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SAVINGS ESTIMATIONTECHNICALREFERENCE MANUAL
2017
C A L I F O R N I A M U N I C I P A L U T I L I T I E S A S S O C I A T I O N
T H I R D E D I T I O N
151 N. Sunrise Ave. Suite 1108 Roseville, CA 95661
ERS
Contents ers
Savings Estimation TRM i ers
1. EXECUTIVE SUMMARY ..................................................................................................... 1-1
2. INTRODUCTION .................................................................................................................. 2-1 2.1 Purpose ......................................................................................................................................... 2-1 2.2 Background ................................................................................................................................... 2-1
2.2.1 What’s New in 2017 ................................................................................................................ 2-1 2.3 Approach ....................................................................................................................................... 2-2 2.4 Manual Organization ..................................................................................................................... 2-3 2.5 Manual Update Process ................................................................................................................ 2-4 2.6 Applicable State and Federal Codes ............................................................................................ 2-5
3. DEFINITIONS ...................................................................................................................... 3-1
4. COMMON DEFAULT FACTORS ........................................................................................ 4-1
5. HVAC MEASURES – NONRESIDENTIAL .......................................................................... 5-1 5.1 Commercial Air Conditioning Units and Heat Pumps ................................................................... 5-1
5.1.1 Unit Efficiency Ratings – 5 Tons and Smaller ........................................................................ 5-2 5.1.2 Unit Efficiency Ratings ‒ Greater Than 5 Tons ...................................................................... 5-3
5.2 Packaged Terminal Air Conditioners & Heat Pumps .................................................................... 5-4 5.2.1 Unit Efficiency Ratings ............................................................................................................ 5-5 5.2.2 Federal Code Efficiency Standards ........................................................................................ 5-5 5.2.3 Measure Cost ......................................................................................................................... 5-6
6. LIGHTING MEASURES – NONRESIDENTIAL ................................................................... 6-1 6.1 Semi-Custom Lighting and Lighting Control Measures ................................................................ 6-1
6.1.1 Lighting Control Default Savings Factor Table ....................................................................... 6-2 6.2 Reduced Wattage Lamp and Ballast ............................................................................................ 6-4
6.2.1 Energy Savings Table ............................................................................................................ 6-5 6.3 De-Lamp Fluorescent Fixture ....................................................................................................... 6-5 6.4 LED Lighting .................................................................................................................................. 6-7 6.5 LED Refrigerated Display Case Lighting ...................................................................................... 6-8
6.5.1 Energy Savings and Cost Table ‒ LED Display Case Lighting .............................................. 6-9 6.5.2 Energy Savings and Cost Table ‒ LED Display Case Lighting with Occupancy Sensor ..... 6-10
6.6 Bi-Level Lighting Fixture – Stairwells, Hallways, and Garages................................................... 6-10 6.7 Compact Fluorescent Lamps (Commercial and Residential) ..................................................... 6-11
6.7.1 Energy Savings and Cost Table – Lamps for Commercial Buildings ................................... 6-12 6.7.2 Energy Savings and Cost Table – High Bay Fixtures for Commercial Buildings ................. 6-12 6.7.3 Energy Savings and Cost Table – Residential CFL Lamps ................................................. 6-12
7. REFRIGERATION MEASURES – NONRESIDENTIAL ...................................................... 7-1 7.1 Commercial Ice Machines ............................................................................................................. 7-1 7.2 Commercial Solid Door & Glass Door Refrigerators ..................................................................... 7-2
7.2.1 Energy Savings Table ............................................................................................................ 7-3 7.2.2 Measure Cost Table ............................................................................................................... 7-3
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ii Savings Estimation TRM ers
7.3 EC Motor for Cold Storage Evaporator Fans ................................................................................ 7-4 7.4 Refrigerated Display Case EC Motor Retrofit ............................................................................... 7-5 7.5 EC Motor with Fan Cycling Controls for Cold Storage Evaporator Fans ...................................... 7-6
7.5.1 Energy Savings Table ............................................................................................................ 7-7 7.6 Strip Curtain Infiltration Barrier for Refrigerated Space ................................................................ 7-8
7.6.1 Energy Savings Table – Restaurant ....................................................................................... 7-9 7.6.2 Energy Savings Table – Grocery ........................................................................................... 7-9
7.7 Refrigerated Display Case with Doors ........................................................................................ 7-10 7.7.1 Energy Savings Table .......................................................................................................... 7-10
7.8 Auto-Closers for Main Cooler or Freezer Doors ......................................................................... 7-11 7.8.1 Energy Savings Table .......................................................................................................... 7-12
7.9 Anti-Sweat Heater Controls ........................................................................................................ 7-12 7.9.1 Energy Savings Table .......................................................................................................... 7-13
8. ALL OTHER NONRESIDENTIAL MEASURES .................................................................. 8-1 8.1 Pump and Fan Variable Frequency Drive Control ........................................................................ 8-1
8.1.1 Performance Curve Charts ..................................................................................................... 8-3 8.2 Vending Machine Controller .......................................................................................................... 8-4 8.3 Vending Machine Controller ‒ Non-Refrigerated .......................................................................... 8-5 8.4 Insulated Holding Cabinets ........................................................................................................... 8-6 8.5 Commercial Combination Oven .................................................................................................... 8-7 8.6 Commercial Electric Steam Cooker .............................................................................................. 8-8 8.7 Commercial Electric Convection Oven ......................................................................................... 8-9 8.8 Commercial Electric Fryer ........................................................................................................... 8-10 8.9 Commercial Electric Griddle ....................................................................................................... 8-11 8.10 Commercial Dishwasher ............................................................................................................. 8-12
8.10.1 Energy Savings Table .......................................................................................................... 8-12 8.10.2 Measure Cost Table ............................................................................................................. 8-14
8.11 High Efficiency Clothes Washers in Multifamily Properties ........................................................ 8-14 8.12 ENERGY STAR Uninterrupted Power Supply ............................................................................ 8-15 8.13 Plug-Load Occupancy Sensor .................................................................................................... 8-16 8.14 Smart Power Strip – Commercial Use ........................................................................................ 8-17 8.15 Kitchen Exhaust Hood Demand Ventilation Control System ...................................................... 8-18 8.16 Reflective Window Film ............................................................................................................... 8-19
9. HVAC MEASURES – RESIDENTIAL .................................................................................. 9-1 9.1 Residential Air Conditioners .......................................................................................................... 9-1
9.1.1 Code Baseline Efficiency Table .............................................................................................. 9-2 9.2 ENERGY STAR Room Air Conditioner ......................................................................................... 9-3
9.2.1 Energy Savings Table ............................................................................................................ 9-4 9.3 Whole-House Ventilation Fan ....................................................................................................... 9-5
9.3.1 Savings and Cost Table ......................................................................................................... 9-5 9.4 Duct Sealing .................................................................................................................................. 9-7
9.4.1 Energy Savings Table – at 20% Duct Leakage Reduction .................................................... 9-8 9.5 HVAC Tune-Up Measures ............................................................................................................ 9-8
9.5.1 Energy Savings Table – Refrigerant Charge .......................................................................... 9-9 9.5.2 Energy Savings Table – Coil Cleaning ................................................................................. 9-10 9.5.3 Energy Savings Table – Airflow Adjustment ........................................................................ 9-10
10. LIGHTING MEASURES – RESIDENTIAL ......................................................................... 10-1 10.1 LED Lights ................................................................................................................................... 10-1 10.2 LED Holiday Lights ...................................................................................................................... 10-2
10.2.1 Energy Savings Table .......................................................................................................... 10-3 10.2.2 Cost Table ............................................................................................................................ 10-3
Contents
Savings Estimation TRM iii ers
10.3 ENERGY STAR Ceiling Fan ....................................................................................................... 10-3
11. APPLIANCES – RESIDENTIAL ........................................................................................ 11-1 11.1 ENERGY STAR Refrigerator ...................................................................................................... 11-1
11.1.1 Energy Savings Table .......................................................................................................... 11-2 11.2 Refrigerator and Freezer Recycling ............................................................................................ 11-2 11.3 Heat Pump Water Heater ............................................................................................................ 11-3
11.3.1 Energy Savings Tables ......................................................................................................... 11-4 11.4 ENERGY STAR Dishwasher, Compact and Standard Size ....................................................... 11-5 11.5 High Efficiency Residential Clothes Washer ............................................................................... 11-6
11.5.1 Energy Savings Table .......................................................................................................... 11-7 11.6 ENERGY STAR Television ......................................................................................................... 11-8
11.6.1 Energy Savings and Cost Table ........................................................................................... 11-8 11.7 Heat Pump Clothes Dryers ......................................................................................................... 11-9
12. BUILDING ENVELOPE – RESIDENTIAL ......................................................................... 12-1 12.1 Ceiling Insulation ......................................................................................................................... 12-1
12.1.1 Energy Savings Table – Weighted Average for all HVAC Types ......................................... 12-2 12.1.2 Energy Savings Table – Air Source Heat Pump .................................................................. 12-3 12.1.3 Energy Savings Table – Electric Resistance Heating .......................................................... 12-4
12.2 Wall Insulation ............................................................................................................................. 12-5 12.2.1 Energy Savings Table .......................................................................................................... 12-6 12.2.2 Measure Cost Table ............................................................................................................. 12-6
12.3 Solar Attic Fan ............................................................................................................................. 12-6 12.3.1 Energy Savings Table .......................................................................................................... 12-7
12.4 Reflective Window Film ............................................................................................................... 12-8 12.4.1 Savings Table ....................................................................................................................... 12-8
12.5 Solar Screen ............................................................................................................................... 12-9 12.5.1 Savings Table ..................................................................................................................... 12-10
12.6 Reduced Building Leakage ....................................................................................................... 12-10 12.6.1 Savings Table ..................................................................................................................... 12-11
12.7 Energy Efficient Windows ......................................................................................................... 12-12 12.7.1 Energy Savings Table ........................................................................................................ 12-13
12.8 Radiant Barriers ........................................................................................................................ 12-13 12.8.1 Energy Savings Table ........................................................................................................ 12-14
13. ALL OTHER – RESIDENTIAL ........................................................................................... 13-1 13.1 Smart Power Strip ....................................................................................................................... 13-1 13.2 Variable Speed Residential Pool Pump ...................................................................................... 13-2
14. GAS MEASURES - NONRESIDENTIAL ........................................................................... 14-1 14.1 Tank Insulation ............................................................................................................................ 14-1
14.1.1 Energy Savings Table .......................................................................................................... 14-2 14.1.2 Measure Cost Table ............................................................................................................. 14-2
14.2 Hot Water and Steam Pipe Insulation ......................................................................................... 14-2 14.2.1 Energy Savings Table .......................................................................................................... 14-3 14.2.2 Measure Cost Table ............................................................................................................. 14-4
14.3 High Efficiency Commercial Gas Hot Water Heaters ................................................................. 14-5 14.3.1 Energy Savings Table .......................................................................................................... 14-5 14.3.1 Unit Efficiency Ratings .......................................................................................................... 14-6 14.3.2 Measure Cost Table ............................................................................................................. 14-6
14.4 Ozone Laundry ............................................................................................................................ 14-7 14.5 Steam Traps ................................................................................................................................ 14-8
Contents
iv Savings Estimation TRM ers
15. GAS MEASURES – RESIDENTIAL .................................................................................. 15-1 15.1 High Efficiency Residential Furnace & Boiler.............................................................................. 15-1
15.1.1 Energy Savings Table .......................................................................................................... 15-2 15.1.2 Unit Efficiency Ratings .......................................................................................................... 15-2 15.1.3 Measure Cost Table ............................................................................................................. 15-3
15.2 Domestic Hot Water Piping Insulation – Multifamily Recirculating System ................................ 15-3 15.3 Domestic Hot Water Heater ........................................................................................................ 15-4
15.3.1 Energy Savings Table .......................................................................................................... 15-5 15.4 Low-Flow Showerheads .............................................................................................................. 15-5 15.5 Faucet Aerators ........................................................................................................................... 15-6
16. CUSTOM MEASURE PROTOCOL ................................................................................... 16-1 16.1 Baseline Use in Estimating Energy Savings ............................................................................... 16-1
16.1.1 Baseline Examples ............................................................................................................... 16-2 16.1.2 Dual Baseline ....................................................................................................................... 16-3
16.2 Energy Savings Estimate Approach ........................................................................................... 16-3 16.3 Measure Description ................................................................................................................... 16-4 16.4 Savings Calculation Methods ...................................................................................................... 16-5
16.4.1 Engineering Model ................................................................................................................ 16-5 16.4.2 Model Transparency ............................................................................................................. 16-6 16.4.3 Measurement and Verification .............................................................................................. 16-6
16.5 Quality Assurance and Savings Validation ................................................................................. 16-6 16.6 Documentation ............................................................................................................................ 16-7
17. PROVISIONAL MEASURES ............................................................................................. 17-1 17.1 Web-Enabled Programmable Thermostats – Commercial Application ...................................... 17-2
17.1.1 Energy Savings Table – kWh per Ton of Cooling Capacity1 ................................................ 17-3 17.1.2 Energy Savings Table – kWh per Square Foot of Conditioned Area ................................... 17-3 17.1.3 Energy Savings Table – Therms per Ton of Cooling Capacity ............................................ 17-4 17.1.4 Energy Savings Table – Therms per Square Foot of Conditioned Area .............................. 17-4
17.2 Smart Thermostats – Residential ................................................................................................ 17-4 17.2.1 Energy Savings Table – kWh per Square Foot of Conditioned Area ................................... 17-6 17.2.2 Energy Savings Table – Therms per Square Foot of Conditioned Area .............................. 17-6
17.3 Tier II Advanced Power Strips – Residential .............................................................................. 17-7 17.4 Home Energy Reports – Residential ........................................................................................... 17-8 17.5 T8 LED Tube Lamp Replacement – Nonresidential ................................................................... 17-9
17.5.1 Energy Savings Table ........................................................................................................ 17-10 17.6 Tier II Advanced Power Strips – Nonresidential ....................................................................... 17-10 17.7 Task/Ambient Lighting and Occupancy-based Plug Load Control ........................................... 17-11
18. REFERENCES ................................................................................................................... 18-1
TECHNICAL REFERENCE MANUAL (TRM) SPREADSHEETS
1. TRM100_NONRES AC AND HP UNITS_V2 18 2014.XLSX
2. TRM101_NONRES PTAC_2 18 2014.XLSX
3. TRM102_REDUCED WATTAGE LAMP AND BALLAST_V3 15 2016.XLSX
4. TRM103_DELAMP FLUORESCENT LAMP_V3‐15‐2016.XLSX
5. TRM104_LED LIGHTING_V10‐1‐2017.XLSX
6. TRM105_LED REFRIGERATED CASE LIGHTING_V2 18 2014.XLSX
7. TRM106_FOOD SERVICE_V2 18 2014.XLSX
8. TRM107_EC MOTOR FOR WI COOLERS_V3 15 2016.XLSX
Contents
Savings Estimation TRM v ers
9. TRM108_EC MOTOR WITH CONTROLLER FOR WI COOLER_V3 15 2016.XLSX
10. TRM109_DISPLAY CASE EC MOTOR_V3 15 2016.XLSX
11. TRM110_STRIP CURTAINS_V2 18 2014.XLSX
12. TRM111_REFRIGERATED DISPLAY CASE WITH DOORS_V2 18 2014.XLSX
13. TRM112_AUTO DOOR CLOSERS_V2 18 2014.XLSX (INACTIVE)
14. TRM113_ASH CONTROLS_V2 18 2014.XLSX (INACTIVE)
15. TRM114_VENDING MACHINE CONTROLLER_NONREFRIGERATED_V2 182014.XLSX
16. TRM115_ENERGY STAR UPS_V2 18 2014.XLSX (INACTIVE)
17. TRM116_COMMERCIAL DISHWASHER_V4 28 2014.XLSX
18. TRM117 CFL_V3‐15‐2016.XLSX
19. TRM118 WINDOW FILM_NONRESIDENTIAL_V3‐15‐2016.XLSX
20. TRM200_RESIDENTIAL AC_V3‐15‐2016.XLSX
21. TRM201_ROOM AC_V2 18 2014.XLSX
22. TRM202_WHOLE HOUSE FAN_V2 18 2014.XLSX
23. TRM203_REDUCED BUILDING LEAKAGE_V2 18 2014.XLSX
24. TRM204_RESIDENTIAL LED_V3 15 2016.XLSX
25. TRM205_LED HOLIDAY LIGHTS_V3 15 2016.XLS
26. TRM206_RESIDENTIAL CEILING FANS_V2 18 2014.XLSX
27. TRM207_REFRIGERATOR RECYCLING_V10‐1‐2017.XLSX
28. TRM208_ENERGY STAR REFRIGERATORS_V3 15 2016.XLSX
29. TRM209_RES HOT WATER HEATER_V3 15 2016.XLSX
30. TRM210_RES ENERGY STAR DISHWASHER_V2 18 2014.XLSX
31. TRM211_ RESIDENTIAL CEILING INSULATION_V6 2 2016.XLSX
32. TRM211(A)_RESIDENTIAL CEILING INSULATION ELECTRIC HEAT_3‐15‐2016.XLSX
33. TRM212_WALL INSULATION_V2 18 2014.XLSX
34. TRM213_RESIDENTIAL SOLAR ATTIC FAN_V2 18 2014.XLSX
35. TRM214_VARIABLE SPEED RESIDENTIAL POOL PUMPS_V2 182014.XLSX
36. TRM215_ELECTRIC STORAGE WATER HEATER_OBSOLETE
37. TRM216_CLOTHES WASHER_EARLY RETIREMENT_V10 1 2015.
38. TRM216A_CLOTHES WASHER_NATURAL REPLACEMENT_V10 1 2017.XLSX
39. TRM217_MF CLOTHES WASHER_2 18 2014.XLSX
40. TRM218_RESIDENTIAL WINDOW FILM_V2 18 2014.XLSX
41. TRM219_RESIDENTIAL SOLAR SCREEN_V2 18 2014.XLSX
42. TRM220_HEAT PUMP CLOTHES DRYER_V3‐15‐2016.XLSX
43. TRM221_ENERGY STAR TELEVISIONS_TELEVISIONS_V3‐15‐2016.XLSX
44. TRM222_RESIDENTIAL WINDOW REPLACEMENTS_V3‐15‐2016.XLSX
45. TRM223_RADIANT BARRIERS_V3‐15‐2016.XLSX
46. TRM224_RESIDENTIAL_HVAC TUNE‐UP_REFRIGERATION CHARGE_V3‐15‐2016.XLSX
47. TRM225_RESIDENTIAL_HVAC TUNE UP_AIRFLOW ADJUSTMENT_V3‐15‐2016.XLSX
48. TRM226_RESIDENTIAL_HVAC TUNE UP_COIL CLEANING_V3‐15‐2016.XLSX
49. TRM300_PIPE INSULATION_V2 18 2014.XLSX
50. TRM301_MF DHW PIPE INSULATION_V2 18 2014.XLSX
51. TRM302_OZONE LAUNDRY_V2 18 2014.XLSX
52. TRM303_TANK INSULATION_V2 18 2014.XLSX
53. TRM304_COMMERCIAL DHW_V3 15 2016.XLSX
54. TRM305_RESIDENTIAL FURNACE_V3 15 2016.XLSX
Contents
vi Savings Estimation TRM ers
55. TRM306_LOW FLOW SHOWERHEADS_V2 18 2014.XLSX
56. TRM307_HEAT PUMP WATER HEATER_V2 18 2014.XLSX
57. TRM308_FAUCET AERATORS_V2 18 2014.XLSX
58. TRM400_ENERGY SAVINGS CALCULATOR_NONRES LIGHTING_V10‐1‐2017.XLSX
59. TRM401_ENERGY SAVINGS CALCULATOR_PUMP AND FAN VFD_V4 1 2014.XLSX
60. TRM402_ENERGY SAVINGS CALCULATOR_STEAM TRAPS_V4 2 2014.XLSX
61. TRM403_ENERGY SAVINGS CALCULATOR_DUCT SEALING_V2 18 2014.XLSX
62. TRM404_SIMPLIFIED NONRESIDENTIAL LIGHTING CALCULATOR_V10‐1‐2017.XLSX
63. TRM405_FAN VSD REBATE CALCULATOR_V3‐15‐2016.XLSX
64. TRM406_PARKING GARAGE FAN_VSD WITH CO2 SENSOR_V3‐15‐2016.XLSX
65. TRM407_PUMP VSD REBATE CALCULATOR_V3‐15‐2016.XLSX
66. TRM408_ENERGY SAVINGS CALCULATOR_ INT LIGHTING_CODE BASELINE_10‐1‐2017.XLSX
67. TRM 409_ENERGY SAVINGS CALCULATOR_EXT LIGHTING_CODE BASELINE_10‐1‐2017.XLSX
68. TRM500_WEB ENABLED PROGRAMMABLE THERMOSTAT_COMMERCIAL_V3‐15‐2016.XLSX
69. TRM501_SMART THERMOSTAT‐RESIDENTIAL_V3‐15‐2016.XLSX
70. TRM502_HOME ENERGY REPORTS_V3‐15‐2016.XLSX
71. TRM503_TIER II APS_RESIDENTIAL AND COMMERCIAL_V10‐1‐2017.XLSX
72. TRM504_T8 LED TUBE LAMP REPLACEMENT_V10‐1‐2017.XLSX
73. TRM 505_TASK AMBIENT LIGHTING AND PLUG LOAD ASSESSMENT TOOL_V10‐1‐2017.XLSX
Executive Summary 1
Savings Estimation TRM 1‐1 ers
1. EXECUTIVE SUMMARY
The savings estimation technical reference manual describes – for program administrators,
regulatory agencies, program evaluators, utility customers, and other interested stakeholders –
how California publicly owned utilities1 consistently, reliably, and transparently calculate
energy savings for their energy efficiency programs.
