamily



Commercial

Education, Office,


All Commercial

Heat Pump—Cooling 995 1,006 567 600 691 691 691

Heat Pump—Heating 471 610 396 588 478 478 478


Size (MBtuh) EERBase EEREff COPBase COPEff

≥65 and <135 11.0 17.0 3.3 3.6

≥135 and <240 10.6 17.0 3.2 3.6


End Use






Commercial



Heat Pump 0.00016505 0.00016509 0.00016423 0.00014486 0.00013081 0.00013081 0.00015943


223

VARIABLE SOURCES:

Table 247. Geothermal Heat Pump Algorithm Sources


Energy and Demand Savings Geothermal Heat Pump <65 MBtuh: EERBase

Federal Code, 2006 and 2015, 10 CFR 430.32(c)(2) and 10 CFR 430.32(c)(3), calculated from SEERBase, methodology from NREL Building America Research Benchmark Definition 2009, Equation 4: EER = -0.02×SEER2+1.12 × SEER: http://www.nrel.gov/docs/fy10osti/47246.pdf

EERFL-Eff Entered from application form; EER Minimums are based on IPL's 2014-2018 EEP Nonresidential Geothermal Heat Pump (Ground Source) Program Tier Level 1.

EERPL-Eff Use the rated part load efficiency from the application form or AHRI database

CAPFL-C Entered from application form or AHRI database.

Geothermal Heat Pump <65 MBtuh: COPBase

Federal Code, 2006 and 2015, 10 CFR 430.32(c)(2) (converted HSPF to COP, dividing HSPF by 3.412).

COPFL-Eff Entered from application form; COP minimums are based on IPL's 2014-2018 EEP Nonresidential Geothermal Heat Pump (Ground Source) Program Tier Level 1.

COPPL-Eff Use the rated part load efficiency from the application form or AHRI database

CAPFL-H Entered from application form or AHRI database; if not available, use cooling capacity as a proxy.

Energy and Demand Savings Geothermal Heat Pump ≥65 MBtuh: EERFL-Base

Code of Federal Regulations, 10 CFR 430.32; IECC 2009 Table 503.2.3(1).

Geothermal Heat Pump ≥65 MBtuh: COPBase

Code of Federal Regulations, 10 CFR 430.32.


FLFH

PLFC


FLFC







224

HVAC: Heat Pump Tune-Up Maintenance

Measure Description

Proper system tune-up/ maintenance ensures refrigerant charges and airflows through evaporator coils have been properly tested and correctly adjusted—two factors affecting system efficiency. Maintenance includes changing filters and cleaning coils to maintain overall performance and efficiency of a unit.

Fuel Electric

End Use HVAC

Baseline Equipment Existing heat pumps that require tune-ups.



-Equipment size (in MBtuh or tons). -Cooling efficiency (in SEER or EER). -Heating efficiency (in HSPF or COP). -Tune-up savings percent.




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Air Source Heat Pump <65 MBtuh—Tune-up

Where:

= Seasonal Energy Efficiency Ratio of baseline efficiency system = 13.0* 14.0**

= Equivalent Full Load Hours of cooling = See Table 248 = Cooling savings from tune-up = 7.50%


= 7.7* 8.2**

= Equivalent Full Load Hours of heating = See Table 248 = Heating savings from tune-up = 2.3%

= Capacity of heat pump system in MBtuh (Tons x 12) = (4 to 65) Units = Number of rebated units

*Before 1/1/2015 **After 1/1/2015 Federal Code Change Electric Savings kWh—Central and Rooftop Air Source Heat Pump ≥ 65 MBtuh (Cooling

Capacity)—Tune-up

Where:

= Energy Efficiency Ratio of baseline efficiency system = See Table 249 = Equivalent Full Load Hours of cooling = See Table 248


225

= Cooling savings from tune-up = 7.50% = Coefficient of Performance of baseline efficiency system = See Table 249

3.412 = Conversion Btuh per watt = Equivalent Full Load Hours of heating = See Table 248

= Heating savings from tune-up = 2.3% = Capacity of heat pump system in MBtuh (Tons x 12) = (65 to 480)

Units = Number of rebated units Electric Savings kWh—Geothermal Heat Pump—Tune-up

Where: = Energy Efficiency Ratio of baseline efficiency system = 13.4 = Equivalent Full Load Hours of cooling = See Table 248

= Cooling savings from tune-up = 7.50% = Coefficient of Performance of baseline efficiency system = 3.1

3.412 = Conversion factor from Btuh to kilowatts = 3.412 = Equivalent Full Load Hours of heating = See Table 248

= Heating savings from tune-up = 2.3% = Capacity of heat pump system in MBtuh (Tons x 12) = (65 to 480)

Units = Number of rebated units ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Air Source Heat Pump <65 Mbtuh—Tune-up

Where:

= Energy Efficiency Ratio of baseline efficiency system = 11.2* 11.8**

= Equivalent Full Load Hours of cooling = See Table 248 = Cooling savings from tune-up = 7.50%

= Capacity of cooling system in MBtuh (Tons x 12) = (4 to 65) CF = Peak Coincidence Factor = See Table 250

Units = Number of rebated units *Before 1/1/2015 **After 1/1/2015 Federal Code Change Electric Demand Savings Peak kW—Central and Rooftop Air Source Heat Pump ≥ 65 MBtuh (Cooling Capacity)—Tune-up


226

Where:

= Annual savings from Central and RoofTop Air Source Heat Pump ≥ 65 MBtuh (Cooling Capacity) - Tune-up

= Calculated


Electric Demand Savings Peak kW—Geothermal Heat Pump—Tune-up

Where: = Annual savings from geothermal heat pump = Calculated




End Use






Commercial



Heat Pump—Cooling

995 1,006 567 600 691 691 691

Heat Pump—Heating

471 610 396 588 478 478 478


Size (MBtuh) EERBase (EER) COPBase (COP)

≥65 and <135 11.0 3.3

≥135 and <240 10.6 3.2

≥240 and <760 9.5 3.2


End Use






Commercial



Heat Pump 0.00016505 0.00016509 0.00016423 0.00014486 0.00013081 0.00013081 0.00015943


227

VARIABLE SOURCES:

Table 251. Heat Pump Tune-up Maintenance Algorithm Sources





SFC

Cadmus Report: Energy Savings Impact of Improving the Installation of Residential Central Air Conditioners, 2005. Source: Cadmus Report: Bin Analysis, Energy Savings Impact of Improving the Installation of Residential Central Air Conditioners, 2005.


CAPHP Entered from application form, use cooling capacity as a proxy for total heat pump size.

Energy Savings: EERBase Code of Federal Regulations, 10 CFR 430.32(c)(2); IECC 2009 Table 503.2.3(1).

COPBase Code of Federal Regulations, 10 CFR 430.32(c)(1).

SFH

"Analysis of Heat Pump Installation Practices and Performance" by Heat Pump Working Group for Regional Technical Forum (RTF), 2005. Source: "Analysis of Heat Pump Installation Practices and Performance" by Heat Pump Working Group for Regional Technical Forum, 2005.


Federal Code, 2006 and 2015, 10 CFR 430.32(c)(2) and 10 CFR 430.32(c)(3), calculated from SEERBase, methodology from NREL Building America Research Benchmark Definition 2009, Equation 4: EER = -0.02×SEER2+1.12 × SEER: http://www.nrel.gov/docs/fy10osti/47246.pdf





228

HVAC: Package Terminal Air Conditioner and Heat Pump

Measure Description

Package terminal air conditioner (PTAC) units house all components: compressors; condenser and evaporator coils; expansion devices; condenser and evaporator fans; and associated operating and control devices—within a single cabinet. In most cases, this package unit is installed within a space and through the wall, as in the lodging segment. Standard size PTAC or package terminal heat pump (PTHP) refers to equipment with wall sleeve dimensions having: an external wall opening greater than or equal to 16 inches high or greater than or equal to 42 inches wide, and a cross-sectional area greater than or equal to 670 square inches. Non-standard size refers to PTAC or PTHP equipment with existing wall sleeve dimensions having: an external wall opening of less than 16 inches high or less than 42 inches wide, and a cross-sectional area less than 670 square inches.

Fuel Electric

End Use HVAC

Baseline Equipment Standard efficiency package terminal AC/HP unit

Efficiency Qualification -Package Terminal Air Conditioner: Minimum EER efficiency of 10.5 -Package Terminal Heat Pump: Minimum EER efficiency of 10.5 and COP efficiency of 3.0


-Equipment size (in MBtuh or tons). -Cooling efficiency (in EER). -Heating efficiency (in COP).




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Package Terminal Air Conditioner—EER Rated

Where:

CAPC = Capacity of cooling system in MBtuh (Tons x 12) = (7 to 15) EERBase = Energy Efficiency Ratio of baseline system = Calculated

EEREff = Energy Efficiency Ratio of new high-efficiency system = (10.5 to 16) EFLHC = Equivalent Full Load Hours of cooling = See Table 252 Units = Number of rebated units 10.9 = Constant used in calculating EERBase = 10.9

0.213 = Constant used in calculating EERBase = 0.213 Electric Savings kWh—Package Terminal Heat Pump—EER and COP Rated


229

Where:

CAPH = Capacity of heating system in MBtuh (Tons x 12) = (7 to 15) COPEff = Coefficient of Performance of new high-efficiency system = (3 to 6) 3.412 = Conversion factor from Btuh to kilowatt EFLHH = Equivalent Full Load Hours of cooling = See Table 253

2.9 = Constant used in calculating COPBase = 2.9 0.026 = Constant used in calculating COPBase = 0.026

ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Package Terminal Heat Pump—EER and COP Rated

Where:

Annual kWh = Annual savings from package terminal air conditioner = Calculated CF = Peak Coincidence Factor = See Table 254


Table 252. Package Terminal Air Conditioner—EER Rated: EFLH of Cooling

End Use






Commercial



Cooling DX 1,022 807 593 851 791 791 791

Table 253. Package Terminal Heat Pump—EER and COP Rated: EFLH of Cooling and Heating

End Use






Commercial



Heat Pump—Cooling

995 1,006 567 600 691 691 691

Heat Pump—Heating

471 610 396 588 478 478 478


230


End Use






Commercial



All Commercial

Cooling DX 0.00035993 0.00072962 0.00066279 0.00051390 0.00013081 0.00013081 0.00053998

VARIABLE SOURCES:

Table 255. Package Terminal Air Conditioner and Heat Pump Algorithm Sources


CAPc Entered from application form. If the unit’s capacity is less than 7,000 Btu/h, 7,000 Btu/h is used in the calculation. If the unit’s capacity is greater than 15,000 Btu/h, 15,000 Btu/h is used in the calculation.

EEREff Entered from application form.

CAPH Entered from application form.

COPEff Entered from application form.

COPBase Calculated based on Federal Standard 10 CFR Part 431: http://www.gpo.gov/fdsys/pkg/FR-2008-10-07/pdf/E8-23312.pdf EERBase

Table 252. Package Terminal Air Conditioner—EER Rated: EFLH of Cooling


Table 253. Package Terminal Heat Pump—EER and COP Rated: EFLH of Cooling and Heating



http://www.gpo.gov/fdsys/pkg/FR-2008-10-07/pdf/E8-23312.pdf


231


Measure Description Programmable thermostats automatically control setpoint temperatures, ensuring HVAC systems do not run during low-occupancy hours.

Fuel Electric/Gas

End Use HVAC Controls

Baseline Equipment A standard thermostat without a programmable feature.

Efficiency Qualification A programmable thermostat automatically controls setpoint temperatures, ensuring HVAC systems do not run during low-occupancy hours.


Building area controlled by the programmable thermostat (in ft2).




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Programmable Thermostat

Where: = Annual savings per square foot depends on heating and cooling


= Building square feet (in ft2) = (100 to 25,000) Natural Gas Savings Therms—Programmable Thermostat

Where: = Annual savings per linear foot depends on heating fuel


= Building square feet (in ft2) = (100 to 25,000) ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Programmable Thermostat

Where:

= Annual savings from programmable thermostat = Calculated = Peak Coincidence Factor = See Table 258

Natural Gas Demand Savings Peak Therms— Programmable Thermostat

Where: Annual Therms = Annual therms savings from programmable thermostat = Calculated



232


Table 256. Annual Savings per Square Foot: Depends on Heating and Cooling Equipment

End Use HVAC System kWh/Sqft—SavingsPerUnit

Space Heat Electric Resistance 0.250


Heat Pump Cooling Heat Pump 0.082

Heat Pump Heating Heat Pump 0.163


Table 257. Annual Savings per Square Foot: Depends on Heating Fuel Equipment

End Use HVAC System Therms/Swft- SavingsPerUnit


Space Heat Boiler Gas Boiler 0.013


End Use



Lodging, Hospital,

and Multifamily

Health Clinic,


Commercial



All Commercial

Cooling DX 0.00035993 0.00072962 0.00066279 0.00051390 0.00013081 0.00013081 0.00053998

Space Heat – – – – – – –

Heat Pump 0.00016505 0.00016509 0.00016423 0.00014486 0.00013081 0.00013081 0.00015943

Heat Pump- Cooling

0.00035993 0.00072962 0.00066279 0.00051390 0.00013081 0.00013081 0.00053998

Heat Pump- Heating

– – – – – – –


End Use



Lodging, Hospital,

and Multifamily

Health Clinic,


Commercial



All Commercial

Space Heat Furnace

0.01083404 0.00995413 0.00654527 0.01144178 – – 0.00883527

Space Heat Boiler

0.01083404 0.01149222 0.00980814 0.01184344 – – 0.01163881


233

VARIABLE SOURCES:



Table 256. Annual Savings per Square Foot: Depends on Heating and Cooling Equipment

Inferred from the 2011 Assessment of Potential. Unit energy savings based on percent savings assumptions from Database for Energy Efficient Resources (DEER) and other assumptions.

SqFt Entered from application form.

Table 257. Annual Savings per Square Foot: Depends on Heating Fuel Equipment

Unit energy savings based on percent savings assumptions from DEER and other assumptions.






234

Lighting: Bi-Level Control, Stairwell or Corridor

Measure Description Lighting controls sense the absence of occupants and either shut off individual lamps within multiple lamp fixtures or dim lamps to less than 50% power (typically 5%, 10%, or 33%) in stairwells or corridors.

Fuel Electric

End Use Commercial

Baseline Equipment Fixture on 24 hours a day.

Efficiency Qualification -Bi-level control for nonresidential stairwell or corridor lighting. -Conservative estimate determines savings.


Total wattage controlled by bi-level sensor.




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Stairwell or Corridor Bi-Level Lighting Control

Where:

Wcontrolled = Total wattage of lighting controlled by bi-level controls (per control)

SF = Savings factor for bi-level lighting controls = 40% 1,000 = Conversion factor from watts to kilowatts = 1,000 Hours = Annual lighting operating hours depends if stairwell or corridor;

from the application = See Table 261

NUnits = Number of bi-level controllers installed ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Stairwell or Corridor Bi-Level Lighting Control

Where:

Annual kWh = Annual kWh savings from Stairwell or Corridor Bi-Level Lighting Control

= Calculated



235


Table 261. Annual Hours of Lighting Use

End Use



Lodging, Hospital,

and Multifamily

Health Clinic,


Commercial

Education, Office,


All Commercial

Exterior Lighting

Stairwell Lighting

8,760 8,760 8,760 8,760 8,760 8,760 8,760 4,000

Corridor Lighting

5,211 5,126 3,824 3,310 6,000 4,500 3,806 4,000


End Use



Lodging, Hospital,

and Multifamily



Commercial



All Commercial

Lighting 0.00015799 0.00014871 0.00023078 0.00019620 0.00013081 0.00013081 0.00020796

VARIABLE SOURCES:

Table 263. Stairwell or Corridor Bi-Level Lighting Control Algorithm Sources

Algorithm Inputs

Algorithm Sources

SF 40%= Estimate based on summary of multiple sources below. Assume corridor and stairwell savings are the same. Available studies have small sample sizes; so a conservative estimate is used.

Wcontrolled Entered from the application form.


Entered from the application form or use default values. Groups weighted by sales data from IPL reference to 2011 Assessment of Potential. Average of comparison table from Commercial Buildings Energy Consumption Survey (CBECS) 2003 Region 2-Division 4, CLEAResult Small Business IPL 2013 Assumptions, PA TRM 2013, MidAtlantic TRM 2013, Northwest Power Planning Council the 6th Plan, IN TRM 2013. Results rounded. Industrial hours assume 7-day per week/16-hour per day. based on Lawrence Berkeley National Laboratory: Emerging Energy-Efficient Industrial Technologies Report, 2000. Agriculture hours based on conversations with Dave Warrington at IPL and other references documents from IPL's pervious EEPs.




236

Lighting: Daylighting Control

Measure Description Installation of daylighting controls (continuous dimming, dual-level switches, fluorescent fixtures).

Fuel Electric

End Use Commercial

Baseline Equipment Condition of no controls.

Efficiency Qualification -Minimum 45 watts controlled per control. -Daylighting controls with daylight harvesting ballasts.


Total wattage controlled by day lighting (entered from application form).

Market Opportunity Replacement on Burnout; Early Replacement



ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Daylighting Controls

Where:

Wcontrols = Total wattage controlled by daylighting controls SF = Savings factor in percent of savings by daylighting controls = 28%

1,000 = Conversion factor from watts to kilowatts = 1,000 HoursDaylight = Annual daylight hours = 2,600 ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Daylighting Controls

Where:

Annual kWh = Annual kWh savings from daylighting controls = Calculated CF = Peak Coincidence Factor = See Table 264



End Use






Commercial



All Commercial

Lighting 0.00015799 0.00014871 0.00023078 0.00019620 0.00013081 0.00013081 0.00020796


237

VARIABLE SOURCES:

Table 265. Daylighting Controls Algorithm Sources


SF

A Meta-Analysis of Energy Savings from Lighting Controls in Commercial Buildings, Energy Analysis Department Lawrence Berkeley National Laboratory Berkeley, September 2011: http://efficiency.lbl.gov/drupal.files/ees/Lighting%20Controls%20in%20Commercial%20Buildings_LBNL-5095-E.pdf

Wcontrols Entered from application form.

HoursDaylight Astronomical Applications Department of the U.S. Naval Observatory: http://aa.usno.navy.mil/data/docs/RS_OneYear.php



http://efficiency.lbl.gov/drupal.files/ees/Lighting%20Controls%20in%20Commercial%20Buildings_LBNL-5095-E.pdf

http://efficiency.lbl.gov/drupal.files/ees/Lighting%20Controls%20in%20Commercial%20Buildings_LBNL-5095-E.pdf

http://aa.usno.navy.mil/data/docs/RS_OneYear.php


238

Lighting: High-Efficiency Metal Halide

Measure Description Installation of lamps that require less power with pulse start or ceramic metal halide lamps.

Fuel Electric

End Use Commercial lighting

Baseline Equipment High-intensity discharge (HID) lighting with probe start fixture.


-Must be pulse start or ceramic metal halide.* -Must replace probe start fixtures. -The retrofit kit must include lamp and ballast. -Existing construction only.


-Efficient lamp wattage. -Efficient lamp quantity. -Building type.



Program Nonresidential Prescriptive Rebates Program *New standard will become effective January 1, 2015, but statutory deadline for the final rule was January 1, 2012. DOE missed the deadline. The earliest standard can be effective is still January 2015, but may be later. Re-evaluate measure if code is enacted.

ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—High-Efficiency Metal Halide Lighting

Where:

WBase = Wattage of baseline HID fixture = See Table 266 WEff = Wattage of efficient HID fixture = See Table 266

1,000 = Conversion factor from watts to kilowatts = 1,000 Hours = Annual lighting operating hours from the application = See Table 267

Nunits = Number of high-efficiency metal halide fixtures installed ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—High-Efficiency Metal Halide Lighting

Where:

Annual kWh = Annual kWh savings from efficient metal halide lighting = Calculated CF = Peak Coincidence Factor = See Table 268


239


Table 266. Baseline HID and Efficient Metal Halide Fixture Wattages

Measure Standard HID—WBase WEff

MH 32W 43 41

MH 50W 72 68

MH 70W 95 90

MH 100W 128 121

MH 150W 189 178

MH 175W 215 208

MH 250W 295 288

MH 400W 458 452

MH 750W 850 818

MH 1000W 1,080 1,066

MH 1500W 1,610 1,589







Commercial



All Commercial

Exterior Lighting

5,211 5,126 3,824 3,310 6,000 4,500 3,806 4,000


End Use






Commercial



All Commercial

Lighting 0.00015799 0.00014871 0.00023078 0.00019620 0.00013081 0.00013081 0.00020796

VARIABLE SOURCES:

Table 269. High-Efficiency Metal Halide Algorithm Sources



WBase:Metal halide HID fixture with pulse start ballast, SCE 2013-2014 Table of Standard Fixture Wattages and Sample Lighting Table, Appendix B: http://www.aesc-inc.com/download/spc/2013SPCDocs/PGE/App%20B%20Standard%20Fixture%20Watts.pdf and reference to Building a Brighter Future: Your Guide to EISA-Compliant Ballast and Lamp Solutions from Philips Lighting: http://1000bulbs.com/pdf/advance%20eisa%20brochure.pdf

WEff: Based on efficient lamp wattage entered from application form.

http://www.aesc-inc.com/download/spc/2013SPCDocs/PGE/App%20B%20Standard%20Fixture%20Watts.pdf


http://1000bulbs.com/pdf/advance%20eisa%20brochure.pdf


240



Entered from application form or use default values. Groups weighted by sales data from IPL reference to 2011 Assessment of Potential. Average of comparison table from CBECS 2003 Region 2-Division 4, CLEAResult Small Business IPL 2013 Assumptions, PA TRM 2013, MidAtlantic TRM 2013, Northwest Power Planning Council the 6th Plan, IN TRM 2013. Results rounded. Industrial hours assume 7-day per week/16-hour per day. based on Lawrence Berkeley National Laboratory: Emerging Energy-Efficient Industrial Technologies Report, 2000. Agriculture hours based on conversations with Dave Warrington at IPL and other references documents from IPL's pervious EEPs.

NUnits Entered from application form.




241

Lighting: High Bay (HID) Delamping

Measure Description Removing unnecessary light bulbs or fixtures in areas producing greater-

than-needed illumination.

Fuel Electric


Baseline Equipment High Bay (HID).


-Permanent lamp removal can be claimed if completed project results in a

net reduction in the quantity of lamps.

-Delamping requires removal of lamps/ballasts and unused lamp-holders from existing fixtures without replacing the lamps.


Wattage of delamped bulb (lamp wattage not fixture wattage that includes

the ballast losses).

Market Opportunity Removal



ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—High Bay (HID) Delamping

Where:

WDelamp = Total wattage of delamped bulbs (sum of all lamps wattages) BF = Ballast factor to account for total fixture wattage = 1.1017

1.000 = Conversion factor from watts to kilowatts = 1,000 HOU = Annual lighting operating hours from the application = See Table 270

ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings kW—High Bay (HID) Delamping

Where:

Annual kWh = Annual kWh savings from high bay (HID) delamping = Calculated CF = Peak Coincidence Factor = See Table 271








Commercial



All Commercial

Exterior Lighting

5,211 5,126 3,824 3,310 6,000 4,500 3,806 4,000


242


End Use






Commercial



All Commercial

Lighting 0.00015799 0.00014871 0.00023078 0.00019620 0.00013081 0.00013081 0.00020796

VARIABLE SOURCES:

Table 272. High Bay (HID) Delamping Algorithm Sources


WDelamp Entered from application form.

BF Engineering determination based on regression analysis from SCE 2013-2014 Table of Standard Fixture Wattages and Sample Lighting Table, Appendix B: http://www.aesc-inc.com/download/spc/2013SPCDocs/PGE/App%20B%20Standard%20Fixture%20Watts.pdf


Entered from application form or use default values. Groups weighted by sales data from IPL reference to 2011 Assessment of Potential. Average of comparison table from CBECS 2003 Region 2-Division 4, CLEAResult Small Business IPL 2013 Assumptions, PA TRM 2013, MidAtlantic TRM 2013, Northwest Power Planning Council the 6th Plan, IN TRM 2013. Results rounded. Industrial hours assume 7-day per week/16-hour per day based on Lawrence Berkeley National Laboratory: Emerging Energy-Efficient Industrial Technologies Report, 2000. Agriculture hours based on conversations with Dave Warrington at IPL and other references documents from IPL's pervious EEPs.






243

Lighting: High-Bay

Measure Description Installation of lamps that require less power with high-bay T8 or T5HO fixtures replacing high-bay HID fixtures.

Fuel Electric

End Use Commercial

Baseline Equipment EISA compliant metal halide HID fixture with pulse start ballast after 2014.*


-High-Bay T8 fluorescent lamp with electronic ballast (T8). -High-Bay T5 high-output fluorescent lamp with electronic ballast (T5HO). -4' High-Bay T8 refers to a T8 lamp as part of a high-output electronic ballast and lamp fixture. -4' High-Bay T5 HO refers to a T5 high-output lamp as part of an electronic ballast and lamp fixture.


-Efficient lamp type (T8, T5HO). -Efficient lamp quantity. -Replaced lamp type (HID). -Building type.



Program Nonresidential Prescriptive Rebates Program *New standard will become effective January 1, 2015, but statutory deadline for the final rule was January 1, 2012. DOE missed the deadline. The earliest standard can be effective is still January 2015, but may be later. Re-evaluate introduction to MH EISA code in 2014.

ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—High-Bay Lighting

Where:

WBase = Wattage of baseline high bay fixture = See Table 273 WEff = Wattage of efficient high bay fixture = See Table 273

1,000 = Conversion factor from watts to kilowatts = 1,000 Hours = Annual lighting operating hours from the application = See Table 274 NUnits = Number of efficient high-bay lighting fixtures installed

ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—High-Bay Lighting

Where:

Annual kWh = Annual kWh savings from efficient high-bay fixture = Calculated CF = Peak Coincidence Factor = See Table 275


244


Table 273. Baseline and Efficient High-Bay Fixture Wattage

Measure Lamp

Quantity

WBase

WEff After 1/1/2015 WBase—EISA Compliant Metal Halide HID

After 1/1/2015 WBase—EISA Compliant Metal Halide HID

4' High-Bay T8 3 189 178 112

4' High-Bay T8 4 215 208 152

4' High-Bay T8 5 295 288 189

4' High-Bay T8 6 295 288 226

4' High-Bay T8 8 370 365 302

4' High-Bay T5 HO 3 235 232 179

4' High-Bay T5 HO 4 295 288 234

4' High-Bay T5 HO 5 370 365 294

4' High-Bay T5 HO 6 405 400 351

4' High-Bay T5 HO 8 513 506 468







Commercial



All Commercial

Exterior Lighting

5,211 5,126 3,824 3,310 6,000 4,500 3,806 4,000


End Use






Commercial



All Commercial

Lighting 0.00015799 0.00014871 0.00023078 0.00019620 0.00013081 0.00013081 0.00020796

VARIABLE SOURCES:

Table 276. High Bay Lighting Algorithm Sources



WBase:EISA compliant metal halide HID fixture with pulse start ballast, SCE 2013-2014 Table of Standard Fixture Wattages and Sample Lighting Table, Appendix B: http://www.aesc-inc.com/download/spc/2013SPCDocs/PGE/App%20B%20Standard%20Fixture%20Watts.pdf; and reference to Building a Brighter Future: Your Guide to EISA-Compliant Ballast and Lamp Solutions from Philips Lighting: http://1000bulbs.com/pdf/advance%20eisa%20brochure.pdf

WEff: Based on efficient lamp type and quantity entered from application form, SCE 2013-2014 Table of Standard Fixture Wattages and Sample Lighting Table, Appendix B: http://www.aesc-inc.com/download/spc/2013SPCDocs/PGE/App%20B%20Standard%20Fixture%20Watts.pdf







245







246

Lighting: High-Performance and Reduced Wattage T8

Measure Description Installation of fluorescent lamps that require less power.

Fuel Electric

End Use Commercial

Baseline Equipment Standard T8 lamps.


-Fluorescent reduced wattage T8 (RWT8) and ballasts packages replacing EISA-compliant fluorescent T12 or standard fluorescent T8 and ballasts packages. -Fluorescent high-performance T8 (HPT8) and ballasts packages replacing EISA-compliant fluorescent T12 or standard fluorescent T8 and ballasts packages. -Must have a ballast factor of less than 0.79 (BF < 0.79). -CEE qualified high-performance and reduced wattage 4-foot fluorescent lamps and ballasts.


-Efficient lamp type (HPT8, RWT8). -Efficient lamp quantity. -Replaced lamp type (T12 or standard T8). -Replaced lamp quantity. -Building type.




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—HPT8/RWT8 Fixtures

Where:

WBase = Wattage of baseline fluorescent fixture = See Table 277 WEff = Wattage of efficient fluorescent fixture = See Table 277

1,000 = Conversion factor from watts to kilowatts = 1,000 Hours = Annual lighting operating hours from the application = See Table 278

Nunits = Number of efficient light fixtures installed ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—HPT8/RWT8 Fixtures

Where:

Annual kWh = Annual kWh savings from HPT8/RWT8 lamp fixture = Calculated CF = Peak Coincidence Factor = See Table 279


247


Table 277. Baseline and Efficient HPT8/RWT8 Wattages

Measure Lamp Quantity WBase—

T8 Standard HPT8—WEff RWT8—WEff

HPT8/RWT8 (BF < 0.79) 1 31 27 21

HPT8/RWT8 (BF < 0.79) 2 59 54 42

HPT8/RWT8 (BF < 0.79) 3 89 76 63

HPT8/RWT8 (BF < 0.79) 4 112 105 84

HPT8/RWT8 (BF < 0.79) 6 175 156 126







Commercial



All Commercial

Exterior Lighting

5,211 5,126 3,824 3,310 6,000 4,500 3,806 4,000


End Use






Commercial



All Commercial

Lighting 0.00015799 0.00014871 0.00023078 0.00019620 0.00013081 0.00013081 0.00020796

VARIABLE SOURCES:

Table 280. HTP8/RWT8 Fixtures Algorithm Sources



WBase: SCE 2013-2014 Table of Standard Fixture Wattages and Sample Lighting Table, Appendix B: http://www.aesc-inc.com/download/spc/2013SPCDocs/PGE/App%20B%20Standard%20Fixture%20Watts.pdf

WEff: Based on efficient lamp type and quantity entered from application form; SCE 2013-2014 Table of Standard Fixture Wattages and Sample Lighting Table, Appendix B.