The reference manual provides the methods, formulas, and default assumptions used for
estimating energy savings and peak demand impacts from energy efficiency measures and
projects. The energy savings estimates are used to report program accomplishments and
measure progress towards program goals.
Energy efficiency measures are documented and classified as either unit energy savings
measures, provisional measures, semi‐custom measures, or custom measures. The manual
presents both nonresidential and residential measures. Each measure type is presented in
separate sections and grouped by technology type. Measure information is presented in a
consistent tabular format.
The reference manual also includes spreadsheets that provide detailed and transparent measure
calculations and, for certain semi‐custom measures, energy savings calculators for estimating
energy savings for project‐specific measures. The measure spreadsheet includes summary tables
for transferring measure savings data into the program’s regulatory compliance reporting tool.
The current 2017 version of the manual includes several updates, including: nonresidential
lighting measures, clothes washers, plug load occupancy sensors, and smart power strips. It also
includes the addition of two new provisional measures – Tier II advanced power strips for
nonresidential applications, and task/ambient lighting and plug load retrofit. Measure expiration
dates were added to all measures, and TRM spreadsheets were added or revised as needed.
1Utilities sponsoring the TRM include: Silicon Valley Power, City of Palo Alto Utilities, Alameda
Municipal Power, Biggs, Gridley, Healdsburg, Lodi Electric Utility, Lompoc, Plumas‐Sierra Rural Electric
Cooperative, Port of Oakland, Redding Electric Utility, Roseville Electric, Truckee Donner Public Utility
District, Ukiah Public Utility, Anaheim Public Utilities, Azusa Light & Water, Banning Electric Utility,
Burbank Water & Power, Cerritos, Colton Electric Utility, Glendale Water & Power, Imperial Irrigation
District, Los Angeles Department of Water & Power, Pasadena Water & Power, Riverside Public Utilities,
Vernon Light & Power, Sacramento Municipal Utility District, Victorville, Trinity Public Utility District,
Corona Department of Water & Power, Lassen Municipal Utility District, Moreno Valley Utility, Merced
Irrigation District, Modesto Irrigation District, Needles, Island Energy, Rancho Cucamonga Municipal
Utility, San Francisco Public Utilities Commission, and Turlock Irrigation District.
Introduction 2
Savings Estimation TRM 2‐1 ers
2. INTRODUCTION
The savings estimation technical reference manual describes – for program administrators,
regulatory agencies, program evaluators, utility customers, and other interested stakeholders –
how publicly owned utilities consistently, reliably, and transparently calculate energy savings
for their energy efficiency programs.
2.1 Purpose
The reference manual provides the methods, formulas, and default assumptions used for
estimating energy savings and peak demand impacts from energy efficiency measures and
projects. The energy savings estimates are used to report program accomplishments and
measure progress towards program goals.
2.2 Background
California publicly owned utilities annually report their program accomplishments to the
California Energy Commission. As mandated by California state law (SB1037, AB2021, Section
9505 of the Public Utilities Code), each utility reports its program energy savings on an annual
basis. Since 2006, California publicly owned utilities have collaborated to develop tools and
resources for consistently and reliably reporting program energy savings.
The first source of energy savings estimates used to report program savings was published in
2006 and subsequently updated in 2008 and 2009. In 2014, the previous versions of the manual
were superseded by a new version of the manual. The first update to the new manual was made
in 2016. In addition to a number of measure updates, provisional measures (Section 17) were
added to the manual.
2.2.1 What’s New in 2017
The current 2017 version of the manual includes the following key updates:
Measure status is added to each measure in the manual. The status indicates whether the
measure is currently active or inactive. If the measure is active, the expiration date of the
active status is provided. Measures listed as inactive are for reference only and should not
be used for estimating measure savings. When a measure’s active status expires, the
measure will be reviewed in the next manual update cycle. The measure savings estimates
may be used past the expiration date up to the time of the next manual update.
Semi‐custom lighting and lighting control measures (Section 6.1). The measure description
is updated and the savings calculators (TRM 400, TRM 404) were revised to enable
Section 2 Introduction
2‐2 Savings Estimation TRM ers
estimates of early retirement, dual baseline savings. In addition, two new energy savings
calculators have been added for estimating savings for interior and exterior lighting in
newly constructed buildings and renovated buildings where code is the appropriate
baseline.
LED lighting measures (Section 6.4). Measure applicability notes have been updated to
reflect code updates for general service lamps.
Auto‐closers for cooler and freezer doors (Section 7.8). The measure status is listed as
inactive. There are no updated savings estimates for auto‐closers. However, the measure
savings estimate could be used as the basis of a savings estimate for a custom measure
with project‐specific parameters.
Anti‐sweat heater controllers (Section 7.9). The measure status is listed as inactive. Anti‐
sweat heater assumptions are no longer valid. Savings for anti‐sweat heater controls
should be calculated as a custom measure.
ENERGY STAR UPS (Section 8.12). The measure status is listed as inactive. ENERGY
STAR UPS efficiencies are now met by most products on the market.
Plug load occupancy sensor (Section 8.13), Smart Power Strips (Section 8.14), and smart
power strips (Section 13.1). Measure cost data has been updated to reflect current
equipment costs.
Residential LED lights (Section 10.1). Application notes have been updated to reflect code
updates for general service lamps.
Refrigerator and freezer recycling (Section 11.2). Savings estimates expired in 2016 and the
updated savings estimates were not listed in the manual. Only a reference to the updated
savings was provided. The expired savings estimates were removed and the updated
estimates are now included.
Residential clothes washers (Section 11.5). New savings estimates are added for natural
replacement – code baseline measures. The preexisting savings estimates are still valid for
early retirement measures.
T8 LED lamp replacement (Section 17.5). Remaining useful life values for savings and
costs are added.
Tier II advanced power strips for nonresidential applications (Section 17.6). A new
provisional measure is added.
Task/ambient lighting and occupancy‐based plug load control (Section 17.7). A new
provisional measure is added.
2.3 Approach
The reference manual documents and classifies energy efficiency measures in three ways: unit
energy savings (UES) measures, provisional measures, semi‐custom measures, and custom
measures.
Introduction Section 2
Savings Estimation TRM 2‐3 ers
UES measures, previously defined as deemed savings measures, are normalized savings
estimates that represent the most typical savings expected from a range of similar measures.
These savings estimates are used for reporting savings at the program or at a regional level.
The UES measures provided in this manual are based on credible and reliable sources of
energy savings estimates and savings estimate parameters, generally those that have been
documented and vetted through either peer engineering review or a regulatory process
governing efficiency programs. As such, the UES savings estimates are based on the most
current and best available resources.
Semi‐custom measures are measures for which the savings estimates can vary significantly
depending on how or where the measure is used. Savings estimates are calculated using
standard methodologies based on project‐specific parameters. For semi‐custom measures, the
manual documents the savings methodology and may also provide a standardized savings
calculator for use in estimating energy savings.
Custom measures are project‐specific actions, equipment changes, or system improvements
that reduce energy consumption. This manual outlines a protocol for program administrators
to use that will consistently and reliably estimate and document energy savings estimates for
custom measures.
Provisional unit energy savings measures are measures that do not yet meet the reliability
standard of a UES measure. The most typical are emerging technology or newly‐adopted
program measures that exhibit significant energy saving potential. Provisional savings
estimates provide an interim solution for reporting measure savings while testing, evaluation,
or demonstration efforts are under way to validate energy savings estimates.
2.4 Manual Organization
The reference manual consists of both this document and its supporting spreadsheets.
The manual presents both nonresidential and residential measures. Each measure type is
presented in separate sections and grouped by technology type. Measure information is
presented in a consistent tabular format consisting of the following sections:
Measure summary information – Provides a brief description of the measure, its
applicability, savings type (UES, semi‐custom), energy savings, incremental measure cost,
and effective useful life (EUL)
Baseline and efficient case conditions – Defines the baseline type (see Section 3 –Definitions) and provides a brief description of the baseline and efficient case conditions.
Savings calculation – Documents the savings methodology and algorithms used to
estimate savings
Key parameters – Lists key operating parameters that have the most influence on energy
savings estimates
Section 2 Introduction
2‐4 Savings Estimation TRM ers
Quality assurance, design, installation, commissioning, and operation – Provides key quality assurance checks to help ensure that the estimated savings are realized
Important notes – Provide further explanation, clarifications, or relevant supporting information
All references and data resources are identified in the table footnotes.
As needed, each section also contains supplementary tables and charts to provide additional
measure details. Measures with multiple savings values (savings by size, building use, varying
levels of efficiency, etc.) will have savings and cost data listed in a supplementary table. If the
number of measures is too large to include in a supplementary table, they are listed in the
supporting spreadsheet summary table. The spreadsheet summary table allows measures to be
filtered by climate zone and, if applicable, by building type.
The last section of the manual provides the custom measure protocol, which outlines a process
for estimating and documenting custom measure savings.
The reference manual spreadsheets provide the detailed measure calculations. For UES
measures, the spreadsheet consists of a summary table, a calculation narrative, measure savings
calculations, and reference data. The summary table is constructed to provide easy transfer of
measure data into the program’s regulatory compliance reporting tool.
Energy savings calculators are also provided as part of the reference manual. The calculators
are Excel spreadsheet‐based engineering models for estimating semi‐custom measures per the
described methodology. They provide a simple and transparent approach for estimating
project‐specific energy savings.
2.5 Manual Update Process
In order to maintain the most current and best available estimates of energy savings, the
reference manual should be reviewed and updated on a regular basis. Measures should be
reviewed to determine if newly adopted code changes will affect the energy savings estimates.
Measure savings estimates may need to be updated based on new sources of information, such
as market research studies, technology studies, or program impact evaluation reports. In
addition, assumptions used in the measure baseline definitions may over time become obsolete
or otherwise no longer applicable.
Manual review and updates to incorporate code changes should occur on an annual basis, or at
the time when code updates go into effect. Updates for measures which represent a significant
amount of program energy savings should occur on an annual basis. Manual updates to
incorporate the most current and best available information for all measures should occur every
2 to 3 years.
Introduction Section 2
Savings Estimation TRM 2‐5 ers
2.6 Applicable State and Federal Codes
Within each measure description, the measure savings estimate baseline is described. Where the
appropriate baseline is determined to be code, the applicable state or federal code is identified.
The codes used in determining savings estimate baselines include:
California Appliance Efficiency Regulations (California Code of Regulations, Title 20, sections 1601‒1608). The 2012, 2015, and 2016 versions of the code are referenced.
California Building Energy Efficiency Standards for Residential and Nonresidential
Buildings (California Code of Regulations, Title 24, part 6 and associated administrative
regulations, part 1). The 2013 and 2016 versions of the code are referenced.
Department of Energy Code of Federal Regulations, Title 10
Definitions 3
Savings Estimation TRM 3‐1 ers
3. DEFINITIONS
In this manual, the following definitions apply:
custom measure – Any measure not defined by this manual as either a unit energy savings
measure or a semi‐custom measure. In more general terms, a custom measure is defined as an
energy‐related project, action, equipment change, or system improvement that reduces energy
consumption.
effective useful life (EUL) – An estimate of the median number of years (from a statistically
representative sample) that an installed measure is expected to be operable and capable of
performing its intended function. The primary source of EUL is the California Public Utilities
Commission’s Database for Energy Efficient Resources (DEER).
efficient case – Describes the affected equipment or system condition after an energy efficiency
measure has been implemented or installed. Also referred to as the post‐retrofit condition.
energy use baseline – Energy use that is compared to the efficient case energy use for the
purposes of estimating future annual energy savings. The baseline is identified as being one of
the four following types:
natural replacement – code – Describes an energy use baseline that is based on current
minimum energy efficiency code requirements as established by the applicable local,
state, or federal jurisdiction.
natural replacement – current practice – Describes an energy use baseline that is based
on standard industry practice or market availability.
natural replacement – preexisting conditions – Describes the projected energy use
baseline that is based on the energy performance of the existing systems or
equipment that was in place before a measure was implemented. This baseline is
applicable if retaining the preexisting conditions over the entire effective useful life
of the measure is a realistic option.
dual baseline – early retirement – Describes the use of two energy use baselines to
determine energy savings where equipment with remaining useful life (RUL) is
replaced. In general, the first baseline is based on preexisting conditions and the
second baseline is one of the three types of natural replacement. See Section 16.1 for
a description of how a dual baseline is used in estimating measure cost‐effectiveness.
measure cost – The incremental cost of implementing the energy savings measure. For
measures with an adjusted baseline, it is the incremental cost of the more‐efficient measure
Section 3 Definitions
3‐2 Savings Estimation TRM ers
compared to the cost of a code‐compliant or current practice measure. For a preexisting
baseline, it is the full implementation cost of the measure. Installation costs not directly
associated with the energy savings measure are not included.
peak demand – The California grid‐level average hourly peak demand occurring during a 3‐
hour period (2:00 p.m. – 5:00 p.m.) on a summer weekday from June to September. It also can be
defined for weather‐sensitive measures as the maximum hourly peak demand occurring
between 2:00 p.m. and 5:00 p.m. during 3 consecutive weekdays containing the weekday with
the hottest temperature of the year.
semi‐custom measure – An energy savings measure for which the savings estimates varies
significantly depending on how or where the measure is used (project‐specific parameters).
Semi‐custom measure savings are calculated using standard methodologies or standardized
saving estimate models (e.g., spreadsheet models).
UES measure – A unit energy savings measure that has unitized savings estimates (e.g., savings
per motor, savings per hp) that represent an average or weighted average of similar savings
measures. UES measures were previously known as deemed savings measures.
The UES measures provided in this manual are based on credible and reliable sources of
energy savings estimates and savings estimate parameters, generally those that have been
documented and vetted through either peer engineering review or a regulatory process
governing efficiency programs.
provisional measure – A measure that does not meet the reliability standard of a UES
measure. The most typical are emerging technology or newly adopted program measures that
exhibit significant energy saving potential. Provisional savings estimates provide an interim
solution for reporting measure savings while testing, evaluation, or demonstration efforts are
under way to validate energy savings estimates.
Common Default Factors 4
Savings Estimation TRM 4‐1 ers
4. COMMON DEFAULT FACTORS
This section provides the default values used in estimating energy savings for UES and semi‐
custom lighting measures. Three default values are used: HVAC interactive effect, operating
hours, and peak demand factors.
Energy efficient lighting measures reduce the internal heat gain of air‐conditioned spaces. This
reduction in heat gain reduces the cooling energy consumption and increases heating energy
consumption. Default interactive effect factors have been developed as part of the DEER
resources2 to account for these interactions in typical building end‐use types. These default
interactive effects are used in the savings estimates for UES and semi‐custom measures
provided in this manual.
Tables 4‐1 through 4‐4 provide the air‐conditioning cooling interactive effect factors (HVAC IE
factors) used for lighting measures.
2 DEER, Lighting HVAC Interactive Effects_9 Sept 2013.xls
Section 4 Common Default Factors
4‐2 Savings Estimation TRM ers
Table 4-1 HVAC IE Factors for Climate Zones 2, 3, 4, and 5
Building Type
CZ02 CZ03 CZ04 CZ05
Energy Demand Energy Demand Energy Demand Energy Demand
Assembly 1.03 1.18 1.02 1.18 1.05 1.18 1.03 1.17
Primary school 1.06 1.00 1.07 1.00 1.08 1.62 1.06 1.23
Secondary school 1.04 1.00 1.04 1.00 1.07 1.32 1.04 1.22
Community college 1.09 1.20 1.08 1.12 1.11 1.36 1.08 1.22
University 1.10 1.20 1.10 1.14 1.12 1.27 1.10 1.23
Relocatable classroom 1.02 1.00 1.00 1.00 1.05 1.22 1.02 1.26
Grocery 0.91 1.19 0.87 1.18 0.94 1.24 0.87 1.17
Hospital 1.10 1.19 1.11 1.16 1.11 1.22 1.09 1.19
Nursing home 1.03 1.19 1.02 1.13 1.05 1.24 1.01 1.14
Hotel 0.97 1.23 0.98 1.20 1.01 1.24 0.97 1.21
Motel 1.02 1.21 1.03 1.19 1.05 1.22 1.02 1.20
Bio/tech mfg. 1.11 1.19 1.12 1.14 1.12 1.15 1.11 1.18
Light industrial mfg. 1.04 1.17 1.04 1.11 1.05 1.15 1.03 1.17
Large office 1.11 1.26 1.11 1.16 1.12 1.28 1.10 1.23
Small office 1.05 1.20 1.05 1.13 1.07 1.24 1.06 1.19
Sit-down restaurant 1.01 1.21 1.00 1.18 1.04 1.20 1.00 1.19
Fast-food restaurant 1.03 1.17 1.02 1.14 1.05 1.18 1.02 1.15
Department store 1.07 1.19 1.08 1.19 1.09 1.20 1.08 1.18
Big box retail 1.06 1.19 1.06 1.19 1.08 1.20 1.06 1.19
Small retail 1.06 1.18 1.06 1.17 1.08 1.19 1.06 1.17
Conditioned storage 0.95 1.21 0.92 1.01 0.98 1.26 0.91 1.15
Unconditioned storage 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Refrig. warehouse 1.59 1.32 1.63 1.29 1.62 1.32 1.58 1.26
Exterior 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Common Default Factors Section 4
Savings Estimation TRM 4‐3 ers
Table 4-2 HVAC IE Factors for Climate Zones 8, 9, 10, and 11
Building Type
CZ08 CZ09 CZ10 CZ11
Energy Demand Energy Demand Energy Demand Energy Demand
Assembly 1.13 1.23 1.12 1.26 1.09 1.22 1.05 1.18
Primary school 1.18 1.34 1.16 1.86 1.13 1.88 1.06 1.00
Secondary school 1.16 1.31 1.15 1.84 1.12 1.77 1.07 1.00
Community college 1.17 1.28 1.16 1.31 1.15 1.29 1.12 1.44
University 1.17 1.27 1.16 1.27 1.15 1.26 1.12 1.34
Relocatable classroom 1.11 1.29 1.11 1.29 1.11 1.31 1.04 1.00
Grocery 1.05 1.25 1.06 1.27 1.05 1.28 0.99 1.28
Hospital 1.17 1.26 1.17 1.28 1.14 1.27 1.11 1.23
Nursing home 1.10 1.29 1.10 1.31 1.09 1.32 1.06 1.25
Hotel 1.11 1.28 1.10 1.29 1.07 1.29 1.02 1.25
Motel 1.15 1.27 1.14 1.30 1.12 1.30 1.05 1.23
Bio/tech mfg. 1.18 1.26 1.18 1.26 1.14 1.26 1.12 1.34
Light industrial mfg. 1.11 1.20 1.11 1.22 1.08 1.21 1.04 1.15
Large office 1.18 1.33 1.17 1.33 1.17 1.32 1.13 1.29
Small office 1.16 1.28 1.15 1.32 1.13 1.29 1.07 1.28
Sit-down restaurant 1.12 1.24 1.11 1.26 1.09 1.23 1.04 1.19
Fast-food restaurant 1.11 1.22 1.11 1.24 1.09 1.22 1.05 1.18
Department store 1.17 1.22 1.15 1.25 1.13 1.23 1.07 1.19
Big box retail 1.15 1.24 1.14 1.27 1.12 1.25 1.06 1.20
Small retail 1.15 1.23 1.14 1.26 1.12 1.24 1.06 1.19
Conditioned storage 1.05 1.32 1.04 1.34 1.04 1.31 0.98 1.21
Unconditioned storage 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Refrig. warehouse 1.60 1.25 1.59 1.26 1.58 1.26 1.55 1.25
Exterior 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Section 4 Common Default Factors
4‐4 Savings Estimation TRM ers
Table 4-3 HVAC IE Factors for Climate Zones 12, 14, 15, and 16
Building Type
CZ12 CZ14 CZ15 CZ16
Energy Demand Energy Demand Energy Demand Energy Demand
Assembly 1.04 1.18 1.07 1.14 1.19 1.20 0.99 1.19
Primary school 1.07 1.00 1.09 1.40 1.21 1.34 0.97 1.00
Secondary school 1.06 1.00 1.09 1.47 1.21 1.30 0.98 1.00
Community college 1.11 1.28 1.12 1.33 1.24 1.34 1.04 1.24
University 1.12 1.22 1.13 1.28 1.20 1.28 1.06 1.23
Relocatable classroom 1.04 1.00 1.09 1.33 1.19 1.31 1.00 1.00
Grocery 0.96 1.28 1.05 1.32 1.13 1.30 0.96 1.25
Hospital 1.11 1.23 1.13 1.28 1.19 1.29 1.06 1.23
Nursing home 1.05 1.25 1.08 1.32 1.16 1.33 0.99 1.27
Hotel 1.00 1.25 1.03 1.30 1.16 1.29 0.90 1.27
Motel 1.04 1.23 1.08 1.32 1.20 1.32 0.96 1.25
Bio/tech mfg. 1.11 1.20 1.14 1.23 1.19 1.26 1.07 1.21
Light industrial mfg. 1.04 1.18 1.06 1.20 1.15 1.29 0.99 1.19
Large office 1.12 1.31 1.16 1.31 1.23 1.32 1.08 1.29
Small office 1.07 1.23 1.11 1.30 1.21 1.30 1.01 1.27
Sit-down restaurant 1.03 1.18 1.07 1.16 1.17 1.26 0.99 1.21
Fast-food restaurant 1.05 1.18 1.07 1.23 1.15 1.23 1.00 1.20
Department store 1.07 1.21 1.09 1.21 1.17 1.24 0.99 1.21
Big box retail 1.06 1.20 1.09 1.26 1.17 1.26 0.98 1.21
Small retail 1.06 1.20 1.09 1.20 1.17 1.24 0.99 1.21
Conditioned storage 0.98 1.25 1.01 1.29 1.11 1.30 0.91 1.27
Unconditioned storage 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Refrig. warehouse 1.57 1.32 1.52 1.32 1.63 1.26 1.38 1.27
Exterior 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Common Default Factors Section 4
Savings Estimation TRM 4‐5 ers
Table 4-4 HVAC IE Factors – California Average
Building Type
CA Average
Energy Demand
Assembly 1.08 1.21 Primary school 1.11 1.33 Secondary school 1.10 1.28 Community college 1.13 1.28 University 1.13 1.26 Relocatable classroom 1.07 1.20 Grocery 0.99 1.25 Hospital 1.14 1.23 Nursing home 1.07 1.25 Hotel 1.04 1.25 Motel 1.09 1.25 Bio/tech mfg. 1.15 1.23 Light industrial mfg. 1.07 1.18 Large office 1.14 1.27 Small office 1.11 1.25 Sit-down restaurant 1.07 1.22 Fast-food restaurant 1.07 1.20 Department store 1.12 1.21 Big box retail 1.10 1.23 Small retail 1.10 1.21 Conditioned storage 1.00 1.24 Unconditioned storage 1.00 1.00 Refrig. warehouse 1.59 1.29 Exterior 1.00 1.00
Lighting UES measure energy savings are based on lighting run times (operating hours) for the
same typical end‐use space types. Table 4‐5 provides the default factors.
Table 4-5 Default Lighting Operating Hours
Building Type Operating
Hours Building Type Operating
Hours
Assembly 2,610 Light industrial mfg. 3,220
Primary school 2,140 Large office 2,640
Secondary school 2,280 Small office 2,590
Community college 2,420 Sit-down restaurant 4,830
University 2,350 Fast-food restaurant 4,840
Re-locatable classroom 2,480 Department store 3,380
Grocery 4,910 Big box retail 4,270
Hospital 5,260 Small retail 3,380
Nursing home 4,160 Conditioned storage 3,420
Hotel 1,950 Unconditioned storage 3,420
Motel 1,550 Refrigerated warehouse 4,770
Bio/tech mfg. 3,530
Section 4 Common Default Factors
4‐6 Savings Estimation TRM ers
To determine the peak demand reduction associated with lighting measures, the lighting
measure reduction in lighting power is multiplied by a default peak coincident demand factor
(CDF). Tables 4‐6 and 4‐7 provide the factors for twelve climate zones and Table 4‐8 provides
the statewide average factors.
Table 4-6 Peak Coincident Demand Factors (CDF)
Building Type CZ02 CZ03 CZ04 CZ05 CZ08 CZ09
Assembly 0.53 0.53 0.53 0.53 0.53 0.53
Primary school 0.02 0.02 0.02 0.62 0.62 0.02
Secondary school 0.02 0.02 0.02 0.71 0.71 0.02
Community college 0.49 0.49 0.49 0.81 0.81 0.49
University 0.44 0.44 0.44 0.72 0.72 0.44
Relocatable classroom 0.02 0.02 0.02 0.70 0.70 0.02
Grocery 0.69 0.69 0.69 0.69 0.69 0.69
Hospital 0.83 0.83 0.83 0.83 0.83 0.83
Nursing home 0.68 0.68 0.68 0.68 0.68 0.68
Hotel 0.24 0.24 0.24 0.24 0.24 0.24
Motel 0.17 0.17 0.17 0.17 0.17 0.17
Bio/tech mfg. 0.85 0.85 0.85 0.85 0.85 0.85
Light industrial mfg. 0.92 0.92 0.92 0.92 0.92 0.92
Large office 0.71 0.71 0.71 0.71 0.71 0.71
Small office 0.69 0.69 0.69 0.69 0.69 0.69
Sit-down restaurant 0.80 0.80 0.80 0.80 0.80 0.80
Fast-food restaurant 0.81 0.81 0.81 0.81 0.81 0.81
Department store 0.76 0.76 0.76 0.76 0.76 0.76
Big box retail 0.85 0.85 0.85 0.85 0.85 0.85
Small retail 0.88 0.88 0.88 0.88 0.88 0.88
Conditioned storage 0.70 0.70 0.70 0.70 0.70 0.70
Unconditioned storage 0.70 0.70 0.70 0.70 0.70 0.70
Refrig. warehouse 0.56 0.56 0.56 0.56 0.56 0.56
Exterior 0.00 0.00 0.00 0.00 0.00 0.00
Common Default Factors Section 4
Savings Estimation TRM 4‐7 ers
Table 4-7 Peak Coincident Demand Factors (CDF)
Building Type CZ10 CZ11 CZ12 CZ14 CZ15 CZ16
Assembly 0.53 0.53 0.53 0.53 0.53 0.53
Primary school 0.02 0.02 0.02 0.02 0.02 0.02
Secondary school 0.02 0.02 0.02 0.02 0.02 0.02
Community college 0.49 0.49 0.49 0.49 0.49 0.49
University 0.44 0.44 0.44 0.44 0.44 0.44
Relocatable classroom 0.02 0.02 0.02 0.02 0.02 0.02
Grocery 0.69 0.69 0.69 0.69 0.69 0.69
Hospital 0.83 0.83 0.83 0.83 0.83 0.83
Nursing home 0.68 0.68 0.68 0.68 0.68 0.68
Hotel 0.24 0.24 0.24 0.24 0.24 0.24
Motel 0.17 0.17 0.17 0.17 0.17 0.17
Bio/tech mfg. 0.85 0.85 0.85 0.85 0.85 0.85
Light industrial mfg. 0.92 0.92 0.92 0.92 0.92 0.92
Large office 0.71 0.71 0.71 0.71 0.71 0.71
Small office 0.69 0.69 0.69 0.69 0.69 0.69
Sit-down restaurant 0.80 0.80 0.80 0.80 0.80 0.80
Fast-food restaurant 0.81 0.81 0.81 0.81 0.81 0.81
Department store 0.76 0.76 0.76 0.76 0.76 0.76
Big box retail 0.85 0.85 0.85 0.85 0.85 0.85
Small retail 0.88 0.88 0.88 0.88 0.88 0.88
Conditioned storage 0.70 0.70 0.70 0.70 0.70 0.70
Unconditioned storage 0.70 0.70 0.70 0.70 0.70 0.70
Refrig. warehouse 0.56 0.56 0.56 0.56 0.56 0.56
Exterior 0.00 0.00 0.00 0.00 0.00 0.00
Section 4 Common Default Factors
4‐8 Savings Estimation TRM ers
Table 4-8 Peak Coincident Demand Factors (CDF)
Building Type CA
Average
Assembly 0.53
Primary school 0.12
Secondary school 0.14
Community college 0.53
University 0.48
Relocatable classroom 0.14
Grocery 0.69
Hospital 0.83
Nursing home 0.68
Hotel 0.24
Motel 0.17
Bio/tech mfg. 0.85
Light industrial mfg. 0.92
Large office 0.71
Small office 0.69
Sit-down restaurant 0.80
Fast-food restaurant 0.81
Department store 0.76
Big box retail 0.85
Small retail 0.88
Conditioned storage 0.70
Unconditioned storage 0.70
Refrig. warehouse 0.56
Exterior 0.00
HVAC Measures – Nonresidential 5
Savings Estimation TRM 5‐1 ers
5. HVAC MEASURES – NONRESIDENTIAL
5.1 Commercial Air Conditioning Units and Heat Pumps
Measure Summary Information
Measure status Active – until July 1, 2019
Measure description Installation of new high efficiency air conditioning (AC) units, including single unitary package units and split system units. Both AC and heat pump units are included.
End use HVAC
Project eligibility Applicable to both retrofit and new construction
Savings type UES
Unit energy savings See TRM100 spreadsheet summary table. Savings vary based on unit size, building type, and climate zone. With 32 unit types, 22 building types, and 12 climate zones, savings for 8,000-plus measure savings estimates are provided.
All savings are listed per ton of cooling. Incremental measure cost See TRM100 spreadsheet summary table
All costs1 are listed per ton of cooling EUL 15 years2
Baseline and Efficient Case Conditions
Applicable baseline types Natural replacement – code Dual baseline – early retirement
Baseline description 1. For natural replacement, the baseline is the minimum unit efficiency allowed by code.
2. For the remaining useful life (RUL) period, the baseline is the preexisting unit vintage efficiency weighted by building vintage.
Efficient case description New units with efficiency levels consistent with CEE Tier I and Tier II3 efficiency levels. Unit efficiency ratings are provided in the Unit Efficiency Ratings Table.
Savings Calculation Annual energy savings formula
Savings for AC and heat pumps are obtained from the DEER 2014 database (EQUEST parametric modeling simulations), which includes updates based on the 2013 Title 24 code requirements. For SEER 15 measures (units 5 tons or less) not provided in DEER, DEER data was extrapolated to estimate savings (7.2% savings increase over SEER 14).
Peak demand reduction See above Definitions
Vintage = EER = IEER =
SEER =
Year that the building type was built Energy efficiency ratio = 12 × kW/ton cooling Integrated energy efficiency ratio – Weighted average of part-load efficiencies of an HVAC unit for a specified set of loads and outdoor air temperatures (OATs) Seasonal energy efficiency ratio – Weighted average of part-load efficiencies of an HVAC unit for a specified set of loads and OATs
Key Parameters
Building type Determines the average hours of operation and internal building loads
HVAC unit size Measure name includes unit cooling capacity in both units of tons and kBtu/h. Tons are representative of the nominal cooling capacity of equipment sizes available from most equipment manufacturers. kBtu/h savings are useful for comparison to code requirements and CEE unit size categories.
Section 5 HVAC Measures – Nonresidential
5‐2 Savings Estimation TRM ers
Quality Assurance: Design, Installation, Commissioning, and Operation
1. Determine if new unit will be replacing a functional unit or a failed unit. 2. If new unit is replacing existing functional unit and RUL savings will be applied, record age, make, model, size,
and type of unit to be replaced. 3. Verify that new unit meets minimum efficiency requirements. 4. Verify that new unit is properly installed and commissioned.
Important Notes
N/A 1Measure cost data was derived from the following sources:
a. PG&E work paper, PGECOHVC126, “Unitary Air-Cooled Commercial Air Conditioners and Heat Pumps <65kBtu/h Revision #3,” 6/20/2012 b. PG&E work paper, PGECOHVC128, “Unitary Air-Cooled Commercial Air Conditioners and Heat Pumps >= 65 kBtu/h,” Revision # 3, 6/20/2012
2DEER_EUL_Summary_10-1-2008.xls
3Consortium for Energy Efficiency (CEE) Commercial Unitary AC and HP Specification, Effective January 6, 2012. http://www.cee1.org/files/CEE_CommHVAC_UnitarySpec2012.pdf
5.1.1 Unit Efficiency Ratings – 5 Tons and Smaller
This table lists peak (EER) and seasonal (SEER) efficiency ratings for both AC and heat pump
units that are 5 tons or less in capacity. It also indicates the applicable CEE tier level. For all
units 5 tons and smaller, the minimum efficiency rating allowed by code (2012 Appliance
Standards) is 13 SEER and 7.7 HSPF (heat pumps only).
Measure Name EER
Rating SEER Rating
HSPF Rating
CEE Tier I
CEE Tier II
AC split unit – < 5 tons (55 kBtu/h) -14 SEER 12 14 X
AC split unit – 5 tons (55-64 kBtu/h) -14 SEER 12 14 X
AC pkg unit – < 5 tons (55kBtu/h) -14 SEER 11.6 14 X
AC pkg unit – 5 tons (55-64 kBtu/h) -14 SEER 11.6 14 X
AC split unit – < 5 tons (55 kBtu/h) -15 SEER 12.5 15 X
AC split unit – 5 tons (55-64 kBtu/h) -15 SEER 12.5 15 X
AC pkg unit – < 5 tons (55kBtu/h) -15 SEER 12 15 X
AC pkg unit – 5 tons (55-64 kBtu/h) -15 SEER 12 15 X
HP split unit – < 5 tons (55 kBtu/h) -14 SEER 8.5 HSPF 12 14 8.5 X
HP split unit – 5 tons (55-64 kBtu/h) -14 SEER 8.5 HSPF
12 14 8.5 X
HP pkg unit – < 5 tons (55 kBtu/h) -14 SEER 8.0 HSPF 11.6 14 8.0 X
HP pkg unit – 5 tons (55-64 kBtu/h) -14 SEER 8.0 HSPF 11.6 14 8.0 X
HP split unit – < 5 tons (55 kBtu/h) -15 SEER 9 HSPF 12.5 15 9.0 X
HP split unit – 5 tons (55-64 kBtu/h) -15 SEER 9 HSPF 12.5 15 9.0 X
HP pkg unit – < 5 tons (55 kBtu/h) -15 SEER 8.5 HSPF 12 15 8.5 X
HP pkg unit – 5 tons (55-64 kBtu/h) -15 SEER 8.5 HSPF 12 15 8.5 X
HVAC Measures – Nonresidential Section 5
Savings Estimation TRM 5‐3 ers
5.1.2 Unit Efficiency Ratings ‒ Greater Than 5 Tons
This table lists peak load (EER) efficiency ratings for both air conditioner and heat pump units
larger than 5 tons in capacity. It also indicates the applicable CEE Tier level and unit size
minimum full load and part‐load efficiency ratings required by code (2013/2016 Title 24).
Measure Name EER
RatingHSPF Rating
T24 Min Eff Rating1
CEE Tier I
CEE Tier II
AC unit – 6 to 8.5 tons (65–109 kBtu/h) -11.5 EER 11.5 N/A 11.0 EER
11.2 IEER
X
AC unit – 10 tons (110–134 kBtu/h) -11.5 EER 11.5 N/A 11.0 EER
11.2 IEER
X
AC unit – 12 to 17 tons (135–239 kBtu/h) -11.5 EER 11.5 N/A 10.8 EER
11.0 IEER
X
AC unit – 20 to 60 tons (240–759 kBtu/h) -10.5 EER 10.5 N/A 9.8 EER
9.9 IEER
X
AC unit – 6 to 8.5 tons (65–109 kBtu/h) -12 EER 12 N/A 11.0 EER
11.2 IEER
X
AC unit – 10 tons (110–134 kBtu/h) -12 EER 12 N/A 11.0 EER
11.2 IEER
X
AC unit – 12 to 17 tons (135–239 kBtu/h) -12 EER 12 N/A 10.8 EER
11.0 IEER
X
AC unit – 20 to 60 tons (240–759 kBtu/h) -10.8 EER 10.8 N/A 9.8 EER
9.9 IEER
X
AC unit – >60 tons (760 kBtu/h) -10.2 EER 10.2 N/A 9.5 EER
9.6 IEER
X
HP unit – 6 to 8.5 tons (65–109 kBtu/h) -11.5 EER 3.4 COP
11.5 3.4 10.8 EER
11.0 IEER
X
HP unit – 6 to 8.5 tons (65–109 kBtu/h) -12 EER 3.4 COP
12 3.4 10.8 EER
11.0 IEER
X
HP unit – 10 tons (110–134 kBtu/h) -11.5 EER 3.4 COP 11.5 3.4 10.8 EER
11.0 IEER
X
HP unit – 10 tons (110–134 kBtu/h) -12 EER 3.4 COP 12 3.4 10.8 EER
11.0 IEER
X
HP unit – 12 to 17 tons (135–239 kBtu/h) -11.5 EER 3.2 COP
11.5 3.2 10.4 EER
10.5 IEER
X
HP unit – 12 to 17 tons (135–239 kBtu/h) -12 EER 3.2 COP
12 3.2 10.4 EER
10.5 IEER
X
HP unit – 20 tons (240 kBtu/h) -10.8 EER 3.2 COP 10.8 3.2 9.3 EER
9.4 IEER
X
1For units with electric resistance heat, add 0.2 to both EER and IEER to determine minimum rating requirements
Section 5 HVAC Measures – Nonresidential
5‐4 Savings Estimation TRM ers
5.2 Packaged Terminal Air Conditioners & Heat Pumps
Measure Summary Information
Measure status Active until July 1, 2019
Measure description Installation of a new high efficiency packaged terminal AC units (PTAC) or heat pumps (PTHP) in hotel or motel facility.
End use HVAC
Project eligibility 1. For retrofits, the units meet the regulatory definition of replacement units: non-standard sized units (less than 16 inches high or less than 42 inches wide with a cross-section area less than 670 square inches) specially manufactured for replacement applications. The units are designed to fit into the sleeve of the replaced unit.
2. For new construction, the units exceed the new construction (standard size) code efficiency requirements ‒ see the Unit Efficiency Ratings Table.
3. New construction measures are limited to units with a capacity of less than 7,000 Btu/h.
Savings type UES
Unit energy savings 1. Measure savings are found in the TRM101 spreadsheet. 2. With twelve climate zones, sixteen unit types, and two building types, savings for
384 measures are provided. 3. Each replacement unit measure has both natural replacement-code and dual
baseline-early retirement savings values. 4. All savings are listed per ton of cooling.
Incremental measure cost 1. $144 per ton for replacement units1
2. $34 per ton for new construction unit costs2
EUL 15 years3
Baseline and Efficient Case Conditions Applicable baseline types 1. Natural replacement – code
Baseline description 1. For retrofit units, the baseline efficiencies are based on non-standard, replacement units as defined in Federal Code of Regulations2. The federal code requirements can also be found in the 2013/2016 Title 24 code requirements.
2. For new construction units, the baseline efficiencies are based on standard units as defined in the Federal Code of Regulations.
Efficient case description 1. For retrofit units, the minimum unit efficiency rating meets the requirements listed in the Unit Efficiency Ratings Table.
2. For new construction units, the minimum unit efficiency rating meets the requirements listed in the Unit Efficiency Ratings Table.
Savings Calculation Annual energy savings formula
1. Savings for this measure were derived from figures contained within the 2011 DEER database. The DEER database contains savings for code and weighted by vintage preexisting unit baselines.
2. For new construction units, savings are extrapolated from DEER savings values by comparing the new construction net efficiency improvements to the DEER net efficiency improvements. See TRM101 Savings spreadsheet for savings calculations.
Peak demand reduction See above.
Definitions EER =
Energy efficiency ratio = 12 × kW/ton cooling
Key Parameters Building type Used in DEER to determine the average hours of operation and internal building loads.
HVAC unit size Total full-load cooling capacity in tons; unit savings assume units are properly sized.
HVAC Measures – Nonresidential Section 5
Savings Estimation TRM 5‐5 ers
Quality Assurance: Design, Installation, Commissioning, and Operation Determine if unit meets the definition of retrofit (replacement) or new construction unit. Verify that new unit meets minimum efficiency requirements. Verify that new unit is properly installed and commissioned.
Important Notes Most new construction units available (per AHRI directory) do not exceed code efficiency requirements by enough to provide sufficient savings to be a cost-effective measure. Therefore, the only size category included in the new construction savings estimates is for PTHP and PTAC units with a capacity of less than 7,000 Btu/h.
Based on a 2011 market survey conducted by U.S. EPA4, there are a limited number of replacement units available at the efficiency ranges assumed by DEER (nearly 20% greater than code).
1PG&E work paper, PGECOHVC114 PTAC and PTHP Revision 3, June 21, 2012. 2Federal Code of Regulations, 10 CFR part 431.
3DEER_EUL_Summary_10-1-2008.xls. 4ENERGY STAR Market & Industry Scoping Report, Packaged Terminal Air Conditioners and Heat Pumps, December 2011.
5.2.1 Unit Efficiency Ratings
This table shows the unit efficiencies used to estimate savings.
Unit Size and Type
Retrofit Baseline
Efficiency (EER)
Retrofit Installed Unit
Efficiency (EER)
New Construction
Baseline Efficiency
(EER)
New Construction Installed Unit
Efficiency (EER)PTHP Units
PTHP – <7,000 Btu/h 9.31 11.17 11.9 12.2
PTHP – 7,000 to 15,000 Btu/h 8.46 10.15 10.7 N/A
PTHP – >15,000 Btu/h 7.61 9.13 9.5 N/A
PTAC Units
PTAC – <7,000 Btu/h 9.41 11.29 11.7 13.2
PTAC – 7,000 to 15,000 Btu/h 8.56 10.27 10.5 N/A
PTAC – >15,000 Btu/h 7.71 9.29 9.3 N/A
The efficiency rating for PTAC retrofit units in the 7,000 to 15,000 Btu/h size range is based on a
unit size of 11,000 Btu/h. To determine the efficiency rating for all unit sizes within this range
that provide the same level of energy savings, the following formula is used: EER = 13 ‐ (0.25 ×
Cap/1000), where Cap is the unit‐rated cooling capacity in Btu/h. For PTHP retrofit units, the
formula is: EER = 13 ‐ (0.255 × Cap/1000).