Entered from application form or used default values. Groups weighted by sales data from IPL reference to 2011 Assessment of Potential. Average of comparison table from CBECS 2003 Region 2—Division 4, CLEAResult Small Business IPL 2013 Assumptions, PA TRM 2013, MidAtlantic TRM 2013, Northwest Power Planning Council the 6th Plan, IN TRM 2013. Results rounded. Industrial hours assume 7 day per week/16 hour per day based on Lawrence Berkeley National Laboratory: Emerging Energy-Efficient Industrial Technologies Report, 2000. Agriculture hours based on conversations with Dave Warrington at IPL and other references documents from IPL's pervious EEPs.






248

Lighting: Induction Lamp Replacement

Measure Description Installation of electrodeless induction lamps that require less power.

Fuel Electric

End Use Commercial Lighting

Baseline Equipment Metal halide lamp.


-Maximum wattage eligible is a 250-watt induction lamp. -One-for-one replacement of incandescent or HID fixtures, including mercury vapor, high-pressure sodium, and standard metal halide or pulse-start metal halide.* -Existing construction only.


-Efficient lamp wattage. -Efficient lamp quantity. -Replaced lamp wattage. -Replaced lamp quantity. -Building type.


Sector(s) Commercial

Program Nonresidential Prescriptive Rebates

* Metal halide standard will become effective January 1, 2015, but statutory deadline for the final rule was January 1, 2012.

DOE missed the deadline. The earliest standard can be effective is still January 2015, but may be later. Re-evaluate measure if code is enacted. ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Induction Lamp Replacement

Where:


1,000 = Factor to convert watts to kilowatts Hours = Annual lighting operating hours from the application = See Table 282 NUnits = Number of high-efficiency metal halide fixtures installed

ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Induction Lamp Replacement

Where:

Annual kWh = Annual kWh savings from metal halide lamp replacement = Calculated CF = Peak Coincidence Factor = See Table 283


249


Table 281. Baseline and Efficient Wattages of Induction Lamps

Measure: Induction Rated Wattage

Measure Category: Induction Watts Range

Fixture Wattage WBase Fixture Wattage WEff

200 180<W≤250 458 204

165 75<W≤180 397 168

120 75<W≤180 295 122

85 75<W≤180 215 87

70 W≤75 190 72

55 W≤75 128 56

40 W≤75 95 41

Average Wattage High Bin 180<W≤250 458 204

Average Wattage Medium Bin 75<W≤180 302 126

Average Wattage Low Bin W≤75 138 56







Commercial



All Commercial

Exterior Lighting

5,211 5,126 3,824 3,310 6,000 4,500 3,806 4,000


End Use






Commercial



All Commercial

Lighting 0.00015799 0.00014871 0.00023078 0.00019620 0.00013081 0.00013081 0.00020796

VARIABLE SOURCES:

Table 284. Induction Lamp Replacement Algorithm Sources



WBase : Metal halide HID fixture wattage, based on SCE 2013-2014 Table of Standard Fixture Wattages and Sample Lighting Table, Appendix B: http://www.aesc-inc.com/download/spc/2013SPCDocs/PGE/App%20B%20Standard%20Fixture%20Watts.pdf; and reference to Building a Brighter Future: Your Guide to EISA-Compliant Ballast and Lamp Solutions from Philips Lighting: http://1000bulbs.com/pdf/advance%20eisa%20brochure.pdf

WEff : Based on efficient lamp wattage entered from application form or use average wattage bins for default.





250








251

Lighting: LED Refrigerator Case Light

Measure Description

-Reduction in power consumption using linear LED light fixture. -Reduction in cooling load and thereby reduced power consumption by the compressor due to the reduction in the amount of heat added to the refrigerator by the light.

Fuel Electric

End Use Commercial

Baseline Equipment Refrigerator case T8 and T12 linear fluorescent lights.

Efficiency Qualification -Linear LED lights can have wattage ratings of 0<W≤7.5.


-Linear feet of lamps in refrigerator case light replaced.* -Case temperature (medium temperature = cooler; low temperature = freezer). -Lighting hours of use.




ANNUAL ENERGY SAVINGS ALGORITHM: Per Unit Electric Savings kWh—LED Refrigerator Case Light

Where:

∆kWLighting = Delta kW savings from baseline lamp wattage to LED wattage per foot

= See Table 285

HOU = Hours of use per day; number of hours of case-lighting from application

= 18*

∆kWRefrigeratio

n = Delta kW savings from the reduction in refrigeration load

required to cool per foot = See Table 286

365 = Days per year LnFt = Length of lamps in refrigerator case light replaced, in linear ft.

*Use provided default value only if value is not available

ANNUAL ENERGY DEMAND ALGORITHM: Per Unit Electric Demand Savings Peak kW—LED Refrigerator Case Light

Where:

Annual kWh = Annual kWh savings from LED Refrigerator Case Light = Calculated CF = Peak Coincidence Factor = See Table 287


252


Table 285. Delta kW Lighting by Temperature Levels

Reach-in Case Temperature ∆kWLighting (Per Foot)

Low 0.0077

Medium 0.0077

Default 0.0077

Table 286. Delta kW Refrigeration by Temperature Levels

Reach-in Case Temperature ∆kWRefrigeration (Per Foot)

Low 0.0052

Medium 0.0029

Default 0.0036


End Use






Commercial



All Commercial

Lighting 0.00015799 0.00014871 0.00023078 0.00019620 0.00013081 0.00013081 0.00020796

Refrigeration 0.00014802 0.00014802 0.00014802 0.00014802 0.00013081 0.00013081 0.00014802

VARIABLE SOURCES:

Table 288. LED Refrigerator Case Light Algorithm Sources


∆kWLighting Assume T8 baseline and average LED wattage from Regional Technical Forum; Commercial: Grocery—Display Case LEDs (Reach-In Cases); http://rtf.nwcouncil.org/measures/measure.asp?id=104

HOU

From application or use default. Default: Regional Technical Forum; Commercial: Grocery—Display Case LEDs (Reach-In Cases): http://rtf.nwcouncil.org/measures/measure.asp?id=104

∆kWRefrigeration Assume T8 baseline and average LED wattage from Regional Technical Forum; Commercial: Grocery—Display Case LEDs (Reach-In Cases): http://rtf.nwcouncil.org/measures/measure.asp?id=104







253

Lighting: LED Exit Sign

Measure Description LED exit signs use low wattage of power and last over 50,000 hours, while CFL exit signs can use two to four times more power and have a shorter life.

Fuel Electric

End Use Lighting


Efficiency Qualification -Existing construction only. -Must replace incandescent or CFL exit sign. -Direct-install.







Where:


= 214


Where:




End Use






Commercial



All Commercial

Lighting 0.00015799 0.00014871 0.00023078 0.00019620 0.00013081 0.00013081 0.00020796


254

VARIABLE SOURCES:



ExitSignSavings







255

Lighting: LED and CFL Fixtures

Measure Description Installation of LED and CFL fixtures requiring less power than conventional incandescent, fluorescent, or HID fixtures.

Fuel Electric

End Use Commercial Lighting

Baseline Equipment Incandescent, fluorescent, or PSMH and MH HID technology lighting for given applications.


-ENERGY STAR-qualified CFL fixture or DesignLights Consortium qualified LED Fixture. -All ENERGY STAR categories. -Outdoor fixtures: outdoor pole/arm-mounted, bollards, parking garage, fuel pump canopy, landscape/accent, architectural flood and spot luminaires. -Indoor fixtures: wall-wash, track or mono-point directional, high-bay, low-bay, and high-bay aisle luminaires. -All categories mentioned previously with retrofit kits are eligible.


-Efficient fixture wattage. -Efficient fixture quantity. -Technology replaced by new fixture (incandescent, fluorescent or HID technology). -Hours of use or building type group. -Application type (exterior or interior).




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—LED and CFL Fixtures

Where:

WM = Wattage Multiplier to convert efficient to baseline wattage = See Table 291 WEff = Wattage of efficient fluorescent fixture

1,000 = Conversion factor from watts to kilowatts = 1,000 Hours = Annual lighting operating hours from the application = See Table 292 NUnits = Number of fixtures installed

ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—LED and CFL Fixtures

Where:

Annual kWh = Annual kWh savings from LED/CFL fixture = Calculated CF = Peak Coincidence Factor = See Table 3


256


Table 291. Wattage Multiplier for Different Baseline Fixtures

Measure Replaced Technology

WM—Incandescent WM—Fluorescent WM—HID

LED Fixtures 3.13 1.02 2.01

CFL Fixtures 3.13 1.02 2.01







Commercial



All Commercial

Exterior Lighting

5,211 5,126 3,824 3,310 6,000 4,500 3,806 4,000


End Use






Commercial



All Commercial

Lighting 0.00015799 0.00014871 0.00023078 0.00019620 0.00013081 0.00013081 0.00020796

VARIABLE SOURCES:

Table 294. LED/CFL Fixtures Algorithm Sources



-Incandescent wattage multiplier (WM), based on ENERGY STAR-qualified lamp product database. -Fluorescent WM based on Design Light Consortium product database. -HID WM based the Scotopic/Photopic (S/P) ratio analysis by Howard Lighting with reference to LBNL.

WEff Based on efficient lamp type and quantity entered from application form.


Entered from application form or use default values. Groups weighted by sales data from IPL reference to 2011 Assessment of Potential. Average of comparison table from CBECS 2003 Region 2-Division 4, CLEAResult Small Business IPL 2013 Assumptions, PA TRM 2013, MidAtlantic TRM 2013, Northwest Power Planning Council the 6th Plan, IN TRM 2013. Results rounded. Industrial hours assume 7-day per week/16-hour per day, based on Lawrence Berkeley National Laboratory: Emerging Energy-Efficient Industrial Technologies Report, 2000. Agriculture hours based on conversations with Dave Warrington at IPL and other references documents from IPL's pervious EEPs.




257

Lighting: LED and CFL Lamps

Measure Description Installation of LEDs and CFLs requiring less power than incandescent lamps.

Fuel Electric

End Use Commercial

Baseline Equipment Standard incandescent lamps; baseline wattages are based on EISA standards that take affect 1/1/14.

Efficiency Qualification -ENERGY STAR-qualified CFL or LED. -Efficient wattage ranges based on ENERGY STAR lamps qualified on or after 1/1/12.


-Efficient lamp wattage. -Efficient lamp quantity. -Hours of use or building type group. -Application type (exterior or interior).




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—LEDs and CFLs

Where:

WBase = Wattage of baseline incandescent lamp = See Table 295 WEff = Wattage of efficient LED/CFL

1,000 = Conversion factor from watts to kilowatts = 1,000 Hours = Annual lighting operating hours from the application = See Table 296 NUnits = Number of efficient lamps

ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—LEDs and CFLs

Where:

Annual kWh = Annual kWh savings from CFL/LED = Calculated CF = Peak Coincidence Factor = See Table 297


Table 295. Baseline Wattages for Varying CFL/LED Wattage Ranges

CFL/LED Wattage Range WBase

1-5 25

6-11 29

12-15 43

16-21 53

22-37 72

38-49 150

50-71 200


258







Commercial



All Commercial

Exterior Lighting

5,211 5,126 3,824 3,310 6,000 4,500 3,806 4,000


End Use






Commercial



All Commercial

Lighting 0.00015799 0.00014871 0.00023078 0.00019620 0.00013081 0.00013081 0.00020796

VARIABLE SOURCES:

Table 298. LEDs and CFLs Algorithm Sources



Analysis of ENERGY STAR-qualified product list, 9/12/13: http://www.energystar.gov/index.cfm?c=products.pr_find_es_products

WEff Entered from application form.


Entered from application form or use default values. Groups weighted by sales data from IPL reference to 2011 Assessment of Potential. Average of comparison table from CBECS 2003 Region 2-Division 4, CLEAResult Small Business IPL 2013 Assumptions, PA TRM 2013, MidAtlantic TRM 2013, Northwest Power Planning Council the 6th Plan, IN TRM 2013. Results rounded. Industrial hours assume 7-day per week/16-hour per day, based on Lawrence Berkeley National Laboratory: Emerging Energy-Efficient Industrial Technologies Report, 2000. Agriculture hours based on conversations with Dave Warrington at IPL and other references documents from IPL's pervious EEPs.



http://www.energystar.gov/index.cfm?c=products.pr_find_es_products


259

Lighting: Metal Halide Lamp Replacement

Measure Description Installation of metal halide miser lamps that require less power.

Fuel Electric



Efficiency Qualification -Must replace 400 watt lamp (or greater) with ≤ 360 watt miser lamp.* -Existing construction only.


-Efficient lamp wattage. -Efficient lamp quantity. -Replaced lamp quantity. -Building type.



Program Nonresidential Prescriptive Rebates Program * New standard will become effective January 1, 2015, but statutory deadline for the final rule was January 1, 2012. DOE missed the deadline. The earliest standard can be effective is still January 2015, but may be later. Re-evaluate measure if code is enacted.

ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Metal Halide Lamp Replacement

Where:

WBase = Wattage of baseline HID fixture = 458* 452*

WEff = Wattage of efficient HID fixture = 412 1,000 = Conversion factor from watts to kilowatts = 1,000 Hours = Annual lighting operating hours from the application = See Table 299

Nunits = Number of high-efficiency metal halide fixtures installed *After 1/1/2015

ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Metal Halide Lamp Replacement

Where:

Annual kWh = Annual kWh savings from efficient HID fixture = Calculated CF = Peak Coincidence Factor = See Table 300








Commercial



All Commercial

Exterior Lighting

5,211 5,126 3,824 3,310 6,000 4,500 3,806 4,000


260


End Use






Commercial



All Commercial

Lighting 0.00015799 0.00014871 0.00023078 0.00019620 0.00013081 0.00013081 0.00020796

VARIABLE SOURCES:

Table 301. Metal Halide Lamp Replacement Algorithm Sources


WBase

Metal halide HID fixture wattage, based on SCE 2013-2014 Table of Standard Fixture Wattages and Sample Lighting Table, Appendix B: http://www.aesc-inc.com/download/spc/2013SPCDocs/PGE/App%20B%20Standard%20Fixture%20Watts.pdf; and reference to Building a Brighter Future: Your Guide to EISA-Compliant Ballast and Lamp Solutions from Philips Lighting: http://1000bulbs.com/pdf/advance%20eisa%20brochure.pdf

WEff Based on efficient lamp wattage entered from application form.


Entered from application form or use default values. Groups weighted by sales data from IPL reference to 2011 Assessment of Potential. Average of comparison table from CBECS 2003 Region 2-Division 4, CLEAResult Small Business IPL 2013 Assumptions, PA TRM 2013, MidAtlantic TRM 2013, Northwest Power Planning Council, the 6th Plan, IN TRM 2013. Results rounded. Industrial hours assume 7-day per week/16-hour per day, based on Lawrence Berkeley National Laboratory: Emerging Energy-Efficient Industrial Technologies Report, 2000. Agriculture hours based on conversations with Dave Warrington at IPL and other references documents from IPL's pervious EEPs.








261

Lighting: Occupancy Sensor

Measure Description Savings captured through the installation of an occupancy sensor for lighting fixtures to limit light usage to times when people occupy the area.

Fuel Electric

End Use Lighting

Baseline Equipment Lighting system with a manual on/off toggle switch, without an occupancy sensor installed.

Efficiency Qualification -Controlling a minimum of 45 watts of lighting. -Wall-switch, fixture-mounted, remote-mounted control.


-Total wattage controlled by occupancy sensor. -Hours of use or building type group.




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Occupancy Sensor

Where:

WTotalControlled = Total wattage of lighting controlled by all occupancy sensors 1,000 = Conversion factor from watts to kilowatts = 1,000

SF = Savings Factor = 24% Hours = Annual lighting operating hours = See Table 302*

Use provided default value only if actual value is not available. ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Occupancy Sensor

Where:

CF = Peak Coincidence Factor = See

Table 303 ALGORITHM VARIABLES:

Table 302. Default Annual Lighting Operating Hours






Commercial



5,211 5,126 3,824 3,310 6,000 4,500 3,806


262


End Use






Commercial



All Commercial

Other Plug Load

0.00015799 0.00014871 0.00023078 0.00019620 0.00013081 0.00013081 0.00020796

VARIABLE SOURCES:

Table 304. Occupancy Sensor Algorithm Sources


WTotalControlled Entered from application form.

SF

LBNL study of secondary sources: 240 savings estimates from 88 papers and case studies. Williams, A., Atkinson, B., Garbesi K. and Rubinstein, F. "A Meta-Analysis of Energy Savings from Lighting Controls in Commercial Buildings." LBNL, September 2011, document LBNL-5095E.

Hours

Entered from application form; default value obtained from groups, weighted by sales data from IPL reference to 2011 Assessment of Potential. Average of comparison table from CBECS 2003 Region 2-Division 4, CLEAResult Small Business IPL 2013 Assumptions, PA TRM 2013, MidAtlantic TRM 2013, Northwest Power Planning Council the 6th Plan, IN TRM 2013. Results rounded. Industrial hours assume 7-day per week/16-hour per day, based on Lawrence Berkeley National Laboratory: Emerging Energy-Efficient Industrial Technologies Report, 2000. Agriculture hours based on conversations with Dave Warrington at IPL and other references documents from IPL's pervious EEPs.

Table 302. Default Annual Lighting Operating Hours

ENERGY STAR Office Equipment Savings Calculator; calculator version last updated December 2010: http://www.energystar.gov/ia/products/fap//Calc_office_eq.xls

Table 303. Peak

Coincidence Factor


http://www.energystar.gov/ia/products/fap/Calc_office_eq.xls


263

Lighting: Time Clocks and Timers for Lighting

Measure Description

-Savings captured by installing time clock controls to turn lights on and off at given times. -Typically, time clocks control exterior lights used at night. -Exterior lights turned off manually during work-week daylight hours by workers, but, during weekend daylight hours, they are left on without a time clock. -A time clock serves to automatically shut the lights off during weekend daylight hours, saving approximately 24 hours of usage per weekend.

Fuel Electric

End Use Lighting

Baseline Equipment Manual switching of light, without time clock controls.

Efficiency Qualification -Commercial grade time clock to control light usage, installed as a retrofit. -Minimum 45 watts controlled.


-Total wattage controlled by time clock. -Annual operating hours of lamps before timer controls installed. -Annual hours spent in “on” mode of lamps controlled with timer controls.




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Time Clock Controls

Where: = Total wattage of Lighting Controlled by Time Clock

= Total annual operating hours of lamps without timer controls Annual hours spent in On mode of lamps controlled with timer

controls. = 1,248*

1,000 = Factor to convert watts to kilowatts = Number of time clocks installed

*Use provided default value only if the actual value is not available. ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Time Clock Controls

Where:

CF = Peak Coincidence Factor = 0


264

VARIABLE SOURCES:

Table 305. Time Clocks and Timers for Lighting Algorithm Sources


Wcontrolled Entered from application form.

OPHRSTotal Entered from application form.

OPHRSTimeClockHours Entered from application form; default value based on DEER Update Study for SCE, p. 65 (report p. 3-13): http://www.calmac.org/publications/2004-05_DEER_Update_Final_Report-Wo.pdf

CF The savings time period is on the weekend, and therefore does not overlap with the peak time.

http://www.calmac.org/publications/2004-05_DEER_Update_Final_Report-Wo.pdf



265

Lighting: Traffic Lights

Measure Description LED traffic signals typically use 80% to 90% less energy than incandescent bulbs. In addition, the life expectancy of LED traffic signal lamps can reduce maintenance costs over incandescent technologies.

Fuel Electric

End Use Lighting

Baseline Equipment Standard traffic signal lights.

Efficiency Qualification LED fixture.


-Number of units. -Traffic light use type.




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—LED Traffic Lights

Where: TrafficLightSavings = Total wattage of Lighting Controlled by Time Clock = See Table 306

Units = Number of units ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—LED Traffic Lights

Where:



Table 306. Annual Savings from LED Traffic Light

Traffic Light Use Type TrafficLightSavings [kWh]

12" Green Arrow 115

10" Green Arrow 85

8" Green Arrow 55

12" Green Ball 441

10" Green Ball 325

8" Green Ball 209

12" Red Ball 598

10" Red Ball 446

8" Red Ball 294

Don't Walk 12" Lamp 1,070

Don't Walk 8" Lamp 922


266

VARIABLE SOURCES:

Table 307. LED Traffic Light Algorithm Sources



Table 306. Annual Savings from LED Traffic Light

Inferred from Minnesota Department of Commerce: mn.gov/commerce/energy/images/LEDTrafficSignals.xls

CF Assume 1/8760; 8760 = number of hours in a year.


267

Lighting: T8 or T12 Delamping

Measure Description Removing unnecessary light bulbs or fixtures in areas producing greater-than-needed illumination.

Fuel Electric


Baseline Equipment T8 standard baseline, regardless of existing bulbs, to account for EISA.


-Permanent lamp removal can be claimed if the completed project results in a net reduction in the quantity of lamps. -De-lamping requires removal of lamps/ballasts and unused lampholders from existing fixtures without replacing the lamps.


-Linear feet of bulbs delamped.

Market Opportunity Removal; Retrofit



ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—T8 or T12 Delamping

Where:

WRemoved = Removed wattage per linear foot of lighting delamped = 7.2 1,000 = Conversion factor from watts to kilowatts = 1,000 HOU = Annual lighting operating hours from the application = See Table 408

LF = Linear feet of bulbs removed ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings kW—T8 or T12 Delamping

Where:

Annual kWh = Annual kWh savings from T8/T12 delamping = Calculated CF = Peak Coincidence Factor = See Table 409








Commercial



All Commercial

Exterior Lighting

5,211 5,126 3,824 3,310 6,000 4,500 3,806 4,000


268


End Use






Commercial



All Commercial

Lighting 0.00015799 0.00014871 0.00023078 0.00019620 0.00013081 0.00013081 0.00020796

VARIABLE SOURCES:

Table 310. T8/T12 Delamping Algorithm Sources


WRemoved Based on T8 standard wattage from engineering determination drawn from SCE 2013-2014 Table of Standard Fixture Wattages and Sample Lighting Table, Appendix B: http://www.aesc-inc.com/download/spc/2013SPCDocs/PGE/App%20B%20Standard%20Fixture%20Watts.pdf

LF Entered from application form.


Entered from application form or using default values. Groups weighted by sales data from IPL reference to 2011 Assessment of Potential. Average of comparison table from CBECS 2003 Region 2-Division 4, CLEAResult Small Business IPL 2013 Assumptions, PA TRM 2013, MidAtlantic TRM 2013, Northwest Power Planning Council the 6th Plan, IN TRM 2013. Results rounded. Industrial hours assume 7-day per week/16-hour per day, based on Lawrence Berkeley National Laboratory: Emerging Energy-Efficient Industrial Technologies Report, 2000. Agriculture hours based on conversations with Dave Warrington at IPL and other references documents from IPL's pervious EEPs.






269

Motor: Enhanced Motor (Ultra-PE)

Measure Description

CEE premium-efficiency motors prove more efficient than standard National Electrical Manufacturers Association (NEMA) efficiency motors. This measure specifically relates to HVAC motors and pumps, ranging from 1 horsepower (hp) to 350 hp. CEE motor nominal efficiencies are higher than the NEMA federal minimum efficiency levels that became effective in December 2010. Units greater than 350 hp use the custom program.

Fuel Electric

End Use Agriculture

Baseline Equipment Standard NEMA efficiency motor.


-Enhanced (Ultra-PE) Motors ≥1 and ≤15 hp, 1,200–3,600 revolutions per minute (RPM). -Enhanced (Ultra-PE) Motors ≥20 and ≤40 hp, 1,200–3,600 RPM. -Enhanced (Ultra-PE) Motors ≥50 and ≤100 hp, 1,200–3,600 RPM. -Enhanced (Ultra-PE) Motors ≥125 and ≤200 hp, 1,200–3,600 RPM. -Enhanced (Ultra-PE) Motors ≥250 and ≤350 hp, 1,200–36,00 RPM. -See efficiency requirements from Table 1. -Greater than 350 hp use custom program.


-Number of units. -Motor hp. -Motor speed (RPM). -Motor type (open drip proof, totally enclosed fan).




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Enhanced Motor (Ultra-PE)

Where: MotorBase = Efficiency rating of standard baseline motor = See Table 311

MotorEff = Efficiency rating of new high-efficiency (CEE) motor = See Table 311 HP = Horsepower of new high-efficiency motor = (1 to 350)

0.746 = Conversion factor from horsepower to kW = 0.746 LF = Loading Factor = 0.75*

HOU = Annual operating hours, depending on hp size = See Table 312

Nunits = Number of units *Use provided default value only if value is not available. ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Enhanced Motor (Ultra-PE)


270


271

Where: CF = Agriculture Peak Coincidence Factor = See Table 313


Table 311. Motor Efficiency Base Percent and Minimum EFF Percent

Open Drip Proof (ODP) Totally Enclosed Fan Cooled (TEFC)

Horsepower Speed (RPM)

BASE Efficiency (%) NEMA 2010

Standard

IPL EFF Minimum

Efficiency (%)


Standard

IPL EFF Minimum

Efficiency (%)

1 3,600 77.0% 84.0% 77.0% 84.0%

1,800 85.5% 86.5% 85.5% 86.5%

1,200 82.5% 84.0% 82.5% 84.0%

1.5 3,600 84.0% 85.5% 84.0% 85.5%

1.5 1,800 86.5% 87.5% 86.5% 87.5%

1.5 1,200 86.5% 87.5% 87.5% 88.5%

2 3,600 85.5% 86.5% 85.5% 86.5%

1,800 86.5% 87.5% 86.5% 87.5%

1,200 87.5% 88.5% 88.5% 89.5%

3 3,600 85.5% 86.5% 86.0% 87.5%

3 1,800 89.5% 90.2% 89.5% 90.2%

3 1,200 88.5% 89.5% 89.5% 90.2%

5 3,600 86.5% 89.5% 88.5% 89.5%

1,800 89.5% 90.2% 89.5% 90.2%

1,200 89.5% 90.2% 89.5% 90.2%

7.5 3,600 88.5% 89.5% 89.5% 90.2%

7.5 1,800 91.0% 91.7% 91.7% 92.4%

7.5 1,200 90.2% 91.7% 91.0% 91.7%

10 3,600 89.5% 90.2% 90.2% 91.0%

1,800 91.7% 92.4% 91.7% 92.4%

1,200 91.7% 92.4% 91.0% 91.7%

15 3,600 90.2% 91.0% 91.0% 91.7%

15 1,800 93.0% 93.6% 92.4% 93.0%

15 1,200 91.7% 92.4% 91.7% 92.4%

20 3,600 91.0% 91.7% 91.0% 92.4%

1,800 93.0% 93.6% 93.0% 93.6%

1,200 92.4% 93.0% 91.7% 92.4%

25 3,600 91.7% 93.0% 91.7% 92.4%

25 1,800 93.6% 94.1% 93.6% 94.5%

25 1,200 93.0% 93.6% 93.0% 94.1%

30 3,600 91.7% 92.4% 91.7% 92.4%

1,800 94.1% 94.6% 93.6% 94.1%

1,200 93.6% 94.1% 93.0% 93.6%

40 3,600 92.4% 93.0% 92.4% 93.0%

40 1,800 94.1% 94.5% 94.1% 94.5%

40 1,200 94.1% 94.5% 94.1% 94.5%

50 3,600 93.0% 93.6% 93.0% 93.6%

1,800 94.5% 95.0% 94.5% 95.0%

1,200 94.1% 94.5% 94.1% 94.5%

60 3,600 93.6% 94.1% 93.6% 94.1%


272

Open Drip Proof (ODP) Totally Enclosed Fan Cooled (TEFC)



Standard

IPL EFF Minimum

Efficiency (%)


Standard

IPL EFF Minimum

Efficiency (%)

60 1,800 95.0% 95.4% 95.0% 95.8%

60 1,200 94.5% 95.0% 94.5% 95.0%

75 3,600 93.6% 94.1% 93.6% 94.5%

1,800 95.0% 95.4% 95.4% 95.8%

1,200 94.5% 95.0% 94.5% 95.0%

100 3,600 93.6% 94.5% 94.1% 94.5%

100 1,800 95.4% 95.8% 95.4% 95.8%

100 1,200 95.0% 95.4% 95.0% 95.4%

125 3,600 94.1% 94.5% 95.0% 95.4%

1,800 95.4% 95.8% 95.4% 95.8%

1,200 95.0% 95.4% 95.0% 95.4%

150 3,600 94.1% 94.5% 95.0% 95.8%

150 1,800 95.8% 96.2% 95.8% 96.2%

150 1,200 95.4% 95.8% 95.8% 96.2%

200 3,600 95.0% 95.4% 95.4% 95.8%

1,800 95.8% 96.2% 96.2% 96.5%

1,200 95.4% 95.8% 95.8% 96.2%

250 3,600 94.5% 95.0% 95.4% 95.8%

250 1,800 95.4% 95.8% 95.0% 96.2%

250 1,200 95.4% 95.4% 95.0% 95.8%

300 3,600 95.0% 95.4% 95.4% 95.8%

1,800 95.4% 95.8% 95.4% 96.2%

1,200 95.4% 95.4% 95.0% 95.8%

350 3,600 95.0% 95.4% 95.4% 95.8%

350 1,800 95.4% 95.8% 95.4% 96.2%

350 1,200 95.4% 95.4% 95.0% 95.8%

400 3,600 95.4% 95.8% 95.4% 95.8%

1,800 95.4% 95.8% 95.4% 96.2%

1,200 95.8% 95.8%

450 3,600 95.8% 95.8% 95.4% 95.8%

450 1,800 95.8% 96.2% 95.4% 96.2%

450 1,200 96.2% 95.8%

500 3,600 95.8% 95.8% 95.4% 95.8%

1,800 95.8% 96.2% 95.8% 96.2%

1,200 96.2% 95.8%

Table 312. Mean Annual Operating Hours of Enhanced Motors

Unit hp Range Mean Annual HOU

1-5 2,745

6-20 3,391

21-50 4,067

51-100 5,329

101-200 5,200

201-350 6,132


273


End Use






Commercial



All Commercial

HVAC Aux 0.0001404 0.0002287 0.0001829 0.0001905 0.0001308 0.0001308 0.0001797

VARIABLE SOURCES:

Table 314. Enhanced Motor (Ultra-PE) Algorithm Sources


Table 314. Enhanced Motor (Ultra-PE) Algorithm Sources

Full-load efficiencies for NEMA Standard Premium Efficiency Motors (EISA Standard, effective Dec. 2010). 1-200 hp Full-load efficiencies for NEMA Energy Policy Act (EPAct) Energy-Efficient motors. 250-500; EPAct 2005 requires all federal motor purchases to meet Federal Energy Management Program (FEMP)-designated performance requirements. FEMP has adopted requirements that are equivalent to these NEMA Premium specification levels.