5.2.2 Federal Code Efficiency Standards
The following table shows the minimum unit efficiency rating as required by code.
Section 5 HVAC Measures – Nonresidential
5‐6 Savings Estimation TRM ers
Equipment Category Cooling Capacity (Btu/h) Minimum Efficiency Rating
PTHP Standard size <7,000 EER = 11.9 COP = 3.3
7,000 to 15,000 EER = 14.0 - (0.30 x Cap /1000) COP = 3.7 - (0.052 x Cap/1000)
> 15,000 EER = 9.5 COP = 2.9
Non-standard size
<7,000 EER = 9.3 COP = 2.7
7,000 to 15,000 EER = 10.8 - (0.213 x Cap/1000) COP = 2.9 - (0.026 x Cap/1000)
> 15,000 EER = 7.6 COP = 2.5
PTAC Standard size <7,000 EER = 11.7
7,000 to 15,000 EER = 13.8 - (0.30 x Cap /1000)
> 15,000 EER = 9.3
Non-standard size
<7,000 EER = 9.4
7,000 to 15,000 EER = 10.9 - (0.213 x Cap/1000)
> 15,000 EER = 7.7
5.2.3 Measure Cost
The incremental measure cost for all retrofit units is $144 per ton of cooling capacity. For all
new construction units, the incremental measure cost is $34 per ton of cooling.
Lighting Measures – Nonresidential 6
Savings Estimation TRM 6‐1 ers
6. LIGHTING MEASURES – NONRESIDENTIAL 6.1 Semi-Custom Lighting and Lighting Control Measures
Measure Summary Information
Measure status Active, with no expiration date
Measure description Lighting retrofits, lighting controls, lighting fixture replacements, and new lighting fixtures
End use Lighting
Project eligibility Covers measures not specified as a UES lighting measure; however, UES measures with project-specific parameters are eligible under this measure
Savings type Semi-custom
Unit energy savings Project-specific savings are calculated using the energy savings calculators. The calculators can also be used to develop program-specific unit energy savings estimates for common lighting measure retrofits
Measure cost Project-specific costs are used to determine cost-effectiveness
EUL Rated lamp life divided by default annual operating hours for each building type 8 years for lighting controls1
Baseline and Efficient Case Conditions Applicable baseline types 1. Dual baseline – early retirement
2. Natural replacement – code
Baseline description Either the code minimum lighting power density requirement or preexisting light fixture power
Efficient case description Retrofitted fixtures, replacement fixtures, newly installed fixtures, or newly installed lighting controls
Savings Calculation Annual energy savings Savings can be estimated using one of the lighting savings calculators, which are
Excel 2010 spreadsheet models for estimating energy savings. The TRM400 energy savings calculator for nonresidential lighting is intended for use by utility program administrators and covers all lighting measure types. Savings estimates are provided for both the remaining useful life and effective useful life baselines used for early retirement measures. Savings calculation formulas and methodologies are fully documented in the calculator. The TRM404 spreadsheet provides a simplified lighting rebate calculator. It provides an easy-to-use interface for the lighting calculator. It includes a program administrator section where incentive rates and climate zones can be set. Savings estimates are provided for both the remaining useful life and effective useful life baselines used for early retirement measures. The TRM 408 and TRM 409 spreadsheets are savings calculators for estimating savings for newly constructed and renovated buildings using a code baseline. The calculators are based on current Title 24 documentation, allowing easy transfer of data from the project’s code compliance documents to the calculator.
Peak demand reduction Default CDF factors are used to estimate peak demand reduction.
Section 6 Lighting Measures – Nonresidential
6‐2 Savings Estimation TRM ers
Key Parameters The TRM savings calculators allows the use of either default operating hours by building type or manual input of operating hours based on building operator interviews or field-measured data.
Lighting control savings factors are primarily based on studies2 with measured field data. However, given the large variability in control savings, project-specific measured data may be preferred over the default values. In addition.
Space end-use types are used to determine default operating hours.
Quality Assurance: Design, Installation, Commissioning, and Operation
Confirm that the existing fixture quantity, fixture type, location/end-use type, and control type are correctly entered into the calculator.
The retrofit and replacement fixture type selected in the calculator should be verified as an appropriate replacement for the existing fixture.
Lighting operating hours should be verified through operator interviews or field measurement. New lighting controls installed should be verified to be applicable to the space where they are applied. New lighting controls installed should be commissioned to ensure they are properly functioning.
Important Notes N/A
1DEER_EUL_Summary_10-1-2008.xls
2LBNL– A Meta-Analysis of Energy Savings from Lighting Controls in Commercial Buildings, 2011
6.1.1 Lighting Control Default Savings Factor Table
The savings calculator is capable of estimating savings from the installation of lighting controls.
Users may input savings factors based on project‐specific measured data, or select the
appropriate default savings factor. Controls savings are determined by multiplying the lighting
operating hours by the default control savings factor.
Space Type
Occupancy Sensor, Wall- or Ceiling-
Mounted1 Daylight Sensor1
Combined Occupancy &
Daylight Sensors1
Assembly 36% 36% 40%
Break room 20% 20% 40%
Classroom 18% 29% 34%
Computer room 35% N/A 34%
Conference room 35% 18% 40%
Dining 35% 18% 40%
Gymnasium 35% 35% 40%
Hallway 15% 15% N/A
Hospital room 45% N/A N/A
Industrial 45% N/A N/A
Kitchen 30% N/A N/A
Library 15% 18% 34%
Lobby 25% 18% 40%
Lodging (guest rooms) 45% N/A 40%
Lighting Measures – Nonresidential Section 6
Savings Estimation TRM 6‐3 ers
Space Type
Occupancy Sensor, Wall- or Ceiling-
Mounted1 Daylight Sensor1
Combined Occupancy &
Daylight Sensors1
Open office 22% 27% 40%
Parking garage 15% 18% 40%
Private office 22% 27% 40%
Process 45% N/A 40%
Public assembly 36% 36% 40%
Restroom 40% N/A 40%
Retail 15% 29% 34%
Stairs 25% N/A N/A
Storage 45% N/A 40%
Technical area 35% 18% 40%
Warehouses 31% 28% 40%
Other 7% 18% 34%
1Data sources for lighting savings factors:
a. LBNL – A Meta-Analysis of Energy Savings from Lighting Controls in Commercial Buildings, 2011
b. CA IOU SPC Manual
c. Efficiency Maine TRM
.
Section 6 Lighting Measures – Nonresidential
6‐4 Savings Estimation TRM ers
6.2 Reduced Wattage Lamp and Ballast
Measure Summary Information
Measure status Active until July 1, 2019
Measure description Install 4-foot reduced wattage T8 lamp & ballast system in existing fluorescent fixture
End use Lighting
Project eligibility For replacement of T12 or first generation T8 lamps and ballasts Not applicable for a lamp-only retrofit Savings are applicable for retrofits exempt from 2013/2016 Title 24 requirements
Savings type UES
Unit energy savings See Energy Savings Table for average savings by climate zone. See TRM102 spreadsheet for energy savings by each building type in each climate zone.
Measure cost $21.13 per installed lamp, based on weighted average cost for various fixture configurations1
EUL See Energy Savings Table. The full range of EUL values (5–15 years) can be found in the TRM spreadsheet. EUL is the rated lamp life divided by default annual operating hours for each building type).
Baseline and Efficient Case Conditions
Applicable baseline types Natural replacement – preexisting conditions, code
Baseline description First-generation, 4-foot T8 lamps with normal light output ballasts
Efficient case description CEE2 reduced wattage system, consisting of a 4-foot, 25 W, or 28 W reduced wattage T8 lamp with high efficiency ballast.
32 W high performance T8 lamp with high efficiency ballast that achieves the same or greater levels of efficiency than a reduced wattage lamp and ballast system
Savings Calculation
Annual energy savings formula
Peak demand reduction
Definitions kWavg =
hrs = IE =
IEd = CDF=
Weighted average demand reduction for a range of fixtures Default operating hours by building type3 HVAC interactive effects, energy3 HVAC interactive effects, demand3 Coincident demand factor3
Key Parameters Operating hours Default operating hours by building type are used in the savings estimates3.
Quality Assurance: Design, Installation, Commissioning, and Operation
Verify that new lamp and ballast is listed on CEE qualified products list. Verify that ballast efficacy factor (BEF) for new lighting system meets CEE specifications for ballast performance
characteristics. Important Notes
1. Savings for interior fixtures by building type include climate-specific HVAC interactive effects. 2. Savings do not include the project-specific impacts associated with the 2013/2016 Title 24 requirements. If code
requirements apply, the lighting savings calculator can be used to estimate savings for reduced wattage lamp and ballast retrofits.
Note: Where an early retirement baseline with T12 lamps is justified, the savings for the remaining useful life period can be determined by multiplying the savings values in the TRM102 spreadsheet by 2.8. Remaining useful life is limited to one-third of the effective useful life.
1Variety of sources were used to derive costs; see TRM reduced wattage lamp and ballast spreadsheet. 2Consortium for Energy Efficiency (CEE) High Performance and Reduced Wattage T8 Specifications http://www.cee1.org/com/com-lt/com-lt-main.php3 3Operating hours, peak coincident demand factors, and HVAC interactive effects from DEER 2011
Lighting Measures – Nonresidential Section 6
Savings Estimation TRM 6‐5 ers
6.2.1 Energy Savings Table
The following table provides the average annual energy savings per lamp and measure life
values for all building types. Refer to the TRM102 reduced wattage lamp and ballast
spreadsheet for savings, demand reduction, and measure life values for each building type. The
TRM spreadsheet provides building type values based on the specific climate zone selected.
Climate ZoneEnergy Savings
(kWh/yr) EUL (Years)
2 16 8
3 16 8
4 16 8
5 16 8
8 17 8
9 17 8
10 17 8
11 16 8
12 16 8
14 17 8
15 18 8
16 15 8
6.3 De-Lamp Fluorescent Fixture
Measure Summary Information
Measure status Active until July 1, 2019
Measure description Permanent removal of fluorescent lamp and lamp holder in existing fluorescent fixture
End use Lighting
Project eligibility Applicable for removal of T12 or first generation T8 lamps
Savings type UES
Unit energy savings See TRM103 spreadsheet. Savings vary depending on lamp length, building type, and climate zone.
Measure cost $9.56 per removed lamp for all lamp lengths1
EUL Range of 10–15 years (rated ballast life divided by annual operating hours for each building type)
Baseline and Efficient Case Conditions
Applicable baseline types Natural replacement – preexisting conditions, code
Baseline description First generation T8 lamp with normal output ballast 4-foot lamp: T8, nominal wattage 32 W lamp (actual wattage 28 W) 2-foot lamp: T8, nominal wattage 17 W lamp (actual wattage 16 W) 3-foot lamp: T8, nominal wattage 25 W lamp (actual wattage 22 W) 8-foot lamp: T8, nominal wattage 59 W lamp (actual wattage 55 W)
Efficient case description Lamp and lamp holder permanently removed or disabled, resulting in fixture with fewer lamps than preexisting conditions.
Section 6 Lighting Measures – Nonresidential
6‐6 Savings Estimation TRM ers
Savings Calculation
Annual energy savings formula
Peak demand reduction
Definitions kW = hrs = IE =
IEd = CDF=
Removed lamp wattage
Default operating hours by building type2
HVAC interactive effects (vary by climate zone), energy2
HVAC interactive effects (vary by climate zone), demand2
Coincident demand factor (varies by climate zone2
Key Parameters
Operating hours Default operating hours by building type are used in the savings analysis2
Quality Assurance: Design, Installation, Commissioning, and Operation
Verify that lamps and lamp holders are permanently removed or otherwise permanently disabled.
Important Notes
Savings account for HVAC interactive effects
Note: Where an early retirement baseline with T12 lamps is justified, the savings for the remaining useful life period can be determined by multiplying the savings shown in the TRM table by: 1.54 for 4-foot lamps, 1.75 for 2-foot lamps, and 1.5 for 3-foot lamps. Remaining useful life is limited to one-third of the effective useful life.
1Based on time required to remove a lamp and lamp holder from fixture as part of a fixture lamp and ballast retrofit. Derived from U.S. DOE and lighting contractor interviews. 2Operating hours, peak coincident demand factors, and HVAC interactive effects from DEER 2013.
Lighting Measures – Nonresidential Section 6
Savings Estimation TRM 6‐7 ers
6.4 LED Lighting
Measure Summary Information Measure status Active until July 1, 2019
Measure description Installation of a new high efficiency LED lamps and fixtures
End use Lighting
Project eligibility 1. ENERGY STAR and DesignLights Consortium qualified LED lamps and fixtures 2. For fixture replacements, savings are applicable for retrofits exempt from 2016
Title 24 requirements.
Savings type UES
Unit energy savings See savings summary table in the TRM104 spreadsheet. Savings are available for nineteen retrofit measures: 1. LED parking lot fixture (existing W<250) 2. LED parking lot fixture (existing W≥250) 3. LED wall pack (existing W<250) 4. LED wall pack (existing W≥250) 5. LED parking garage fixture (existing W<250) 6. LED parking garage fixture (existing W≥250) 7. LED fuel pump canopy fixture (existing W<250) 8. LED fuel pump canopy fixture (existing W≥250) 9. LED outdoor pole decorative fixture (existing W<250) 10. LED outdoor pole decorative fixture (existing W≥250) 11. LED downlight fixture, 9–15 W, interior, replacing incandescent 12. LED downlight fixture, 9–15 W, interior, replacing (2) 26 W CFL 13. LED downlight, screw-in lamp, 1–3 W, interior 14. LED downlight, screw-in lamp, 4–20 W, interior 15. LED MR16, pin-based lamp, interior 16. LED troffer, 2 ft x 2 ft and 4 ft x 4 ft 17. LED troffer retrofit kit, 2 ft x 2 ft and 4 ft x 4 ft 18. LED high bay fixture 19. LED low bay fixture Savings vary by fixture or lamp size, building type, and climate zone. With 125 measures available for each climate zone, there are more than 3,000 savings estimates provided.
Measure cost See TRM104 spreadsheet
EUL Range of 5–15 years (rated fixture or lamp life divided by annual operating hours for each building type)
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – preexisting conditions. For LED downlight fixture replacing
CFL lamp fixture, the baseline is natural replacement – code.
Baseline description The baselines are based on typical existing fixtures and lamps.
Efficient case description ENERGY STAR1 and DesignLights Consortium2 qualified LED lamps and fixtures
Savings Calculation Annual energy savings formula
Peak demand reduction
No peak demand reduction for exterior fixtures
Definitions =
hrs = IE = IEd = CDF=
Average kW reduction of typical retrofits Default operating hours by building type3 HVAC interactive effects (varies by climate zone), energy3 HVAC interactive effects (varies by climate zone), demand3 Coincident demand factor, varies by climate zone3
Section 6 Lighting Measures – Nonresidential
6‐8 Savings Estimation TRM ers
Key Parameters Operating hours Default hours by building type used in savings estimate3
Assumed wattage reduction Based on typical LED replacement wattages for existing fixtures and lamps
Quality Assurance: Design, Installation, Commissioning, and Operation Verify that new fixture or lamp is listed on ENERGY STAR or DesignLights Consortium qualified products list.
Important Notes 1. Savings for interior fixtures includes HVAC interactive effects. 2. Measure savings estimates for measures with incandescent lamp baselines are valid until the new code
requirements4 for general service lamps (in effect January 1, 2018) have effectively removed incandescent lamps from the market.
1ENERGY STAR lists qualified LED fixtures and qualified screw-in LED lamps: http://www.energystar.gov/index.cfm?fuseaction=find_a_product.showProductGroup&pgw_code=LU
http://www.energystar.gov/index.cfm?fuseaction=find_a_product.showProductGroup&pgw_code=LB 2DesignLights Consortium Qualified Products List: http://www.designlights.org/ 3Operating hours, peak coincident demand factors, and HVAC interactive effects from DEER 2013 42016 Appliance Efficiency Regulations, Title 20, Section 1605.3 (k)
6.5 LED Refrigerated Display Case Lighting
Measure Summary Information Measure status Active until July 1, 2019
Measure description Replacement of an existing fluorescent lighting with LED lighting in refrigerated display cases.
End use Lighting
Project eligibility Refrigerated display lighting retrofit. Also applicable to display lighting in walk-in coolers.
Savings type UES
Unit energy savings 299‒1,364 kWh per fixture. See Energy Savings and Cost Table.
Measure cost $144‒$1951. See Energy Savings and Cost Table.
Effective useful life (EUL) 16 years1
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – preexisting conditions
Baseline description For 5-foot fixtures, T8HO lamp For 6-foot fixtures, T12HO lamp For all other lengths, T8HO lamp
Efficient case description LED lighting and LED lighting with occupancy sensor
Lighting Measures – Nonresidential Section 6
Savings Estimation TRM 6‐9 ers
Savings Calculation Annual energy savings formula
% . See TRM105 LED refrigerated case lighting spreadsheet for full calculation details.
Peak demand reduction
Definitions
kW =
hrs =
IE =
IEd =
CDF=
OS =
%P =
Baseline fixture wattage (kW) – Installed fixture wattage (kW)
Default grocery store operating hours (4,910)2
Refrigeration interactive effects, energy (1.59)2
Refrigeration interactive effects, demand (1.29)2
Coincident demand factor (0.56)2
Occupancy sensor operating hour reduction factor (35%)3
LED lighting power in occupied (100%) and unoccupied (0%, 20%, & 40%) mode
Key Parameters Length of light fixture, vertical or horizontal orientation, occupancy sensor control,
existing fixture number of lamps, and occupancy sensor control strategy
Quality Assurance: Design, Installation, Commissioning, and Operation Verify existing lamp type, length, and location. Manufacturer specifications sheets should be obtained for verification of fixture power and efficacy. Occupancy sensors should be commissioned to ensure proper operation.
Important Notes For accurate project-specific savings estimates, use the TRM400 lighting savings calculator.
1PG&E work paper, LED Refrigeration Case Lighting with Occupancy Sensors, June 2012.
2Operating hours, peak coincident demand factors, and HVAC interactive effects from DEER 2013
3Occupancy sensor operating hour reduction factor based on PNNL study (Demonstration Assessment of LED Freezer Case Lighting, Pacific Northwest National Laboratory, October 2009)
6.5.1 Energy Savings and Cost Table ‒ LED Display Case Lighting
This table provides the cost and savings data for LED display case lighting.
Measure Name Cost Units Peak kW Annual
kWh
LED refrigerator display case lighting, 5 ft, center & end mount, replacing single lamp fixture
$144 Fixture 0.044 299
LED refrigerator display case lighting, 5 ft, center & end mount, replacing multi-lamp lamp fixture
$144 Fixture 0.089 649
LED refrigerator display case lighting, 6 ft, center & end mount, replacing single lamp fixture
$173 Fixture 0.100 720
LED refrigerator display case lighting, 6 ft, center & end mount, replacing multi-lamp lamp fixture
$173 Fixture 0.175 1,304
LED refrigerator display case lighting, all other lengths, horizontal and vertical mount, replacing single and multi-lamp fixture
$29 Linear feet of fixture
0.011 73.9
Section 6 Lighting Measures – Nonresidential
6‐10 Savings Estimation TRM ers
6.5.2 Energy Savings and Cost Table ‒ LED Display Case Lighting with Occupancy Sensor
This table provides the cost and savings values for LED display case lighting controlled by
occupancy sensors.
Measure Name Cost Units Peak kW Annual
kWh
LED refrigerator display case lighting, 5 ft, center & end mount, replacing single-lamp fixture ‒ with occupancy sensor
$162 Fixture 0.044 340
LED refrigerator display case lighting, 5 ft, center & end mount, replacing multi-lamp lamp fixture ‒ with occupancy sensor
$162 Fixture 0.089 690
LED refrigerator display case lighting, 6 ft, center & end mount, replacing single-lamp fixture ‒ with occupancy sensor
$195 Fixture 0.100 780
LED refrigerator display case lighting, 6 ft, center & end mount, replacing multi-lamp lamp fixture ‒ with occupancy sensor
$195 Fixture 0.176 1,364
LED refrigerator display case lighting, all other lengths, horizontal and vertical mount, replacing single- and multi-lamp fixtures ‒ with occupancy sensor
$32 Linear feet of fixture
0.011 78.2
6.6 Bi-Level Lighting Fixture – Stairwells, Hallways, and Garages
Measure Summary Information
Measure status Active until July 1,2019
Measure description Automated bi-level lighting fixture with integrated motion sensors installed in a stairwell, garage, or hallway. The fixture provides lower levels of lighting during unoccupied periods. Fixtures have fail-safe operation with minimum 15-minute timer duration.
End use Lighting
Project eligibility Fixtures with integrated occupancy sensors with fail-safe feature. Fixtures operate at low light levels during unoccupied periods. Low light fixture power is a maximum of 35% of full fixture power. Low lighting levels must meet life safety code requirements.
Savings type UES
Unit energy savings 248 kWh per fixture1
Measure cost $229 per fixture1
EUL 8 years1
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – preexisting conditions
Baseline description Two-lamp, T8 fixture with no occupancy sensor
Efficient case description Two-lamp T8 bi-level fixtures with integrated sensor, 62 W at full fixture power, 18 W at low fixture power
Savings Calculation Annual energy savings formula
IOU work paper1 savings analysis assumes the fixture operates 8,760 hours and 69% of the time at low fixture power.
Peak demand reduction 0.002 kW
Key Parameters N/A
Lighting Measures – Nonresidential Section 6
Savings Estimation TRM 6‐11 ers
Quality Assurance: Design, Installation, Commissioning, and Operation Low fixture power lighting levels should meet life safety code requirements.
Important Notes Savings for this measure are limited to applications where the 2016 Title 24 code requirements do not apply.
1PG&E work paper, PGECOLT101, Revision 3, 6/18/2012
6.7 Compact Fluorescent Lamps (Commercial and Residential)
Measure Summary Information
Measure status Active until July 1, 2019
Measure description Compact fluorescent lamp (CFL) replacing incandescent lamps and CFL high bay fixtures replacing metal halide or high pressure sodium high bay fixtures
End use Lighting – nonresidential and residential
Project eligibility CFL replacement of incandescent, metal halide, or high pressure sodium lamps or fixtures
Savings type UES
Unit energy savings See Energy Savings and Cost Table for savings by lamp size
Measure cost See Energy Savings and Cost Table
EUL 4 years for CFL lamps and 12 years for high bay fixtures
Applicable baseline types
Natural replacement – preexisting conditions
Baseline description CFL lamp wattages are based on typical power reductions.1 High bay fixtures are based on preexisting fixtures with equivalent light output.
Efficient case description
CFL lamp or high bay CFL fixture
Savings Calculation Annual energy savings formula
See TRM117 spreadsheet for development of operating hours
Peak demand reduction
No peak demand reduction for exterior fixtures
Key Parameters
Definitions
=
hrs =
IE =
IEd = CDF=
Average kW reduction of typical retrofits
Default operating hours by building type HVAC interactive effects, energy
HVAC interactive effects, demand1 Coincident demand factor See TRM117 spreadsheet for development of interactive effects and demand factor.
Quality Assurance: Design, Installation, Commissioning, and Operation
N/A
Important Notes
Measure savings estimates are valid until the new code requirements2 for general service lamps (in effect January 1, 2018) have effectively removed incandescent lamps from the market.
12013-2014_LightingRetrofit_Disposition-12November2014.docx 2 2016 Appliance Efficiency Regulations, Title 20, Section 1605.3 (k)
Section 6 Lighting Measures – Nonresidential
6‐12 Savings Estimation TRM ers
6.7.1 Energy Savings and Cost Table – Lamps for Commercial Buildings
CFL Lamp Size Range, Watts
kWh Savings
Peak Demand Reduction, kW
Measure Costs
9 – 13 83 0.018 $1.65
13 – 15 106 0.023 $3.00
18 – 25 162 0.036 $3.33
23 – 30 200 0.044 $3.66
30 – 55 321 0.071 $4.59
6.7.2 Energy Savings and Cost Table – High Bay Fixtures for Commercial Buildings
CFL Fixture Size Range, Watts
Baseline Wattage
Fixture Location
kWh Savings
Peak Demand Reduction, kW Costs
≤ 360 400 Interior 117 0.026 $300
≤ 244 400 Interior 458 0.102 $300
≤ 192 177 – 399 Interior 282 0.063 $300
≤ 128 101 – 175 Interior 29 0.007 $300
≤ 70 100 Interior 88 0.020 $260
≤ 70 100 Exterior 105 0.000 $260
6.7.3 Energy Savings and Cost Table – Residential CFL Lamps
CFL Size Range, Watts
Lamp Location
kWh Savings
Peak Demand
Reduction, Kw
Measure Costs
9 – 13 Interior 20 0.002 $1.65
13 – 15 Interior 25 0.002 $3.00
18 – 25 Interior 38 0.004 $3.33
9 – 13 Exterior 45 0.000 $3.66
13 – 15 Exterior 57 0.000 $4.59
18 – 25 Exterior 88 0.000 $5.59
Refrigeration Measures – Nonresidential 7
Savings Estimation TRM 7‐1 ers
7. REFRIGERATION MEASURES – NONRESIDENTIAL
7.1 Commercial Ice Machines
Measure Summary Information
Measure status Active until January 1, 2018
Measure description Installation of a new high efficiency ice machine generating small ice cubes (2 oz or smaller).
End use Refrigeration
Project eligibility Applicable to air-cooled batch machines (self-contained, icemaker heads, or remote condensing).
Equipment is listed on the Food Service Technology Center's Qualifying Appliance List or listed as ENERGY STAR-qualified.
Machines make ice cubes (2 oz or smaller) flaked, crushed, or fragmented ice. Machine performance is tested using ARI Standard 810. Remote machines are used with qualifying remote condenser or remote
condenser/compressor unit. Savings type UES
Unit energy savings (Ice harvest rate) – (savings) 1
101–300 lb/day – 805 kWh/yr 301–500 lb/day – 1,117 kWh/yr 501–1000 lb/day – 1,807 kWh/yr 1001–1500 lb/day – 2,601 kWh/yr
>1500 lb/day – 3,641 kWh/yr1
Measure cost 101–300 lb/day – $3061 301–500 lb/day – $266 501–1000 lb/day – $249 1001–1500 lb/day – $589 >1500 lb/day – $939
EUL 10 years 2
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – code
Baseline description Minimum efficiency units compliant with California Appliance Standards (Title 20)
Efficient case description ENERGY STAR or FSTC qualified high-efficiency units
Section 7 Refrigeration Measures – Nonresidential
7‐2 Savings Estimation TRM ers
Savings Calculation Annual energy savings formula
Unit capacity is assumed to be the midpoint of the capacity bin. Annual ice production (Prod) = .75 × Rated daily capacity × 365 days
Baseline efficiency (BE) = Title 20 minimum efficiency3
Installed efficiency (IE) = Value from PG&E work paper1 Annual savings (kWh/yr) = [Prod (lb/yr)/BE(kWh/lb)] – [Prod (lb/yr)/IE (kWh/lb)]
Peak demand reduction ARI Standard 810 provides the assumed standard operating conditions of the machines during the demand period. A coincidence factor of 0.9 is applied as per DEER methodology.
101–300 lb/day – 0.092 kW 301–500 lb/day – 0.115 kW 501–1000 lb/day – 0.186 kW 1001–1500 lb/day – 0.267 kW >1500 lb/day – 0.374 kW
Quality Assurance: Design, Installation, Commissioning, and Operation Verify units are listed on the Food Service Technology Center's Qualifying Appliance List and/or meet ENERGY STAR Version 2.0 (2013) requirements4.
Important Notes Federal regulations will update efficiency standards for ice machines in January 2018. At that time, savings for this measure will be obsolete.
1PG&E work paper PGECOFST108, “Commercial Ice Machines,” Revision 3, 5/30/2012 2DEER 2011 Version 2011.4.01 32007 California Energy Commission (CEC) Title 20 Appliance Efficiency Regulations, CEC 400-2007-016, p. 112 4ENERGY STAR Commercial Ice Makers Specification V2.0, in effect on February 1, 2013
7.2 Commercial Solid Door & Glass Door Refrigerators
Measure Summary Information
Measure status Active until January 1, 2018
Measure description Self-contained energy efficient commercial reach-in solid and glass door refrigerators and freezers.
End use Refrigeration
Project eligibility For self-contained refrigeration units ‒ not applicable to refrigerators with remote condensing units
Equipment is listed on Food Service Technology Center's Qualifying Appliance List ‒ all units listed meet the ENERGY STAR 2.0 Commercial Refrigerators and Freezers Program requirements
Savings type UES
Unit energy savings See Energy Savings Table – Varies based on unit type and size.
Measure cost See Cost Table – Varies based on unit type and size.
EUL 12 years1
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – code
Baseline description Minimum efficiency units compliant with 2015 California Appliance Efficiency Regulations (Title 20)2
Efficient case description High efficiency units listed on Food Service Technology Center's Qualifying Appliance List and meeting ENERGY STAR 2.0 Commercial Refrigerators and Freezers Program requirements
Refrigeration Measures – Nonresidential Section 7
Savings Estimation TRM 7‐3 ers
Savings Calculation Annual energy savings formula
California appliance efficiency standards in effect since 2010 and ENERGY STAR 2.0 standards have a series of formulas that define the maximum daily rated energy use of a refrigerators and freezers with solid and glass doors. These formulas are used to find the daily energy usage of the baseline and proposed units. Units are assumed to operate 8,760 hours per year.3
Peak demand reduction Savings are assumed to be constant throughout any 24-hour period. As such, the annual savings figure is divided by 8,760 and a coincidence factor of 0.9 is applied as per the DEER methodology.
Quality Assurance: Design, Installation, Commissioning, and Operation Verify that units are listed on the Food Service Technology Center's Qualifying Appliance List.
Important Notes Federal regulations will update efficiency standards for commercial refrigerators in 2018. At that time, savings for this measure will be obsolete.
1DEER 2011 Version 2011.4.01 22015 California Appliance Efficiency Regulations (Title 20) 3PG&E work paper, PGECOFST123, “Reach-In Refrigerators and Freezers – Commercial,” Revision 0, 6/8/2012
7.2.1 Energy Savings Table
This table provides the ranges of savings values for each refrigerator & freezer type for a variety
of sizes and door styles.
Unit Volume (Cu ft)
Door Type < 15 15–29 29–49 >49
Refrigerator savings (kWh/yr)
Solid door 270 493 854 1,279
Glass door 723 661 773 934
Freezer savings (kWh/yr)
Solid door 595 869 2,074 4,552
Glass door 1,693 2,010 4,599 8,103
7.2.2 Measure Cost Table
This table provides the incremental measure cost.
Unit Volume (Cu ft)
Door Type < 15 15–29 29–49 >49
Refrigerator incremental cost ($)
Solid door $961 $1,241 $1,732 $2,396
Glass door $91 $760 $947 $1,363
Freezer incremental cost ($)
Solid door $227 $1,200 $1,370 $1,732
Glass door $22 $109 $189 $791
Section 7 Refrigeration Measures – Nonresidential
7‐4 Savings Estimation TRM ers
7.3 EC Motor for Cold Storage Evaporator Fans
Measure Summary Information Measure status Active until July 1, 2019
Measure description Replacement of an existing standard efficiency shaded-pole evaporator fan motor with an electronically commutated motor (EC motor) of the same size for evaporator fans in walk-in coolers and freezers
End use Refrigeration – all climate zones
Project eligibility This measure is valid only for early retirement of a shaded-pole motor that is less than 15 years old.
Savings estimate are not applicable for replacement of a permanent split capacitor (PSC) motor. Savings are approximately 60% less if a PSC motor is replaced.
Savings type UES
Unit energy savings Remaining useful life (RUL) savings are based on motor size and are per motor1
16 W ‒ 408 kWh 1/15 hp and 1/20 hp ‒ 1,064 kWh 1/5 hp ‒ 1,409 kWh 1/3 hp ‒ 1,994 kWh 1/2 hp ‒ 2,558 kWh 3/4 hp ‒ 2,782 kWh
The savings for the second baseline (after the RUL period) is 0 kWh. Measure cost $231 per motor1
EUL 15 years1; If the age of the motor being replaced is unknown, the default RUL is 5 years. Otherwise, the RUL is equal to 15 years minus the age of the motor.
Baseline and Efficient Case Conditions Applicable baseline types Dual baseline – early retirement
Baseline description Shaded-pole evaporator fan motor in walk-in cooler or freezer
Efficient case description High efficiency EC motor; electrical motor efficiency of at least 66%
Savings Calculation Annual energy savings Savings obtained from IOU work paper1 and are based on the following data and
assumptions: 1. Motor wattages: baseline and replacement motors
Motor Specification SHP Motor
Wattage EC Motor Wattage
16 W 92 48
1/15 or 1/20 hp 186 72
1/5 hp 361 210
1/3 hp 563 349
1/2 hp 799 524
3/4 hp 1,087 788
Refrigeration Measures – Nonresidential Section 7
Savings Estimation TRM 7‐5 ers
Peak demand reduction 16 W ‒ 0.047kW 1/15 hp and 1/20 hp ‒ 0.0121 kW 1/5 hp ‒ 0.161 kW 1/3 hp ‒ 0.228 kW 1/2 hp ‒ 0.292 kW 3/4 hp ‒ 0.318 kW
Key Parameters N/A
Quality Assurance: Design, Installation, Commissioning, and Operation Verify EC motor size and efficiency and verify the age and type of motor being replaced.
Important Notes 2015 federal efficiency regulations (CFR-2013-Title 10, Volume 3, part 431, subpart X) require small electric motor efficiencies that are equivalent of an EC motor
1PG&E work paper PGE3PREF123, “ECM for Walk-In Evaporator Fan”, 6/20/2012
7.4 Refrigerated Display Case EC Motor Retrofit
Measure Summary Information
Measure status Active until July 1, 2019
Measure description Replacement of an existing standard efficiency shaded-pole evaporator fan motor with an EC motor in a refrigerated display case.
End use Refrigeration ‒ all climate zones
Project eligibility This measure is valid only for early retirement of a shaded-pole motor that is less than 15 years old. Savings estimate are not applicable for replacement of a permanent split capacitor (PSC) motor. Savings are approximately 60% less if a PSC motor is replaced.
Savings type UES
Unit energy savings Remaining useful life (RUL): 705 kWh per motor1 Savings for the second baseline after the RUL period is 0 kWh.
Incremental measure cost $1691 EUL 15 years2. If the age of the motor being replaced is unknown, the default RUL is 5
years. Otherwise, the RUL is equal to 15 years minus the age of the motor.
Baseline and Efficient Case Conditions Applicable baseline types Dual baseline – early retirement
Baseline description Shaded-pole display case evaporator fan motor with no controls.
Efficient case description High efficiency EC motor with a minimum efficiency of 66%.
Savings Calculation Annual energy savings formula
See TRM109 spreadsheet. Savings analysis is from IOU work paper.1 Savings values are the average of all available climate zones. Savings differ slightly by climate zone and building vintage. However, the difference is negligible. Assumptions for display case motor distribution:
a. 9% 9 W motors b. 49% 19.5 W motors c. 42% 37 W motors
Assumptions for direct energy savings: a. Baseline shaded-pole motor efficiency of 26% b. Installed EC motor efficiency of 66% c. Baseline on evaporator fan motors operating 8,760 hours per year
Section 7 Refrigeration Measures – Nonresidential
7‐6 Savings Estimation TRM ers
Assumptions for indirect refrigeration savings: a. Refrigeration equivalent full load hours (EFLH) were determined using
DOE 2.2R models b. Refrigeration system efficiency (EER) = 9.36
Peak demand reduction 0.073 kW1
Definitions N/A
Key Parameters N/A
Quality Assurance: Design, Installation, Commissioning, and Operation
Verify the age of the motor being replaced and confirm the motor is a shaded pole and not part permanent-split capacitor.
Important Notes 2015 federal efficiency regulations (CFR-2014-Title 10, Volume 3, part 431, subpart X) require small electric motor efficiencies that are equivalent of an EC motor.
1 PG&E work paper, PGE3PREF124-R1, “Display Case ECM Motor Retrofit,” June 14, 2012
2 DEER_EUL_Summary_10-1-2008.xls
7.5 EC Motor with Fan Cycling Controls for Cold Storage Evaporator Fans
Measure Summary Information
Measure status Active until July 1, 2019
Measure description Installation of a fan motor controller to cycle (on/off) an evaporator fan in a walk-in cooler. The measure includes replacing an existing shaded-pole motor with an EC motor.
End use Refrigeration-all climate zones
Project eligibility Minimum EC motor efficiency of 66% with a fan cycling controller
Savings type UES
Unit energy savings See Savings Table.Incremental measure cost $468 per motor1
EUL 10 years, based on the motor controller.2 If the age of the motor is unknown, the default remaining useful life (RUL) is 3 years. Otherwise, the RUL is equal to 10 years minus the age of the motor.
Baseline and Efficient Case Conditions Applicable baseline types Dual baseline – early retirement
Baseline description Shaded-pole evaporator fan motor, 8,760-hour operationEfficient case description High efficiency EC motor with controller integrated into the compressor controller,
which reduces fan speed when refrigerant is not flowing to the evaporator coils.
Savings Calculation Annual energy savings formula
See TRM108 spreadsheet. Savings analysis is from IOU work paper.1 Savings values are the average of all available climate zones. Savings differ slightly by climate zone. However, the difference is negligible. Assumptions for direct energy savings:
a. Baseline shaded-pole motor efficiency of 26% b. Installed EC motor efficiency of 66% c. 8,760 hours – baseline operation d. Installed EC motors reduced to 75% speed when compressors cycle off e. Compressors assumed cycle off 4,380 hours
Assumptions for indirect refrigeration savings: a. Refrigeration EFLH from custom DOE 2.2R model. b. Refrigeration system efficiency (EER) = 6.29
Refrigeration Measures – Nonresidential Section 7
Savings Estimation TRM 7‐7 ers
Peak demand reduction 16 W motor & controller – 0.071 kW 1/15 hp or 1/20 hp motor & controller – 0.157 kW 1/5 hp motor & controller – 0.266 kW 1/3 hp motor & controller – 0.402 kW 1/2 hp motor & controller – 0.553 kW 3/4 hp motor & controller – 0.711 kW
Definitions N/A
Key Parameters N/A
Quality Assurance: Design, Installation, Commissioning, and Operation 1. Verify that EC motor efficiency is 66% or greater 2. Verify the age of the motor being replaced and confirm it is a shaded pole and not part permanent-split
capacitor. 3. Confirm the fan speed is reduced when refrigerant compressor cycles off.
Important Notes EC motors are required by code3 for new walk-in coolers or new fan coil installations. The savings related to the installation of an EC motor are not applicable for new installations.
2015 federal efficiency regulations (CFR-2014-Title 10, Volume 3, part 431, subpart X) require small electric motor efficiencies that are equivalent of an EC motor.
1Work Paper PGE3PREF126, “ECM for Walk-In Evaporator with Fan Controller,” June 20,2012 2DEER_EUL_Summary_10-1-2008.xls 32015 California Appliance Efficiency Regulations (Title 20)
7.5.1 Energy Savings Table
This table provides the energy savings for each motor size and the percent savings attributable
to the fan controller.
Measure Description
Demand Reduction
(kW)
Energy Savings –
Early Retirement
(kWh)
Energy Savings –
Natural Replacement
(kWh)
ECM for walk-in evaporator fan with controller – 16 W 0.071 620 212
ECM for walk-in evaporator fan with controller – 1/15 hp + 1/20 hp 0.157 1,379 333
ECM for walk-in evaporator fan with controller – 1/5 hp 0.266 2,329 920
ECM for walk-in evaporator fan with controller – 1/3 hp 0.402 3,518 1,524
ECM for walk-in evaporator fan with controller – 1/2 hp 0.553 4,841 2,283
ECM for walk-in evaporator fan with controller – 3/4 hp 0.711 6,226 3,444
Section 7 Refrigeration Measures – Nonresidential
7‐8 Savings Estimation TRM ers
7.6 Strip Curtain Infiltration Barrier for Refrigerated Space
Measure Summary Information
Measure status Active until July 1, 2019
Measure description Installation of new strip curtains in doorways of walk-in coolers & freezers
End use Refrigeration
Project eligibility Installation of new strip curtains in existing doorways without an infiltration barrier or replacement of a failed strip curtain older than 4 years. Not applicable for newly constructed cold storage.
Savings type UES
Unit energy savings See energy savings table1. Savings provided by end-use type (restaurant and grocery store). Units are kWh per sq ft of door opening
Measure cost $10.22 per sq ft of door opening1
EUL 4 years1
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement ‒ preexisting conditions
Baseline description Existing doorway between refrigerated and non-refrigerated spaces without an infiltration barrier.
Code baseline applies to newly constructed cold storage areas. Since current code requires an infiltration barrier be installed, measure savings are not applicable to new construction2.
Efficient case description New strip curtains
Savings Calculation Annual energy savings IOU work paper1. Savings are based on grocery and restaurant installations;
however, savings may be used for strip curtain installations in refrigerated doorways in any end-use space.
Peak demand savings See energy savings table
Key Parameters Strip curtain effectiveness Install ratio Doorway usage
= Average preexisting infiltration effectiveness: 40%. post-retrofit: 92% = 80% installed in refrigerated doorways and 20% in freezer doorways = Assumes 108 doorway openings per day
Quality Assurance: Design, Installation, Commissioning, and Operation Ensure that strip curtains are properly installed.
Important Notes N/A
1PG&E work paper, PGECOREF 103, “Strip Curtains, Revision 4,” May 25, 2012 22015 Title 20 Appliance Efficiency Regulations provide requirements for walk-in cold storage areas less than 3,000 sq ft, 2013/2016 Title 24 Building Energy Efficiency Standards provide mandatory requirements for cold storage equal to or greater than 3,000 sq ft.
Refrigeration Measures – Nonresidential Section 7
Savings Estimation TRM 7‐9 ers
7.6.1 Energy Savings Table – Restaurant
The following table provides energy savings and demand reduction for strip curtains per
square foot of door opening.