MotorEff Entered from application form.

HP Entered from application form.

LF 2008 Assessment of Potential (Ratio between the actual load and the rated load. Motor efficiency curves typically result in motors being most efficient at approximately 75% of the rated load. The default value is 0.75. PA 2013 TRM.)

HOU United States Industrial Electric Motor Systems Mark Opportunities Assessment (p. 66), December 2012: http://www1.eere.energy.gov/manufacturing/tech_assistance/pdfs/mtrmkt.pdf


http://www1.eere.energy.gov/manufacturing/tech_assistance/pdfs/mtrmkt.pdf


274

Motor: Variable-Frequency Drives

Measure Description

Variable-speed controls allow pump and fan motors to operate at lower speeds, while still maintaining setpoints during partial load conditions. Energy reduces when motor operation varies with the load rather than runs at a constant speed.

Fuel Electric

End Use Motor

Baseline Equipment A fan or pump motor with a hp of 5 to 200 hp.

Efficiency Qualification Application for motors 5 to 200 hp.


-Number of units. -Motor hp. -Motor speed (RPM). -Motor type (open drip proof or totally enclosed fan). -Motor efficiency (EFFmotor). -Application type (fan or pump).



Program Commercial Prescriptive Program

ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Variable Frequency Drive (VFD)

Where: HP = Horsepower of new or existing high-efficiency motor = (1 to 500)

EffMotor = Efficiency rating of motor being controlled by VFD = (50.0% to 98.0%) 0.746 = Conversion from horsepower to kW = 0.746

LF = Loading Factor = 0.75* SF = Savings Factor, depending on application type = Fan: 0.2129

Pump: 0.4175 Other: 0.1252

EFFVSD = Efficiency rating of VFD = 0.95 HOU = Annual operating hours, depending on hp size = See Table 315 Nunits = Number of units

*Use provided default value only if value is not available. ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Variable Frequency Drive (VFD)

Where:

DSF = Demand Savings Factor, depending on application type =

Fan: 0.1387 Pump: 0.1495 Other: 0


275


Table 315. Mean Annual Operating Hours of VFD


1-5 2,745

6-20 3,391

21-50 4,067

51-100 5,329

101-200 5,200


End Use






Commercial



HVAC Aux 0.0001404 0.0002287 0.0001829 0.0001905 0.0001308 0.0001308 0.0001797

VARIABLE SOURCES:

Table 317. Variable Frequency Drive Algorithm Sources



EFFmotor Entered from application form or use default table below: TABLE: Motor Efficiency Base %

LF Ratio between the actual load and the rated load. Motor efficiency curves typically result in motors operating most efficiently at approximately 75% of the rated load. The default value is 0.75. PA 2013 TRM.

SF/DSF

Averaged VFD savings, based on application type. Percentages based on analysis derived using a temperature BIN spreadsheet and typical heating, cooling, and fan load profiles. Analysis by UI and CL&P Program Savings Documentation for 2012 and 2011 Program Year, United Illuminating Company, September 2011.

EFFVSD Variable speed drive conversion efficiency can from 90.0% to 99.0%, assume an average efficiency of 95%.





276

Office: Computer

Measure Description Savings captured by replacing a standard computer with an ENERGY STAR computer.

Fuel Electric

End Use Office

Baseline Equipment Standard computer.

Efficiency Qualification ENERGY STAR-qualified computer.


-Equipment type (desktop/integrated computer, notebook, thin clients, qualified servers-single configurations, qualified servers-families, or PC network management software) with model number to confirm ENERGY STAR. -Number of units.

Market Opportunity Early Replacement; Replacement on Burnout



ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Computer

Where:

ComputerSavings = Annual kWh savings per equipment = See Table 318 Units = Number of units

ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Computer

Where: CF = Peak Coincidence Factor = See


Table 318. Annual kWh Savings per Computer

Equipment Type kWh Savings

Desktops and Integrated Computers 133

Thin Clients 346


277


End Use






Commercial



All Commercial

Other Plug Load

0.00016134 0.00015053 0.00016134 0.00016134 0.00013081 0.00013081 0.00016134

VARIABLE SOURCES:

Table 320. ENERGY STAR Computer Algorithm Sources



Table 318. Annual kWh Savings per Computer

ENERGY STAR Office Equipment Savings Calculator: Calculator version last updated December 2010: http://www.energystar.gov/ia/products/fap//Calc_office_eq.xls

Table 319. Peak

Coincidence Factor


http://www.energystar.gov/ia/products/fap/Calc_office_eq.xls


278

Office: Network Computer Management

Measure Description Network computer power management automatically places computers into a low-power "sleep mode" after a period of inactivity. Simply touching the mouse or keyboard "wakes" the computer in seconds.

Fuel Electric

End Use Office

Baseline Equipment Computers not controlled by network computer power management system.


-Must provide energy savings estimate generated by the software or another assessment tool. -Network system must control a minimum of 10 units. -Installation must allow centralized, server-level control of the power management settings (sleep mode and shutdown) of the desktop computers on a distributed network. -Must include a copy of the report from the network management software verifying the number of PCs controlled by the software and the number of computers authorized per license.


-Number of units, by equipment type. -Number of ENERGY STAR-qualified units, by equipment type.




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Network Energy Management

Where: NetworkUnitSavings = Per-unit energy savings per computer controlled by the

network management system = See Table 321

Units = Number of units controlled by the network energy management system

ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Network Energy Management

Where:


Table 321. kWh Savings from Computer Controlled by Network Management System

Equipment Type kWh Savings

Desktop Computers 233

Notebook Computers1 12


279


End Use






Commercial



All Commercial

Other Plug Load

0.00016134 0.00015053 0.00016134 0.00016134 0.00013081 0.00013081 0.00016134

VARIABLE SOURCES:

Table 323. Network Computer Management Algorithm Sources



Table 321. kWh Savings from Computer Controlled by Network Management System

ENERGY STAR Document “LowCarbonITSavingsCalc”: http://www.energystar.gov/ia/products/power_mgt/LowCarbonITSavingsCalc.xlsx



http://www.energystar.gov/ia/products/power_mgt/LowCarbonITSavingsCalc.xlsx


280

Office: Server

Measure Description

Standard computer servers consume 1,200 to 8,600 kWh annually. Companies purchasing ENERGY STAR-qualified servers could save as much as 1,000 kWh per server. Computer servers earning the ENERGY STAR label, on average, are 30% more energy efficient than standard servers.

Fuel Electric

End Use Office

Baseline Equipment Standard computer server.

Efficiency Qualification ENERGY STAR-qualified.


-ENERGY STAR model number. -Number of units.




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—ENERGY STAR Server

Where: ServerSavings = Annual server unit ENERGY savings by category = See Table 324

Units = Number of servers ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—ENERGY STAR Server

Where: CF = Peak Coincidence Factor = See


Table 324. kWh Savings from ENERGY STAR Servers

ENERGY STAR Category Number of Processors Service Processor Installed? kWh Savings

A 1 No 136

B 1 Yes 1,004

C 2 No 416

D 2 Yes 1,097


281


End Use






Commercial



All Commercial

Other Plug Load

0.00016134 0.00015053 0.00016134 0.00016134 0.00013081 0.00013081 0.00016134

VARIABLE SOURCES:

Table 326. ENERGY STAR Servers Algorithm Sources



Table 324. kWh Savings from ENERGY STAR Servers

Savings are based on the Version 2, ENERGY STAR Product Specifications for Computer Servers (Revised Sep. 2013; Effective Dec. 16, 2013).

Table 325. Peak

Coincidence Factor



282

Pool: Pool/Spa Cover

Measure Description Using a pool cover can reduce year-round outdoor pool energy consumption by roughly 8%. Savings result from reduced evaporation and increased insulation on the water's surface.

Fuel Gas

End Use Pool

Baseline Equipment Outdoor pools/spas with no cover.


-Pool Cover: Minimum R-value of 1.5. -Spa Cover: Minimum R-value of 14. -If indoor application, move to custom to account for HVAC interactions of the specific project.


-Pool or spa cover size (in ft2).

-Seasons that the pool/spa is heated.




ANNUAL ENERGY SAVINGS ALGORITHM: Natural Gas Savings Therms—Pool Cover

Where: Savings = Deemed savings factor based on the area of the pool cover

and the seasons used = See Table 327

Season = Seasons the pool is heated = Summer only* Sqft = Pool surface area in ft2 = (50 to 10,000)

1,000* Unit = Number of rebated units

*Use default value only if actual value is not available. Natural Gas Savings Therms—Spa Cover

Where:

Savings = Deemed savings factor based on the area of the spa cover and the seasons used

= See Table 327

Season = Seasons the spa is heated = Year-round* Sqft = Spa surface area in ft2 = (40 to 200)

120* Unit = Number of rebated units

*Use default value only if actual value is not available.


283

ANNUAL ENERGY DEMAND ALGORITHM: Natural Gas Demand Savings Annual Peak Therms/hr—Pool/Spa Cover

Where:


Table 327. Per Square Foot Therms Savings from Pool/Spa Covers

Season Pool Savings [Therms/ft

2]

Spa Savings [Therms/ft

2]

Spring 0.37 0.13

Summer 0.21 0.10

Fall 0.77 0.22

Winter 0.92 0.24

Year-round 2.27 0.70


End Use






Commercial



All Commercial

Water Heat 0.00068510 0.00176813 0.00068952 0.00057778 - - 0.00068206

VARIABLE SOURCES:

Table 329. Pool/Spa Cover Algorithm Sources




Table 327. Per Square Foot Therms Savings from Pool/Spa Covers

Assume Spa Operation Temperature assumed at 95 F; extrapolated from U.S. DOE: http://energy.gov/energysaver/articles/gas-swimming-pool-heaters



http://energy.gov/energysaver/articles/gas-swimming-pool-heaters


284

Refrigeration: Anti-Sweat Heating Controls

Measure Description

Anti-sweat heater (ASH) controls sense the humidity in the store outside of reach-in, glass door refrigerated cases, and turn off anti-sweat heaters during periods of low humidity. Without controls, anti-sweat heaters run continuously, whether they are necessary or not. Savings result from the reduction in energy used by not having the heaters running at all times. In addition, secondary savings result from reduced cooling loads on the refrigeration unit when the heaters are off. The ASH control is applicable to glass doors with heaters.

Fuel Gas


Baseline Equipment Anti-sweat heaters with no controller installed.

Efficiency Qualification Anti-sweat heater equipped with controls.


-Temperature of the display cases: freezer (low) and cooler (medium) temperature. -Length of the display case, in linear feet.




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Anti-Sweat Heating Controls

Where: SavingsLinearFt = Annual savings per linear foot of display case = See Table 330

LinearFt = Length of the case, in linear ft. ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Anti-Sweat Heating Controls

Where:

Annual kWh = Annual kWh savings from anti-sweat heating controls = Calculated CF = Peak Coincidence Factor = See Table 331


Table 330. kWh Savings per Foot for Anti-Sweat Heating Controls

Display Case Temperature [°F] Savings [kWh/ft/yr]

Cooler: Medium (0 to 30) 409

Freezer: Low (-35 to -5) 753


285


End Use






Commercial



All Commercial

Cooking 0.00307372 0.00293772 0.00345493 0.00052694 - - 0.00259005

VARIABLE SOURCES:

Table 332. Anti-Sweat Heating Controls Algorithm Sources


LinearFt Entered from application form.

Table 330. kWh Savings per Foot for Anti-Sweat Heating Contro

Temperature of the display cases: freezer (low) and cooler (medium) temperature entered from application form; savings based on PA 2013 TRM, with reference to WI 2010 TRM.




286

Refrigeration: ECM on Display Case Evaporator Fans

Measure Description

ECMs are installed on grocery display case evaporator fans in place of shaded pole (SP) or permanent split capacitor (PSC) motors, capturing direct savings from reductions in evaporator fan power and indirect savings from refrigeration systems.

Fuel Electric


Baseline Equipment SP or PSC motor

Efficiency Qualification The new ECM must operate more efficiently than the previously existing SP or PSC motor.


-Output power rating of the motor for display case, in watts or hp. -Temperature of the display cases: freezer (low) and cooler (medium) temperature. -Existing motor type: SP or PSC motor.




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—ECM on Display Case Evaporator Fans

Where:

ECMCaseSavings = Annual per motor kWh savings, direct and indirect combined, from motor replacement

= See Table 333

NumMotors = Number of motors replaced ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—ECM on Display Case Evaporator Fans

Where:

Annual kWh = Annual kWh savings from ECM on display case evaporator fans

= Calculated



287


Table 333. Annual Per ECM Motor kWh Savings

SP to ECM PSC to ECM

Motor Output [Watts]

Cooler Annual kWh Savings

[kWh/motor/yr]

Freezer Annual kWh Savings

[kWh/motor/yr]


[kWh/motor/yr]


[kWh/motor/yr]

1-14 439.3 491.3 100.5 112.3

16-23 764.9 855.4 217.7 243.4

1/20 hp (~37 Watts)

1,042.0 1,165.3 413.0 461.9


End Use






Commercial



All Commercial

Refrigeration 0.00014802 0.00014802 0.00014802 0.00014802 0.00013081 0.00013081 0.00014802

VARIABLE SOURCES:

Table 335. ECM on Display Case Evaporator Fans Algorithm Sources


NumMotors Entered from application form.

Table 333. Annual Per ECM

Motor kWh Savings RTF UES Measures and Supporting Documentation: Grocery—ECMs for Display Cases v.2.2.




288

Refrigeration: High-Efficiency Evaporator Fan Walk-Ins

Measure Description ECMs are installed on walk-in evaporator fans in place of SP or PSC motors. Savings are captured by direct savings from reduction in evaporator fan power and indirect savings from refrigeration systems.

Fuel Electric


Baseline Equipment SP or PSC motor.

Efficiency Qualification The new ECM must be more efficient than the previously existing SP or PSC motor.


-Output power rating of the motor for display case, in watts or hp. -Temperature of the walk-in: freezer (low) and cooler (medium) temperature. -Existing motor type: SP or PSC motor.



Program Commercial Prescriptive Program

ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—High-Efficiency Evaporator Fan Walk-Ins

Where:

ECMCaseSavings = Annual per motor kWh savings, direct and indirect combined, from motor replacement

= See Table 336

NumMotors = Number of motors replaced ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—High-Efficiency Evaporator Fan Walk-Ins

Where:

Annual kWh = Annual kWh savings from ECM walk-ins = Calculated CF = Peak Coincidence Factor = See Table 337


289


Table 336. Annual Per Motor kWh Savings

SP to ECM PSC to ECM

Motor Output [Watts]


[kWh/motor/yr]


[kWh/motor/yr]


[kWh/motor/yr]


[kWh/motor/yr]

1/40 hp (16-23 watts)

660.5 790.4 188.7 225.8

1/20 hp (~37 watts)

901.7 1078.9 356.5 426.6

1/15 hp (~49 watts)

1,216.2 1,455.3 471.8 564.6


End Use






Commercial



All Commercial

Refrigeration 0.00014802 0.00014802 0.00014802 0.00014802 0.00013081 0.00013081 0.00014802

VARIABLE SOURCES:

Table 338. High-Efficiency Evaporator Fan Walk-Ins Algorithm Sources



Table 336. Annual Per Motor kWh Savings

Engineering calculation based on: RTF as part of the Northwest Power & Conservation Council, Deemed Measures List. Grocery Display Case ECM, FY2010, V2. Accessed from RTF website on July 30, 2010: http://www.nwcouncil.org/rtf/measures/Default.asp



http://www.nwcouncil.org/rtf/measures/Default.asp


290

Refrigeration: Walk-In Evaporator Fan Controller

Measure Description

Installing an evaporator fan controller to a walk-in fan motor allows operations at variable speeds. With a controller installed, an evaporator fan operates at full speed or low speed; in-low speed operation, energy use is reduced.

Fuel Electric


Baseline Equipment Evaporator fan without a controller installed to allow variable fan speeds.

Efficiency Qualification -Must install an evaporator fan controller that allows variable fan speeds (variable set points) on a walk-in fan motor. -Fan motor should be either SP or ECM.


-Motor type (SP or ECM). -Motor power rating (in hp or watts); if not known, use default. -Refrigerator temperature: freezer (low) and cooler (medium) temperature. -Number of units.




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Walk-In Evaporator Fan Controller

Where: FanControllerSavings = kWh savings per-fan controller installation = See Table 339

NumMotors = Number of motors ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Walk-In Evaporator Fan Controller

Where:

Annual kWh = Annual kWh savings from a walk-in evaporator fan controller = Calculated CF = Peak Coincidence Factor = See Table 340


Table 339. Annual kWh Savings per Fan Controller

Motor Type Motor Output [Watts] Walk-In Temperature Energy Savings [kWh]

ECM 1/10-1/20 hp (37.3-74.6 W) Medium 194

ECM 1/10-1/20 hp (37.3-74.6 W) Low 131

ECM 1/40 hp (16-23 watts) Medium 76

ECM 1/40 hp (16-23 watts) Low 51

SP 1/10-1/20 hp (37.3-74.6 W) Medium 484

SP 1/10-1/20 hp (37.3-74.6 W) Low 326

SP 1/40 hp (16-23 watts) Medium 190


291

Motor Type Motor Output [Watts] Walk-In Temperature Energy Savings [kWh]

SP 1/40 hp (16-23 watts) Low 128

ECM Default Medium 135

ECM Default Low 91

SP Default Medium 337

SP Default Low 227


End Use






Commercial



All Commercial

Refrigeration 0.00014802 0.00014802 0.00014802 0.00014802 0.00013081 0.00013081 0.00014802

VARIABLE SOURCES:

Table 341. Walk-In Evaporator Fan Controller Algorithm Sources



Table 339. Annual kWh Savings per Fan Controller

Regional Technical Forum- Commercial: Grocery—Walk-In Evaporator Fan ECM Motor Controllers (http://rtf.nwcouncil.org/measures/measure.asp?id=111); Commercial: Grocery—Walk-In Evaporator Fan Shaded-Pole Motor Controllers (http://rtf.nwcouncil.org/measures/measure.asp?id=169)






292

Refrigeration: Glass Door Refrigerator/Freezer

Measure Description Replacement of a federal-standard, commercial-size, glass door refrigerator/freezer with an ENERGY STAR glass door refrigerator/freezer.

Fuel Electric


Baseline Equipment Federal-standard, commercial-size, glass door refrigerator/freezer.

Efficiency Qualification ENERGY STAR-qualified glass door refrigerator/freezer.


-Equipment size, in cubic feet. -Model number to confirm ENERGY STAR.




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Glass Door Refrigerator/Freezer

Where:

Volume = Equipment size, in cubic feet C1 = Constant 1 = See Table 342 C2 = Constant 2 = See Table 342

365 = Number of days in a year = 365 Unit = Number of units

ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Glass Door Refrigerator/Freezer

Where:

Annual kWh = Annual kWh savings from ENERGY STAR glass door refrigerator/freezer

= Calculated


Table 342. Constants Used for kWh Savings Calculation for ENERGY STAR Glass Door Refrigerators/Freezers

Equipment Type Equipment Size [Cu. Ft.] C1 C2

Glass Door Refrigerator

15<Volume≤30 0.1180 1.3820

30<Volume≤50 -0.0200 2.2900

50<Volume 0.0320 0.7150

Glass Door Freezer

0<Volume≤15 0.0100 1.8400

15<Volume≤30 0.1430 3.2070

30<Volume≤50 0.0170 5.1000

50<Volume 0.5000 -9.4000

( Volume+ )


293


End Use






Commercial



All Commercial

Refrigeration 0.00014802 0.00014802 0.00014802 0.00014802 0.00013081 0.00013081 0.00014802

VARIABLE SOURCES:

Table 344. ENERGY STAR Glass Door Refrigerator/Freezer Algorithm Sources



Table 342. Constants Used for kWh Savings Calculation for ENERGY STAR Glass Door Refrigerators/Freezers

Derived by taking the difference between the equivalent constants used for federal standards and for ENERGY STAR qualifications: Federal standard—Title 10 Part 431—Energy Efficiency Program for Certain Commercial and Industrial Equipment; Section 431.66; and ENERGY STAR Efficiency Criteria for Commercial Glass Door Refrigerators & Freezers: http://www.energystar.gov/index.cfm?c=commer_refrig.pr_crit_commercial_refrigerators



http://www.energystar.gov/index.cfm?c=commer_refrig.pr_crit_commercial_refrigerators



294

Refrigeration: Night Covers for Display Cases

Measure Description Installation of retractable aluminum woven fabric covers for open-type refrigerated display cases, with covers deployed during facility unoccupied hours.

Fuel Electric


Baseline Equipment Open-type refrigerated display case without night covers installed.

Efficiency Qualification ENERGY STAR-qualified glass door refrigerator/freezer.


-Width of the opening (of the display case) that the night covers cover, in ft. -Hours that night covers are in use. -Temperature of the display cases (low, medium, and high temperature).




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Night Covers for Display Cases

Where:

LinearFeet = Width of the opening protected by night cover, in feet SavingsRate = Kilowatts savings from installing a night cover per display case

temperature = See Table 345

HoursDay = Number of hours per day that the night covers are in use = 6* 365 = Number of days in a year = 365

*Use default value only if actual value is not available. ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Night Covers for Display Cases

Where:

Annual kWh = Annual kWh savings from night covers for display cases = Calculated CF = Peak Coincidence Factor = See Table 346


Table 345. Savings Rate per Foot for Night Covers for Display Cases

Display Case Temperature [°F] Savings Rate [kW/ft]

Low (-35 to -5) 0.03

Medium (0 to 30) 0.02

High (35 to 55) 0.01


295


End Use






Commercial



All Commercial

Refrigeration 0.00014802 0.00014802 0.00014802 0.00014802 0.00013081 0.00013081 0.00014802

VARIABLE SOURCES:

Table 347. Night Covers for Display Cases Algorithm Sources


LinearFeet Entered from application form.

HoursDay

Entered from application form; default value of 6 hours per day/2,190 hours per year, obtained by assuming 18-hour of uncovered operation of display case, based on a scenario from: Effects of Low-E Shields on the Performance and Power Use of a Refrigerated Display Case: http://www.econofrost.com/acrobat/ashrae_document.pdf

Table 345. Savings Rate per Foot for Night Covers for Display Cases

Rhode Island Technical Reference Manual for Estimating Savings from Energy Efficiency Measures; PY2013; page A-9, references Effects of Low-E Shields on the Performance and Power Use of a Refrigerated Display Case: http://www.econofrost.com/acrobat/ashrae_document.pdf



http://www.econofrost.com/acrobat/ashrae_document.pdf

http://www.econofrost.com/acrobat/ashrae_document.pdf


296

Refrigeration: Scroll Compressor

Measure Description Replacing an old reciprocating compressor with an equivalent scroll compressor reduces compressor energy consumption.

Fuel Electric


Baseline Equipment Reciprocating compressor.

Efficiency Qualification Scroll compressor.


-Compressor hp. -Number of units.




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Scroll Compressor

Where:

HP = Rated horsepower of the unit = 3.5656* (1.5 to 10)

SF = Savings factor = 13% Hours = Annual hours of equipment operation = 5,840

365 = Days/year = 365 0.746 = Conversion factor from hp to kW = 0.746 Units = Number of units


ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Scroll Compressor

Where:

Annual kWh = Annual kWh savings from scroll compressor = Calculated CF = Peak Coincidence Factor = See Table 348



End Use






Commercial



All Commercial

Refrigeration 0.00014802 0.00014802 0.00014802 0.00014802 0.00013081 0.00013081 0.00014802


297

VARIABLE SOURCES:

Table 349. Scroll Compressor Algorithm Sources


HP

Entered from application form; default value corresponds to the weighted average of cooler/freezer compressor hps from "Energy Savings Potential and R&D Opportunities for Commercial Refrigeration Final Report, 2009": http://apps1.eere.energy.gov/buildings/publications/pdfs/corporate/commercial_refrig_report_10-09.pdf

SF

Average of a of savings based on "Energy-Saving Incentives for High-Efficiency Scroll Compressors in Walk-In Coolers": http://www.emersonclimate.com/asia/en-AP/WhitePapers/2006CC-165_Std.pdf "Energy Analysis of Various Supermarket Refrigeration Systems, 2006": http://docs.lib.purdue.edu/cgi/viewcontent.cgi?article=1855&context=iracc

Hours

Estimated from case studies: "Energy-Saving Incentives for High-Efficiency Scroll Compressors in Walk-In Coolers": http://www.emersonclimate.com/asia/en-AP/WhitePapers/2006CC-165_Std.pdf "Energy Savings Potential and R&D Opportunities for Commercial Refrigeration Final Report, 2009": http://apps1.eere.energy.gov/buildings/publications/pdfs/corporate/commercial_refrig_report_10-09.pdf



http://apps1.eere.energy.gov/buildings/publications/pdfs/corporate/commercial_refrig_report_10-09.pdf


http://www.emersonclimate.com/asia/en-AP/WhitePapers/2006CC-165_Std.pdf

http://docs.lib.purdue.edu/cgi/viewcontent.cgi?article=1855&context=iracc

http://www.emersonclimate.com/asia/en-AP/WhitePapers/2006CC-165_Std.pdf




298

Refrigeration: ENERGY STAR Solid Door Refrigerator/Freezer

Measure Description Replacement of a federal-standard, commercial-size solid door refrigerator/freezer with an ENERGY STAR solid door refrigerator/freezer.

Fuel Electric


Baseline Equipment Federal standard commercial-size solid door refrigerator/freezer.

Efficiency Qualification ENERGY STAR-qualified solid door refrigerator/freezer.


-Equipment size, in cubic feet. -Model number to confirm ENERGY STAR.




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Solid Door Refrigerator/Freezer

Where:

Volume = Equipment size, in cubic feet C1 = Constant 1 = See Table 350 C2 = Constant 2 = See Table 350

365 = Number of days in a year = 365 Unit = Number of units

ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Solid Door Refrigerator/Freezer

Where:

Annual kWh = Annual kWh savings from ENERGY STAR solid door refrigerator/freezer

= Calculated


Table 350. Constants Used for kWh Savings Calculation for ENERGY STAR Solid Door Refrigerators/Freezers

Equipment Type Equipment Size [Cu. Ft.] C1 C2

Solid Door Refrigerator

15<Volume≤30 0.0630 -0.1600

30<Volume≤50 0.0440 0.4050

50<Volume 0.0400 0.6240

Solid Door Freezer

0<Volume≤15 0.1500 0.1300

15<Volume≤30 0.0000 2.3800

30<Volume≤50 0.2370 -4.7450

50<Volume 0.2420 -4.9530

( Volume+ )


299


End Use






Commercial



All Commercial

Refrigeration 0.00014802 0.00014802 0.00014802 0.00014802 0.00013081 0.00013081 0.00014802

VARIABLE SOURCES:

Table 352. ENERGY STAR Solid Door Refrigerator/Freezer Algorithm Sources



Table 350. Constants Used for kWh Savings Calculation for ENERGY STAR Solid Door Refrigerators/Freezers

Derived by taking the difference between the equivalent constants used for federal standards and for ENERGY STAR qualifications: Federal standard—Title 10 Part 431—Energy Efficiency Program for Certain Commercial and Industrial Equipment; Section 431.66 ; ENERGY STAR Efficiency Criteria for Commercial Solid Door Refrigerators & Freezers: http://www.energystar.gov/index.cfm?c=commer_refrig.pr_crit_commercial_refrigerators






300

Refrigeration: Strip Curtains for Walk-Ins

Measure Description Installation of strip curtains on walk-in cooler/freezer doorways.

Fuel Electric


Baseline Equipment Walk-in cooler/freezer doorways where a strip curtain did not previously exist.

Efficiency Qualification The effectiveness against infiltration must be increased by installing the measure.


-Area covered by strip curtain. -Type of walk-in equipment: cooler (medium temperature) or freezer (low temperature).




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Strip Curtains for Walk-Ins

Where: StripCurtainSavings = Annual per square foot kWh savings from installing strip

curtains = See Table 353

SqFt = Area covered by strip curtain, in ft2

ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Strip Curtains for Walk-Ins

Where:

Annual kWh = Annual kWh savings from strip curtains = Calculated CF = Peak Coincidence Factor = See Table 354


Table 353. kWh Savings from Strip Curtains for Walk-In Coolers/Freezers

Walk-In Type Strip Curtain Savings [kWh/yr/ft2]

Cooler (Med Temp) 24.7

Freezer (Low Temp) 134.5


End Use






Commercial



All Commercial

Refrigeration 0.00014802 0.00014802 0.00014802 0.00014802 0.00013081 0.00013081 0.00014802


301

VARIABLE SOURCES:

Table 355. Strip Curtains for Walk-Ins Algorithm Sources


SqFt Entered from application form.

Table 353. kWh Savings from Strip Curtains for Walk-In Coolers/Freezers

RTF Summary of Methodology and Sources for Unit Energy Savings Estimate; Restaurant Cooling Load Calculations.




302

Refrigeration: Vending Machine Controller

Measure Description

Vending machine controllers use infrared sensors to monitor traffic patterns in the vending machine's vicinity. When the sensor is not activated for a pre-set time, the controller either cuts power to the vending machine or operates the evaporator fans and compressor in a low-power mode.

Fuel Electric

End Use Controls

Baseline Equipment Existing refrigerated vending machines with no controller.

Efficiency Qualification -"Vending Mi$er™ or comparable brand. -For indoor machines that dispense non-perishable cold beverages only. -Direct-install.


-Number of existing units with a controller installed.




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Vending Machine Controller

Where: VendingControlSavings = Vending controller savings = 1,385

Nunit = Number of units ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Vending Machine Controller

Where:

Annual kWh = Annual kWh savings from vending machine = Calculated CF = Peak Coincidence Factor = See Table 356



End Use






Commercial



All Commercial

Refrigeration 0.00014802 0.00014802 0.00014802 0.00014802 0.00013081 0.00013081 0.00014802


303

VARIABLE SOURCES:

Table 357. Vending Machine Controller Algorithm Sources


VendingControlSavings

Average of sources: Tuffs, BPA, and ACEEE: Tuffs: http://sustainability.tufts.edu/downloads/VendingMiserHandout-updated020310.pdf http://sustainability.tufts.edu/?pid=39 BPA: http://www.wapa.gov/es/pubs/teleworkshop/documents/BPA_VM_pgm_desc.pdf ACEEE: http://www.aceee.org/ogeece/ch5_vendors.htm

Nunit Entered from application form.


http://sustainability.tufts.edu/downloads/VendingMiserHandout-updated020310.pdf

http://sustainability.tufts.edu/?pid=39

http://www.wapa.gov/es/pubs/teleworkshop/documents/BPA_VM_pgm_desc.pdf

http://www.aceee.org/ogeece/ch5_vendors.htm


304

Refrigeration: Vending Machine

Measure Description

ENERGY STAR-qualified new and rebuilt vending machines incorporate more efficient compressors, fan motors, and lighting systems as well as a low power mode option that allows the machine to be placed in low-energy lighting and/or low-energy refrigeration states during times of inactivity.

Fuel Electric


Baseline Equipment Standard vending machine.

Efficiency Qualification ENERGY STAR-qualified vending machine.


-ENERGY STAR model number. -Volume of the unit. -Daily energy consumption in kWh/day. -Number of units. -Door type.




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—ENERGY STAR Vending Machine

Class A (Glass Front): Class B (Closed Front):

*Model number from application form will provide the connection to the desired volume value and class type (from door type it is assumed “Glass Front” = Class A, “Closed Front” = Class B)

Where: MDEC = Maximum daily energy consumption (kWh/day) = Calculated

V = Refrigerated volume, in cubic feet = 24.44* ESdaily = Daily energy consumption (kWh/day) of the ENERGY STAR

vending machines = 3.68*

365 = Days/year = 365 Nunits = Number of units


ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—ENERGY STAR Vending Machine

Where:

Annual kWh = Annual kWh savings from ENERGY STAR vending machine = Calculated CF = Peak Coincidence Factor = See Table 358


305



End Use






Commercial



All Commercial

Refrigeration 0.00014802 0.00014802 0.00014802 0.00014802 0.00013081 0.00013081 0.00014802

VARIABLE SOURCES:

Table 359. ENERGY STAR Vending Machine Algorithm Sources


V

Entered from application form; default value corresponds to average ENERGY STAR product list data as of September, 2013: http://www.energystar.gov/index.cfm?fuseaction=find_a_product.showProductGroup&pgw_code=VMC

ESdaily

Entered from application form; default value corresponds to average ENERGY STAR product list data as of September, 2013: http://www.energystar.gov/index.cfm?fuseaction=find_a_product.showProductGroup&pgw_code=VMC



http://www.energystar.gov/index.cfm?fuseaction=find_a_product.showProductGroup&pgw_code=VMC





306

Shell: Foundation/Basement Wall Insulation

Measure Description Foundation/basement/rim Joists wall insulation slows the transfer of heat, and reduces heating in buildings.

Fuel Electric/Gas


Baseline Equipment An inadequately insulated foundation/basement wall (R-value of 3.0) in addition to the bare wall (with the construction R-value of 3.0) itself.

Efficiency Qualification -Foundation/basement/rim joists insulation wall Insulation, minimum R-value of 10.0 (or max fill). -Business assessment or pre-installation assessment required.


-Foundation/basement/rim joists insulation value (in R-value). -Heating system type (natural gas boiler, natural gas furnace, heat pump, electric resistance).




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Heating Savings kWh—Foundation/Basement Wall Insulation—Electric Resistance Space Heating


HDD = Below-ground heating degree days = 4,178 24 = Number of hours in a day = 24

3,412 = Conversion factor from Btu to kWh = 3,412 RInitial = R-value of initial foundation/basement wall insulation = 10.0


Electric Savings kWh—Foundation/Basement Wall Insulation—Heat Pump System

Where: COPBase = Coefficient of Performance of heat pump system = 3.3


307

Natural Gas Savings Therms—Foundation/Basement Wall Insulation—Gas Boiler/Furnace Space Heating



ANNUAL ENERGY DEMAND ALGORITHM: Natural Gas Demand Savings Peak Therms—Foundation/Basement Wall Insulation—Gas Boiler/Furnace Space Heating

Where: Annual Therms = Annual therms savings from foundation/basement wall

insulation = Calculated

CF = Peak Gas Coincidence Factor = See Table 360 Electric Demand Savings Peak kW—Foundation/Basement Wall Insulation—Heat Pump

Electric Demand Heating Savings Peak kW—Foundation/Basement Wall Insulation—Electric Resistance Space Heating



End Use






Commercial



All Commercial

Space Heat Boiler (Gas)

0.01083404 0.01149222 0.00980814 0.01184344 - - 0.01163881

Space Heat Furnace (Gas)

0.01083404 0.00995413 0.00654527 0.01144178 - - 0.00883527

Heat Pump (Electric)

0.00016505 0.00016509 0.00016423 0.00014486 0.00013081 0.00013081 0.00015943


308

VARIABLE SOURCES:

Table 361. Foundation/Basement Wall Insulation Algorithm Sources



HDDGround

Ground HDD adjustment factor calculation based on HDD, winter ground temperature, and weather bin data. Based on ground temperature of 53 degrees. (ASHRAE HVAC Applications pg. 34.17) Weather bin data and HDD obtained from TMY3 Weather Data for the weather station Des Moines International Airport. Ground temperature at 4-ft. depth is assumed to have a temperature of 5 degrees below the temperature of the surface based on: Figure 4, http://www.geo4va.vt.edu/A1/A1.htm

RInitial The initial R-value for a foundation or basement wall assumes zero or minimal existing insulation, or that it has fallen down, resulting in an R-value equivalent to building materials with only a small contribution of installed R-value (assume R-3).

RConstruction

Inferred from the 2011 assessment and the PA TRM 2013. The initial R-value for a wall assumes zero or minimal existing insulation, or that it has fallen down, resulting in an R-value equivalent to building materials with only a small contribution of installed R-value (R-4.5). The construction materials (roughly R-3) and their thickness, based on building simulation modeling using DOE-2.2 model (eQuest), inferred from the PA TRM. The baseline R-value resulting assumption is R-7.5.






http://www.geo4va.vt.edu/A1/A1.htm


309

Shell: Infiltration Control

Measure Description Sealing air leaks in windows, doors, roof, crawlspaces, and outside walls decreases overall heating and cooling losses.

Fuel Electric


Baseline Equipment Buildings with inadequate infiltration control.

Efficiency Qualification Building floor area must be 25,000 ft2 or less.


-Building size (floor area in ft2).

-HVAC system equipment.




ANNUAL ENERGY SAVINGS ALGORITHM: Electric/Gas Savings kWh/Therms—Infiltration Control

Where:

SavingsPerUnit = Annual kWh/therms savings per ft2 = See Table 362Table 1

Sqft = Building floor area, in ft2 = (100 to 25,000) ANNUAL ENERGY DEMAND ALGORITHM: Electric/Gas Demand Savings Peak kW/Therms—Infiltration Control

Where:

Annual kWh = Annual kWh savings from infiltration control = Calculated Annual Therms = Annual therms savings from infiltration control = Calculated



Table 362. Annual Savings per Square Foot Depending on HVAC System Type

End Use HVAC System SavingsPerUnit Units

Space Heat Furnace Gas Furnace 0.031 Therms/ft2/unit/yr

Space Heat Boiler Gas Boiler 0.031 Therms/ft2/unit/yr

Space Heat Electric Resistance/Furnace 0.583 kWh/ft2/unit/yr

Heat Pump Heat Pump 0.459 kWh/ft2/unit/yr

Heat Pump—Cooling Heat Pump 0.082 kWh/ft2/unit/yr

Heat Pump—Heating Heat Pump 0.377 kWh/ft2/unit/yr

Cooling DX Rooftop DX 0.082 kWh/ft2/unit/yr

Cooling Chillers Chiller 0.054 kWh/ft2/unit/yr


310


End Use






Commercial



All Commercial

Space Heat Furnace

0.01083404 0.00995413 0.00654527 0.01144178 - - 0.00883527

Space Heat Boiler

0.01083404 0.01149222 0.00980814 0.01184344 - - 0.01163881

VARIABLE SOURCES:

Table 364. Infiltration Control Algorithm Sources



Table 362. Annual Savings per Square Foot Depending on HVAC System Type

Unit energy savings based on eQUEST models, resulting in percent savings by end use, based on the NIST 2001—Studies: National Institute of Standards and Technology 2005: http://www.infiltec.com/PAPER2005042_Emmerich_AIVC_energy.pdf



http://www.infiltec.com/PAPER2005042_Emmerich_AIVC_energy.pdf


311

Shell: Insulated Doors

Measure Description Composite, steel, and thermal doors with a foam core increase overall insulation, slowing heat loss.

Fuel Electric/Gas


Baseline Equipment Doors with inadequate insulation (R-value of 1.43).

Efficiency Qualification -Tier 1: Doors: Minimum R-value of 2.86 (U-value = 0.35). -Tier 2: Doors: Minimum R-value of 10 (U-value = 0.10). -Opaque swinging doors (less than 50% glass area).


-Door insulation value (in R-value or U-value). -Heating system type (natural gas boiler, natural gas furnace, heat pump, electric resistance). -Cooling system type (CAC, heat pump, none).




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Heating Savings kWh—Insulated Doors—Electric Resistance Space Heating

Where: Sqft = Square footage of door area

HDD = Heating degree days at 65°F = 6,595 24 = Number of hours in a day = 24

3,412 = Conversion factor from Btu to kWh = 3,412 RBase = R-value of baseline door = 1.43

REff = R-value of new efficient insulated door = (2.86 to 25) Electric Cooling Savings kWh—Insulated Doors—Cooling System

Where: CDD = Cooling degree days at 65°F = 1,289

EERBase = Energy Efficiency Ratio of heat pump system = 11.0 1,000 = Conversion factor from Watts to kW = 1,000

Electric Savings kWh—Insulated Doors—Heat Pump System


312


Natural Gas Savings Therms—Insulated Doors—Gas Boiler/Furnace Space Heating



ANNUAL ENERGY DEMAND ALGORITHM: Natural Gas Demand Savings Peak Therms—Insulated Doors—Gas Boiler/Furnace Space Heating

Where: Annual Therms = Annual therms savings from insulated doors = Calculated

CF = Peak Gas Coincidence Factor = See Table 365 Electric Demand Savings Peak kW—Insulated Doors—Cooling System

Where: Annual Therms = Annual kWh savings from insulated doors = Calculated

CF = Peak Electric Coincidence Factor = See Table 365 Electric Demand Heating Savings Peak kW—Insulated Doors—Electric Resistance Space Heating


313



End Use






Commercial



All Commercial


0.01083404 0.01149222 0.00980814 0.01184344 - - 0.01163881


0.01083404 0.00995413 0.00654527 0.01144178 - - 0.00883527


0.00016505 0.00016509 0.00016423 0.00014486 0.00013081 0.00013081 0.00015943

Cooling DX (Electric)

0.00035993 0.00072962 0.00066279 0.00051390 0.00013081 0.00013081 0.00053998

VARIABLE SOURCES:

Table 366. Insulated Doors Algorithm Sources



HDD TMY3 Weather Data for the weather station Des Moines International Airport.

CDD TMY3 Weather Data for the weather station Des Moines International Airport.

RBase State code—IECC 2009 Table 502.2(1); assumed Zone 5 for all applications; use 2009 code until 2012 is enacted.

REff Entered from application form.







314

Shell: Roof Insulation

Measure Description Roof insulation slows the transfer of heat, and reduces heating and cooling loads in buildings.

Fuel Electric/Gas


Baseline Equipment A roof that is inadequately insulated (R-value of 10.0) in addition to the bare roof (with the construction R-value of 3.0) itself.

Efficiency Qualification -Roof insulation minimum R-value of 20 or max fill. -Business assessment or pre-installation assessment required.


-Roof insulation value (in R-value). -Heating system type (natural gas boiler, natural gas furnace, heat pump, electric resistance). -Cooling system type (CAC, heat pump, none).




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Heating Savings kWh—Roof Insulation—Electric Resistance Space Heating



3,412 = Conversion factor from Btu to kWh = 3,412 RInitial = R-value of initial roof insulation = 10.0

RConstruction = R-value of bare construction roof = 3.0 RFinal = R-value of new roof insulation = (20 to 65)

Electric Cooling Savings kWh—Roof Insulation—Cooling System



Electric Savings kWh—Roof Insulation—Heat Pump System


315


Natural Gas Savings Therms—Roof Insulation—Gas Boiler/Furnace Space Heating



ANNUAL ENERGY DEMAND ALGORITHM: Natural Gas Demand Savings Peak Therms—Roof Insulation—Gas Boiler/Furnace Space Heating

Where: Annual Therms = Annual therms savings from roof insulation = Calculated

CF = Peak Gas Coincidence Factor = See Table 367 Electric Demand Savings Peak kW—Roof Insulation—Heat Pump/Cooling System

Where: Annual Therms = Annual kWh savings from roof insulation = Calculated

CF = Peak Electric Coincidence Factor = See Table 367 Electric Demand Heating Savings Peak kW—Roof Insulation—Electric Resistance Space Heating


316



End Use






Commercial



All Commercial


0.01083404 0.01149222 0.00980814 0.01184344 - - 0.01163881


0.01083404 0.00995413 0.00654527 0.01144178 - - 0.00883527


0.00016505 0.00016509 0.00016423 0.00014486 0.00013081 0.00013081 0.00015943


0.00035993 0.00072962 0.00066279 0.00051390 0.00013081 0.00013081 0.00053998

VARIABLE SOURCES:

Table 368. Roof Insulation Algorithm Sources





RInitial From the 2011 assessment and the PA TRM 2013. The initial R-value for a roof assumes an 10.0 R-value. The construction materials (roughly R-3), using wall materials as a proxy and inferred from the PA TRM. The baseline R-value resulting assumption is R-13.0.

RConstruction








317

Shell: Wall Insulation

Measure Description Wall insulation slows the transfer of heat, and reduces heating and cooling loads in buildings.

Fuel Electric/Gas


Baseline Equipment A wall that is inadequately insulated (R-value of 4.5) in addition to the bare wall (with the construction R-value of 3.0) itself.

Efficiency Qualification -Wall insulation minimum R-value of 13.0 or max fill. -Business assessment or pre-installation assessment required.


-Wall insulation value (in R-value). -Heating system type (natural gas boiler, natural gas furnace, heat pump, electric resistance). -Cooling system type (CAC, heat pump, none).




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Heating Savings kWh—Wall Insulation—Electric Resistance Space Heating

Where: Sqft = Square footage of wall area


3,412 = Conversion factor from Btu to kWh = 3,412 RInitial = R-value of initial wall insulation = 4.5

RConstruction = R-value of bare construction wall = 3.0 RFinal = R-value of new wall insulation = (10 to 40)

Electric Cooling Savings kWh—Wall Insulation—Cooling System



Electric Savings kWh—Wall Insulation—Heat Pump System


318


Natural Gas Savings Therms—Wall Insulation—Gas Boiler/Furnace Space Heating



ANNUAL ENERGY DEMAND ALGORITHM: Natural Gas Demand Savings Peak Therms—Wall Insulation—Gas Boiler/Furnace Space Heating

Where: Annual Therms = Annual therms savings from wall insulation = Calculated

CF = Peak Gas Coincidence Factor = See Table 369 Electric Demand Savings Peak kW—Wall Insulation—Heat Pump/Cooling System

Where: Annual Therms = Annual kWh savings from wall insulation = Calculated

CF = Peak Electric Coincidence Factor = See Table 369 Electric Demand Heating Savings Peak kW—Wall Insulation—Electric Resistance Space Heating


319



End Use






Commercial



All Commercial


0.01083404 0.01149222 0.00980814 0.01184344 - - 0.01163881


0.01083404 0.00995413 0.00654527 0.01144178 - - 0.00883527


0.00016505 0.00016509 0.00016423 0.00014486 0.00013081 0.00013081 0.00015943


0.00035993 0.00072962 0.00066279 0.00051390 0.00013081 0.00013081 0.00053998

VARIABLE SOURCES:

Table 370. Wall Insulation Algorithm Sources





RInitial From the 2011 assessment and the PA TRM 2013. The initial R-value for a wall assumes zero or minimal existing insulation, or that it has fallen down, resulting in an R-value equivalent to building materials with only a small contribution of installed R-value (R-4.5). The construction materials (roughly R-3) and their thickness based on building simulation modeling using DOE-2.2 model (eQuest), inferred from the PA TRM. The baseline R-value resulting assumption is R-7.5.

RConstruction








320

Water Heat: Condensing Water Heater

Measure Description

A high-efficiency water heater reduces losses during operation and during standby, therefore proving more efficient than a standard gas water heater. A condensing water heater increases the thermal efficiency by removing the latent heat from the flue gasses.

Fuel Gas

End Use Water Heat

Baseline Equipment Standard gas water heater; baseline assumes >75,000 Btuh heating capacity and TE = 0.8.

Efficiency Qualification Thermal Efficiency (TE) must be 90% or greater condensing water heater.


-Capacity (gallons). -TE of condensing water heater. -Rated input power of condensing water heater. -Rated standby losses of condensing water heater.




ANNUAL ENERGY SAVINGS ALGORITHM: Gas Savings Therms—Gas Condensing Water Heater

Where:


TAmbient = Temperature of the ambient surroundings in °F = 65 100,000 = Conversion from Btu to Therms = 100,000

HotWaterPerGallon = Annual hot water usage per gallon of capacity of water heater, in gallons per gallon

= See Table 371

8.33 = Conversion from gallons of water to lbs of water in lbs/gal = 8.33 1 = Specific heat of water in Btu/lb°F = 1

CAP = Capacity of water heater in gallons = (40 to 130) TEEff = Thermal efficiency of condensing gas water heater = (0.90 to 0.99)

TEBase = Thermal efficiency of baseline gas water heater = 0.80


321

InputPower = Input power capacity of water heater, rated input power in Btuh

800 = Standby loss performance constant as part of DOE's standby loss equation

= 800

110 = Standby loss performance constant as part of DOE's standby loss equation

= 110

70 = The nominal temperature different between stored water and ambient requirements as part of DOE's SL equation and test procedure

= 70

StandbyLoss = Standby loss in Btu/hr 24 = Number of hours in a day = 24

365 = Number of days in a year = 365 ANNUAL ENERGY DEMAND ALGORITHM: Gas Savings Peak Therms—Gas Condensing Water Heater

Where: Annual Heating Therms = Annual therms savings for condensing water heater = Calculated


Table 371. Annual Hot Water Usage per Gallon of Water Heater Capacity






Commercial



803 630 433 594 558 558 558


End Use






Commercial



All Commercial

Water Heat 0.00068510 0.00176813 0.00068952 0.00057778 – – 0.00068206


322

VARIABLE SOURCES:

Table 373. Condensing Water Heater Algorithm Sources


TOut CPUC Residential Retrofit: High Impact Measure Evaluation Report Draft. Dec. 7, 2009. Pg. 76. Average temperature setpoints for two utilities.

TMains

Averaged monthly water main temperature, calculated using the methodology provided in Building America Research Benchmark Definition, updated December 2009. Pg.19-20: http://www.nrel.gov/docs/fy10osti/47246.pdf; water main temperature represents the average of TMY3 data from all Class I stations located in Des Moines.

TAmbient Assume average indoor mechanical room temperature to be 65 degrees for commercial applications.

CAP Entered from application form or from AHRI product directory.

TEEff Entered from application form or from AHRI product directory.

InputPower Assume the baseline is the same as new water heater; from application form or from AHRI product directory.

880, 110, 70 (Standby loss performance constants)

DOE Standard 10 CFR 430.32(d).

Standbyloss Entered from application form or from AHRI product directory.

Table 371. Annual Hot Water Usage per Gallon of Water Heater Capacity

Annual hot water usage in gallons is based on CBECS (2003) consumption data of West North Central (removed outliers of 1,000 kBtuh or less) to calculate hot water usage. Annual hot water gallons per tank size gallons is based on the tank sizing methodology found in ASHRAE 2011 HVAC Applications, Chapter 50 Service Water Heating. Demand assumptions (gallons per day) for each building type based on ASHRAE Chapter 50 and to LBNL White Paper. LBL-37398 Technology Data Characterizing Water Heating in Commercial Buildings: Application to End Use Forecasting.





323

Water Heat: Desuperheater

Measure Description

A desuperheater captures waste heat from air and ground source heat pumps and uses it to heat the domestic hot water. Most savings are captured during summer, when the heat pump generates waste heat from the cooling process.

Fuel Electric/Gas

End Use Water Heat

Baseline Equipment Heat pump water heater without a desuperheater installed.

Efficiency Qualification -Add-on desuperheater to air source heat pump. -Add-on desuperheater to ground source heat pump.


Domestic hot water heater type (electric, gas storage). (If not available, assume electric storage.)




ANNUAL ENERGY SAVINGS ALGORITHM: Electric/Gas Savings kWh/Therms—Desuperheater—Electric/Gas Storage Water Heater

Where:

Annual kWhPerUnit = Annual kWh savings per desuperheater installation = See Table 374 Annual ThermsPerUnit = Annual therms savings per desuperheater installation = See Table 374

Unit = Number of rebated units ANNUAL ENERGY DEMAND ALGORITHM: Electric/Gas Savings Peak kW/Therms—Electric/Gas Condensing Water Heater

Where:

Annual kWh = Annual kWh savings from desuperheater = Calculated Annual Therms = Annual therms savings from desuperheater = Calculated


Table 374. Annual Savings Per Desuperheater Installation

Installation Date Capacity Annual kWhPerUnit Annual ThermsPerUnit

Before 1/1/16 ≥ 20 and ≤ 100 889.0 41.6

After 1/1/16 ≥ 20 and ≤ 55 860.1 40.2

After 1/1/16 > 55 and ≤ 100 829.2 66.9


324

Water heater standard, DOE Standard 10 CFR 430.32(d), changes in 4/16/2015. IPL adopts mid-year code changes the first of the year following the change (e.g., the water heater change due 4/16/2015 would be implemented by IPL programs and TREES on 1/1/2016). All analysis and assumptions based on first of the year following the mid-year code change.


End Use






Commercial



All Commercial

Water Heat 0.00068510 0.00176813 0.00068952 0.00057778 – – 0.00068206

VARIABLE SOURCES:

Table 376. Condensing Water Heater Algorithm Sources



Table 374. Annual Savings Per Desuperheater Installation

Based on custom analysis; annual hot water usage in gallons are based on CBECS (2003) consumption data of West North Central (removed outliers of 1,000 kBtuh or less) to calculate hot water usage. Annual hot water gallons per tank size gallons are based on the tank sizing. Analysis of Air Conditioning Heat Recovery Units, LBNL-39383, Lawrence Berkeley National Laboratory; 10% cooling savings based on Chicago and adjusted based on CDD. Referenced in Builder Guide E3: Improve Energy Efficiency with Desuperheaters: http://stampededrive.net/PDF/BuilderGuide3E.pdf; IPL adopts mid-year code changes the first of the year following the change (e.g., the water heater change due 4/16/2015 would be implemented by IPL programs and TREES on 1/1/2016). All analysis and assumptions are based on first of the year following the mid-year code change.



http://stampededrive.net/PDF/BuilderGuide3E.pdf


325

Water Heat: Drainwater Heat Recovery

Measure Description

Typically 80% to 90% of the energy used to heat water escapes as water goes down the drain. Drainwater (or greywater) heat recovery systems capture this energy to preheat cold water entering the building or going to other water fixtures. Drainwater heat recovery systems can reduce water heater energy consumption by approximately 15% to 30%.

Fuel Electric/Gas

End Use Water Heat

Baseline Equipment 40-gallon water heater with no drainwater heat recovery system.

Efficiency Qualification Installed drainwater heat recovery system must be either a Power-Pipe, GFX system, or similar product.


-Building type. -Water heat type (electric or gas). -Number of units rebated.




ANNUAL ENERGY SAVINGS ALGORITHM: Electric/Gas Savings kWh/Therms—Drainwater Heat Recovery

Where: Annual kWhUnitSavings = Annual kWh savings per drainwater heat recovery unit = 1,095

Annual ThermsUnitSavings = Annual therms savings per drainwater heat recovery unit = 49 Unit = Number of rebated units

ANNUAL ENERGY DEMAND ALGORITHM: Electric/Gas Savings Peak kW/Therms—Drainwater Heat Recovery

Where:

Annual kWh = Annual kWh savings for drainwater heat recovery unit = Calculated Annual Therms = Annual therms savings for drainwater heat recovery unit = Calculated



326



End Use






Commercial



All Commercial

Water Heat (Gas)

0.00068510 0.00176813 0.00068952 0.00057778 - - 0.00068206


0.00013748 0.00013512 0.00024250 0.00022084 0.00013081 0.00013081 0.00020626

VARIABLE SOURCES:

Table 378. Drainwater Heat Recovery Algorithm Sources



Annual kWhUnitSavings Savings values inferred from the following: metering study found savings to from 25% to 30%. Assume 25% savings for this analysis and interpolated from graph of Figure 2. Heating contributions depend on inlet water temperatures (page 3) based on: Tomlinson, J. J. Letter to Marc LaFrance, Manager, Appliance and Emerging Technology Program, U.S. Department of Energy. Subject: GFX Evaluation. Oak Ridge, TN: Oak Ridge National Laboratory, accessed 07 November 2008: http://gfxtechnology.com/Duluth-Triplex.pdf With reference to "A Quantitative Study of the Viability of Greywater Heat Recovery (GWHR)," June 2011.

Annual ThermsUnitSavings



http://gfxtechnology.com/Duluth-Triplex.pdfb


327

Water Heat: Water Heater

Measure Description

-A high-efficiency water heater experiences reduced standby losses and therefore proves more efficient than a standard gas water heater. -Tankless water heaters provide hot water at a preset temperature when needed and without storage, thereby reducing or eliminating standby losses. -A heat pump water heater moves heat from a warm reservoir (such as air), transferring this heat into the hot water system.

Fuel Electric/Gas

End Use Water Heat

Baseline Equipment Standard gas/electric water heater.


-Qualified electric storage water heaters must be ≤ 12 kW. -Qualified gas water storage heaters must be ≤ 75,000 Btuh and ≥ 20 gallons. -Qualified gas water tankless heaters must be >75,000 Btuh and <200,000 Btuh; ≥ 4,000 Btuh/gallon and <2 gallons. -Gas water heater that is a storage water heater EF = 0.67. -Gas water heater that is a tankless water heater EF = 0.82. -Electric water heater that is a Heat Pump Water Heater EF = 2.0. -Storage tank water heaters must be 40 gallon minimum.


-Capacity (gallons). -Efficiency (EF). -Installation date.



Program Nonresidential Prescriptive Rebates Program Water heater standard, DOE Standard 10 CFR 430.32(d), changes in 4/16/2015. IPL adopts mid-year code changes the first of

the year following the change (e.g., the water heater change due 4/16/2015 would be implemented by IPL programs and TREES

on 1/1/2016). All analysis and assumptions are based on first of the year following the mid-year code change.

ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Heat Pump Water Heater

Where:

TOut = Temperature of hot water exiting water heater in °F = 126.5 TMains = Temperature of water entering hot water heater in °F = 56.5 3,412 = Conversion from Btu to kWh = 3,412

HotWaterPerGallon = Annual hot water usage per gallon of capacity of water heater, in gallons per gallon

= See Table 379

8.33 = Conversion from gallons of water to lbs of water in lbs/gal = 8.33 1 = Specific heat of water in Btu/lb°F = 1

CAP = Capacity of water heater in gallons EFBase = Energy Factor of baseline water heater based on capacity = Calculated

Ce1 = Constant used to calculate electric baseline energy factor = See Table 380


328

Ce2 = Constant used to calculate electric baseline energy factor = See Table 380 EFEff = Energy Factor of efficient water heater = (2 to 2.5)

Gas Savings Therms—Gas Storage Water Heater

Where: Nppl = Number of people with gas water heating = See Table 380

100,000 = Conversion Factor from Btu to Therms = 100,000 Cg2 = Constant used to calculate gas baseline energy factor = See Table 380 Cg2 = Constant used to calculate gas baseline energy factor = See Table 380

EFEff = Energy Factor of efficient gas water heater = (0.82 to 0.98) Gas Savings Therms—Gas Tankless Water Heater

Where:

40 = Assumed size of the equivalent storage water heater = 40

ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Heat Pump Water Heater

Where:

CF = Peak Coincidence Factor = See Table 381 Gas Savings Peak Therms—Gas Storage and Tankless Water Heater

Where:



329


Table 379. Annual Hot Water Usage Per Gallon of Water Heater Capacity






Commercial



All Commercial

803 630 433 594 558 558 558


Installation Date Capacity Ce1 Ce2 Cg1 Cg2

Before 1/1/16 ≥ 40 and ≤ 120 0.97 0.00132 0.67 0.0019

After 1/1/16 ≥ 40 and ≤ 55 0.96 0.0003 0.675 0.0015

After 1/1/16 > 55 and ≤ 120 2.057 0.00113 0.8012 0.00078


End Use






Commercial



All Commercial

Water Heat (Gas)

0.00068510 0.00176813 0.00068952 0.00057778 - - 0.00068206


0.00013748 0.00013512 0.00024250 0.00022084 0.00013081 0.00013081 0.00020626

VARIABLE SOURCES:

Table 382. Water Heater Algorithm Sources


Tout CPUC Residential Retrofit: High-Impact Measure Evaluation Report Draft. Dec. 7, 2009. Pg. 76. Average temperature setpoints for two utilities.