By Storage Type Weighted Savings
Walk-In Coolers Walk-In Freezers 80% Cooler, 20% Freezer
Climate Zone
Demand Reduction
Energy Savings
Demand Reduction
Energy Savings
Demand Reduction kW
Energy Savings kWh
2 0.009455 118 0.027327 336 0.013 162
3 0.008138 106 0.023354 302 0.011 145
4 0.007967 107 0.022823 304 0.011 146
5 0.007171 97 0.020319 273 0.010 132
8 0.008138 111 0.023354 315 0.011 152
9 0.009056 119 0.026149 341 0.012 163
10 0.010313 131 0.029774 374 0.014 180
11 0.011259 136 0.032315 386 0.015 186
12 0.010313 128 0.029774 366 0.014 176
14 0.012302 150 0.03491 426 0.017 205
15 0.013153 175 0.036853 495 0.018 239
16 0.008138 99 0.023354 282 0.011 136
7.6.2 Energy Savings Table – Grocery
The following table provides energy savings and demand reduction for strip curtains per
square foot of door opening.
By Storage Type Weighted Savings
Walk-in Coolers Walk-in Freezers 80% Cooler, 20% Freezer
Climate Zone
Demand Reduction
Energy Savings
Demand Reduction
Energy Savings
Demand Reduction kW
Energy Savings kWh
2 0.002899 91 0.018733 307 0.006 134
3 0.004114 82 0.015448 273 0.006 120
4 0.004014 82 0.015021 274 0.006 120
5 0.003552 74 0.013044 244 0.005 108
8 0.004114 85 0.015448 285 0.006 125
9 0.004659 92 0.017742 310 0.007 136
10 0.005421 102 0.020834 344 0.009 150
11 0.006004 106 0.023086 358 0.009 156
12 0.005421 100 0.020834 337 0.009 147
14 0.006657 118 0.025468 397 0.010 174
15 0.007197 138 0.027323 464 0.011 203
16 0.004114 76 0.015448 255 0.006 112
Section 7 Refrigeration Measures – Nonresidential
7‐10 Savings Estimation TRM ers
7.7 Refrigerated Display Case with Doors
Measure Summary Information
Measure status Active until January 1, 2018
Measure description Replacement of vertical low-temperature (LT) and medium-temperature (MT) refrigerated display cases without doors with new display cases with doors.
End use Refrigeration
Project eligibility New units replace multi-deck display cases without doors. New display case consists of standard glass doors, EC evaporative fan
motors, and T8 lamps. Savings type UES
Unit energy savings See Energy Savings Table
Measure cost MT: $575 per linear foot of case LT: $493 per linear foot of case
EUL 12 years1
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement ‒ preexisting conditions
Baseline description Existing refrigerated display case with no doors
Efficient case description New refrigerated display case with doors, EC evaporative fan motors, and T8 lamps with electronic ballast
Savings Calculation Annual energy savings IOU work paper2. Savings are based on grocery store building energy simulations.
Peak demand reduction MT: 0.004 – 0.094 kW LT: 0.075 – 0.149 kW
Key Parameters Refrigeration systems Building type
= Multiplex-compressors = Grocery store with space cooling and natural gas heating
Quality Assurance: Design, Installation, Commissioning, and Operation N/A
Important Notes N/A
1DEER_EUL_Summary_10-1-2008.xls
2PG&E work paper, “New Display Cases with Doors,” Revision 4, May 11, 2012
7.7.1 Energy Savings Table
The following table provides energy savings and demand reduction for medium and low
temperature display cases with doors.
Climate Zone
Medium Temperature Low Temperature
Demand Reduction
(kW)
Energy Savings (kWh)
Therm Savings
Demand Reduction
(kW)
Energy Savings (kWh)
Therm Savings
2 0.049 143 26 0.075 993 42
3 0.024 143 30 0.075 978 50
4 0.089 135 24 0.080 942 42
Refrigeration Measures – Nonresidential Section 7
Savings Estimation TRM 7‐11 ers
Climate Zone
Medium Temperature Low Temperature
Demand Reduction
(kW)
Energy Savings (kWh)
Therm Savings
Demand Reduction
(kW)
Energy Savings (kWh)
Therm Savings
5 0.020 136 29 0.121 965 49
8 0.012 103 18 0.089 928 39
9 0.094 110 18 0.079 939 38
10 0.073 118 18 0.085 922 35
11 0.046 170 22 0.090 1,031 37
12 0.065 140 23 0.083 968 39
14 0.047 210 20 0.123 1,040 34
15 0.004 76 12 0.149 1,123 24
16 0.019 169 27 0.096 936 43
7.8 Auto-Closers for Main Cooler or Freezer Doors
Measure Summary Information
Measure status Inactive
Measure description Installation of a door auto-closer on the main door of a walk-in cooler or freezer.
End use Refrigeration
Project eligibility Only applicable as a retrofit for walk-ins built before 2006 without door auto-closers. Not applicable for a replacement for a failed auto-closer. Not applicable for reach-in doors.
Savings type UES
Unit energy savings Auto-closer for walk-in cooler ‒ 979 kWh average for all climate zones. See Energy Savings Table for values by climate zone Auto-closer for walk-in freezer ‒ 2,421 kWh average
Measure cost $157 per auto-closer
EUL 8 years
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement ‒ preexisting conditions
For walk-ins built after 2006, the baseline is natural replacement ‒ code. California Appliance Efficiency Standards (Title 20) require auto-closers after 2006.
Baseline description Main walk-in door of walk-in cooler or freezer without an existing auto-closer.
Efficient case description Auto-closer installed on walk-in door.
Savings Calculation Annual energy savings DEER 2005, IOU work paper1
Peak demand reduction 0 kW
Key Parameters N/A
Quality Assurance: Design, Installation, Commissioning, and Operation N/A
Important Notes N/A
1PG&E work paper, PGECOREF110, “Auto-Closers for Main Doors,” Revision 3, May 2012
Section 7 Refrigeration Measures – Nonresidential
7‐12 Savings Estimation TRM ers
7.8.1 Energy Savings Table
This table provides the energy savings and peak demand reduction for each climate zone.
Climate Zone
Cooler Door Freezer Door
Demand Reduction
Energy Savings
Demand Reduction
Energy Savings
2 0.162 980 0.452 2,450
3 0.127 958 0.296 2,394
4 0.143 981 0.363 2,365
5 0.165 961 0.192 2,378
8 0.108 998 0.280 2,394
9 0.181 1,005 0.422 2,432
10 0.190 1,022 0.326 2,442
11 0.159 1,014 0.363 2,457
12 0.149 998 0.400 2,453
14 0.225 1,000 0.141 2,495
15 0.060 892 0.141 2,409
16 0.149 943 0.326 2,386
Average 0.152 979 0.309 2,421
7.9 Anti-Sweat Heater Controls
Measure Summary Information
Measure status Inactive
Measure description Installation of anti-sweat heater (ASH) controller on a low- or medium-temperature display case with doors. The ASH controller senses the relative humidity of the air surrounding the display case and reduces or turns off the anti-sweat heaters of the glass door and/or door frame during periods of low humidity.
End use Refrigeration
Project eligibility Applicable to existing refrigerated (cooler and freezer) display cases with continuously operating anti-sweat heaters where the anti-sweat heater power is:
More than 7 watts per square foot of freezer door opening, or More than 3 watts per square foot of cooler door opening
Savings type UES
Unit energy savings See Savings Table
Measure cost $48 per linear foot of display case1
EUL 12 years1
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement ‒ preexisting conditions.
Baseline description Refrigerated display case with anti-sweat heaters always on with no controller
Efficient case description Anti-sweat heater controller that cycles off door frame heaters based on the relative humidity of the surrounding air or the amount of condensation in the inner glass. Control logic reduces power when relative humidity is 55% or lower and continues to decrease power as the relative humidity decreases.
Refrigeration Measures – Nonresidential Section 7
Savings Estimation TRM 7‐13 ers
Savings Calculation Annual energy savings IOU work paper 1
Peak demand reduction See Energy Savings Table
Key Parameters N/A
Quality Assurance: Design, Installation, Commissioning, and Operation
N/A
Important Notes
N/A
1SCE work paper SCE13RN009, “Anti-Sweat Heat (ASH) Controls,” May 2012
7.9.1 Energy Savings Table
This table provides the energy savings and peak demand reduction for each climate zone.
Savings are normalized per linear foot of refrigerated display case. Savings are provided for
both low temperature and medium temperature display cases.
Climate Zone
Low Temperature Medium Temperature
Demand Reduction
(kW/lf)
Energy Savings (kWh/lf)
Demand Reduction
(kW/lf)
Energy Savings (kWh/lf)
2 0.047 673 0.046 374
3 0.017 546 0.049 371
4 0.001 556 0.044 374
5 0.073 552 0.048 372
8 0.034 551 0.043 376
9 0.002 584 0.052 379
10 0.034 631 0.048 376
11 0.050 767 0.049 376
12 0.058 651 0.048 376
14 0.092 936 0.052 376
15 0.014 827 0.044 375
16 0.049 694 0.046 365
All Other Nonresidential Measures 8
Savings Estimation TRM 8‐1 ers
8. ALL OTHER NONRESIDENTIAL MEASURES
8.1 Pump and Fan Variable Frequency Drive Control
Measure Summary Information
Measure status Active, no expiration date
Measure description Retrofit of a pump or fan system by installing a variable frequency drive (VFD) for variable load or fixed constant load control.
End use HVAC, process
Project eligibility Constant-flow pump or fan serving a variable load. Oversized constant volume pump or fan serving a constant load. Variable flow pump or fan controlled inefficiently, such as a poorly functioning inlet
guide vane or a throttling devise (discharge damper, balancing valve). Not applicable for cooling tower fan control. Not applicable for systems with high static head. For example:
a. Open-system irrigation water pumps. b. Water pump lift stations. c. Poorly designed VAV supply air fan systems with incorrectly positioned
static pressure control sensor. d. Poorly designed water or air distribution systems with undersized branches
or circuits. These types of systems are often operated with a high static pressure setting to overcome design deficiencies.
Savings type Semi-custom
Unit energy savings Project-specific savings can be calculated using either the TRM401, TRM405, TRM406, or TRM407 energy savings calculators.
Measure cost Project-specific costs are used to determine cost-effectiveness.
EUL 15 years1
Baseline and Efficient Case Conditions
Applicable baseline types Natural replacement – preexisting conditions
Baseline description Fans – savings calculator selection choices: a. Constant volume b. Inlet guide vane, forward curved (FC) fans c. Inlet guide vane, backward inclined (BI), & airfoil fans d. Inlet damper box e. Eddy current drives f. Outlet damper, FC fans g. Outlet damper, BI, & airfoil fans
Pumps – calculator selection choices: h. Mechanical flow control i. Recirculation j. Throttle valve
Section 8 All Other Nonresidential Measures
8‐2 Savings Estimation TRM ers
Efficient case description VFDs installed on either a fan or pump system Variable flow system with pump or fan speed control VFD replacing a throttling valve to provide constant flow with reduced system
pressure
Savings Calculation Annual energy savings Savings are project-specific and can be estimated using the TRM401 pump
and fan VFD calculator, an Excel 2010 spreadsheet model for estimating energy savings. TRM405 is a simplified fan rebate calculator. TRM 406 is a parking garage fan VSD rebate calculator. TRM407 is a pump VSD rebate calculator.
Fan and pump performance curves used to estimate savings are generic curves developed by BPA2 and are based on manufacturer performance data.
The VFD calculator allows for either standard load profiles or custom load profiles developed by the user based on actual operating conditions.
Peak demand reduction In general, there is no peak demand reduction for this measure. It is possible, depending upon operating conditions, that there is a 2%–5% demand penalty due to the efficiency losses associated with the addition of a VFD controller operating at 100% flow.
Key Parameters Performance curves and load profiles
For improved accuracy, generic performance curves can be replaced with performance curves developed using actual manufacturer data. Load profile accuracy can be improved by trending post-installation fan performance.
Quality Assurance: Design, Installation, Commissioning, and Operation Determine design and control mechanism for preexisting fan or pump system. Determine if load being served is constant or variable. Determine if the application of VFD control is appropriate (e.g., no high static head or operational performance
issues). Ensure that the VFD is installed correctly and that pump or fan speed is controlled appropriately.
Important Notes Installation of VFDs is considered industry standard practice for a majority of applications and is required by
code for a variety of HVAC applications. Savings are applicable only if a VFD would not have been installed otherwise.
Using measured trend data to estimate and validate energy saving is the most accurate method for estimating energy savings for fan and pump VFD retrofits. When measured data is unavailable, the VFD calculator will provide a reasonable estimate of potential energy savings given the project meets the eligibility criteria previously stated.
The calculator includes a default load profile for a garage fan being controlled by a CO2 sensor, based on measured field data.
1DEER_EUL_Summary_10-1-2008.xls (VSD Supply Fan Motors, Variable Flow Water Loop – VSD Pump, Variable Air Volume Box, VSD Fan) 2Bonneville Power Administration BPA ASD Calculator for Fan & Pump Applications – Summary of information provided in "Flow Control,” a Westinghouse publication, Bulletin B-851, F/86/Rev–CMS 8121.
All Other Nonresidential Measures Section 8
Savings Estimation TRM 8‐3 ers
8.1.1 Performance Curve Charts
These charts illustrate the power curves used by the VFD calculator to estimate energy savings.
Section 8 All Other Nonresidential Measures
8‐4 Savings Estimation TRM ers
8.2 Vending Machine Controller
Measure Summary Information
Measure status Active until July 1, 2019
Measure description Occupancy sensor controller installed on refrigerated vending machines for nonperishable bottled and canned beverages.
End use Refrigeration, lighting
Project eligibility For controlling refrigerated vending machines The controller includes a passive infrared occupancy sensor that turns off the
lights and compressor when the area is unoccupied for 15 minutes or longer. The control logic should periodically power up the machine at 2-hour intervals.
Savings type UES
Unit energy savings 1,612 kWh/yr1
Measure cost $215 per unit
EUL 5 years2
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – preexisting conditions
Baseline description Vending machine with no controls
Efficient case description Vending machine with control system installed which completely powers the unit down when the area is unoccupied for 15 minutes.
Savings Calculation Annual energy savings formula
Energy savings1 are achieved by reducing the operating hours of the vending machine by shutting off the compressor and lighting during hours when the surrounding area of the unit is not occupied. DEER lists a single savings value for all commercial building types and vintages.
Peak demand reduction No peak demand reduction is associated with this measure.
Quality Assurance: Design, Installation, Commissioning, and Operation Verify that units have occupancy sensors correctly installed and calibrated.
Important Notes N/A
1PG&E work paper, PGECOREF111, “Vending Machine Controller,” Revision 3, 6/8/2012 2DEER_EUL_Summary_10-1-2008.xls
All Other Nonresidential Measures Section 8
Savings Estimation TRM 8‐5 ers
8.3 Vending Machine Controller ‒ Non-Refrigerated
Measure Summary Information
Measure status Active until July 1, 2019
Measure description Installation of an occupancy sensor controller on a nonperishable snack dispensing vending machine
End use Lighting, appliance
Project eligibility Retrofit ‒ vending machine has a lighted front and/or internal lighting
Savings type UES
Unit energy savings 410 kWh1
Incremental measure cost $1441
EUL 5 years1
Baseline and Efficient Case Conditions
Applicable baseline types Natural replacement – preexisting conditions. There are no applicable federal or state code requirements.
Baseline description Existing vending machine with no lighting occupancy sensor control
Efficient case description Installation of a passive infrared occupancy sensor that turns off the vending machine lights when the area is unoccupied
Savings Calculation Annual energy savings formula
Work paper adjusts DEER 2005 value to account for HVAC interactive effects
Peak demand reduction No demand savings are associated with this measure.
Definitions N/A
Key Parameters Hours of operation 8,760 hours before installation of controller
Quality Assurance: Design, Installation, Commissioning, and Operation 1. Verify that existing lighting is not controlled.
2. Verify that occupancy sensor is located properly,
3. Verify that sensor control is tested and commissioned to function as intended.
Important Notes N/A
1PG&E work paper, PGE3PLTG168 Vending Machine Controller – Uncooled R0, June 2012
Section 8 All Other Nonresidential Measures
8‐6 Savings Estimation TRM ers
8.4 Insulated Holding Cabinets
Measure Summary Information
Measure status Active until July 1, 2019
Measure description High efficiency ENERGY STAR-compliant half-size and full-size insulated hot food cabinets ranging in size from 0.3kw to 0.8kW
End use Appliance – food preparation
Project eligibility Electric hot-food holding cabinets. Cabinet is fully insulated with solid doors. Maximum of 20 W per cubic foot per ASTM Standard F2140 Equipment is listed on Food Service Technology Center's Qualifying Appliance
List. Savings type UES
Unit energy savings Half-size – 1,807 kWh/yr1 Full-size – 3,942 kWh/yr
Measure cost Incremental cost Half-size – $2,3361 Full-size – $381
EUL 12 years2
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – code
Baseline description California Appliance Efficiency Standards (Title 20), which require all new commercial hot- food holding cabinets to have a maximum normalized idle energy rate of 40 W/ft³ based on ASTM F2140.
Efficient case description The measure case data was drawn from the CEC Appliance database3 that met the specified idle energy rate of 20 W/ft³ or less.
Savings Calculation Annual energy savings formula
Annual hours of operation = 15 hours/day × 365 days/yr Typical setpoint temperature = 150ºF Half-size unit
Size = 10 cu ft Baseline efficiency = 40 W/ft³ Installed efficiency = 5.7 W/ft³
Full-size unit Size = 25 cu ft Baseline efficiency = 40 W/ft³ Installed efficiency = 11.3 W/ft³
Annual savings = (Annual hours) × [(Size) × (Baseline eff) – (Installed eff)]/1000 Peak demand reduction Savings are assumed to be constant throughout the 15 hours/day of operation. The
15 hours of operation are all assumed to occur during peak periods. As such, the annual savings figure is divided by 5475 and a coincidence factor of 0.9 is applied as per the DEER methodology.
Half-size – 0.30 kW1 Full-size – 0.65 kW1
Quality Assurance: Design, Installation, Commissioning, and Operation Verify that units are listed on the Food Service Technology Center's Qualifying Appliance List.
Important Notes N/A
1PG&E work paper, PGECOFST105, “Insulated Holding Cabinet – Electric,” Revision 3, 6/8/2012 2 2011 DEER database shows an EUL of 12 years for all cooking appliance measures 3 PG&E Food Service Technology Center (FSTC) – Qualified Insulated Holding Cabinets
All Other Nonresidential Measures Section 8
Savings Estimation TRM 8‐7 ers
8.5 Commercial Combination Oven
Measure Summary Information Measure status Active until July 1, 2019
Measure description Energy-efficient commercial combination oven capable of cooking food in either convection or steam mode
End use Appliance – food preparation
Project eligibility Equipment has a tested steam mode cooking energy efficiency of ≥50% and convection mode cooking energy efficiency of ≥70% utilizing American Society for Testing and Materials (ASTM) Standard F2861.
Equipment is listed on Food Service Technology Center's Qualifying Appliance List.
Savings type UES
Unit energy savings <15 pan capacity – 11,497 kWh/yr1 15–28 pan capacity – 15,074 kWh/yr >28 pan capacity – 22,009 kWh/yr
Measure cost <15 pan capacity – $1,5681 15–28 pan capacity – $1,584 >28 pan capacity – $7,048
EUL 12 years 2
Baseline and Efficient Case Conditions
Applicable baseline types Natural replacement – current practice
Baseline description There are no applicable Title 20 or Title 24 minimum efficiency standards for combination ovens. Baseline for this measure was established by the Food Service Technology Center. Convection cooking energy efficiency – 65% Steam cooking energy efficiency – 40%
Efficient case description Installed energy efficiency minimum efficiency requirements for this measure were established by the Food Service Technology Center. Convection cooking energy efficiency – 70% Steam cooking energy efficiency – 50%
Savings Calculation Annual energy savings formula
See TRM106 spreadsheet for assumptions and calculations.
Peak demand reduction Savings1 are assumed to be constant throughout the 12 hours/day of operation. The 12 hours of operation are assumed to all occur during peak periods. As such, the annual savings figure is divided by 4,380 and a coincidence factor of 0.9 is applied as per the DEER methodology. The original analysis (work paper) did not take into account the 0.9 coincidence factor.
<15 pan capacity – 2.36 kW 15–28 pan capacity – 3.10 kW >28 pan capacity – 4.53 kW
Quality Assurance: Design, Installation, Commissioning, and Operation Verify that units are listed on the Food Service Technology Center's Qualifying Appliance List.
Important Notes N/A
1PG&E work paper, PGECOFST100, “Commercial Combination Oven,” Revision 4, 5/31/2012 22011 DEER database shows an EUL of 12 years for all cooking appliance measures 3PG&E Food Service Technology Center (FSTC)
Section 8 All Other Nonresidential Measures
8‐8 Savings Estimation TRM ers
8.6 Commercial Electric Steam Cooker
Measure Summary Information Measure status Active until July 1, 2019
Measure description Energy efficient electric steamer
End use Appliance ‒ food preparation
Project eligibility Electric self-contained unit. The commercial steam cooker must meet ENERGY STAR specifications for
energy efficiency or must have a tested heavy-load potato cooking energy efficiency of 50% utilizing ASTM Standard F1484.
Equipment must be listed on Food Service Technology Center's Qualifying Appliance List.