Tmains

Averaged monthly water main temperature, calculated using the methodology provided in Building America Research Benchmark Definition, updated December 2009. Pg.19-20. http://www.nrel.gov/docs/fy10osti/47246.pdf; water main temperature represents the average of TMY3 data from all Class I stations located in Des Moines.

EFEff Entered from application form.


40 (Tankless water heater equivalent capacity)

Baseline tank size for gas tankless water heater is assumed to be equivalent of 40 gallons.



330


Table 379. Annual Hot Water Usage Per Gallon of Water Heater Capacity

Annual hot water usage in gallons based on CBECS (2003) consumption data of West North Central (removed outliers of 1,000 kBtuh or less) to calculate hot water usage. Annual hot water gallons per tank size gallons based on the tank sizing methodology found in ASHRAE 2011 HVAC Applications. Chapter 50 Service Water Heating. Demand assumptions (gallons per day) for each building type based on ASHRAE Chapter 50 and to LBNL White Paper. LBL-37398 Technology Data Characterizing Water Heating in Commercial Buildings: Application to End Use Forecasting.


DOE Standard 10 CFR 430.32(d). IPL storage tank water heaters must be 40-gallon minimum. IPL adopts mid-year code changes the first of the year following the change (e.g., the water heater change due 4/16/2015 would be implemented by IPL programs and TREES on 1/1/2016). All analysis and assumptions are based on first of the year following the mid-year code change. Installation date of the water heater (not manufactured date) is assumed and used for IPL programs and TREES.




331

Business Assessment Program Table 383. Building Assessment Program Overview

Eligible Customers




Building Type Nonresidential Nonresidential




332

Direct-Install: CFLs

Measure Description Savings captured by installing CFLs that require less power than incandescent lamps.

Fuel Electric

End Use Lighting

Baseline Equipment Incandescent lamps compliant with EISA Standards, which take effect on 1/1/14.

Efficiency Qualification -Qualified CFLs. -Direct-install of 13- and 23-watt CFLs.


-Efficient lamp quantity. -Hours of use or building type group.



Program Business Assessment Program

ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—CFLs

Where:

CFLSavings = Average annual unit energy savings from CFL replacement in kWh/unit/year

=

167

Units = Number of units ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—CFLs

Where:

Annual kWh = Annual kWh savings from CFL replacement = Calculated CF = Peak Coincidence Factor = See Table 384



End Use






Commercial



All Commercial

Lighting 0.00015799 0.00014871 0.00023078 0.00019620 0.00013081 0.00013081 0.00020796


333

VARIABLE SOURCES:

Table 385. CFLs Algorithm Sources


CFLSavings CFL wattage from planned program products, based on a conversation with Jake Felton from CLEAResult, 9/20/2013.





334

Direct-Install: Faucet Aerators

Measure Description

A faucet aerator can be attached to the faucet head to aerate the water stream while lowering the flow rate, without altering the perceived water pressure. This reduces hot water demand and energy required to heat water.

Fuel Electric/Gas

End Use Water Heat


Efficiency Qualification -Direct-install.


-Number of faucet aerators installed.




ANNUAL ENERGY SAVINGS ALGORITHM: Electric/Gas Savings kWh/Therms—Faucet Aerator

Where: SavingsPerUnit = Average annual unit energy savings from faucet aerator in

kWh/unit/year or therms/unit/year =

See Table 386

Units = Number of units ANNUAL ENERGY DEMAND ALGORITHM: Electric/Gas Demand Savings Peak kW/Therms—Faucet Aerator

Where:

Annual kWh = Annual kWh savings from faucet aerator = Calculated Annual Therms = Annual therms savings from faucet aerator = Calculated




760 33.9


335


End Use






Commercial



All Commercial


0.00013748 0.00013512 0.00024250 0.00022084 0.00013081 0.00013081 0.00020626

Water Heat (Gas)

0.00068510 0.00176813 0.00068952 0.00057778 - - 0.00068206

VARIABLE SOURCES:





Custom calculation using algorithm found in PA Technical Reference Manual 2013, Pg. 42.




336

Direct-Install: LED Exit Sign

Measure Description LED exit signs operate at low wattages and last over 50,000 hours, while CFL exit signs can use two to four times more power and have a shorter life.

Fuel Electric

End Use Lighting


Efficiency Qualification -Existing construction only. -Must replace incandescent or CFL exit signs. -Direct-install.



Market Opportunity Retofit




Where:

ExitSignSavings = Average annual unit energy savings from an LED exit sign in kWh/unit/year

= 214


Where:




End Use






Commercial



All Commercial

Lighting 0.00015799 0.00014871 0.00023078 0.00019620 0.00013081 0.00013081 0.00020796


337

VARIABLE SOURCES:



ExitSignSavings

Ratio of incandescent exit signs to all incandescent, fluorescent, and LED exit signs. Rensselaer Polytechnic Institute and Lighting Research Center estimated that 90% of eligible exit signs were incandescent (2005).

WI Focus on Energy, “Business Programs: Deemed Savings Manual V1.0,” Update: March 22, 2010. “LED Exit Sign."

2010 U.S. Lighting Market Characterization, January 2012: http://apps1.eere.energy.gov/buildings/publications/pdfs/ssl/2010-lmc-final-jan-2012.pdf







338

Direct-Install: Low-Flow Showerhead

Measure Description A low-flow showerhead reduces the flow rate of the showerhead fixture, reducing hot water demand and consequently reducing energy required to heat water.

Fuel Electric/Gas

End Use Water Heat








ANNUAL ENERGY SAVINGS ALGORITHM: Electric/Gas Savings kWh/Therms—Low-Flow Showerhead

Where: SavingsPerUnit = Average annual unit energy savings from a low-flow

showerhead in kWh/unit/year or therms/unit/year =

See Table 391

Units = Number of units ANNUAL ENERGY DEMAND ALGORITHM: Electric/Gas Demand Savings Peak kW/Therms—Low-Flow Showerhead

Where:





408 18


339


End Use






Commercial



All Commercial


0.00013748 0.00013512 0.00024250 0.00022084 0.00013081 0.00013081 0.00020626

Water Heat (Gas)

0.00068510 0.00176813 0.00068952 0.00057778 - - 0.00068206

VARIABLE SOURCES:





Weighted average (for different building types) of custom calculation, based on algorithm found in PA Technical Reference Manual 2013, pg. 42.




340

Direct-Install: Pre-Rinse Sprayer Valve

Measure Description Low-flow spray valves mix water and air to reduce amounts of water flowing through spray heads, creating a fine water spray through a screen inserted in the spray head.

Fuel Electric

End Use Water Heat

Baseline Equipment Standard flow-rate, pre-rinse sprayer valve.



Water heat type (electric or gas).




ANNUAL ENERGY SAVINGS ALGORITHM: Electric/Gas Savings kWh/Therms—Pre-Rinse Sprayer Valve

Where:

PRSVSavings = Average annual unit energy savings from low-flow pre-rinse sprayer valves in kWh/unit/year or therms/unit/year

=

See Table 394

Units = Number of units ANNUAL ENERGY DEMAND ALGORITHM: Electric/Gas Demand Savings Peak kW/Therms—Pre-Rinse Sprayer Valve

Where:

Annual kWh = Annual kWh savings from pre-rinse sprayer valve = Calculated Annual Therms = Annual therms savings from pre-rinse sprayer valve = Calculated



PRSVSavings [kWh/unit/year] PRSVSavings [Therms/unit/year]

1,331 59


341


End Use






Commercial



All Commercial


0.00013748 0.00013512 0.00024250 0.00022084 0.00013081 0.00013081 0.00020626

Water Heat (Gas)

0.00068510 0.00176813 0.00068952 0.00057778 - - 0.00068206

VARIABLE SOURCES:

Table 396. Pre-Rinse Sprayer Valve Algorithm Sources



Water main data for Des Moines, based on NREL methodology. Average of metered data from five sources, all referenced in: RTF UES Measures and Supporting Documentation—Commercial: Cooking Equipment—Pre-Rinse Spray Valves Version 1.1: http://rtf.nwcouncil.org/measures/measure.asp?id=100






342

Direct-Install: Programmable Thermostat


Fuel Electric/Natural Gas

End Use HVAC Controls

Baseline Equipment A standard thermostat without a programmable feature

Efficiency Qualification Programmable thermostats for automatic control of temperature setpoints.


Number of thermostats replaced.




ANNUAL ENERGY SAVINGS ALGORITHM: Electric/Gas Savings kWh/Therms—Programmable Thermostat

Where: Annual kWh = Total annual kWh savings per thermostat control = 620

Annual Therms = Total annual therms savings per thermostat control = 43 ANNUAL ENERGY DEMAND ALGORITHM: Electric/Gas Demand Savings Peak kW/Therms—Programmable Thermostat

Where:

Peak kW = Peak kW savings per thermostat control = 0.2000 Peak Therms = Peak therms savings per thermostat control = 0.3994

VARIABLE SOURCES:



Annual kWh Inferred from the 2011 Assessment of Potential. Unit energy savings based on percent savings assumptions from DEER and other assumptions; weighted average of kWh savings by commercial building type.

Annual Therms Inferred from the 2011 Assessment of Potential. Unit energy savings based on percent savings assumptions from DEER and other assumptions; weighted average of therms savings by commercial building type.

Peak kW Inferred from the 2011 Assessment of Potential. Unit energy savings based on percent savings assumptions from DEER and other assumptions; annual kWh multiplied by the weighted average of the Peak Electric Coincidence Factors of commercial building types.

Peak Therms Inferred from the 2011 Assessment of Potential. Unit energy savings based on percent savings assumptions from DEER and other assumptions; annual therms multiplied by the weighted average of the Peak Gas Coincidence Factors of commercial building types.


343

Direct-Install: Vending Machine Controller

Measure Description

Vending machine controllers use infrared sensors to monitor traffic patterns in the vending machine's vicinity. When movement does not activate the sensor for a pre-set time, the controller cuts power to the vending machine or operates the evaporator fans and compressor in a low-power mode.

Fuel Electric

End Use Controls

Baseline Equipment Existing refrigerated vending machines with no controller.

Efficiency Qualification -"Vending Mi$er™ or comparable brand. -For indoor machines that dispense non-perishable cold beverages only. -Direct-install.


Number of existing units with a controller installed.




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Vending Machine Controller

Where: VendingControlSavings = Vending controller savings = 1,385

Nunit = Number of units ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Vending Machine Controller

Where:

Annual kWh = Annual kWh savings from vending machine = Calculated CF = Peak Coincidence Factor = See Table 398



End Use






Commercial



All Commercial

Refrigeration 0.00014802 0.00014802 0.00014802 0.00014802 0.00013081 0.00013081 0.00014802


344

VARIABLE SOURCES:

Table 399. Vending Machine Controller Algorithm Sources


VendingControlSavings

Average of sources: ACEEE, BPA, and Tuffs Tuffs: 1. http://sustainability.tufts.edu/downloads/VendingMiserHandout-

updated020310.pdf 2. http://sustainability.tufts.edu/?pid=39 BPA: http://www.wapa.gov/es/pubs/teleworkshop/documents/BPA_VM_pgm_desc.pdf ACEEE: http://www.aceee.org/ogeece/ch5_vendors.htm

Nunit Entered from application form.




http://sustainability.tufts.edu/?pid=39

http://www.wapa.gov/es/pubs/teleworkshop/documents/BPA_VM_pgm_desc.pdf

http://www.aceee.org/ogeece/ch5_vendors.htm


345

Direct-Install: Water Heater Pipe Insulation

Measure Description Water heater pipe insulation reduces heat loss from pipes, thereby increasing efficiency and reducing the amount of required heating energy.

Fuel Electric/Gas

End Use Water Heat

Baseline Equipment Water heater pipe insulation without insulation (bare pipe; below code).

Efficiency Qualification Insulation increases the R-Value from below code (bare pipe) to R-6.






ANNUAL ENERGY SAVINGS ALGORITHM: Electric/Gas Savings kWh/Therms—Water Heater Pipe Insulation

Where: ElectricSavingsPerInstall = Annual kWh savings per 6 ft of pipe insulation = 61.18

GasSavingsPerInstall = Annual therms savings per 6 ft of pipe insulation = 2.73 ANNUAL ENERGY DEMAND ALGORITHM: Electric/Gas Demand Savings Peak kW/Therms— Water Heater Pipe Insulation

Where:




End Use






Commercial



All Commercial

Electric Water Heat

0.00013748 0.00013512 0.00024250 0.00022084 0.00013081 0.00013081 0.00020626

Gas Water Heat

0.00068510 0.00176813 0.00068952 0.00057778 - - 0.00068206

VARIABLE SOURCES:


346



ElectricSavingsPerInstall Custom calculation using 3E Plus v4.0 to determine heat loss in water heater pipes, with reference to ASHRAE Fund 2009 Table 23.16 for copper heat loss tables. GasSavingsPerInstall




347

Direct-Install: Water Heater Temperature Setback

Measure Description A behavioral change of lowering water heater temperatures to 120 degrees. End uses realize savings when set temperatures are equal to or greater than the water heater thermostat set temperature.

Fuel Electric/Gas

End Use Water Heat


Efficiency Qualification Water heater temperature should be turned down to 120 degrees.







Where: ElectricSavingsPerInstall = Annual kWh savings from water heater temperature setback = 206

GasSavingsPerInstall = Annual therms savings from water heater temperature setback = 11 ANNUAL ENERGY DEMAND ALGORITHM: Electric/Gas Demand Savings Peak kW/Therms—Water Heater Temperature Setback

Where:



End Use






Commercial



All Commercial

Electric Water Heat

0.00013748 0.00013512 0.00024250 0.00022084 0.00013081 0.00013081 0.00020626

Gas Water Heat

0.00068510 0.00176813 0.00068952 0.00057778 - - 0.00068206

VARIABLE SOURCES:


348



ElectricSavingsPerInstall Savings percent of values averaged from the following state TRMs and applied to a typical energy use of a water heater with a baseline set temperature of 126.5degrees: -Efficiency Vermont Technical Reference User Manual (TRM), pg.405: http://www.greenmountainpower.com/upload/photos/371371TRM_User_Manual_No_2013-82-5-protected.pdf -Efficiency Maine Residential Technical Reference Manual, pg.24: http://www.efficiencymaine.com/docs/EMT-TRM_Residential_v2014-1.pdf -Massachusetts Technical Reference Manual PY 2013-2015, pg.317: http://www.ma-eeac.org/Docs/8.3_TRMs/1MATRM_2013-15%20PLAN_FINAL.pdf










349

Custom Rebates Program Table 404. Custom Rebates Program Overview

Eligible Customers


Customer Class Nonresidential retail electric Nonresidential retail natural gas

Customer Status Building or business owners; landlords of IPL customers

Building or business owners; landlords of IPL customers

Building Type Commercial; Industrial; Agricultural Commercial; Industrial; Agricultural

Building Vintage Existing and new construction Existing and new construction


The Custom Rebates Program promotes energy-efficiency products and practices among commercial

and industrial customers. The program’s custom incentive structure gives energy users the flexibility to:

install a broad range of high-efficiency equipment not included in IPL’s Nonresidential Prescriptive

Rebates Program; or implement equipment optimization and/or operational and process changes that

reduce energy consumption and peak demand.

IPL nonresidential customers may qualify for custom rebates if they replace standard-efficiency

equipment with equipment and measures that provide energy and/or demand savings. The program

also offers energy-efficient training for facility managers and operators. Program incentives include:

Any measure or project not included in IPL’s Nonresidential Prescriptive Rebates Program or

Agriculture Sector Program due to size, scope, or unique characteristics of the energy-efficiency

equipment or measure;

New construction, additions, and remodeling projects that have progressed beyond the early

design phase;3

Design assistance to improve the efficiency of industrial processes;

Cost-effective and qualified combined heat and power projects;

Training on efficient building operations and efficient technologies for operations and

maintenance staff; and

Equipment optimization, retrocommissioning, or other operational and maintenance

improvements that ensure customer facilities’ continue performance over time.

The Custom Rebates Program offers incentives for a comprehensive set of energy-efficiency measures

and projects for existing buildings and new construction. Eligible efficiency measures may include:

Compressed air

Energy management controls

HVAC, lighting

3 Projects beyond the early design phase no longer qualify for IPL’s Commercial New Construction Program.


350

Insulation

Processing equipment

Refrigeration systems

VFDs

Ventilation systems

Waste heat recovery systems

Process heating and cooling.

Michaels Engineering tracks and captures all savings, following the Technical Guide Book for custom

projects. IPL receives all data and analysis for program tracking. The SRM does not summarize measure

algorithms for this program.


351

Commercial New Construction Program Table 405. Commercial New Construction Program Overview

Eligible Customers


Customer Class Nonresidential retail electric (can be single-service or in combination with retail natural gas service)

Nonresidential retail natural gas (must be in combination with retail electric service)

Customer Status Building owners Building owners

Building Type Commercial; Multifamily; Industrial Commercial; Multifamily; Industrial

Building Vintage New construction; major renovations New construction; major renovations


The Commercial New Construction Program promotes long-term energy savings by encouraging the

adoption of high-performance building practices in the new construction of nonresidential facilities in

IPL’s territory. Through the program, IPL offers energy design assistance (EDA) and construction

incentives to commercial builders and developers who design and build new energy-efficient buildings

and facilities that exceed the current State of Iowa commercial building energy code.

IPL provides incentives to participants when they achieve a target level of energy savings above the

current State of Iowa building energy code. Construction incentives are designed to offset the additional

cost of constructing high-performance commercial buildings.

IPL offers four program tracks based on the planned project size and end use:

1) Program Track I targets the construction of commercial buildings up to 15,000 square feet in size

that are primarily design/build or design/bid/build construction projects. Participants in this

track must exceed current commercial energy-efficient code requirements by 15 percent.

2) Program Track II (formerly encompassed within the Custom Track) targets buildings larger than

15,000 square feet that are straightforward in design and may be on a fast design schedule.

Track II provides evaluation of efficiency options for one type of mechanical system solution. IPL

works with developers in this track to achieve energy savings between 15 and 40 percent above

the current commercial energy code.

3) Program Track III (formerly Custom Track) targets buildings larger than 15,000 square feet that

require more customized energy design. The program provides energy modeling of custom

efficiency strategies selected by the owner/design team. IPL works with developers in this track

to achieve energy savings between 15 and 40 percent above the current commercial energy

code.

4) Program Track IV (formerly Custom Plus Track) offers incentives and assistance to help building

owners or developers achieve energy savings that are 40 to 60 percent above current energy


352

code. This track also provides technical and certification support for participants to meet the

requirements of Leadership in Energy and Environmental Design (LEED), ENERGY STAR, Energy

Policy Act of 2005, 2030 Challenge, and other built-environment initiatives.

Participants work closely with IPL energy-efficiency staff. IPL provides incentives throughout the design

and implementation process, under the following protocols:

EDA: IPL provides free consulting to help customers identify the optimal mix of cost-effective energy-efficiency strategies, such as building shell/envelope, window glazing, day-lighting design and control, lighting design and control, heating and cooling systems, motors and pumps, compressed air, and outside air. IPL pays incentives for design assistance services directly to the third-party consultant.

Design Team Incentive: IPL provides a prescriptive design team incentive based on the customer’s construction track. This incentive is intended to offset most or all of the expenses incurred by participating in the EDA process. IPL provides the design team incentive following submittal and review of construction documents.

Construction Incentives: IPL designed its construction incentives to cover a portion of the cost of implementing strategies that result in energy savings of at least 15 percent above the State of Iowa commercial building energy code. Incentive levels are based on the completed building’s verified savings, and are paid approximately 60 days following occupancy of the new building.

Similar to the Custom program, Michaels Engineering tracks and captures all savings, following the ASHRAE-90.1 standards and Technical Guide Book for new construction projects. IPL receives all data and analysis for program tracking. The SRM does not summarize measure algorithms for this program.


353

Agriculture Prescriptive Rebates Program Table 406. Agriculture Prescriptive Rebates Program Overview

Eligible Customers


Customer Class Agriculture electric Agriculture natural gas


Building Type Agriculture Agriculture




354

Agriculture-Specific: Grain Dryer

Measure Description

-Savings achieved by replacing an existing, old grain dryer with a new grain dryer. -Retrofit projects achieve electric savings by replacing old grain dryers with new grain dryers that operate more efficiently due to design improvements, increased capacity, increased production, and reduced hours of operation. -The same electric savings are achieved in new construction projects because the customer typically has the option of purchasing old or refurbished grain dryers that are still on the market (per discussions with Dave Warrington). These baseline grain dryers would cost less and have efficiencies comparable to old grain dryers, and the savings are, therefore, the same for new construction and existing buildings.

Fuel Electric

End Use Agriculture-Specific

Baseline Equipment Existing old grain dryer with lower efficiency.


-Only electric projects may qualify. Combination or gas-only projects are directed to the Custom Rebate program. -Bushels/hr must be provided by the manufacturer, rated at 5 pts of moisture removal per bushel. -Variability in grain dryer type/savings for dryers larger than 2,000 bushels/hr is such that grain dryers of that size fit better with the Custom Rebate program.


-Number of grain dryers installed. -Grain dryer capacity (bushels/hr).


Sector(s) Agriculture

Program Agriculture Prescriptive Rebates

ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Grain Dryers

Where: = Number of average bushels dried per year = See Table 407

= kWh usage per bushel for an old grain dryer = 0.075 = kWh usage per bushel for a new grain dryer = 0.035

Table 407. Estimating Bushels per Year

Savings Tier (Bushels/hr) Savings Tier (Bushels/yr) Average Bushels/yr

< 500 < 170,000 85,000

≥ 500 and < 1,000 ≥ 170,000 and < 330,000 225,000

≥ 1,000 and < 2,000 ≥ 200,000 and < 670,000 400,000


355

ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Grain Dryers

VARIABLE SOURCES:

Table 408. Grain Dryer Algorithm Sources


Bushelsyr Alliant Energy Custom Rebate project data from 2012/2013.

kWh bushel old Alliant Energy Custom Rebate project data from 2012/2013.

kWh bushel new Alliant Energy Custom Rebate project data from 2012/2013.

This technology does not provide peak demand savings; grain dryer operations do not run during peak summer months.


356

Agriculture-Specific: Livestock Waterers

Measure Description Purchase and Installation of automatic livestock waterers.

Fuel Electric


Baseline Equipment Manual livestock watering equipment.


-Waterer must have two inches or more of insulation completely surrounding the inside of the waterer. -Electric heating element (non-electric waterers do not qualify). -If the heating element is greater than 250 watts, an adjustable thermostat is required. -Only new units are accepted.


Number of livestock waterers installed.




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Livestock Waterers

Where: kWh/waterer = Annual savings per livestock waterer in kWh/year /unit = 1,104

Nunits = Number of livestock waterers installed ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Livestock Waterers

Where:

Annual kWh = Annual kWh savings from livestock waterer = Calculated CF = Agriculture Peak Coincidence Factor = 0.0001308

VARIABLE SOURCES:

Table 409. Livestock Waterers Algorithm Sources


kWh/waterer Alliant's Global Energy Partners impact calculations in DSM Tracking, 2006 and in agreement with IPL 2014 EEP filing.

NFans Entered from application form.



357

Agriculture-Specific: Low-Pressure Irrigation

Measure Description Replacement or modification of an existing irrigation system with a more energy-efficient system.

Fuel Electric


Baseline Equipment Standard irrigation system.

Efficiency Qualification A new irrigation system reduces the pump pressure of an existing system by at least 50%.


Number of acres with low pressure irrigation system.




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Low-Pressure Irrigation

Where:

Acres = Number of acres with low-pressure irrigation system 134 = Per acre annual energy savings from low-pressure irrigation

system in kWh/acre = 134

ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Low-Pressure Irrigation

Where:

Annual kWh = Annual kWh savings from low-pressure irrigation system = Calculated CF = Agriculture Peak Coincidence Factor = 0.0001308

VARIABLE SOURCES:

Table 410. Low-Pressure Irrigation Algorithm Sources


Acres Entered from application form.

134 IPL Energy Efficiency Programs 2009 Evaluation, KEMA, Appendix F Program Evaluations Group 1 Vol 2; page 353.



358

Dairy Equipment: Automatic Milker Takeoff

Measure Description Installation of automatic milker takeoff, which automatically shuts off milking vacuum pump suction once a minimum flow rate has been achieved.

Fuel Electric

End Use Dairy Equipment

Baseline Equipment Existing dairy parlors with no previously existing automatic milker takeoff.

Efficiency Qualification Applies to existing dairy parlors which have not applied size upgrades or installed other vacuum system improvements.


-Number of milking cows. -Number of milkings per day.




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Automatic Milker Takeoff

Where:

kWh/Cow = Per cow annual energy savings from automatic milker takeoff = 50 NMilkings = Number of milkings per day = 2*

NCows = Number of milking cows per farm = 90* *Use provided default value only if value is not available. ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Automatic Milker Takeoff

Where:

Annual kWh = Annual kWh savings from automatic milker takeoff = Calculated CF = Agriculture Peak Coincidence Factor = 0.0001308

VARIABLE SOURCES:

Table 411. Automatic Milker Takeoff Algorithm Sources


kWh/Cow Alliant's Global Energy Partners impact calculations in DSM Tracking, 2006, and in agreement with IPL Energy Efficiency Programs 2009 Evaluation, KEMA. Appendix F Program Evaluations Group 1, Vol 2.

NCows Entered from application form; default value based on 2007 AG Census in IA. Average number of cows per farm = 215,391/2,390 = 90, p. 393: http://www.agcensus.usda.gov/Publications/2007/Full_Report/usv1.pdf

NMilkings Entered from application form; default value based on engineering judgment, Alliant's Global Energy Partners impact calculations in DSM Tracking, 2006.


http://www.agcensus.usda.gov/Publications/2007/Full_Report/usv1.pdf


359

Dairy Equipment: Dairy Scroll Compressor

Measure Description Installation of an efficient scroll compressor in place of a typical reciprocating compressor for dairy parlor milk refrigeration.

Fuel Electric


Baseline Equipment A typical reciprocating compressor for dairy parlor milk refrigeration.

Efficiency Qualification Scroll compressor must replace reciprocating compressor.


-Efficiency of new scroll compressor (EER). -Presence of precooler (yes or no). -Number of milking cows.




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Dairy Scroll Compressor

Where:

EERBase = Cooling efficiency of existing compressor in Btu/watt-hour = 8.4 EERscroll = Cooling efficiency of efficient scroll compressor in Btu/watt-hour = 10.5*

6 = Gallons of milk produced by one cow in a day = 6 365 = Number of days per year = 365

0.93 = Specific heat of milk in Btu/lb-°F = 0.93 8.7 = Density of milk in lb/gal = 8.7 ΔT = Required change in temperature (with precooler) in °F = 19

Required change in temperature (without precooler) in °F = 59 1,000 = Conversion factor from watts to kilowatts = 1,000 NCows = Number of cows = 90*

*Use provided default value only if value is not available. ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Dairy Scroll Compressor

Where:

Annual kWh = Annual kWh savings from dairy plate cooler milk precooler = Calculated CF = Agriculture Peak Coincidence Factor = 0.0001308


360

VARIABLE SOURCES:

Table 412. Dairy Scroll Compressor Algorithm Sources


EERBase IPL Energy Efficiency Programs 2009 Evaluation, KEMA, Appendix F Program Evaluations Group 1, Vol 2.

EERscroll Entered from application form; default value based on: IPL Energy Efficiency Programs 2009 Evaluation, KEMA, Appendix F Program Evaluations Group 1, Vol 2.

6 Gallons of milk produced by one cow in a day; based on: IPL Energy Efficiency Programs 2009 Evaluation, KEMA, Appendix F Program Evaluations Group 1, Vol 2.

ΔT IPL Energy Efficiency Programs 2009 Evaluation, KEMA, Appendix F Program Evaluations Group 1, Vol 2.

NCows Entered from application form; default value based on 2007 AG Census in IA. Average number of cows per farm = 215,391/2,390 = 90, p. 393: http://www.agcensus.usda.gov/Publications/2007/Full_Report/usv1.pdf




361

Dairy Equipment: Heat Reclaimer

Measure Description Purchase and Installation of milkhouse heat reclaimer to reduce waste heat from milk cooling compressor.

Fuel Electric


Baseline Equipment Milk cooling compressor and electric water heater; no existing heat reclaimer installed.

Efficiency Qualification -Equipment must be of one of the following brands: Century-Therm, Fre-Heater, Heat Bank, Sunset, Superheater and Therma-Stor. -Must have an electric water heater to achieve electric savings.


-Number of milking cows per farm. -Whether or not a milk precooler is installed: (Y/N).




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Heat Reclaimer

Where: Reclaimable Heat = Available from the milk and limited by usable heat of

existing equipment in Btuh/yr = See Table 413

EF = Energy factor of the electric water heater = 0.90* 1kW/3.412Btuh = Conversion factor from Btuh to kW = 1/3.412

NCows = Number of milking cows per farm = 90* *Use provided default value only if value is not available. ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Heat Reclaimer

Where:

Annual kWh = Annual kWh savings from heat reclaimer = Calculated CF = Agriculture Peak Coincidence Factor = 0.0001308


Table 413. Per-Cow Annual Energy Savings for Different Equipment Configurations

Equipment Type kWh/Cow (kWh/cow/year)

No precooler installed 468,791

Precooler installed 336,667


362

VARIABLE SOURCES:

Table 414. Heat Reclaimer Algorithm Sources


Reclaimable Heat IPL Energy Efficiency Programs 2009 Evaluation, KEMA, Appendix F Program Evaluations Group 1, Vol 2. In the absence of a precooler, the heat storage limits the usable heat.

EF Entered from application form; default value from: IPL Energy Efficiency Programs 2009 Evaluation, KEMA, Appendix F Program Evaluations Group 1, Vol 2.

NCows Entered from application form; default value from: 2007 AG Census in IA. Average number of cows per farm = 215,391/2,390 = 90, p. 393; http://www.agcensus.usda.gov/Publications/2007/Full_Report/usv1.pdf




363

Dairy Equipment: Milk Precooler—Dairy Plate Cooler

Measure Description Installation of plate-style milk precoolers on dairy parlor milk refrigeration systems.

Fuel Electric


Baseline Equipment Dairy parlor milk refrigeration systems, without an existing plate-style milk precooler.

Efficiency Qualification Installation of a plate-style milk precooler in a dairy parlor; no additional efficiency qualifications.


-Existing equipment type (installed alone, heat reclaimer installed, scroll compressor installed, or both heat reclaim and scroll compressor installed). -Number of cows.




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Milk Precooler—Dairy Plate Cooler

Where:

kWh/Cow = Per cow annual energy savings from plate-style milk precooler in kWh/cow/yr

= See Table 415

NCows = Number of milking cows per farm = 90* *Use provided default value only if value is not available. ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Milk Precooler—Dairy Plate Cooler

Where:

Annual kWh = Annual kWh savings from dairy plate cooler milk precooler = Calculated CF = Agriculture Peak Coincidence Factor = 0.0001308


Table 415. Per-Cow Annual Energy Savings for Different Equipment Configurations

Equipment Type kWh/Cow (kWh/cow/year)

Installed alone 84.4

Heat reclaimer installed 68.6

Scroll compressor installed 67.5

Both heat reclaimer and scroll compressor installed 54.9

Default if type not known 72.0


364

VARIABLE SOURCES:

Table 416. Dairy Plate Cooler Algorithm Sources


kWh/Cow IPL Energy Efficiency Programs 2009 Evaluation, KEMA, Appendix F Program Evaluations Group 1, Vol 2, page 352.

NCows Entered from application form; default value from: 2007 AG Census in IA. Average number of cows per farm = 215,391/2,390 = 90, p. 393: http://www.agcensus.usda.gov/Publications/2007/Full_Report/usv1.pdf




365

Dairy Equipment: Variable-Speed Drives for Dairy Vacuum Pumps/Milking Machines

Measure Description Installation of VFDs on dairy vacuum pumps or replacement of existing constant speed dairy vacuum pumps with dairy vacuum pumps with variable speed capabilities.

Fuel Electric


Baseline Equipment Constant speed dairy vacuum pumps.

Efficiency Qualification This measure applies only for blower-style pumps (not rotary-vane vacuum pumps).


-Number of milkings per cow per day. -Number of milking cows per farm.




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—VSD for Dairy Vacuum Pumps

Where:

16 = Annual energy savings per cow per milking from VSD dairy vacuum pump in kWh/cow/milking

= 16

NCows = Number of milking cows per farm = 90* *Use provided default value only if value is not available. ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—VSD for Dairy Vacuum Pumps

Where:

Annual kWh = Annual kWh savings from VSDs for Dairy Vacuum Pumps/Milking Machines

= Calculated

CF = Agriculture Peak Coincidence Factor = 0.0001308 VARIABLE SOURCES:

Table 417. VSDs for Dairy Vacuum Pumps/Milking Machines Algorithm Sources


16 Alliant's Global Energy Partners impact calculations in DSM Tracking, 2006, and in agreement with IPL Energy Efficiency Programs 2009 Evaluation, KEMA, Appendix F Program Evaluations Group 1, Vol 2.

NCows Entered from application form; default value from 2007 AG Census in IA. Average number of cows per farm = 215,391/2,390 = 90, p. 393: http://www.agcensus.usda.gov/Publications/2007/Full_Report/usv1.pdf




366

HVAC: Air Source Heat Pump

Measure Description Purchase and installation of air-source heat pump.

Fuel Electric

End Use HVAC

Baseline Equipment Air source heat pump compliant with Federal Code, 2006 and 2015, 10 CFR 430.32(c)(2) and 10 CFR 430.32(c)(3).


-Air Source Heat Pump <65 MBtuh: Minimum SEER efficiency of 14.5 and minimum HSPF efficiency of 8.2. -Air Source Heat Pump ≥65 and <135 MBtuh: Minimum EER efficiency of 11.3 and minimum COP efficiency of 3.4 (at 47°F db/43°F WB Outdoor Air) and 2.4 (at 17°F DB/15°F WB Outdoor Air). -Air Source Heat Pump ≥135 and <240 MBtuh: Minimum EER efficiency of 10.9 and minimum COP efficiency of 3.2 (at 47°F DB/43°F WB Outdoor Air) and 2.1 (at 17°F DB/15°F WB Outdoor Air). -Air Source Heat Pump ≥240 and <760 MBtuh: Minimum EER efficiency of 10.3 and minimum COP efficiency of 3.2 (at 47°F DB/43°F WB Outdoor Air) and 2.1 (at 17°F DB/15°F WB Outdoor Air).


-Equipment size (in MBtuh or tons). -Cooling efficiency (in SEER or EER). -Heating efficiency (in HSPF or COP).





Electric Savings kWh—Air Source Heat Pump <65 MBtuh—SEER and HSPF Rated

Where:

SEERBase = Seasonal Energy Efficiency Ratio Federal Baseline = 13* 14**

SEEREff = Seasonal Energy Efficiency Ratio of new high-efficiency system = Range (14.5 to 35) CAPC = Capacity of cooling system in MBtuh

CAPMBtuh = CAPtons × 12 = Range (4 to 65)

EFLHC = Equivalent Full Load Hours of cooling = 691 Unit = Number of rebated units

SFC = Cooling Savings factor for Quality Installation = 10.5% HSPFBase = Heating Seasonal Performance Factor Federal Baseline = 7.7*

8.2** HSPFEff = Heating Seasonal Performance Factor of new high-efficiency

system = Range (7.8 to 15)


367

CAPH = Capacity of heating system in MBtuh CAPMBtuh = CAPtons × 12

= Range (4 to 65)

EFLHH = Equivalent Full Load Hours of heating = 478 *Before 1/1/2015 **After 1/1/2015

Electric Savings kWh—Air Source Heat Pump ≥65 MBtuh—EER and COP Rated

Where:

EERBase = Energy Efficiency Ratio baseline = See Table 418 EEREff = Energy Efficiency Ratio of new high-efficiency system = (10.3 to 18)

COPBase = Coefficient of Performance of baseline efficiency system = See Table 418 COPEff = Coefficient of Performance of new high-efficiency system = See Table 418 3.412 = Conversion factor from Btu to kilowatts

ANNUAL ENERGY DEMAND ALGORITHM:

Electric Demand Savings Peak kW—Air Source Heat Pump

Where:

EERBase = Energy Efficiency Ratio baseline (all sizes) = See Table 418* EEREff = Energy Efficiency Ratio of new high-efficiency system (all sizes) = (9.8 to 16)

CF = Peak Coincidence Factor = 0.0001308 *For units less than 65 MBtuh in size, use EER 11.2 (before 1/1/2015) or EER 11.8 (after 1/1/2015).


Table 418. Air Source Heat Pump EER and COP for Units Greater Than or Equal to 65 MBtuh in Size

Heat Pump Size EERBase EEREff COPBase COPEff

≥65 and <135 11.0 11.3 3.3 3.4

≥135 and <240 10.6 10.9 3.2 3.2

≥240 and <760 9.5 10.3 3.2 3.2


368

VARIABLE SOURCES:

Table 419. Air Source Heat Pump Algorithm Sources



SEEREff Entered from application form or AHRI database. Range based on AHRI database.



HSPFEff Entered from application form or AHRI database. Range based on AHRI database.

CAPH Entered from application form or AHRI database; if not available, use cooling capacity as a proxy.



EERBase 11.2 EER: Calculated from SEERBase, methodology from NREL Building America Research Benchmark Definition 2009, Equation 4: EER = -0.02×SEER2+1.12 × SEER: http://www.nrel.gov/docs/fy10osti/47246.pdf

EEREff Entered from application form or AHRI database. Range based on AHRI database.

Table 418. Air Source Heat Pump EER and COP for Units Greater Than or Equal to 65 MBtuh in Size

Code of Federal Regulations, 10 CFR 430.32(c)(2); IECC 2009 Table 503.2.3(1).



369

HVAC: Heat Pump (Geothermal)

Measure Description

Geothermal heat pumps have higher energy efficiency ratio (EER) and coefficient of performance (COP) ratings than conventional air-source heat pump models. The baseline represents a standard efficiency air source heat pump.

Fuel Electric

End Use HVAC

Baseline Equipment Standard efficiency ASHP compliant with Federal Code, 2006 and 2015, 10 CFR 430.32(c)(2) (converted HSPF to COP, dividing HSPF by 3.412).

Efficiency Qualification Tier 1 Geothermal Heat Pump that is EER 14.0 and 3.0 COP. Tier 2 Geothermal Heat Pump that is EER 18.0 and 4.0 COP. Tier 3 Geothermal Heat Pump that is EER 23.0 and 5.0 COP.


-Application Type (Water-to-Water, Water-to-Air, Direct Geoexchange) -Equipment Type (Water-Loop Heat Pump, Ground-Water Heat Pump, Ground-Loop Heat Pump) -System Type (Open Loop, Closed Loop) -Equipment Size (in MBtuh or Tons) -Efficiency (EER and COP) -Installation date -Variable Speed Geothermal systems (Y/N)






Where:


EERFL-Eff = Rated full load Energy Efficiency Ratio of high-efficiency system =

See Table 420. Geothermal Heat Pump Efficient System Energy Efficiency Ratio and Coefficient of Performance

CAPFL-C = Rated full load capacity of cooling system in MBtuh (Tons × 12) = Range (4 to 240) EFLHC = Equivalent Full Load Hours of cooling = 691



370


COPFL-Eff = Rated full load Coefficient of Performance of efficient system =

See Table 420. Geothermal Heat Pump Efficient System Energy Efficiency Ratio and Coefficient of Performance

CAPH = Rated full load capacity of heating system in MBtuh (Tons × 12) = Range (4 to 240) EFLHH = Equivalent Full Load Hours of heating = 478 3.412 = Conversion factor from Btuh to watts = 3.412



Where:


= 0.5


= 0.5


= 0.85


= 0.15







371



EFLHC = Equivalent Full Load Hours of Cooling = 691 EFLHH = Equivalent Full Load Hours of Heating = 478 3.412 = Conversion Btuh per watt = 3.412




Where:




GSHP Type Application Type Minimum

EEREff Maximum

EEREff Minimum

COPEff Maximum

COPEff

Water-Loop Heat Pump Water-to-Air 14.0 27.2 3.0 9.4

Ground-Water Heat Pump Water-to-Air 14.0 59.7 3.0 7.4

Ground-Loop Heat Pump Water-to-Air 14.0 46.2 3.0 6.2

Water-Loop Heat Pump Water-to-Water 14.0 18.2 3.0 5.6

Ground-Water Heat Pump Water-to-Water 14.0 27.6 3.0 4.8

Ground-Loop Heat Pump Water-to-Water 14.0 24.3 3.0 4.0

Direct Geoexchange N/A 14.0 24.4 3.0 4.4

VARIABLE SOURCES:


372

Table 421. Geothermal Algorithm Sources


EERBase Calculated from SEERBASE, methodology from NREL Building America Research Benchmark Definition 2009, Equation 4: EER = -0.02×SEER2+1.12 × SEER. SEER based on Federal Code, 2006 and 2015, 10 CFR 430.32(c)(2) and 10 CFR 430.32(c)(3).

EERFL-Eff Entered from application form or AHRI database.

CAPFL-C Entered from application form or AHRI database. For heat pumps larger than 65 MBtuh, it is assumed multiple air-source heat pumps are installed that are less than 65 MBtuh maintaining the same baseline.

COPBase Federal Code, 2006 and 2015, 10 CFR 430.32(c)(2) (converted HSPF to COP, dividing HSPF by 3.412).

COPFL-Eff Entered from application form or AHRI database.

CAPFL-H Entered from application form or AHRI database. For heat pumps larger than 65 MBtuh, it is assumed multiple air-source heat pumps are installed that are less than 65 MBtuh maintaining the same baseline.


FLFH

PLFC


FLFC

EERPL-Eff Use the rated part load efficiency from application form or AHRI database

COPPL-Eff Use the rated part load efficiency from application form or AHRI database





Minimum range based on equipment qualifications. Maximum range based on AHRI database and rounded up by 15%, as of September 2013.


373

Lighting: LED and CFL Fixtures

Measure Description Installation of LED and CFL fixtures that require less power than conventional incandescent, fluorescent, and HID fixtures.

Fuel Electric

End Use Lighting

Baseline Equipment Incandescent, fluorescent, or HID technology lighting for given applications.


-All ENERGY STAR categories. -Outdoor fixtures: outdoor pole/arm-mounted, bollards, parking garage, fuel pump canopy, landscape/accent, architectural flood and spot luminaires. -Indoor fixtures: wall-wash, track or mono-point directional, high-bay, low-bay, and high-bay aisle luminaires. -All categories previously cited with retrofit kits are eligible. -Linear fluorescent replacement fixtures not eligible for prescriptive rebate. -For LED refrigerated case lights refer to separate rebate.


-Efficient fixture wattage. -Efficient fixture quantity. -Technology replaced by new fixture (incandescent, fluorescent, or HID technology). -Hours of use or building type group. -Application type (exterior or interior).




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—LED and CFL Fixtures

Where:

WM = Wattage Multiplier to convert efficient to baseline wattage = See Table 422 WEff = Wattage of efficient fixture

1,000 = Conversion factor from watts to kilowatts = 1,000 Hours = Annual lighting operating hours = See Table 423*

Nunits = Number of fixtures installed *Use provided default value only if value is not available. ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—LED and CFL Fixtures

Where:

Annual kWh = Annual kWh savings from LED/CFL fixture = Calculated CF = Agriculture Peak Coincidence Factor = 0.0001308


374



Measure Replaced Technology

New Construction WM -Incandescent WM - Fluorescent WM - HID

LED Fixtures 3.13 1.02 2.01 1.96

CFL Fixtures 3.13 1.02 2.01 1.96


End Use Hours

Agriculture 4,500

Exterior Lighting 4,000

VARIABLE SOURCES:

Table 424. LED and CFL Fixtures Algorithm Sources



-Incandescent WM based on ENERGY STAR-qualified lamp product database. -Fluorescent WM based on Design Light Consortium product database. -HID WM based the S/P ratio analysis by Howard Lighting, with reference to LBNL. -New construction WM based the Scotopic/Photopic [S/P] ratio analysis by Howard Lighting with reference to LBNL where PSMH is the assumed baseline.

WEff Entered from application form

Hours

Groups weighted by sales data from IPL reference to 2011 Assessment of Potential. Average of comparison table from CBECS 2003 Region 2-Division 4, CLEAResult Small Business IPL 2013 Assumptions, PA TRM 2013, MidAtlantic TRM 2013, Northwest Power Planning Council, the 6th Plan, IN TRM 2013. Results rounded. Industrial hours assume 7-day per week/16-hour per day, based on LBNL: Emerging Energy-Efficient Industrial Technologies Report, 2000. Agriculture hours based on conversations with Dave Warrington at IPL and other references documents from IPL's pervious EEPs.



375

Lighting: LED and CFL Lamps

Measure Description Installation of LEDs and CFLs that require less power than incandescent lamps.

Fuel Electric

End Use Lighting

Baseline Equipment Standard incandescent lamps; baseline wattages are based on EISA standards, effective 1/1/14.

Efficiency Qualification ENERGY STAR-qualified CFLs or LEDs.


-Efficient lamp wattage. -Efficient lamp quantity. -Hours of use or building type group. -Application type (exterior or interior).




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—LED and CFL Lamps

Where:

WBase = Wattage of baseline incandescent lamp = See Table 425 WEff = Wattage of efficient LED/CFL


Nunits = Number of lamps installed *Use provided default value only if value is not available. ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—LED and CFL Lamps

Where:

Annual kWh = Annual kWh savings from CFL/LED = Calculated CF = Agriculture Peak Coincidence Factor = 0.0001308


376



CFL/LED Wattage Range WBase

1-5 25

6-11 29

12-15 43

16-21 53

22-37 72

38-49 150

50-71 200


End Use Hours

Agriculture 4,500


VARIABLE SOURCES:

Table 427. LED/CFL Lamps Algorithm Sources


WBase Analysis of ENERGY STAR-qualified product list, 9/12/13: http://www.energystar.gov/index.cfm?c=products.pr_find_es_products

WEff Entered from application form.

Hours

Groups weighted by sales data from IPL reference to 2011 Assessment of Potential. Average of comparison table from CBECS 2003 Region 2-Division 4, CLEAResult Small Business IPL 2013 Assumptions, PA TRM 2013, MidAtlantic TRM 2013, Northwest Power Planning Council, the 6th Plan, IN TRM 2013. Results rounded. Industrial hours assume 7-day per week/16-hour per day, based on LBNL: Emerging Energy-Efficient Industrial Technologies Report, 2000. Agriculture hours based on conversations with Dave Warrington at IPL and other references documents from IPL's pervious EEPs.


http://www.energystar.gov/index.cfm?c=products.pr_find_es_products


377

Lighting: LED Exit Signs

Measure Description LED exit signs operate at lower wattages and last over 50,000 hours, while CFL exit signs operate at two to four times more power and have a shorter life.

Fuel Electric

End Use Lighting


Efficiency Qualification -Existing construction only. -Must replace incandescent or CFL exit sign. -Direct-install.


-Number of units. -Replacement exit sign type (CFL or incandescent). -Installed exit sign type (LED).



Program Agriculture Prescriptive Program


Where:


= 214


Where:

Annual kWh = Annual kWh savings from LED exit sign = Calculated CF = Peak Coincidence Factor = 0.0001308

VARIABLE SOURCES:



ExitSignSavings






378

Lighting: High-Efficiency Metal Halide

Measure Description Installation of pulse start or ceramic metal halide lamps, which require less power.

Fuel Electric

End Use Lighting

Baseline Equipment HID lighting with probe start fixture


-Must be pulse start or ceramic metal halide. -Must replace probe start fixtures. -The retrofit kit must include lamp and ballast. -Existing construction only.


-Efficient lamp wattage. -Efficient lamp quantity. -Building type.




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—High-Efficiency Metal Halide Lighting

Where:


1000 = Conversion factor from watts to kilowatts = 1000 Hours = Annual lighting operating hours = See Table 430*

Nunits = Number of efficient HID fixtures installed *Use provided default value only if value is not available. ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—High-Efficiency Metal Halide Lighting

Where:

Annual kWh = Annual kWh savings from efficient HID fixture = Calculated CF = Agriculture Peak Coincidence Factor = 0.0001308


379



Measure Standard HID—Wbase WEff

MH 32W 43 41

MH 50W 72 68

MH 70W 95 90

MH 100W 128 121

MH 150W 189 178

MH 175W 215 208

MH 250W 295 288

MH 400W 458 452

MH 750W 850 818

MH 1000W 1,080 1,066

MH 1500W 1,610 1,589


End Use Hours

Agriculture 4,500


VARIABLE SOURCES:

Table 431. High-Efficiency Metal Halide Algorithm Sources


WBase

Metal halide HID fixture with pulse start ballast, SCE 2013-2014 Table of Standard Fixture Wattages and Sample Lighting Table, Appendix B: http://www.aesc-inc.com/download/spc/2013SPCDocs/PGE/App%20B%20Standard%20Fixture%20Watts.pdf and reference to Building a Brighter Future: Your Guide to EISA-Compliant Ballast and Lamp Solutions from Philips Lighting: http://1000bulbs.com/pdf/advance%20eisa%20brochure.pdf


Hours Entered from application form or use default values. Groups weighted by sales data from IPL reference to 2011 Assessment of Potential. Agriculture hours based on conversations with Dave Warrington at IPL and other references documents from IPL's pervious EEPs.






380

Lighting: Heat Lamps

Measure Description Purchase and Installation of reduced wattage heat lamps to heat infant animals (especially pigs) during the summer months.

Fuel Electric

End Use Lighting

Baseline Equipment Standard wattage heat lamps.

Efficiency Qualification Wattage of the reduced wattage heat lamp must be less than or equal to 175 watts.


-Wattage of efficient lamp (in watts). -Number of units installed.




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Heat Lamps

Where: WBase = Wattage of baseline heat lamp = 250* WHVLS = Wattage of reduced wattage heat lamp = 175* Hours = Annual heat lamp operating hours = 2,000* 1,000 = Conversion factor from watts to kilowatts = 1,000 Nunits = Number of units installed = 50*

*Use provided default value only if value is not available. ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Heat Lamps

Where:

Annual kWh = Annual kWh savings from reduced wattage heat lamp = Calculated CF = Agriculture Peak Coincidence Factor = 0.0001308


381

VARIABLE SOURCES:

Table 432. Heat Lamps Algorithm Sources

Algorithm Inputs

Algorithm Sources

WBase Alliant's Global Energy Partners impact calculations in DSM Tracking, 2006, and in agreement with IPL Energy Efficiency Programs 2009 Evaluation, KEMA, Appendix F Program Evaluations Group 1, Vol 2.

WEff

Entered from application form; default value based on Wattage of efficient infrared Brooder fixture: http://www.farmtek.com/farm/supplies/cat1;ft_poultry_equipment;ft_poultry_brooders_heaters.html

Hours Entered from application form; default value based on 12 weeks of use during the summer (12 x 7 x 24 = 2,016), based on time between birth and weaning, 12 weeks is a conservative estimate: http://www.ag.auburn.edu/~chibale/sw05weaning.pdf

Nunits Entered from application form; default value based on engineering judgment. Average lamps per farm estimated based on reviewing IPL's 2010 and 2011 participant data.


http://www.farmtek.com/farm/supplies/cat1;ft_poultry_equipment;ft_poultry_brooders_heaters.html

http://www.farmtek.com/farm/supplies/cat1;ft_poultry_equipment;ft_poultry_brooders_heaters.html

http://www.ag.auburn.edu/~chibale/sw05weaning.pdf


382

Lighting: High Bay (HID) Delamping

Measure Description Delamping conducted done by removing unnecessary light bulbs or fixtures from areas producing greater-than-needed illumination.

Fuel Electric

End Use Lighting

Baseline Equipment T8 standard baseline, regardless of existing bulbs.


-Permanent lamp removal can be claimed if completed project results in a net reduction in the quantity of lamps. -Delamping requires removal of lamps/ballasts and unused lampholders from existing fixtures without replacing the lamps.


Wattage of delamped bulb (lamp wattage not fixture wattage that includes the ballast losses).




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—High Bay (HID) Delamping

Where:

WDelamp = Total wattage of delamped bulbs (sum of all lamps wattages) BF = Ballast factor to account for total fixture wattage = 1.1017

1,000 = Conversion factor from watts to kilowatts = 1,000 HOU = Annual lighting operating hours = See Table 433*

*Use provided default value only if value is not available ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings kW—High Bay (HID) Delamping

Where: Annual kWh = Annual kWh savings from T8/T12 delamping = Calculated

CF = Agriculture Peak Coincidence Factor = 0.0001308 ALGORITHM VARIABLES:


End Use Hours

Agriculture 4,500



383

VARIABLE SOURCES:

Table 434. High Bay (HID) Delamping Algorithm Sources


Wdelamp Entered from application form.

LF Determined via analysis based on SCE 2013-2014 Table of Standard Fixture Wattages and Sample Lighting Table, Appendix B: http://www.aesc-inc.com/download/spc/2013SPCDocs/PGE/App%20B%20Standard%20Fixture%20Watts.pdf

HOU Entered from application form or use default values. Groups weighted by sales data from IPL reference to 2011 Assessment of Potential. Agriculture hours based on conversations with Dave Warrington at IPL and other references documents from IPL's pervious EEPs.





384

Lighting: High-Bay Lighting

Measure Description Installation of lamps requiring less power with high-bay T8 or T5HO fixtures replacing high-bay HID fixtures.

Fuel Electric

End Use Lighting

Baseline Equipment EISA-compliant metal halide HID fixture with pulse start ballast after 2014.

Efficiency Qualification -High Bay T8 fluorescent lamp with electronic ballast (T8). -High Bay T5 high-output fluorescent lamp with electronic ballast (T5HO).


-Efficient lamp type (T8, T5HO). -Efficient lamp quantity. -Replaced lamp type (HID). -Building type.




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—High Bay Lighting

Where:

WBase = Wattage of baseline high-bay fixture = See Table 435 WEff = Wattage of efficient high-bay fixture = See Table 435


Nunits = Number of efficient high-bay lighting fixtures installed *Use provided default value only if value is not available ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—High-Bay Lighting

Where:

Annual kWh = Annual kWh savings from efficient high-bay fixture = Calculated CF = Agriculture Peak Coincidence Factor = 0.0001308


385



Measure Lamp

Quantity

WBase

WEff After 1/1/2015 Wbase—EISA Compliant Metal Halide HID

After 1/1/2015 Wbase—EISA Compliant Metal Halide HID

4' High Bay T8 3 189 178 112

4' High Bay T8 4 215 208 152

4' High Bay T8 5 295 288 189

4' High Bay T8 6 295 288 226

4' High Bay T8 8 370 365 302

4' High Bay T5 HO 3 235 232 179

4' High Bay T5 HO 4 295 288 234

4' High Bay T5 HO 5 370 365 294

4' High Bay T5 HO 6 405 400 351

4' High Bay T5 HO 8 513 506 468


End Use Hours

Agriculture 4,500


VARIABLE SOURCES:

Table 437. High-Bay Lighting Algorithm Sources


WBase

EISA compliant metal halide HID fixture with pulse start ballast, SCE 2013-2014 Table of Standard Fixture Wattages and Sample Lighting Table, Appendix B: http://www.aesc-inc.com/download/spc/2013SPCDocs/PGE/App%20B%20Standard%20Fixture%20Watts.pdf and reference to Building a Brighter Future: Your Guide to EISA-Compliant Ballast and Lamp Solutions from Philips Lighting: http://1000bulbs.com/pdf/advance%20eisa%20brochure.pdf

WEff Based on efficient lamp type and quantity entered from application form, SCE 2013-2014 Table of Standard Fixture Wattages and Sample Lighting Table, Appendix B: http://www.aesc-inc.com/download/spc/2013SPCDocs/PGE/App%20B%20Standard%20Fixture%20Watts.pdf

Hours Entered from application form; default values based on groups weighted by sales data from IPL reference to 2011 Assessment of Potential. Agriculture hours based on conversations with Dave Warrington at IPL and other references documents from IPL's pervious EEPs.








386

Lighting: High-Performance and Reduced-Wattage T8 Fixtures

Measure Description Installation of fluorescent lamps that require less power.

Fuel Electric

End Use Lighting

Baseline Equipment Standard T8 lamps.


-Fluorescent reduced-wattage T8 (RWT8) and ballasts packages replacing EISA-compliant fluorescent T12 or standard fluorescent T8 and ballasts packages. -Fluorescent high-performance T8 (HPT8) and ballasts packages replacing EISA-compliant fluorescent T12 or standard fluorescent T8 and ballasts packages. -Must have a ballast factor of less than 0.79 (BF < 0.79)


-Efficient lamp type (HPT8, RWT8). -Efficient lamp quantity. -Replaced lamp type (T12 or standard T8). -Building type.




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—HPT8/RWT8 Fixtures

Where:

WBase = Wattage of baseline fluorescent fixture = See Table 438 WEff = Wattage of efficient fluorescent fixture = See Table 438

1000 = Conversion factor from watts to kilowatts = 1000 Hours = Annual lighting operating hours = See Table 439*

Nunits = Number of efficient light fixtures installed *Use provided default value only if value is not available. ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—HPT8/RWT8 Fixtures

Where:

Annual kWh = Annual kWh savings from HPT8/RWT8 lamp fixture = Calculated CF = Agriculture Peak Coincidence Factor = 0.0001308


387



Measure Lamp Quantity Wbase

T8 Standard HPT8—WEff RWT8—WEff

HPT8/RWT8 (BF < 0.79) 1 31 27 21

HPT8/RWT8 (BF < 0.79) 2 59 54 42

HPT8/RWT8 (BF < 0.79) 3 89 76 63

HPT8/RWT8 (BF < 0.79) 4 112 105 84

HPT8/RWT8 (BF < 0.79) 6 175 156 126


End Use Hours

Agriculture 4,500


VARIABLE SOURCES:

Table 440. HTP8/RWT8 Fixtures Algorithm Sources


WBase SCE 2013-2014 Table of Standard Fixture Wattages and Sample Lighting Table, Appendix B: http://www.aesc-inc.com/download/spc/2013SPCDocs/PGE/App%20B%20Standard%20Fixture%20Watts.pdf

WEff Based on efficient lamp type and quantity, entered from application form; SCE 2013-2014 Table of Standard Fixture Wattages and Sample Lighting Table, Appendix B.

Hours Entered from application form; default values based on groups weighted by sales data from IPL reference to 2011 Assessment of Potential. Agriculture hours based on conversations with Dave Warrington at IPL and other references documents from IPL's pervious EEPs.





388

Lighting—Induction Lamp Replacement

Measure Description Installation of electrodeless induction lamps that require less power.

Fuel Electric

End Use Lighting



-Maximum wattage eligible is a 250-watt induction lamp. -One-for-one replacement of incandescent or HID fixtures, including mercury vapor, high-pressure sodium, and standard metal halide or pulse-start metal halide.* -Existing construction only.