Savings type UES
Unit energy savings All units – 5,431 kWh/yr
Measure cost All units – $2,1321
EUL 12 years2
Baseline and Efficient Case Conditions
Applicable baseline types Natural replacement – current practice
Baseline description There are no applicable Title 20 or Title 24 minimum efficiency standards for commercial steamers. Baseline for this measure was established by the Food Service Technology Center. The measure case data was drawn from the list of commercial steamers that have been tested by IOU testing laboratories as of April 20, 2012. Steam cooking energy efficiency is 38%.
Efficient case description Installed steamers must meet ENERGY STAR specifications or must have a tested heavy-load potato cooking energy efficiency of 50% utilizing ASTM Standard F1484. Steam cooking energy efficiency is 68%.
Savings Calculation Annual energy savings formula
See the TRM106 spreadsheet for assumptions and calculations.
Peak demand reduction Savings1 are assumed to be constant throughout the 12 hours/day of operation. The 12 hours of operation are all assumed to occur during peak periods. As such, the annual savings figure is divided by 4380 and a coincidence factor of 0.9 is applied as per the DEER methodology. The original analysis (work paper) did not take into account the 0.9 coincidence factor.
All units – 1.12 kW
Quality Assurance: Design, Installation, Commissioning, and Operation Verify that units are listed on the Food Service Technology Center's Qualifying Appliance List.
Important Notes Baseline energy use used in this savings estimate is lower than what is indicated in the reference work paper (work paper overestimates annual usage).
1PG&E work paper, PGECOFST100, “Commercial Combination Oven,” Revision 4, 5/31/2012 22011 DEER database shows an EUL of 12 years for all cooking appliance measures 3PG&E Food Service Technology Center (FSTC)
All Other Nonresidential Measures Section 8
Savings Estimation TRM 8‐9 ers
8.7 Commercial Electric Convection Oven
Measure Summary Information
Measure status Active until July 1, 2019
Measure description Energy efficient electric convection oven
End use Appliance ‒ food preparation
Project eligibility Electric self-contained unit. Energy efficiency ≥ 70% per ASTM Standard F1496. Equipment must be listed on Food Service Technology Center's Qualifying
Appliance List. Savings type UES
Unit energy savings 1. Half-size – 2,518 kWh/yr1 2. Full-size – 2,774 kWh/yr 3. Large full-size – 3613 kWh/yr
Measure cost 1. Half-size – $7931 2. Full-size – $1,007 3. Large full-size – $649
EUL 12 years 2
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – current practice
Baseline description 1. There are no applicable California Title 20 or Title 24 minimum efficiency standards for combination ovens. Baseline for this measure was established by the Food Service Technology Center. The measure case data was drawn from the list of commercial steamers that have been tested by IOU testing laboratories as of April 20, 2012.
2. Performance characteristics for the baseline equipment are listed below in the savings calculation section.
Efficient case description Installed steamers must meet ENERGY STAR specifications or must meet the following minimum efficiency requirements: 1. Half-size – ≥70% cooking energy efficiency – ≤1.0 kW idle rate 2. Full-size – ≥70% cooking energy efficiency – ≤1.6 kW idle rate 3. Large full-size – ≥73% cooking energy efficiency – ≤1.9 kW idle rate
Savings Calculation
Annual energy savings formula
See TRM106 for assumptions and calculations.
Peak demand reduction Savings1 are assumed to be constant throughout the 12 hours/day of operation. The 12 hours of operation are assumed all to occur during peak periods. As such, the annual savings figure is divided by 4,380 and a coincidence factor of 0.9 is applied as per the DEER methodology.
1. Half-size – 0.52 kW1 2. Full-size – 0.57 kW 3. Large full-size – 0.75 kW
Quality Assurance: Design, Installation, Commissioning, and Operation
Verify that units are listed on the Food Service Technology Center's Qualifying Appliance List.
Important Notes
N/A 1PG&E work paper, PGECOFST101, “Commercial Convection Oven,” Revision 4, 6/5/2012 22011 DEER database shows an EUL of 12 years for all cooking appliance measures 3PG&E Food Service Technology Center (FSTC)
Section 8 All Other Nonresidential Measures
8‐10 Savings Estimation TRM ers
8.8 Commercial Electric Fryer
Measure Summary Information
Measure status Active until July 1, 2019
Measure description Energy efficient electric fryer
End use Appliance ‒ food preparation
Project eligibility Fryer is an electric self-contained unit. Energy efficiency ≥ 80% per ASTM Standard F1361 Equipment is listed on Food Service Technology Center's Qualifying Appliance
List Savings type UES
Unit energy savings All units – 3,061 kWh/yr
Measure cost All units – $7691
EUL 12 years 2
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – current practice
Baseline description There are no applicable California Title 20 or Title 24 minimum efficiency standards for fryers. Baseline for this measure was established by the Food Service Technology Center. The measure case data was drawn from the list of commercial steamers that have been tested by IOU testing laboratories as of April 20, 2012.
All units 1. Idle energy rate – 1,200 W 2. Cooking energy efficiency – 75%
Efficient case description Installed fryers must meet the following minimum efficiency requirements:
All units 1. Idle energy rate – 860 W/sq ft/hr 2. Cooking energy efficiency – 85%
Savings Calculation Annual energy savings formula
See TRM106 spreadsheet for assumptions and calculations.
Installed energy use used in these savings estimates is different than that used in source work paper.
Peak demand reduction Savings1 are assumed to be constant throughout the 12 hours/day of operation. The 12 hours of operation are assumed all to occur during peak periods. As such, the annual savings figure is divided by 4380 and a coincidence factor of 0.9 is applied as per the DEER methodology. Original analysis (work paper) did not take in to account the 0.9 coincidence factor. All units – 0.54 kW
Quality Assurance: Design, Installation, Commissioning, and Operation
Verify that units are listed on the Food Service Technology Center's Qualifying Appliance List.
Important Notes N/A
1PG&E work paper, PGECOFST103, “Commercial Fryer – Electric and Gas,” Revision 4, 6/13/2012 22011 DEER database shows an EUL of 12 years for all cooking appliance measures. 3PG&E Food Service Technology Center (FSTC)
All Other Nonresidential Measures Section 8
Savings Estimation TRM 8‐11 ers
8.9 Commercial Electric Griddle
Measure Summary Information
Measure status Active until July 1, 2019
Measure description Energy efficient electric griddle
End use Appliance ‒ food preparation
Project eligibility 1. Electric self-contained unit 2. Meet ENERGY STAR specifications or energy efficiency ≥ 70% per ASTM Standard
F1275 3. Equipment is listed on Food Service Technology Center's Qualifying Appliance List
Savings type UES
Unit energy savings All units – 2,663 kWh/yr
Measure cost All units – $7741
EUL 12 years 2
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – current practice
Baseline description There are no applicable California Title 20 or Title 24 minimum efficiency standards for griddles. Baseline for this measure was established by the Food Service Technology Center. The measure case data was drawn from the list of commercial steamers that have been tested by IOU testing laboratories as of April 20, 2012.
All units Cooking energy efficiency – 60% (ASTM F1275 test)
Efficient case description Installed griddles meets ENERGY STAR specifications or must meet the following minimum efficiency requirements
All units Cooking energy efficiency – 75% (ASTM F1275 test)
Savings Calculation
Annual energy savings formula
See TRM106 spreadsheet for assumptions and calculations.
Peak demand reduction Savings1 are assumed to be constant throughout the 12 hours/day of operation. The 12 hours of operation are assumed to all occur during peak periods. As such the annual savings figure is divided by 4,380 and a coincidence factor of 0.9 is applied as per the DEER methodology. The original analysis (work paper) did not take into account the 0.9 coincidence factor.
All units – 0.49 kW
Quality Assurance: Design, Installation, Commissioning, and Operation Verify that units are listed on the Food Service Technology Center's Qualifying Appliance List
Important Notes N/A
1PG&E work paper, PGECOFST103, “Commercial Griddle,” Revision 4, 5/2/2012 22011 DEER database shows an EUL of 12 years for all cooking appliance measures. 3PG&E Food Service Technology Center (FSTC)
Section 8 All Other Nonresidential Measures
8‐12 Savings Estimation TRM ers
8.10 Commercial Dishwasher
Measure Summary Information
Measure status Active until July 1, 2019
Measure description ENERGY STAR-qualified commercial dishwasher
End use Appliance ‒ food preparation
Project eligibility Installation of an ENERGY STAR (specification version 2.0) qualified commercial dishwasher of the following types: under counter, door-type, single-tank conveyor and multi-tank conveyor
Savings type UES
Unit energy savings See Energy Savings Table. Savings varies by type of dishwasher, water temperature, and energy source of hot water.
Incremental measure cost See Cost Table. Incremental cost varies by the type of dishwasher
EUL 10 years1
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement ‒ code
Baseline description Standard efficiency unit
Efficient case description ENERGY STAR 2.0-qualified unit
Savings Calculation Annual energy savings formula
1. The energy savings were determined using the ENERGY STAR commercial kitchen equipment calculator1.
2. The calculator defaults to 365 days/year operation for all dishwasher types and assumes an average daily cycle value for each dishwasher type.
3. For low-temperature dishwashers, a 40oF change in temperature is assumed. The change in temperature for a high-temperature dishwasher is 70oF.
4. The calculator determines the annual water consumption by multiplying the water used per cycle by the assumed number of cycles per year and multiplying that product by the amount of energy needed to heat that amount of water to the required temperature.
Peak demand reduction N/A ‒ peak savings demand reduction estimate is not available
Key Parameters N/A
Quality Assurance: Design, Installation, Commissioning, and Operation Verify that the dishwasher meets the ENERGY STAR specifications.
Important Notes N/A
1ENERGY STAR commercial kitchen equipment calculator (Nov-2013). Available at: www.energystar.gov.
8.10.1 Energy Savings Table
The table below provides the ranges of savings values for the four types of dishwashers (under
counter, door‐type, single‐tank conveyor, and multi‐tank conveyor) used in buildings with
either gas or electric water heating. The dishwashers with booster heating are also separated by
either gas or electric heating.
All Other Nonresidential Measures Section 8
Savings Estimation TRM 8‐13 ers
Dishwasher & Fuel Type Annual
kWh Annual Therms
Water (Gallons)
Low temp. undercounter, gas heat N/A 106 14,783
Low temp. undercounter, elec. heat 2,540 N/A 14,783
High temp. undercounter, gas heat, gas booster 1,471 71 6,296
High temp. undercounter, gas heat, electric booster 2,089 45 6,296
High temp. undercounter, electric heat, gas booster 2,553 26 6,296
High temp. undercounter, electric heat, electric booster 3,171 N/A 6,296
Low temp. door-type, gas heat N/A 675 94,024
Low temp. door-type, electric heat 16,153 N/A 94,024
High temp. door-type, gas heat, gas booster 827 461 40,880
High temp. door-type, gas heat, electric booster 4,840 294 40,880
High temp. door-type, electric heat, gas booster 7,850 168 40,880
High temp. door-type, electric heat, electric booster 11,863 N/A 40,880
Low temp. single-tank conveyor, gas heat 584 545 75,920
Low temp. single-tank conveyor, electric heat 13,626 N/A 75,920
High temp. single-tank conveyor, gas heat, gas booster 2,511 280 24,820
High temp. single-tank conveyor, gas heat, electric booster 4,948 178 24,820
High temp. single-tank conveyor, electric heat, gas booster 6,775 102 24,820
High temp. single-tank conveyor, electric heat, electric booster 9,212 N/A 24,820
Low temp. multi-tank conveyor, gas heat N/A 786 109,500
Low temp. multi-tank conveyor, electric heat 18,811 N/A 109,500
High temp. multi-tank conveyor, gas heat, gas booster 1,986 1,063 94,170
High temp. multi-tank conveyor, gas heat, electric booster 11,230 676 94,170
High temp. multi-tank conveyor, electric heat, gas booster 18,163 386 94,170
High temp. multi-tank conveyor, electric heat, electric booster 27,408 N/A 94,170
Section 8 All Other Nonresidential Measures
8‐14 Savings Estimation TRM ers
8.10.2 Measure Cost Table
The cost data below is from the ENERGY STAR calculator.
Measure Name Cost Low temp. undercounter, gas heat $50
Low temp. undercounter, electric heat $50
High temp. undercounter, gas heat, gas booster $120
High temp. undercounter, gas heat, electric booster $120
High temp. undercounter, electric heat, gas booster $120
High temp. undercounter, electric heat, electric booster $120
Low temp. door-type, gas heat $0
Low temp. door-type, electric heat $0
High temp. door-type, gas heat, gas booster $770
High temp. door-type, gas heat, electric booster $770
High temp. door-type, electric heat, gas booster $770
High temp. door-type, electric heat, electric booster $770
Low temp. single-tank conveyor, gas heat $0
Low temp. single-tank conveyor, electric heat $0
High temp. single-tank conveyor, gas heat, gas booster $2,050
High temp. single-tank conveyor, gas heat, electric booster $2,050
High temp. single-tank conveyor, electric heat, gas booster $2,050
High temp. single-tank conveyor, electric heat, electric booster
$2,050
Low temp. multi-tank conveyor, gas heat $970
Low temp. multi-tank conveyor, electric heat $970
High temp. multi-tank conveyor, gas heat, gas booster $970
High temp. multi-tank conveyor, gas heat, electric booster $970
High temp. multi-tank conveyor, electric heat, gas booster $970
High temp. multi-tank conveyor, electric heat, electric booster $970
8.11 High Efficiency Clothes Washers in Multifamily Properties
Measure Summary Information
Measure status Active until July 1, 2019
Measure description New high efficiency front-loading or top-loading clothes washer installed in a multifamily property
End use Appliance ‒ residential
Project eligibility Installation of a CEE Tier 3 clothes washer in a multifamily residence. Clothes washer can be installed in the residential unit (in-unit) or be a coin operated washer installed in a common area. Washer meets or exceeds CEE Tier 3 performance specifications (dated Jan 2011): 1. Modified energy factor (MEF) = 2.40 or greater 2. Water factor = 4.0 or less
Savings type UES
Unit energy savings 1. In-unit clothes washer – 144 kWh/yr, 0.082 kW, 9.6 therms/yr 2. Coin operated clothes washer – 645 kWh/yr, 0.076 kW, 51.8 therms/yr
Incremental measure cost $2841
EUL 11 years1
All Other Nonresidential Measures Section 8
Savings Estimation TRM 8‐15 ers
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement ‒ code
Baseline description Title 20 compliant clothes washer, MEF = 1.26.
Efficient case description CEE Tier 3-qualified clothes washer
Savings Calculation Annual energy savings formula
IOU work paper1
Energy savings are achieved by a reduction in heated water use and a reduction in dryer energy use (efficient water spin cycles remove more water from clothes).
Savings values are based on various assumptions regarding clothes washer market shares, weighted average efficiencies of standard and efficient washers, and RASS-based populations of gas and electric dryers and hot water heaters.
Peak demand reduction The residential energy/peak factor of 0.417 from DEER 2005 was used to calculate the peak demand.
Definitions N/A
Quality Assurance: Design, Installation, Commissioning, and Operation Verify that clothes washers meet CEE Tier 3 specifications – see CEE list of qualifying products.
Important Notes N/A
1PG&E work paper PGECOAPP120 R3 Clothes Washers MF, June 2012
8.12 ENERGY STAR Uninterrupted Power Supply
Measure Summary Information
Measure status Inactive
Measure description Installation of an ENERGY STAR-qualified uninterrupted power supply (UPS)
End use Process ‒ electronic equipment
Project eligibility ENERGY STAR products in the following category are eligible:
Commercial UPS intended to protect small business and branch office information and communication technology equipment such as servers, network switches and routers, and small storage arrays
Data center UPS intended to protect large installations of information and communication technology equipment such as enterprise servers, networking equipment, and large storage arrays
Telecommunications DC-output UPS/Rectifier intended to protect telecommunication network systems located within a central office or at a remote wireless/cellular site
The following products are not eligible: Consumer UPS intended to protect desktop computers and related
peripherals, and/or home entertainment devices
Products that are internal to a computer or another end-use load
Industrial UPS specifically designed to protect critical control, manufacturing, or production processes
Savings type UES
Unit energy savings 204 kWh per rated kVA
Incremental measure cost $59 per rated kVA1
EUL 10 years2
Section 8 All Other Nonresidential Measures
8‐16 Savings Estimation TRM ers
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – current practice
Baseline description Non-ENERGY STAR-qualified UPS
Efficient case description ENERGY STAR-qualified UPS
Savings Calculation Energy savings Based on average efficiency gains of an ENERGY STAR UPS (3%–5%). Savings
are calculated for the three DOE test sizes based on typical UPS loading and efficiency gains, then averaged together to arrive at a single savings estimate. For calculation details, see TRM115 ENERGY STAR UPS spreadsheet.
Peak demand reduction No peak demand reduction is estimated for this measure.
Key Parameters N/A Quality Assurance: Design, Installation, Commissioning, and Operation
UPS Power and Performance Data Sheet (PPDS) should be checked to verify that it indicates that the UPS equipment meets ENERGY STAR requirements.
Important Notes ENERGY STAR UPS equipment (and efficiency requirements) is current market practice, so this measure is no longer considered a viable option for utility rebates unless ENERGY STAR updates its standards.
1Incremental measure cost based on average UPS costs for a range of sizes, assuming a 30% premium for an ENERGY STAR UPS. 2Useful life for UPS can exceed 10 years (per manufacturer literature) and possibly be as high as 20 years. However, some UPS internal components may fail earlier. Ten years is used as a conservative estimate for EUL.
8.13 Plug-Load Occupancy Sensor
Measure Summary Information
Measure status Active until July 1, 2019
Measure description Replacement of standard electric power strips with occupancy sensor-controlled strips in commercial office space
End use Plug load ‒ consumer electronics
Project eligibility Power strip must control electricity-using equipment in offices or cubicles, including shared copiers and/or printers.
Power strip must be controlled by either passive infrared and/or ultrasonic detectors.
Newly constructed or renovated buildings that were wired to meet Title 24 receptacle control requirements are not eligible.
Savings type UES
Unit energy savings 64 kWh per smart strip installed
Measure cost $37 per smart strip1
EUL 8 years2
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – preexisting conditions
Baseline description Preexisting standard power strips without any control mechanism and which are controlled with a single manual switch.
Efficient case description Occupancy sensor-controlled power strips that use an ultrasonic or infrared sensor and automatically turn off ancillary plug loads connected to the power strip when an area is unoccupied. Plug loads are devices that plug into a building’s electrical system; they include task lights, appliances, entertainment equipment, vending machines, and office equipment: fax machines, computers, printers, and copiers.
All Other Nonresidential Measures Section 8
Savings Estimation TRM 8‐17 ers
Savings Calculation Annual energy savings Calculations are based on the IOU work paper1.
1. Power strip is assumed to control both a tack light as well as a computer monitor.
2. Total controlled wattage is calculated to be 23.9 W and includes a weighted average of computer monitors (95% LCD 5% CRT) and a weighting on monitors that are capable of going into sleep mode (75%) as well as a 10 W task light.
3. Occupancy sensor is assumed to reduce annual operating hours of the monitor and task light by 2,450 hours per year.
Peak demand reduction Demand savings for this measure are calculated by multiplying the total occupancy sensor-controlled wattage by both the demand period HVAC interactive effects and a demand coincidence factor as defined in DEER 2011
Total controlled wattage – 23.9 W Demand interactive effects – 1.2853
Coincidence factor – 0.653
Key Parameters N/A
Quality Assurance: Design, Installation, Commissioning, and Operation Ensure that the occupancy sensor is correctly calibrated. Ensure that all appropriate ancillary electronic devices are connected to outlets controlled by the occupancy
sensor.
Important Notes N/A
1PG&E work Paper PGECOALL101, Revision 3, 6/22/2012 2DEER_EUL_Summary_10-1-2008.xls. Assumed equivalent to occupancy sensor control. 3Peak coincident demand factors, and HVAC interactive effects from DEER 2013
8.14 Smart Power Strip – Commercial Use
Measure Summary Information
Measure status Active until July 1, 2019
Measure description Installation of electric power strips that turn off office equipment based on the power strip control outlet’s sensor reading
End use Plug load ‒ consumer electronics
Project eligibility Applicable to smart power strips installed in nonresidential buildings. Smart power strips should not be used where the building has been wired to meet the receptacle control requirements of Title 24.
Savings type UES
Unit energy savings 100 kWh per smart strip1
Measure cost $21 per smart strip2
EUL 8 years3
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – preexisting conditions
Baseline description Preexisting standard power strips without any control mechanism and which are controlled with a single manual switch
Section 8 All Other Nonresidential Measures
8‐18 Savings Estimation TRM ers
Efficient case description Smart power strip with the capability to sense the drop in current that occurs when the control device enters a low-power mode. A current-sensing transformer attached to an outlet on the plug strip monitors the current draw of the designated device. When the current draw of this device drops below a certain threshold, power is disconnected from the controlled outlets on the plug strip.
Savings Calculation Annual energy savings Savings are based on the results of RTF study and analysis.
Peak demand reduction No peak demand reduction
Key Parameters N/A
Quality Assurance: Design, Installation, Commissioning, and Operation Ensure that the master electronic device is connected to the appropriate master outlet on the power strip.
Important Notes N/A
1 RTF study and analysis, SmartPlugPowerStrips_v2_0.xlsm 2Work Paper SCE13CS002, Revised May 8, 2012 3DEER_EUL_Summary_10-1-2008.xls, assumed equivalent to occupancy sensor control.