-Efficient lamp wattage. -Efficient lamp quantity. -Replaced lamp wattage. -Replaced lamp quantity. -Building type.




* Metal halide standard will become effective January 1, 2015, but statutory deadline for the final rule was January 1, 2012.

DOE missed the deadline. The earliest standard can be effective is still January 2015, but may be later. Re-evaluate measure if code is enacted. ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Induction Lamp Replacement

Where:


1,000 = Factor to convert watts to kilowatts Hours = Annual lighting operating hours from the application = See Table 441 NUnits = Number of high-efficiency metal halide fixtures installed

ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Induction Lamp Replacement

Where:

Annual kWh = Annual kWh savings from metal halide lamp replacement = Calculated CF = Agriculture Peak Coincidence Factor = 0.00013081


389



Measure: Induction Rated Wattage Measure Category: Induction

Watts Range Fixture Wattage

WBase Fixture

Wattage WEff

200 180<W≤250 458 204

165 75<W≤180 397 168

120 75<W≤180 295 122

85 75<W≤180 215 87

70 W≤75 190 72

55 W≤75 128 56

40 W≤75 95 41

Average Wattage High Bin 180<W≤250 458 204

Average Wattage Medium Bin 75<W≤180 302 126

Average Wattage Low Bin W≤75 138 56


End Use Hours

Agriculture 4,500


VARIABLE SOURCES:

Table 443. Induction Lamp Replacement Algorithm Sources



WBase : Metal halide HID fixture wattage based SCE 2013-2014 Table of Standard Fixture Wattages and Sample Lighting Table, Appendix B: http://www.aescinc.com/download/spc/2013SPCDocs/PGE/App%20B%20Standard%20Fixture%20Watts.pdf and reference to Building a Brighter Future: Your Guide to EISA-Compliant Ballast and Lamp Solutions from Philips Lighting: http://1000bulbs.com/pdf/advance%20eisa%20brochure.pdf

WEff : Based on efficient lamp wattage entered from the application form, or use average wattage bins for default.


Entered from application form or use default values. Default values determined based on groups weighted by sales data from IPL reference to 2011 Assessment of Potential. Average of comparison table from CBECS 2003 Region 2-Division 4, CLEAResult Small Business IPL 2013 Assumptions, PA TRM 2013, MidAtlantic TRM 2013, Northwest Power Planning Council, the 6th Plan, IN TRM 2013. Results rounded. Industrial hours assume 7-day per week/16-hour per day based on LBNL: Emerging Energy-Efficient Industrial Technologies Report, 2000. Agriculture hours based on conversations with Dave Warrington at IPL and other references documents from IPL's pervious EEPs.



http://www.aescinc.com/download/spc/2013SPCDocs/PGE/App%20B%20Standard%20Fixture%20Watts.pdf

http://www.aescinc.com/download/spc/2013SPCDocs/PGE/App%20B%20Standard%20Fixture%20Watts.pdf



390

Lighting: Metal Halide Lamp Replacement

Measure Description Installation of metal halide miser lamps that require less power,

Fuel Electric

End Use Lighting

Baseline Equipment Lamp that is 400 watts or greater.

Efficiency Qualification -Must replace 400-watt lamp (or greater) with a ≤360-watt miser lamp. -Existing construction only.


-Efficient lamp wattage. -Efficient lamp quantity. -Replaced lamp quantity. -Building type.




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Metal Halide Lamp Replacement

Where:

WBase = Wattage of baseline HID fixture = 458* 452**

WEff = Wattage of efficient HID fixture = 412 1,000 = Conversion factor from watts to kilowatts = 1,000 Hours = Annual lighting operating hours = See Table 4441*

Nunits = Number of high-efficiency metal halide fixtures installed *Before 1/1/2015 **After 1/1/2015 ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Metal Halide Lamp Replacement

Where:

Annual kWh = Annual kWh savings from efficient HID fixture = Calculated CF = Agriculture Peak Coincidence Factor = 0.0001308



End Use Hours

Agriculture 4,500



391

VARIABLE SOURCES:

Table 445. Metal Halide Lamp Replacement Algorithm Sources


WBase

Metal halide HID fixture wattage, based on SCE 2013-2014 Table of Standard Fixture Wattages and Sample Lighting Table, Appendix B: http://www.aesc-inc.com/download/spc/2013SPCDocs/PGE/App%20B%20Standard%20Fixture%20Watts.pdf and reference to Building a Brighter Future: Your Guide to EISA-Compliant Ballast and Lamp Solutions from Philips Lighting: http://1000bulbs.com/pdf/advance%20eisa%20brochure.pdf


Hours Entered from application form or use default values. Groups weighted by sales data from IPL reference to 2011 Assessment of Potential. Agriculture hours based on conversations with Dave Warrington at IPL and other references documents from IPL's pervious EEPs.






392

Lighting: T8 or T12 Delamping

Measure Description Delamping conducted by removing unnecessary light bulbs or fixtures in areas producing greater-than-needed illumination.

Fuel Electric

End Use Lighting

Baseline Equipment T8 standard baseline, regardless of the existing bulb.


-Permanent lamp removal can be claimed if completed project results in a net reduction in the quantity of lamps. -Delamping requires removal of lamps/ballasts and unused lampholders from existing fixtures without replacing the lamps.


Linear feet of bulbs delamped.




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—T8 or T12 Delamping

Where:

Wremoved = Removed wattage per linear foot of lighting delamped = 7.2 1,000 = Conversion factor from watts to kilowatts = 1,000 HOU = Annual lighting operating hours = See Table 446*

LF = Linear feet of bulbs removed *Use provided default value only if value is not available. ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings kW—T8 or T12 Delamping

Where:

Annual kWh = Annual kWh savings from T8/T12 delamping = Calculated CF = Agriculture Peak Coincidence Factor = 0.0001308



End Use Hours

Agriculture 4,500



393

VARIABLE SOURCES:

Table 447. T8/T12 Delamping Algorithm Sources


Wremoved Based on a T8 standard wattage, from an engineering determination based on SCE 2013-2014 Table of Standard Fixture Wattages and Sample Lighting Table, Appendix B: http://www.aesc-inc.com/download/spc/2013SPCDocs/PGE/App%20B%20Standard%20Fixture%20Watts.pdf

LF Entered from application form.

HOU Entered from application form or use default values. Groups weighted by sales data from IPL reference to 2011 Assessment of Potential. Agriculture hours based on conversations with Dave Warrington at IPL and other references documents from IPL's pervious EEPs.





394

Lighting: Time Clocks and Timers for Lighting

Measure Description

-Savings captured by installing time clock controls to turn lights on and off at given times. -Typically time clocks control exterior lights used at night. -These exterior lights are turned off manually during work-week daylight hours by workers, but, during the weekend daylight hours, they are left on without a time clock. -A time clock serves to automatically shut the lights off during weekend daylight hours, saving approximately 24 hours of usage per weekend.

Fuel Electric

End Use Lighting

Baseline Equipment Manual switching of light, without time clock controls.

Efficiency Qualification -Commercial grade time clock to control light usage, installed as retrofit -Minimum 45 watts controlled -Existing Construction Only


-Total wattage controlled by time clock. -Annual operating hours of lamps before timer controls installed. -Annual hours spent in “on” mode of lamps controlled with timer controls.




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Time Clock Controls

Where: = Total wattage of lighting controlled by time clock

= Total annual operating hours of lamps without timer controls Annual hours spent in “on” mode of lamps controlled with

timer controls.

(OPHRSTotal – OPHHRSTimeClockHours) = 1,248* 1,000 = Factor to convert watts to kilowatts = Number of time clocks installed

*Use provided default value only if actual value is not available. ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Time Clock Controls

Where:

CF = Peak Coincidence Factor = 0


395

VARIABLE SOURCES:

Table 448. Time Clocks and Timers for Lighting Algorithm Sources


Wcontrolled Entered from application form.

OPHRSTotal Entered from application form or use default value assumption.

OPHRSTimeClockHours Entered from application form or use default value assumption.

Default OPHRSTotal & OPHRSTimeClockHours

DEER Update Study for SCE, p. 65 (report p. 3-13): http://www.calmac.org/publications/2004-05_DEER_Update_Final_Report-Wo.pdf

CF Default Savings Value Savings time period is on the weekend, and therefore does not overlap with peak time.



396

Motors: Enhanced Motors (Ultra-PE)

Measure Description

CEE premium-efficiency motors are more efficient than NEMA federal minimum efficiency levels, which became effective in December 2010. This measure specifically relates to HVAC motors and pumps, ranging from 1 hp to 350 hp. Greater than 350 hp use the Custom Program.

Fuel Electric

End Use Motors

Baseline Equipment Standard NEMA efficiency motors.


-Enhanced (Ultra-PE) Motors ≥1 and ≤15 hp; 1,200–3,600 RPM. -Enhanced (Ultra-PE) Motors ≥20 and ≤40 hp; 1,200–3,600 RPM. -Enhanced (Ultra-PE) Motors ≥50 and ≤100 hp; 1,200–3,600 RPM. -Enhanced (Ultra-PE) Motors ≥125 and ≤200 hp; 1,200–3,600 RPM. -Enhanced (Ultra-PE) Motors ≥250 and ≤350 hp; 1,200–3,600 RPM.

-See efficiency requirements from Table 449.

-Greater than 350 hp use custom program.


-Number of units. -Motor hp. -Motor speed (RPM). -Motor type (open drip proof, totally enclosed fan).




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Motor—Enhanced (Ultra-PE)

Where: MotorBase = Efficiency rating of standard baseline motor = See Table 449

MotorEff = Efficiency rating of new high-efficiency (CEE) motor = See Table 449 HP = Horsepower of new high-efficiency motor = (1 to 350)

0.746 = Conversion factor from horsepower to kW = 0.746 LF = Loading Factor = 0.75*

HOU = Annual operating hours, depending on hp size = See Table 450 Nunits = Number of units

*Use provided default value only if value is not available. ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Motor—Enhanced (Ultra-PE)

Where:

CF = Agriculture Peak Coincidence Factor = 0.0001308


397



Open Drip Proof (ODP) TEFC



Standard

IPL EFF Minimum

Efficiency (%)


Standard

IPL EFF Minimum

Efficiency (%)

1 3,600 77.0% 84.0% 77.0% 84.0%

1,800 85.5% 86.5% 85.5% 86.5%

1,200 82.5% 84.0% 82.5% 84.0%

1.5 3,600 84.0% 85.5% 84.0% 85.5%

1.5 1,800 86.5% 87.5% 86.5% 87.5%

1.5 1,200 86.5% 87.5% 87.5% 88.5%

2 3,600 85.5% 86.5% 85.5% 86.5%

1,800 86.5% 87.5% 86.5% 87.5%

1,200 87.5% 88.5% 88.5% 89.5%

3 3,600 85.5% 86.5% 86.0% 87.5%

3 1,800 89.5% 90.2% 89.5% 90.2%

3 1,200 88.5% 89.5% 89.5% 90.2%

5 3,600 86.5% 89.5% 88.5% 89.5%

1,800 89.5% 90.2% 89.5% 90.2%

1,200 89.5% 90.2% 89.5% 90.2%

7.5 3,600 88.5% 89.5% 89.5% 90.2%

7.5 1,800 91.0% 91.7% 91.7% 92.4%

7.5 1,200 90.2% 91.7% 91.0% 91.7%

10 3,600 89.5% 90.2% 90.2% 91.0%

1,800 91.7% 92.4% 91.7% 92.4%

1,200 91.7% 92.4% 91.0% 91.7%

15 3,600 90.2% 91.0% 91.0% 91.7%

15 1,800 93.0% 93.6% 92.4% 93.0%

15 1,200 91.7% 92.4% 91.7% 92.4%

20 3,600 91.0% 91.7% 91.0% 92.4%

1,800 93.0% 93.6% 93.0% 93.6%

1,200 92.4% 93.0% 91.7% 92.4%

25 3,600 91.7% 93.0% 91.7% 92.4%

25 1,800 93.6% 94.1% 93.6% 94.5%

25 1,200 93.0% 93.6% 93.0% 94.1%

30 3,600 91.7% 92.4% 91.7% 92.4%

1,800 94.1% 94.6% 93.6% 94.1%

1,200 93.6% 94.1% 93.0% 93.6%

40 3,600 92.4% 93.0% 92.4% 93.0%

40 1,800 94.1% 94.5% 94.1% 94.5%

40 1,200 94.1% 94.5% 94.1% 94.5%

50 3,600 93.0% 93.6% 93.0% 93.6%

1,800 94.5% 95.0% 94.5% 95.0%

1,200 94.1% 94.5% 94.1% 94.5%

60 3,600 93.6% 94.1% 93.6% 94.1%

60 1,800 95.0% 95.4% 95.0% 95.8%

60 1,200 94.5% 95.0% 94.5% 95.0%


398

Open Drip Proof (ODP) TEFC



Standard

IPL EFF Minimum

Efficiency (%)


Standard

IPL EFF Minimum

Efficiency (%)

75 3,600 93.6% 94.1% 93.6% 94.5%

1,800 95.0% 95.4% 95.4% 95.8%

1,200 94.5% 95.0% 94.5% 95.0%

100 3,600 93.6% 94.5% 94.1% 94.5%

100 1,800 95.4% 95.8% 95.4% 95.8%

100 1,200 95.0% 95.4% 95.0% 95.4%

125 3,600 94.1% 94.5% 95.0% 95.4%

1,800 95.4% 95.8% 95.4% 95.8%

1,200 95.0% 95.4% 95.0% 95.4%

150 3,600 94.1% 94.5% 95.0% 95.8%

150 1,800 95.8% 96.2% 95.8% 96.2%

150 1,200 95.4% 95.8% 95.8% 96.2%

200 3,600 95.0% 95.4% 95.4% 95.8%

1,800 95.8% 96.2% 96.2% 96.5%

1,200 95.4% 95.8% 95.8% 96.2%

250 3,600 94.5% 95.0% 95.4% 95.8%

250 1,800 95.4% 95.8% 95.0% 96.2%

250 1,200 95.4% 95.4% 95.0% 95.8%

300 3,600 95.0% 95.4% 95.4% 95.8%

1,800 95.4% 95.8% 95.4% 96.2%

1,200 95.4% 95.4% 95.0% 95.8%

350 3,600 95.0% 95.4% 95.4% 95.8%

350 1,800 95.4% 95.8% 95.4% 96.2%

350 1,200 95.4% 95.4% 95.0% 95.8%

400 3,600 95.4% 95.8% 95.4% 95.8%

1,800 95.4% 95.8% 95.4% 96.2%

1,200 95.8% 95.8%

450 3,600 95.8% 95.8% 95.4% 95.8%

450 1,800 95.8% 96.2% 95.4% 96.2%

450 1,200 96.2% 95.8%

500 3,600 95.8% 95.8% 95.4% 95.8%

1,800 95.8% 96.2% 95.8% 96.2%

1,200 96.2% 95.8%

Table 450. Mean Annual Operating Hours of Enhanced Motors


1-5 2,745

6-20 3,391

21-50 4,067

51-100 5,329

101-200 5,200

201-350 6,132


399

VARIABLE SOURCES:

Table 451. Enhanced Motors (Ultra-PE) Algorithm Sources



Full-load efficiencies for NEMA Standard Premium Efficiency Motor (EISA Standard, effective Dec. 2010). (1-200 hp full-load efficiencies for NEMA EPACT energy-efficient motors.) (250-500; EPAct 2005 requires all federal motor purchases to meet FEMP-designated performance requirements. FEMP has adopted requirements equivalent to these NEMA Premium specification levels.)

MotorEff Entered from application form.


LF 2008 Assessment of Potential (ratio between the actual load and the rated load; motor efficiency curves typically result in motors being most efficient at approximately 75% of the rated load; the default value is 0.75. PA 2013 TRM).





400

Motors: VFDs

Measure Description

Variable speed controls allow pump and fan motors to operate at lower speeds, while still maintaining setpoints during partial load conditions. Energy reduces when motor operation varies with load rather than runs at a constant speed.

Fuel Electric

End Use Motors

Baseline Equipment A typical reciprocating compressor for dairy parlor milk refrigeration.

Efficiency Qualification Application for motors 5 to 200 hp.


-Number of units. -Motor hp. -Motor speed (RPM). -Motor type (open drip proof or totally enclosed fan). -Motor efficiency (EFFmotor). -Application type (fan or pump).




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—VFDs

Where: HP = Horsepower of new or existing high-efficiency motor = (1 to 200)

EffMotor = Efficiency rating of motor being controlled by VFD = (50.0% to 98.0%) 0.746 = Conversion from horsepower to kW = 0.746

LF = Loading Factor = 0.75* SF = Savings Factor, depending on application type = Fan: 0.2129

Pump: 0.4175 Other: 0.1252

EFFVSD = Efficiency rating of VFD = 0.95 OPHRS = Annual operating hours, depending on hp size = See Table 452

Nunits = Number of units

*Use provided default value only if value is not available. ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—VFDs


401

Where: DSF = Demand Savings Factor, depending on application type =

Fan: 0.1387 Pump: 0.1495 Other: 0


Table 452. Mean Annual Operating Hours of VFDs


1-5 2,745

6-20 3,391

21-50 4,067

51-100 5,329

101-200 5,200

VARIABLE SOURCES:

Table 453. VFDs Algorithm Sources



EFFmotor Entered from application form or use default table below: "TABLE: Motor Efficiency Base %"

LF Ratio between the actual load and the rated load. Motor efficiency curves typically result in motors being most efficient at approximately 75% of the rated load. The default value is 0.75. PA 2013 TRM.

SF/DSF

Averaged VFD savings, based on application type. Percent's based on analysis, derived using a temperature BIN spreadsheet and typical heating, cooling, and fan load profiles. Analysis by UI and CL&P Program Savings Documentation for 2012 & 2011 Program Year, United Illuminating Company, September 2011.

EFFVSD Variable speed drive conversion efficiency can range from 90.0% to 99.0%, assuming average efficiency of 95%.





402

Ventilation: Circulating Fans

Measure Description Installation of a high-efficiency fans in place of inefficient fans used to circulate air in agricultural applications.

Fuel Electric

End Use Ventilation

Baseline Equipment Standard fans used to circulate air in agricultural applications.


-Must have a CFM/Watt greater than or equal to those specified in Table 454. -Fan-motor combinations must also be tested by: Air Movement and Control Association (AMCA) or Bioenvironmental and Structural Systems (BESS) lab at the University of Illinois. -Must be wired for 208- or 240-volt service.


-Fan diameter (in inches).




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—Circulating Fans

Where: CriculationSavings = Annual per unit savings depending on fan size = See Table 455

Nunits = Number of efficient fans installed ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—Circulating Fans

Where:

Annual kWh = Annual kWh savings from efficient circulating fans = Calculated CF = Agriculture Peak Coincidence Factor = 0.0001308


Table 454. CFM/Watt Requirements for Qualifying Circulating Fans

Fan Diameter (in.) IPL Minimum Efficiency (CMF/Watt)

12-23 10.7

24-35 11.5

36-47 19.0

48+ 21.5

50+ 21.5


403

Table 455. Annual Savings from Efficient Circulating Fans

Fan Diameter (in.) Circulation Savings (kWh/fan/year)

12-23 184

24-35 264

36-47 347

48+ 475

50+ 578

VARIABLE SOURCES:

Table 456. Circulating Fans Algorithm Sources


CirculationSavings

IPL Energy Efficiency Programs 2009 Evaluation, KEMA, Appendix F Program Evaluations Group 1, Vol 2. Savings represent the average of fans with efficiencies less than the program minimum and average efficiencies greater than the program minimum that are in the University of Illinois BESS Labs database: http://bess.illinois.edu/


http://bess.illinois.edu/


404

Ventilation: High-Volume, Low-Speed (HVLS) Fans

Measure Description Purchase and installation HVLS fans.

Fuel Electric

End Use Ventilation

Baseline Equipment Standard high-speed circulation fan.

Efficiency Qualification Qualifying fans must extend 16 feet or more in diameter.

Required Rebate Application Inputs Fan size (diameter) in feet.




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—High Volume, Low Speed Fans

Where: WBase = Wattage of a standard circulation fan based on fan size = See Table 457 WHVLS = Wattage of an HVLS fan based on fan size = See Table 457 Hours = Annual fan operating hours = 2099 1,000 = Conversion factor from watts to kilowatts = 1,000 NFans = Number of fans installed

ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW—High-Volume, Low-Speed Fans

Where:

Annual kWh = Annual kWh savings from high-volume, low-speed fan = Calculated CF = Agriculture Peak Coincidence Factor = 0.0001308


Table 457. Wattage of Standard and HVLS Fans Based on Fan Diameter

Fan Diameter (ft.) WBase WBase

16-17.99 761 4497

18-19.99 850 5026

20-23.99 940 5555

24+ 1119 6613


405

VARIABLE SOURCES:

Table 458. High-Volume, Low-Speed Fans Algorithm Sources


WBase IPL Energy Efficiency Programs 2009 Evaluation, KEMA, Appendix F Program Evaluations Group 1, Vol 2.

WHVLS IPL Energy Efficiency Programs 2009 Evaluation, KEMA, Appendix F Program Evaluations Group 1, Vol 2.

Hours Default of 2,099 hours. Alliant's Global Energy Partners impact calculations in DSM Tracking, 2006, and is in agreement with IPL Energy Efficiency Programs 2009 Evaluation, KEMA, Appendix F Program Evaluations Group 1, Vol 2.

NFans Entered from application form.



406

Ventilation: High-Efficiency Ventilation System

Measure Description Installation of ventilation systems equipped with high-efficiency fan and motor combinations keep livestock comfortable.

Fuel Electric

End Use Ventilation

Baseline Equipment Standard fans used to circulate air in agricultural applications.


-Must have a CFM/Watt greater than or equal to those specified in Table 459. -Fan-motor combinations must also be tested by: AMCA or BESS lab at the University of Illinois. -Must be wired for 208- or 240-volt service. -Fans motors must be at 0.05 static pressure.


-Fan diameter (in inches). -Existing conditions (with or without existing thermostat control). -Number of fans installed or controlled.




ANNUAL ENERGY SAVINGS ALGORITHM: Electric Savings kWh—High-Efficiency Ventilation System—Fan Only

Where: VentilationSavings = Annual per unit savings, depending on fan size = See Table 460

Nunits = Number of efficient fans installed ANNUAL ENERGY DEMAND ALGORITHM: Electric Demand Savings Peak kW— High-Efficiency Ventilation System—Fan Only

Where: Annual kWh = Annual kWh savings from efficient circulating fans = Calculated


Table 459. CFM/Watt Requirements for Qualifying Ventilation Systems

Fan Diameter (in.) IPL Minimum Efficiency (CMF/Watt)

14-23 10.1

24-35 13.5

36-47 17.4

48+ 20.3


407

Table 460. Annual Savings from High-Efficiency Ventilation Systems

Facility Type Fan Size (inches)

kWh/unit VentilationSavings

Baseline with Tstat Baseline without Tstat

All applications including: Sow House, Nursery, Finish House, Stall Barn, Cross-Ventilated of Free Stall Barn

14-23 325 533

24-35 578 766

36-47 693 917

48+ 1,121 1,484

VARIABLE SOURCES:

Table 461. High-Efficiency Ventilation System Algorithm Sources


Table 459. CFM/Watt Requirements for Qualifying Ventilation Systems

Based on the average of fans with efficiencies and CFM from University of Illinois BESS Labs database (1,014 products), data download August 2013: http://bess.illinois.edu/

VentilationSavings

Analysis based the average of fans with efficiencies and CFM from University of Illinois BESS Labs database (1,014 products), data download August 2013: http://bess.illinois.edu/ and IPL Energy Efficiency Programs 2009 Evaluation, KEMA, Appendix F Program Evaluations Group 1, Vol 2.





408

Appendix A: Peak Coincidence Factors Peak Coincidence Factors for different sectors, building types, fuel type, and end use, inferred from IPL 2011

Assessment of Potential, are presented in the following table.

Table A-1. Peak Coincidence Factors

Sector Building Groups Building Types Fuel End Use Peak Coincidence

Factor

Nonresidential All Commercial All Commercial Electric Cooking 0.0001687

Nonresidential All Commercial All Commercial Electric Cooling Chillers 0.0005260

Nonresidential All Commercial All Commercial Electric Cooling AC 0.0005400

Nonresidential All Commercial All Commercial Electric Ext Lighting 0.0002060

Nonresidential All Commercial All Commercial Electric Heat Pump 0.0001594

Nonresidential All Commercial All Commercial Electric HVAC Aux 0.0001797

Nonresidential All Commercial All Commercial Electric Lighting 0.0002080

Nonresidential All Commercial All Commercial Electric Other Plug Load 0.0001613

Nonresidential All Commercial All Commercial Electric Refrigeration 0.0001480

Nonresidential All Commercial All Commercial Electric Space Heat -

Nonresidential All Commercial All Commercial Electric Water Heat 0.0002063

Nonresidential Group 1 Grocery, Convenience Store, and Restaurant

Electric Cooking 0.0001732


Electric Cooling Chillers 0.0003599


Electric Cooling AC 0.0003599


Electric Ext Lighting 0.0001766


Electric Heat Pump 0.0001650


Electric HVAC Aux 0.0001404


Electric Lighting 0.0001580


Electric Other Plug Load 0.0001613


Electric Refrigeration 0.0001480


Electric Space Heat -


Electric Water Heat 0.0001375

Nonresidential Group 2 Lodging, Hospital, and Multifamily















409


Factor









Nonresidential Group 3 Health Clinic, Church, Warehouse, and Other Commercial






















Nonresidential Group 4 Education, Office, and Retail


Nonresidential Group 4 Education, Office and Retail













410


Factor









Nonresidential Group 5 Industrial Electric Cooking 0.0001308

Nonresidential Group 5 Industrial Electric Cooling Chillers 0.0001308

Nonresidential Group 5 Industrial Electric Cooling AC 0.0001308

Nonresidential Group 5 Industrial Electric Ext Lighting 0.0001308

Nonresidential Group 5 Industrial Electric Heat Pump 0.0001308

Nonresidential Group 5 Industrial Electric HVAC Aux 0.0001308

Nonresidential Group 5 Industrial Electric Lighting 0.0001308

Nonresidential Group 5 Industrial Electric Other Plug Load 0.0001308

Nonresidential Group 5 Industrial Electric Refrigeration 0.0001308

Nonresidential Group 5 Industrial Electric Space Heat -

Nonresidential Group 5 Industrial Electric Water Heat 0.0001308

Nonresidential Group 6 Agriculture Electric Cooking 0.0001308

Nonresidential Group 6 Agriculture Electric Cooling Chillers 0.0001308

Nonresidential Group 6 Agriculture Electric Cooling AC 0.0001308

Nonresidential Group 6 Agriculture Electric Ext Lighting 0.0001308

Nonresidential Group 6 Agriculture Electric Heat Pump 0.0001308

Nonresidential Group 6 Agriculture Electric HVAC Aux 0.0001308

Nonresidential Group 6 Agriculture Electric Lighting 0.0001308

Nonresidential Group 6 Agriculture Electric Other Plug Load 0.0001308

Nonresidential Group 6 Agriculture Electric Refrigeration 0.0001308

Nonresidential Group 6 Agriculture Electric Space Heat -

Nonresidential Group 6 Agriculture Electric Water Heat 0.0001308

Residential All Residential All Residential Electric Central Heat -

Residential All Residential All Residential Electric Cooling 0.001005

Residential All Residential All Residential Electric Heat Pump 0.000179

Residential All Residential All Residential Electric Lighting 0.000068

Residential All Residential All Residential Electric Plug Load 0.000114

Residential All Residential All Residential Electric Vent 0.000467

Residential All Residential All Residential Electric Water Heat 0.000099

Residential Manufactured Manufactured Electric Central Heat -

Residential Manufactured Manufactured Electric Cooling 0.000979

Residential Manufactured Manufactured Electric Heat Pump 0.000173

Residential Manufactured Manufactured Electric Lighting 0.000068

Residential Manufactured Manufactured Electric Plug Load 0.000115

Residential Manufactured Manufactured Electric Vent 0.000419

Residential Manufactured Manufactured Electric Water Heat 0.000100

Residential Multifamily Multifamily Electric Central Heat -

Residential Multifamily Multifamily Electric Cooling 0.000957

Residential Multifamily Multifamily Electric Heat Pump 0.000159

Residential Multifamily Multifamily Electric Lighting 0.000068

Residential Multifamily Multifamily Electric Plug Load 0.000114

Residential Multifamily Multifamily Electric Vent 0.000390

Residential Multifamily Multifamily Electric Water Heat 0.000100

Residential Single-family Single-family Electric Central Heat -

Residential Single-family Single-family Electric Cooling 0.001011

Residential Single-family Single-family Electric Heat Pump 0.000179


411


Factor

Residential Single-family Single-family Electric Lighting 0.000068

Residential Single-family Single-family Electric Plug Load 0.000114

Residential Single-family Single-family Electric Vent 0.000477

Residential Single-family Single-family Electric Water Heat 0.000099

Nonresidential All Commercial All Commercial Gas Cooking 0.0025901

Nonresidential All Commercial All Commercial Gas Space Heat Boiler

0.0116388

Nonresidential All Commercial All Commercial Gas Space Heat Furnace

0.0088353

Nonresidential All Commercial All Commercial Gas Space Heat Other

0.0083131

Nonresidential All Commercial All Commercial Gas Water Heat 0.0006821


Gas Cooking 0.0030737


Gas Space Heat Boiler

0.0108340


Gas Space Heat Furnace

0.0108340


Gas Space Heat Other

0.0110816


Gas Water Heat 0.0006851





0.0114922



0.0099541



0.0073946







0.0098081



0.0065453



0.0053412







0.0118434



0.0114418



0.0104525


412


Factor



Nonresidential Group 5 Industrial Gas Cooking -

Nonresidential Group 5 Industrial Gas Space Heat Boiler

-

Nonresidential Group 5 Industrial Gas Space Heat Furnace

-

Nonresidential Group 5 Industrial Gas Space Heat Other

-

Nonresidential Group 5 Industrial Gas Water Heat -

Nonresidential Group 6 Agriculture Gas Cooking -

Nonresidential Group 6 Agriculture Gas Space Heat Boiler

-

Nonresidential Group 6 Agriculture Gas Space Heat Furnace

-

Nonresidential Group 6 Agriculture Gas Space Heat Other

-

Nonresidential Group 6 Agriculture Gas Water Heat -

Residential All Residential All Residential Gas Central Heat 0.009615

Residential All Residential All Residential Gas Cooling -

Residential All Residential All Residential Gas Heat Pump 0.006567

Residential All Residential All Residential Gas Lighting 0.002850

Residential All Residential All Residential Gas Plug Load 0.002939

Residential All Residential All Residential Gas Vent 0.004167

Residential All Residential All Residential Gas Water Heat 0.002909

Residential Manufactured Manufactured Gas Central Heat 0.009348

Residential Manufactured Manufactured Gas Cooling -

Residential Manufactured Manufactured Gas Heat Pump 0.006564

Residential Manufactured Manufactured Gas Lighting 0.002851

Residential Manufactured Manufactured Gas Plug Load 0.002894

Residential Manufactured Manufactured Gas Vent 0.004443

Residential Manufactured Manufactured Gas Water Heat 0.002908

Residential Multifamily Multifamily Gas Central Heat 0.009032

Residential Multifamily Multifamily Gas Cooling -

Residential Multifamily Multifamily Gas Heat Pump 0.006621

Residential Multifamily Multifamily Gas Lighting 0.002853

Residential Multifamily Multifamily Gas Plug Load 0.002938

Residential Multifamily Multifamily Gas Vent 0.004320

Residential Multifamily Multifamily Gas Water Heat 0.002906

Residential Single-family Single-family Gas Central Heat 0.009703

Residential Single-family Single-family Gas Cooling -

Residential Single-family Single-family Gas Heat Pump 0.006567

Residential Single-family Single-family Gas Lighting 0.002849

Residential Single-family Single-family Gas Plug Load 0.002946

Residential Single-family Single-family Gas Vent 0.004138

Residential Single-family Single-family Gas Water Heat 0.002910


413

Appendix B: Equivalent Full Load Hours EFLH of HVAC Equipment for different sectors, building types, and end use (equipment type)—inferred from IPL

2011 Assessment of Potential—are presented in the table below.

Table B-1. Equivalent Full Load Hours of HVAC Equipment

Sector Building Groups Building Types Vintage End Use Equivalent Full

Load Hours

Nonresidential All Commercial All Commercial – Boiler 1,227

Nonresidential All Commercial All Commercial – Cooling Chillers 1,053

Nonresidential All Commercial All Commercial – Cooling AC 791

Nonresidential All Commercial All Commercial – Furnace 1,097

Nonresidential All Commercial All Commercial – Heat Pump—Cooling 691

Nonresidential All Commercial All Commercial – Heat Pump—Heating 478

Nonresidential All Commercial All Commercial – Space Heat 1,112


– Boiler 1,001


– Cooling Chillers 1,361


– Cooling AC 1,022


– Furnace 895


– Heat Pump—Cooling 995


– Heat Pump—Heating 471


– Space Heat 842


– Boiler 1,561




– Cooling AC 807


– Furnace 855


– Heat Pump—Cooling 1,006




– Space Heat 738


– Boiler 1,050


– Cooling Chillers 579


– Cooling AC 593


– Furnace 992


414


Load Hours






– Space Heat 1,035


– Boiler 1,191




– Cooling AC 851


– Furnace 1,196






– Space Heat 1,193

Nonresidential Group 5 Industrial – Boiler 1,227

Nonresidential Group 5 Industrial – Cooling Chillers 1,053

Nonresidential Group 5 Industrial – Cooling AC 791

Nonresidential Group 5 Industrial – Furnace 1,097

Nonresidential Group 5 Industrial – Heat Pump—Cooling 691

Nonresidential Group 5 Industrial – Heat Pump—Heating 478

Nonresidential Group 5 Industrial – Space Heat 1,112

Nonresidential Group 6 Agriculture – Boiler 1,227

Nonresidential Group 6 Agriculture – Cooling Chillers 1,053

Nonresidential Group 6 Agriculture – Cooling AC 791

Nonresidential Group 6 Agriculture – Furnace 1,097

Nonresidential Group 6 Agriculture – Heat Pump—Cooling 691

Nonresidential Group 6 Agriculture – Heat Pump—Heating 478

Nonresidential Group 6 Agriculture – Space Heat 1,112

Residential All Residential All Residential All Residential Cool Central 794

Residential All Residential All Residential All Residential Heat Central Boiler 689

Residential All Residential All Residential All Residential Heat Central Furnace 603

Residential All Residential All Residential All Residential Heat Pump 794

Residential All Residential All Residential All Residential Room AC 292

Residential All Residential All Residential All Residential Supplemental—Cooling 238

Residential All Residential All Residential All Residential Supplemental—Heating 1,588

Residential Manufactured Manufactured Existing Cool Central 764

Residential Manufactured Manufactured New Cool Central 449

Residential Manufactured Manufactured Existing Heat Central Boiler 714

Residential Manufactured Manufactured New Heat Central Boiler 465

Residential Manufactured Manufactured Existing Heat Central Furnace 627

Residential Manufactured Manufactured New Heat Central Furnace 452

Residential Manufactured Manufactured Existing Heat Pump—Cooling 764

Residential Manufactured Manufactured New Heat Pump—Cooling 449

Residential Manufactured Manufactured Existing Heat Pump—Heating 2,401

Residential Manufactured Manufactured New Heat Pump—Heating 2,019


415


Load Hours

Residential Manufactured Manufactured Existing Room AC 292

Residential Manufactured Manufactured New Room AC 292

Residential Manufactured Manufactured Existing Supplemental—Cooling 229

Residential Manufactured Manufactured New Supplemental—Cooling 135

Residential Manufactured Manufactured Existing Supplemental—Heating 1,681

Residential Manufactured Manufactured New Supplemental—Heating 1,413

Residential Multifamily Multifamily Existing Cool Central 650

Residential Multifamily Multifamily New Cool Central 445

Residential Multifamily Multifamily Existing Heat Central Boiler 738

Residential Multifamily Multifamily New Heat Central Boiler 606

Residential Multifamily Multifamily Existing Heat Central Furnace 520

Residential Multifamily Multifamily New Heat Central Furnace 371

Residential Multifamily Multifamily Existing Heat Pump—Cooling 650

Residential Multifamily Multifamily New Heat Pump—Cooling 445

Residential Multifamily Multifamily Existing Heat Pump—Heating 1,846

Residential Multifamily Multifamily New Heat Pump—Heating 1,561

Residential Multifamily Multifamily Existing Room AC 292

Residential Multifamily Multifamily New Room AC 292

Residential Multifamily Multifamily Existing Supplemental—Cooling 195

Residential Multifamily Multifamily New Supplemental—Cooling 133

Residential Multifamily Multifamily Existing Supplemental—Heating 1,292

Residential Multifamily Multifamily New Supplemental—Heating 1,093

Residential Single-family Single-family Existing Cool Central 811

Residential Single-family Single-family New Cool Central 484

Residential Single-family Single-family Existing Heat Central Boiler 686

Residential Single-family Single-family New Heat Central Boiler 630

Residential Single-family Single-family Existing Heat Central Furnace 612

Residential Single-family Single-family New Heat Central Furnace 532

Residential Single-family Single-family Existing Heat Pump—Cooling 811

Residential Single-family Single-family New Heat Pump—Cooling 484

Residential Single-family Single-family Existing Heat Pump—Heating 2,272

Residential Single-family Single-family New Heat Pump—Heating 2,160

Residential Single-family Single-family Existing Room AC 292

Residential Single-family Single-family New Room AC 292

Residential Single-family Single-family Existing Supplemental—Cooling 243

Residential Single-family Single-family New Supplemental—Cooling 145

Residential Single-family Single-family Existing Supplemental—Heating 1,590

Residential Single-family Single-family New Supplemental—Heating 1,512


416

Appendix C: Lighting Hours of Operation

Table C-1. Annual Lighting Hours of Operation by Building Group

Sector Building Groups* Building Types Hours of Operation

Nonresidential All Commercial All Commercial 3,806

Nonresidential Exterior Lighting All Commercial 4,000

Nonresidential Group 1 Grocery, Convenience Store, and Restaurant 5,211

Nonresidential Group 2 Lodging, Hospital, and Multifamily 5,126

Nonresidential Group 3 Health Clinic, Church, Warehouse, and Other Commercial 3,824

Nonresidential Group 4 Education, Office, and Retail 3,310

Nonresidential Group 5 Industrial 6,000

Nonresidential Group 6 Agriculture 4,500

Residential All Residential All Residential 985

Residential Exterior Lighting All Residential 1,424

*Groups weighted by sales data from IPL reference to 2011 Assessment of Potential.

Table C-2. Annual Lighting Hours of Operation by Building Type

IUA Building Types Hours of Operation

Education 2,600

Convenience 5,500

Grocery 5,500

Hospital 6,500

Health 4,000

Lodging 4,900

Warehouse 3,900

Large Office 3,200

Small Office 3,200

Restaurant 4,350

Large Retail 3,800

Small Retail 3,800

Other Commercial 3,700

Industrial 6,000

Agriculture 4,500


Residential—Indoor 985

Residential—Outdoor 1,424 Average of comparison table from CBECS 2003 Region 2-Division 4, CLEAResult Small Business IPL 2013 Assumptions, PA TRM

2013, MidAtlantic TRM 2013, Northwest Power Planning Council, the 6th Plan, IN TRM 2013. Results rounded. Industrial hours

assume 7-day per week/16-hour per day based on LBNL: Emerging Energy-Efficient Industrial Technologies Report, 2000.

Agriculture hours based on conversations with Dave Warrington at IPL and other references documents from IPL's pervious

EEPs. Residential lighting hours of operation is based on WECC documentation provided to IPL on 12/24/2013.


417

Appendix D: Nonresidential Hot Water Usage Table D-1. Annual Hot Water Usage by Building Group

Sector Building Groups* Building Types Fuel Usage [Gal/Gal]**

Nonresidential Group 1 Grocery, Convenience Store, and Restaurant Electric 825

Nonresidential Group 2 Lodging, Hospital, and Multifamily Electric 562

Nonresidential Group 3 Health Clinic, Church, Warehouse, and Other Commercial Electric 456

Nonresidential Group 4 Education, Office, and Retail Electric 566

Nonresidential Group 5 Industrial Electric 628

Nonresidential Group 6 Agriculture Electric 628

Nonresidential All Commercial All Commercial Electric 628

Nonresidential Group 1 Grocery, Convenience Store, and Restaurant Gas 803

Nonresidential Group 2 Lodging, Hospital, and Multifamily Gas 630

Nonresidential Group 3 Health Clinic, Church, Warehouse, and Other Commercial Gas 433

Nonresidential Group 4 Education, Office, and Retail Gas 594

Nonresidential Group 5 Industrial Gas 558

Nonresidential Group 6 Agriculture Gas 558

Nonresidential All Commercial All Commercial Gas 558

*Groups weighted by sales data from IPL reference to 2011 Assessment of Potential.

** Usage is annual hot water gallon use per gallon of installed water heater capacity.

Table D-2. Annual Hot Water Usage by Building Type

Building Type Annual Hot Water Usage in Gallons Annual Hot Water Gallons

per Tank Size Gallons

Convenience 11,593 681

Education 170,829 568

Grocery 75,818 681

Health 494,352 788

Large Office 254,575 511

Large Retail 53,519 681

Lodging 1,438,204 1,022

Restaurant 94,793 867

Small Office 4,891 511

Small Retail 26,230 681

Warehouse 29,233 681

Other Commercial 32,675 341

Annual hot water usage in gallons is based on CBECS (2003) consumption data of West North Central (removed outliers of 1,000

kBtuh or less) to calculate hot water usage. Annual hot water gallons per tank size gallons is based on the tank sizing

methodology found in ASHRAE 2011 HVAC Applications. Chapter 50 Service Water Heating. Demand assumptions (gallons per

day) for each building type based on ASHRAE Chapter 50 and to LBNL White Paper. LBL-37398 Technology Data Characterizing

Water Heating in Commercial Buildings: Application to End Use Forecasting.


418

Appendix E: Effective Useful Life of Measures Table E-1. Residential Prescriptive Rebate Program

End Use Measure Name EUL Sources

HVAC Central Air Conditioners

15 DEER, Summary of EUL Analysis, April 2008.

HVAC Desuperheater 10 Phone Calls to HVAC contractors, July 11, 2007.

HVAC Door 20 Scandinavian Windows and Doors; http://www.scandinavian-windows.co.uk/products.asp?MenuSystemID=1; (life is longer; reduced for model).

HVAC ECM 20

Codes and Standards Enhancement Initiative For PY2004: Title 20 Standards Development for PG&E. Source reference DOE 2002 and Appliance, 58, 9, September 2001: http://www.energy.ca.gov/appliances/2003rulemaking/documents/case_studies/CASE_Residential_Air_Handlr.pdf; also assume similar as Heat Central; DEER, Summary of EUL Analysis, April 2008.

HVAC Furnace 20 DEER 2008 EUL/RUL (Effective/Remaining Useful Life) Values. Measure life for the measure High Efficiency Furnace.

HVAC Heat Exchanger 10 Measure Life Report, Residential and Commercial/Industrial Lighting and HVAC Measures, GDS Associates, June 2007.

HVAC Heat Pump—Air Source

18 Measure Life Report, Residential and Commercial/Industrial Lighting and HVAC Measures, GDS Associates, June 2007.

HVAC Heat Pump—Geothermal


HVAC Heat Pump—MiniSplit 18 Measure Life Report, Residential and Commercial/Industrial Lighting and HVAC Measures, GDS Associates, June 2007.

HVAC HVAC System Tune-Up 3 Engineering judgment and used in previous studies. Range from one year to five years.

HVAC Programmable Thermostat

15

"Rebuilding For Efficiency: Improving the Energy Use of Reconstructed Residences in South Florida." Prepared for U.S. Department of Energy, Florida Energy Office, and Florida Power & Light Company, FSEC-CR-562-92, December 1992.

HVAC Room AC 9 DEER, Summary of EUL Analysis, April 2008. HVAC Whole-House Fan 20 DEER, Summary of EUL Analysis, April 2008. Water Heat Water Heater 13 DEER, Summary of EUL Analysis, April 2008.

http://www.scandinavian-windows.co.uk/products.asp?MenuSystemID=1


http://www.energy.ca.gov/appliances/2003rulemaking/documents/case_studies/CASE_Residential_Air_Handlr.pdf

http://www.energy.ca.gov/appliances/2003rulemaking/documents/case_studies/CASE_Residential_Air_Handlr.pdf


419

Table E-2. Nonresidential Prescriptive Rebate Program


Appliance Clothes Washer 7 RTF workbook; Commercial: Appliances—Clothes Washers: http://rtf.nwcouncil.org/measures/measure.asp?id=90

Appliance Commercial Dishwasher


Cooking Broiler 12 Energy Efficiency Policy Manual Version 2. By CPUC Energy Division, August 2003. Measure life for Cooking Equipment. Pg. 18.

Cooking Convection Oven 12 Energy Efficiency Policy Manual Version 2. By CPUC Energy Division, August 2003. Measure life for Cooking Equipment. Pg. 18.

Cooking Conveyor Oven 12 Energy Efficiency Policy Manual Version 2. By CPUC Energy Division, August 2003. Measure life for Cooking Equipment. Pg. 18.

Cooking Fryer 12 Energy Efficiency Policy Manual Version 2. By CPUC Energy Division, August 2003. Measure life for Cooking Equipment. Pg. 18.

Cooking Griddle 12 Energy Efficiency Policy Manual Version 2. By CPUC Energy Division, August 2003. Measure life for Cooking Equipment. Pg. 18.

Cooking Rotating Rack Oven

12 Energy Efficiency Policy Manual Version 2. By CPUC Energy Division, August 2003. Measure life for Cooking Equipment. Pg. 18.

Cooking Rotisserie Oven 12 Energy Efficiency Policy Manual Version 2. By CPUC Energy Division, August 2003. Measure life for Cooking Equipment. Pg. 18.

Cooking Steam Cooker 12 Energy Efficiency Policy Manual Version 2. By CPUC Energy Division, August 2003. Measure life for Cooking Equipment. Pg. 18.

Hotel KeyCards 15

Guest Room Occupancy Controls (2013 California Building Energy Efficiency Standards); pg. 9 (based on 2013 CEC LCC methodology): http://www.energy.ca.gov/title24/2013standards/prerulemaking/documents/current/Reports/Nonresidential/Lighting_Controls_Bldg_Power/2013_CASE_NR_Guest_Room_Occupancy_Controls_Oct_2011.pdf

HVAC Air Conditioning 15 DEER 2008 EUL/RUL (Effective/Remaining Useful Life) Values. Measure: Air Conditioners/Heat Pumps (split and unitary).

HVAC Boiler 20 DEER 2008 EUL/RUL (Effective/Remaining Useful Life) Values. Measure Life for the measure High-Efficiency Boiler.

HVAC Boiler Vent Damper


HVAC Chiller 20 DEER 2008 EUL/RUL (Effective/Remaining Useful Life) Values. Measure Life for the measure High-Efficiency Chillers.

HVAC Chiller Pipe Insulation


HVAC Duct Insulation 20 DEER, Summary of EUL Analysis, April 2008.

HVAC Duct Sealing and Repair


HVAC ECM Fan 15 DEER 2008 EUL/RUL (Effective/Remaining Useful Life) Values. Measure Life for the measure HVAC Fan Motors.

HVAC Furnace 20 DEER 2008 EUL/RUL (Effective/Remaining Useful Life) Values. Measure life for the measure High Efficiency Furnace.

HVAC Heat Pump—Air Source

15 DEER 2008 EUL/RUL (Effective/Remaining Useful Life) Values. Measure Life for the measure High-Efficiency Heat Pump.

HVAC Heat Pump—Geothermal (Ground Source)

15 DEER 2008 EUL/RUL (Effective/Remaining Useful Life) Values. Measure Life for the measure High-Efficiency Heat Pump.

HVAC Programmable 15 ENERGY STAR Lifecycle Cost Estimate for Programmable


http://www.energy.ca.gov/title24/2013standards/prerulemaking/documents/current/Reports/Nonresidential/Lighting_Controls_Bldg_Power/2013_CASE_NR_Guest_Room_Occupancy_Controls_Oct_2011.pdf





420


Thermostat Thermostat(s): http://www.energystar.gov/ia/business/bulk_purchasing/bpsavings_calc/CalculatorProgrammableThermostat.xls

HVAC Tune-Up 3 Typical: Engineering judgment and reviewed/used in previous studies. Trane says one year; other reports state up to five years.

Lighting Bi-Level Control 14

Measure Life Report, Residential and Commercial/Industrial Lighting and HVAC Measures, GDS Associates, June 2007. Measure life reflects the average between retrofit (13 years) and new construction (15 years) for Fluorescent Fixture.

Lighting Daylighting Controls

14

Measure Life Report, Residential and Commercial/Industrial Lighting and HVAC Measures, GDS Associates, June 2007. Measure life reflects the average between retrofit (13 years) and new construction (15 years) for HID (interior and exterior).

Lighting HE Metal Halide 14


Lighting HID Delamping 14

Measure Life Report, Residential and Commercial/Industrial Lighting and HVAC Measures, GDS Associates, June 2007. Measure life reflects the average between retrofit (13 years) and new construction (15 years) for fluorescent Fixture.

Lighting High Bay 14


Lighting HPT8-RWT8 14


Lighting Induction Lamps 14


Lighting LED Exit Sign 10 ENERGY STAR LED exit signs technical sheet: http://www.energystar.gov/ia/business/small_business/led_exitsigns_techsheet.pdf

Lighting LED Refrig Case Light

14


Lighting LED & CFL Fixtures

14


Lighting LEDs & CFLs 14


Lighting MH Lamp Replacement

14 Measure Life Report, Residential and Commercial/Industrial Lighting and HVAC Measures, GDS Associates, June 2007. Measure life reflects the average between retrofit (13 years) and new

http://www.energystar.gov/ia/business/bulk_purchasing/bpsavings_calc/CalculatorProgrammableThermostat.xls


http://www.energystar.gov/ia/business/small_business/led_exitsigns_techsheet.pdf



421


construction (15 years) for Fluorescent Fixture.

Lighting Occupancy Sensor 14


Lighting Time Clock Control

14


Lighting Traffic Lights 14


Lighting T8-T12 Delamping 15 Measure Life Report, Residential and Commercial/Industrial Lighting and HVAC Measures, GDS Associates, June 2007.

Motor Enhanced (Ultra-PE)

15 DEER 2008 EUL/RUL (Effective/Remaining Useful Life) Values. Measure life for the measure HVAC Fan Motors.

Motor VFDs 15 DEER 2008 EUL/RUL (Effective/Remaining Useful Life) Values. Measure life for the measure HVAC Fan Motors.

Office Computers 4

Efficiency Improvements in U.S. Office Equipment: Expected Policy Impacts and Uncertainties. Jonathan G. Koomey, Michael Cramer, MaryAnn Piette, and Joseph H. Eto. Ernest Orlando, LBNL. December 1995. LBNL-37383.

Office Network Mgmt 5 Northwest Power Planning Council, 6th Plan.

Office Server 9

Efficiency Improvements in U.S. Office Equipment: Expected Policy Impacts and Uncertainties. Jonathan G. Koomey, Michael Cramer, MaryAnn Piette, and Joseph H. Eto. Ernest Orlando Lawrence Berkeley National Laboratory. December 1995. LBNL-37383.

Pool Covers Pool-Spa 6

Illinois TRM v 2.0 (June, 2013); The effective useful life of a pool cover is typically one year longer than its warranty period. SolaPool Covers. Pool Covers Website, FAQ: "How long will my SolaPool cover blanket last?" Pool covers are typically offered with three- and five-year warranties with at least one company offering a six-year warranty. Conversation with Trade Ally. Knorr Systems

Refrigeration Anti-Sweat Ctrls 12 DEER 2008 EUL/RUL (Effective/Remaining Useful Life) Values.

Refrigeration ECM Display Cases

12 Similar to other case life times. PECI program experience by store size (small, medium, and large). NW 6th Power Plan.

Refrigeration ECM Walk-Ins 15 DEER 2005/CALMAC Report, September 2000.

Refrigeration Evap Fan Control 15 Efficiency Vermont Technical Reference User Manual (August 2013), pg. 151.

Refrigeration Glass Refg Freez 12 ENERGY STAR, FSTC research on available models, 2009

Refrigeration Night Covers 10 Econofrost FAQ webpage; http://www.econofrost.com/info/faq

Refrigeration Scroll Compressor 13 Efficiency Maine: Technical Reference User Manual No. 2007-1 Measure Savings Algorithms and Cost Assumptions, pg. 69.

Refrigeration Solid Refg Freez 12 ENERGY STAR Refrigerator savings calculator and ENERGY STAR Freezer savings calculator.

Refrigeration Strip Curtains 4 Measure Life Report, Residential and Commercial/Industrial Lighting and HVAC Measures, GDS Associates, June 2007 and previous studies.

Refrigeration Vending Controls 20 RTF workpaper; Commercial: Grocery—Vending Machine Controller: http://rtf.nwcouncil.org/measures/measure.asp?id=167

http://www.econofrost.com/info/faq



422


Refrigeration Vending Machine 10

Final Rule Technical Support Document (TSD): Energy Efficiency Standards for Commercial and Industrial Equipment: Refrigerated Bottled or Canned Beverage Vending Machines. Chapter 8: Life-Cycle Cost and Payback Period Analysis. Pg. 20.

Shell FoundationWall Insulation

25 Measure Life Report, Residential and Commercial/Industrial Lighting and HVAC Measures, GDS Associates, June 2007: http://www.ctsavesenergy.org/files/Measure Life Report 2007.pdf

Shell Infiltration Control

13 Engineering judgment; Measure life for infiltration control is assumed to be half of the measure life of insulation measure.

Shell Insulated Doors 20 Scandinavian Windows and Doors; http://www.scandinavian-windows.co.uk/products.asp?MenuSystemID=1; (life is longer; reduced for model).

Shell Roof Insulation 25 Measure Life Report, Residential and Commercial/Industrial Lighting and HVAC Measures, GDS Associates, June 2007.

Shell Wall Insulation 25 Measure Life Report, Residential and Commercial/Industrial Lighting and HVAC Measures, GDS Associates, June 2007.

Water Heat Condensing WH 13 Residential Heating Products Final Rule TSD. Chapter 8: Life-Cycle Cost and Payback Period Analyses. Pg. 13.

Water Heat Desuperheater 10 Phone calls to HVAC contractors, July 11, 2007.

Water Heat Drainwater Recovery

40 ReTherm Manufacturers Rated Life.

Water Heat Water Heater 13 Residential Heating Products Final Rule TSD. Chapter 8: Life-Cycle Cost and Payback Period Analyses. Pg. 13.

HVAC Package Terminal AC-HP: AC

15 DEER 2008 EUL/RUL (Effective/Remaining Useful Life) Values. Measure: Air Conditioners/Heat Pumps (split and unitary); assuming no measure life differences between PTACs and AC units.

HVAC Package Terminal AC-HP: HP

15 DEER 2008 EUL/RUL (Effective/Remaining Useful Life) Values. Measure life for the measure High-Efficiency Heat Pump (Assuming no lifetime differences between HP and PTHP).

http://www.ctsavesenergy.org/files/Measure%20Life%20Report%202007.pdf




423

Table E-3. Business Assessment Program


HVAC Programmable Thermostat

15

ENERGY STAR Lifecycle Cost Estimate for Programmable Thermostat(s): http://www.energystar.gov/ia/business/bulk_purchasing/bpsavings_calc/CalculatorProgrammableThermostat.xls

Lighting CFLs 2 Engineering calculation.

Lighting LED Exit Signs 10 ENERGY STAR LED exit signs technical sheet: http://www.energystar.gov/ia/business/small_business/led_exitsigns_techsheet.pdf

Refrigeration Vending Controls

20 RTF workpaper; Commercial: Grocery—Vending Machine Controller: http://rtf.nwcouncil.org/measures/measure.asp?id=167

Water Heat Faucet Aerator 10 DEER, Summary of EUL Analysis, April 2008.

Water Heat Low-Flow Showerhead


Water Heat Pre Rinse Sprayer Valve

5 Delaware Technical Resource Manual, April 2012. pg. 320.

Water Heat Water Heater Pipe Insulation


Water Heat Water Heater Temp Setback








424

Table E-4. Agriculture Prescriptive Rebates Program


Agriculture-Specific

Grain Dryers 20 Engineering judgment.


Livestock Waterers

10 Engineering judgment.


Low Pressure Irrigation

25

Economics of Irrigation Systems (Appendix Table 2A); ArgiLIFE Extension Texas A&M System: http://amarillo.tamu.edu/files/2011/10/Irrigation-Bulletin-FINAL-B6113.pdf

Dairy Equipment

Automatic Milker Takeoff

15 Engineering judgment.

Dairy Equipment

Dairy Scroll Compressor

20 Efficiency Maine: Technical Reference User Manual No. 2007-1 Measure Savings Algorithms and Cost Assumptions, pg. 85.

Dairy Equipment

Heat Reclaimer 15 Engineering judgment.

Dairy Equipment

Milk Precooler—Dairy Plate Cooler

15 DEER.

Dairy Equipment

Variable-Speed Drives for Dairy Vacuum Pumps/Milking Machines

15 DEER.

HVAC Air Source Heat Pumps


HVAC Geothermal Heat Pumps


Lighting CFLs/LEDs 2 Engineering Calculation (Cadmus).

Lighting CFLs/LEDs 11 Engineering Calculation (Cadmus).

Lighting HE Metal Halide 15 Measure Life Report, Residential and Commercial/Industrial Lighting and HVAC Measures, GDS Associates, June 2007.

Lighting Heat Lamps 10 Engineering judgment.

Lighting HID Delamping 14


Lighting High-Bay 15 Measure Life Report, Residential and Commercial/Industrial Lighting and HVAC Measures, GDS Associates, June 2007.

Lighting HTP8-RWT8 15 Measure Life Report, Residential and Commercial/Industrial Lighting and HVAC Measures, GDS Associates, June 2007.

Lighting Induction Lamps 2 DEER.

Lighting LED Exit Sign 10 ENERGY STAR LED exit signs technical sheet: http://www.energystar.gov/ia/business/small_business/led_exitsigns_techsheet.pdf

Lighting MH Lamp Replacement


Lighting T8-T12 Delamping


Lighting Time Clock Control

14 Measure Life Report, Residential and Commercial/Industrial Lighting and HVAC Measures, GDS Associates, June 2007. Measure life reflects

http://amarillo.tamu.edu/files/2011/10/Irrigation-Bulletin-FINAL-B6113.pdf

http://amarillo.tamu.edu/files/2011/10/Irrigation-Bulletin-FINAL-B6113.pdf




425


the average between retrofit (13 years) and new construction (15 years) for Fluorescent Fixture.

Motors Motors

Motors Variable-Speed/Frequency Drive

10 Council data.

Ventilation Circulating Fans 10 Engineering judgment.

Ventilation High Volume Low Speed Fans

25

Engineering judgment. HVLS fan manufacturers offer warranties that vary from 3 to 12 years for service life—based on this, measure life is assumed to be 15 years. (HVAC for Large Spaces: The Sustainable Benefits of HVLS (High Volume/Low Speed) Fans; McGraw Hill Construction: http://continuingeducation.construction.com/article_print.php?L=193&C=635)

Ventilation High-Efficiency Ventilation System

10 OPA Quasi-Prescriptive Measure Data.

http://continuingeducation.construction.com/article_print.php?L=193&C=635

http://continuingeducation.construction.com/article_print.php?L=193&C=635


426

Appendix F: Revision History Program End Use Measure Name Date Description of Change

interstate power and light savings reference manual - iowa utility

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