8.15 Kitchen Exhaust Hood Demand Ventilation Control System
Measure Summary Information
Measure status Active until July 1, 2019
Measure description Installation of VFD on kitchen exhaust fans for type I (smoke- and grease-producing cooking) exhaust hoods in conjunction with a control system that adjusts fan speed based on cooking demand. Make-up air fan speed, if part of the kitchen ventilation system, is also controlled by the new control system.
End use HVAC ‒ kitchen ventilation
Project eligibility Applicable for both new systems and system retrofits. Not applicable for Type II exhaust hoods (non-grease rated).
Savings type UES
Unit energy savings 4,197 kWh per exhaust fan hp1 105 therms per exhaust fan hp ‒ no savings if make-up air is not heated. Therm savings are the average savings for all climate zones.
Measure cost $1,991 per exhaust fan hp
EUL 15 years1
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – current practice
Baseline description Kitchen type I exhaust hood with manual or automatic on/off control and constant volume exhaust fans. Make-up air may be through make-up air fans or by transfer air from conditioned spaces. Make-up air may be unconditioned, heated, or heated and cooled.
Efficient case description 1. VFD control of exhaust hood fans and, as applicable, make-up air fans. 2. New exhaust hood control system that controls fan speed based on control
inputs (e.g., optic and/or temperature sensors that determine the presence and volume of heat or smoke)
All Other Nonresidential Measures Section 8
Savings Estimation TRM 8‐19 ers
Savings Calculation Annual energy savings IOU work paper1 savings are based on the following data and assumptions:
1. Savings are based on average fan speed and power reduction achieved in the PG&E, FSTC, and SCE field-monitored case studies.
2. Savings are normalized to rated exhaust fan horsepower 3. Coincidental HVAC cooling savings are not included in savings estimate 4. Natural gas savings are based on heated make-up air sized for 80% of total
exhaust airflow and 65°F setpoint. Overall fan speed reduction is assumed to be 26%.
Peak demand reduction 0.542 kW per exhaust fan hp
Key Parameters N/A
Quality Assurance: Design, Installation, Commissioning, and Operation Ventilation system controls must be properly installed and commissioned to ensure optimal performance and prevent control system override by end user.
Important Notes For simplicity, the savings have been normalized to the rated horsepower of the exhaust hood fans. However, exhaust fan hp is not a good indicator of overall system cost and this may not accurately reflect the savings potential for all system types and sizes. For more accurate project-specific savings estimates, custom energy savings estimates are recommended.
1PG&E work paper, Commercial Kitchen Demand Ventilation Controls, June 18, 2012
8.16 Reflective Window Film
Measure Summary Information
Measure status Active until July 1, 2019
Measure description Retrofit of existing single-pane clear glass windows with reflective window film
End use HVAC
Project eligibility Applicable to existing air-conditioned or heated nonresidential buildings. North-facing windows are excluded.
Savings type UES
Unit energy savings 0.18 – 10.32 kWh per sq ft of window glass covered. See TRM118 spreadsheet. Savings vary by building type and climate zone.
Incremental measure cost $3–$4 per sq ft of window glass covered – See TRM118 spreadsheet.
EUL 10 years1
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – preexisting conditions
Baseline description Single-pane clear-glass windows with an assumed SHGC of 0.82
Efficient case description Single-pane tinted glass windows with an assumed SHGC of 0.39
Savings Calculation Annual energy savings formula
Savings data is from IOU work paper2.
Peak demand reduction See Savings Table.
Definitions SHGC
= Solar heat gain coefficient
Key Parameters N/A
Section 8 All Other Nonresidential Measures
8‐20 Savings Estimation TRM ers
Quality Assurance: Design, Installation, Commissioning, and Operation 1. Verify performance rating of window film.
2. Verify that space where the window is located is conditioned space.
Important Notes
N/A
1DEER_EUL_Summary_10-1-2008.xls
2PG&E WORK PAPER PGECOBLD108, “REFLECTIVE WINDOW FILM”
HVAC Measures – Residential 9
Savings Estimation TRM 9‐1 ers
9. HVAC MEASURES – RESIDENTIAL
9.1 Residential Air Conditioners
Measure Summary Information
Measure status Active until July 1, 2019
Measure description Installation of a new high efficiency split-system air conditioner, split-system air source heat pump, or ductless mini-split system
End use HVAC
Project eligibility 1. Unit meets the applicable efficiency level. 2. For mini-split systems, the measure savings are limited to applications where
it is a viable option to install a standard split system (condensing unit and ducted fan coil unit).
Savings type UES
Unit energy savings See TRM200 spreadsheet. There are 19 measures for each climate zone, with each measure consisting of two savings estimates (code and early retirement baselines). In total, there are 456 measure savings values provided.
Incremental measure cost 1. 15 SEER unit: $1531 2. 16 SEER unit: $169 3. 17 SEER and larger: $211
4. Evaporative-cooled split system air conditioner: $7502
5. 15-16 SEER ductless mini-split: $2523 6. 17-19 SEER ductless mini-split: $452 7. 20-21 SEER ductless mini-split: $748
EUL 15 years4
Baseline and Efficient Case Conditions Applicable baseline types 1. Natural replacement – code
2. Dual baseline – early retirement
Baseline description 1. See Code Baseline Efficiency Table for code requirements used in natural replacement baseline.
2. For dual baseline/ early retirement measures, the efficiency level is an average of typical unit efficiency levels for various building vintages (DEER methodology).
Efficient case description Unit meets or exceeds the applicable efficiency level: 1. Heat pump, 15 SEER, 8.4 HSPF 2. Heat pump, 16 SEER, 8.4 HSPF 3. Split-system air conditioner, 15 SEER, 12.5 EER 4. Split-system air conditioner, 16 SEER, 13 EER 5. Split-system air conditioner, 17 SEER, 13 EER 6. Split-system air conditioner, 18 SEER, 13 EER 7. Split-system air conditioner, 19 SEER, 14 EER 8. Split-system air conditioner, 20 SEER, 14 EER 9. Split-system air conditioner, 21 SEER, 15 EER
Section 9 HVAC Measures – Residential
9‐2 Savings Estimation TRM ers
10. Evap-cooled split-system air conditioner, 15 EER 11. Ductless mini-split heat pump, 15 SEER 12. Ductless mini-split heat pump, 16 SEER 13. Ductless mini-split air conditioner, 15 SEER 14. Ductless mini-split air conditioner, 16 SEER 15. Ductless mini-split air conditioner, 17 SEER 16. Ductless mini-split air conditioner, 18 SEER 17. Ductless mini-split air conditioner, 19 SEER 18. Ductless mini-split air conditioner, 20 SEER 19. Ductless mini-split air conditioner, 21 SEER
Savings Calculation Annual energy savings formula
1. See TRM200 spreadsheet. 2. Savings derived from DEER 2014 data 3. Savings for 16 SEER unit is estimated as the average savings value for a 15
SEER and 17 SEER unit. 4. Savings for 20 SEER unit is estimated as the average savings value for a 19
SEER and 21 SEER unit. 5. Ductless mini-split savings based on IOU work paper adjustment factors (1.14
for energy, 1.25 for demand) for adding supply air fan savings associated with a ductless system.
Peak demand reduction See TRM200 spreadsheet
Definitions Vintage = EER = SEER = HSPF =
Building age as indicated in DEER savings database Energy efficiency ratio = 12 × kW/ton cooling Seasonal energy efficiency ratio – Weighted average of part load efficiencies of an HVAC unit for a specified set of loads and outdoor air temperatures Heating seasonal performance factor ‒ air source heat pumps
Key Parameters
N/A
Quality Assurance: Design, Installation, Commissioning, and Operation
1. Determine if new unit will be replacing a functional unit or a failed unit. 2. If new unit is replacing existing functional unit and RUL savings will be applied, record age, make, model, size,
and type of unit to be replaced. 3. Verify that new unit meets the minimum efficiency requirements. 4. Verify that new unit is properly installed and commissioned.
Important Notes
N/A 1Base cost data from Internet research 2DOE/EERE Report, Measure Guideline: Evaporative Condensers, March 2012 3IOU work paper, SCE13HC033 4DEER_EUL_Summary_10-1-2008.xls
9.1.1 Code Baseline Efficiency Table
This table lists both the current and 2015 state and federal code requirements for residential air
conditioners (ACs) and heat pumps (HPs). The TRM200 spreadsheet provides natural
replacement savings estimates based on each code baseline.
HVAC Measures – Residential Section 9
Savings Estimation TRM 9‐3 ers
Effective January 1,20151
Unit Type SEER EER HSPF
Split system HP 14 11.07 8.2
Single package HP 14 11.07 8
Split system AC, < 45 kBtu/h 14 12.2 N/A
Split system AC, > 45 kBtu/h 14 11.7 N/A
Single package AC 14 11.09 N/A
1Code of Federal Regulations (10 CFR Part 432)
9.2 ENERGY STAR Room Air Conditioner
Measure Summary Information Measure status Active until July 1, 2019
Measure description New ENERGY STAR-qualified room air conditioner
End use HVAC
Project eligibility Unit meets ENERGY STAR qualifications
Savings type UES
Unit energy savings See Energy Savings Table. Savings vary based on unit capacity and climate zone
Measure cost $501 per AC unit
EUL 9 years1
Baseline and Efficient Case Conditions Applicable baseline types
Natural replacement – code
Baseline description Through-the-window (with louvers) standard efficiency unit with minimum efficiency rating as established by federal standards2 in effect, June 1, 2014
Efficient case description
ENERGY STAR-qualified unit
Savings Calculation Annual energy savings formula
ENERGY STAR calculator used to estimate savings
Peak demand reduction
//1000
Definitions Btu/havg= EERstan=
kWstan= EEReff=
kWeff= EFLH=
Average cooling capacity of a room AC unit Energy efficiency ratio for a standard unit with side louvers in kW/ton Demand for a standard efficiency AC unit Energy efficiency ratio for an ENERGY STAR unit with side louvers in kW/ton Demand for an ENERGY STAR unit Effective full load hours, varies by climate zone, 224–2,092 hours
Key Parameters EER and EFLH ENERGY STAR criteria are used for baseline, efficient case, and EFLH.
Quality Assurance: Design, Installation, Commissioning, and Operation
Verify that the new room air conditioner is ENERGY STAR qualified.
Section 9 HVAC Measures – Residential
9‐4 Savings Estimation TRM ers
Important Notes 1. Savings for all California climate zones are not available through the ENERGY STAR calculator. The missing
climate zones were assigned as follows: climate zones 4 and 5 assigned to climate zone 3, climate zones 11 and 14 assigned to 12, and climate zone 16 assigned to 15.
2. Savings are estimated based on through the window installations (units with side louvers). Through-the-wall units (without louvers) have lower efficiency ratings, but the differential between code and ENERGY STAR ratings is similar to the window units. As such, the savings estimates provided can be used for both window and through-the-wall units.
1ENERGY STAR calculator, www.energystar.gov. 2Code of Federal Regulations (CFR) Ch. II, Section 430.32
9.2.1 Energy Savings Table
This table provides energy savings for each capacity range for each climate zone.
Unit Capacity Range (Btu/h) Climate Zone Energy Savings (kWh)
6,000 – 7,999 3, 4, 5 3
8,000 – 13,999 3, 4, 5 8
14,000 – 19,999 3, 4, 5 16
20,000 – 27,999 3, 4, 5 23
6,000 – 7,999 8 13
8,000 – 13,999 8 42
14,000 – 19,999 8 83
20,000 – 27,999 8 122
6,000 – 7,999 9 17
8,000 – 13,999 9 55
14,000 – 19,999 9 109
20,000 – 27,999 9 159
6,000 – 7,999 10 15
8,000 – 13,999 10 48
14,000 – 19,999 10 96
20,000 – 27,999 10 140
6,000 – 7,999 11, 12, 14 13
8,000 – 13,999 11, 12, 14 41
14,000 – 19,999 11, 12, 14 82
20,000 – 27,999 11, 12, 14 121
6,000 – 7,999 15, 16 24
8,000 – 13,999 15, 16 75
14,000 – 19,999 15, 16 148
20,000 – 27,999 15, 16 218
HVAC Measures – Residential Section 9
Savings Estimation TRM 9‐5 ers
9.3 Whole-House Ventilation Fan
Measure Summary Information
Measure status Active until July 1, 2019
Measure description Installation of a whole-house ventilation fan. Whole-house fans exhaust air out of a home’s living area into the home’s attic space. Air enters through open windows or doors and is exhausted through the attic’s gable or soffit vents.
End use HVAC
Project eligibility Home is air-conditioned and has attic ventilation openings sufficient for exhausting fan’s rated airflow. Not applicable for newly constructed buildings, or renovations that are required to meet code.
Savings type UES
Unit energy savings See Savings and Cost Table.
Measure cost See Savings and Cost Table.
EUL 20 years1
Baseline and Efficient Case Conditions Applicable baseline types
Natural replacement – preexisting conditions
Baseline description 1. Air-conditioned home 2. No central whole-house fan 3. No other automated source of fresh air (i.e., economizer)
Efficient case description
Whole-house fan permanently installed in the upper-floor ceiling.
Savings Calculation Annual energy savings formula
CEC CASE study2 savings estimates were determined through building simulation models based on a prototypical 2,700 square foot house.
Peak demand reduction
See Savings and Cost Table.
Key Parameters User operation 1. Whole-house fan operation and energy use is highly dependent upon the user.
2. Manual or twist-timer is the typical type of control. 3. Outside-air intake is through manually opened windows and doors.
Quality Assurance: Design, Installation, Commissioning, and Operation Verify that the fan is installed, operational, and has insulated backdraft dampers.
Important Notes Whole-house fans are a prescriptive requirement, beginning with the 2013 update to the Title 24 building energy efficiency standards. This measure is for retrofits that do not invoke code requirements.
1DEER Summary of EUL-RUL Analysis, 2008. 2CEC CASE study: “Night Ventilation Cooling Compliance Option” September 2011.
9.3.1 Savings and Cost Table
This table provides the energy savings and installation cost for each climate zone. Costs vary
due to assumptions regarding regional labor rates. Note that the negative savings for climate
zones 3 and 5 represent the use of the whole‐house fan for ventilation purposes in mild climates
where little space cooling is replaced.
Section 9 HVAC Measures – Residential
9‐6 Savings Estimation TRM ers
Savings are listed per fan, with a fan airflow of 2,000 cfm. Savings correlate to fan airflow;
therefore, the savings can be normalized per cfm and extrapolated to estimate savings for
different fan sizes.
Climate Zone
Energy Savings (kWh)1 Cost2
2 55 $721
3 -142 $861
4 161 $821
5 -63 $652
8 388 $691
9 451 $728
10 522 $672
11 496 $711
12 567 $706
14 353 $647
15 174 $685
16 171 $712
1Per fan (2,000 cfm) 2CEC CASE study
HVAC Measures – Residential Section 9
Savings Estimation TRM 9‐7 ers
9.4 Duct Sealing
Measure Summary Information
Measure status Active until July 1, 2019
Measure description Test and sealing of existing AC duct systems that reduce the overall leakage rate of conditioned air into unconditioned spaces.
End use HVAC
Project eligibility Sealing of duct systems when not required by code. 2013 Title 24 code requirements are in effect when any of the following are true: 1. The HVAC system is new (T24,§150.2(b)1C) 2. Any of the major system components (evaporator coil, condensing unit, furnace)
are replaced (T24,§150.2(b)1E) 3. Duct system is added or extended, where more than 40 feet of duct is in
unconditioned space (T24,§150.2(b)1D) 4. Duct system is modified, where more than 75% of the duct is new
(T24,§150.2(b)1D)
Savings type Semi-custom
Unit energy savings The savings per duct system are determined using the TRM403 residential duct sealing savings calculator. Entering the building type (single-family or multifamily) and duct leakage reduction in percent will provide energy savings and peak demand reduction estimates for each climate zone.
Measure cost Varies depending upon the work required to seal the system. Typical cost range is $285–$580 per duct system1
EUL 10 years1
Applicable baseline types
Natural replacement – preexisting conditions
Baseline description Existing duct system with excessive leakage of conditioned air into unconditioned space
Efficient case description
Sealed and repaired duct system
Savings Calculation Annual energy savings formula
See TRM403 savings calculator. 1. Savings data for two reduction rates obtained from DEER 2014. Savings estimates
between 12% and 25% are interpolated. Savings estimates outside of this range are extrapolated and may be less precise estimates.
2. Savings are for homes with electric cooling and gas heating. Heat pump savings data is not available.
Peak demand reduction
See TRM403 savings calculator
Key Parameters
N/A
Quality Assurance: Design, Installation, Commissioning, and Operation
Obtain both pre- and post-sealing test results to verify the duct system overall reduction in air leakage to unconditioned space.
Important Notes
N/A
1 DEER Summary of EUL‐RUL Analysis, 2008
Section 9 HVAC Measures – Residential
9‐8 Savings Estimation TRM ers
9.4.1 Energy Savings Table – at 20% Duct Leakage Reduction
This table provides the calculator annual energy savings results for a duct leakage reduction of
20% at a single‐family home. Other leakage rates can be estimated using the calculator.
Climate Zone kWh KW Therms
CZ02 62 0.159 27.3
CZ03 32 0.051 24.2
CZ04 73 0.173 19.9
CZ05 29 0.067 27.0
CZ08 123 0.247 12.6
CZ09 172 0.274 15.3
CZ10 164 0.449 18.4
CZ11 198 0.283 24.8
CZ12 124 0.307 23.6
CZ14 375 0.588 27.6
CZ15 488 0.463 9.9
CZ16 118 0.278 56.9
9.5 HVAC Tune-Up Measures
Measure Summary Information
Measure status Active until July 1, 2019
Measure description An HVAC tune-up consists of maintenance and repair work performed on an existing HVAC unit that improves the unit’s operational efficiency. The work is performed as part of a utility-sponsored quality maintenance program, and existing market conditions indicate the improvements would not have happened without the direct influence of the program. Three potential HVAC tune-up measures are included: refrigeration charge, airflow adjustment, and cleaning condenser and evaporator fan coils. Although they are not provided, there are other tune-up measures that may also lead to additional energy savings. The other measures include but are not limited to: economizer repair, motor retrofit, duct leakage reduction, and system diagnostics.
End use HVAC – residential
Project eligibility The measures should be part of a quality maintenance program sponsored by the utility and not maintenance work regularly scheduled and performed by the customer.
Savings type UES
Unit energy savings See Energy Savings Tables1
Measure cost Refrigeration charge measure: $47 per ton of unit capacity Airflow adjustment measure: $220 per ton of unit capacity
Coil cleaning measure: $70 per ton of unit capacity1
EUL 5 years1
Applicable baseline types Natural replacement – preexisting conditions
Baseline description Existing HVAC unit not operating at optimal performance due to lack of regular maintenance
Efficient case description Existing HVAC unit with improved overall system efficiency by: bringing the refrigerant charge back to OEM specifications, dirty evaporator and condenser coils sufficiently cleaned to increase airflow, and system adjustments (such as rebalancing or increased return air openings) that return the supply airflow back to within OEM specifications.
HVAC Measures – Residential Section 9
Savings Estimation TRM 9‐9 ers
Savings Calculation Annual energy savings formula
Savings data obtained from a CPUC disposition of an IOU workpaper. The savings estimates are applicable to both packaged and split-system HVAC and heat pump units. See TRM224, TRM225, and TRM226 spreadsheets1.
Peak demand reduction From IOU workpaper
Key Parameters
Test-in, test-out results Pre- and post-repair test results that confirm system improvements have been achieved.
Quality Assurance: Design, Installation, Commissioning, and Operation
Program administrators should consider ways to ensure that the maintenance repairs were directly influenced by the program and would not have occurred anyway.
Important Notes
Recent program evaluations indicate that HVAC tune-up measure savings are highly variable and expected savings at the program level may not be achieved. Updated savings estimates that cover all typical tune-up measure types should be available in the near future. When available and applicable, the savings from these evaluations should be used for reporting program savings. Project-specific, custom savings estimates based on test results may provide a higher degree of accuracy and should be used whenever possible.
12013–2014 RES HVAC QM workpaper disposition dated 5/2/2013 regarding IOU workpaper PGEOHVC139 Residential HVAC Quality Maintenance, Revision #0.
9.5.1 Energy Savings Table – Refrigerant Charge
Climate Zone
kWh per Tons of
Unit Capacity
Peak KW Reduction per
Ton of Unit Capacity
CZ02 27 0.092
CZ03 12 0.034
CZ04 38 0.098
CZ05 8 0.045
CZ08 70 0.144
CZ09 83 0.109
CZ10 79 0.151
CZ11 97 0.135
CZ12 60 0.154
CZ13 118 0.142
CZ14 147 0.177
CZ15 167 0.145
CZ16 47 0.140
Section 9 HVAC Measures – Residential
9‐10 Savings Estimation TRM ers
9.5.2 Energy Savings Table – Coil Cleaning
Climate Zone
Evaporator Coil – Savings per Ton of
Capacity
Condenser Coil – Savings per Ton
of Capacity Total Savings per Ton of Capacity
kWh kW kWh kW kWh kW
CZ02 3 0.012 2 0.006 5 0.017
CZ03 2 0.004 1 0.002 2 0.006
CZ04 5 0.012 2 0.006 7 0.018
CZ05 1 0.006 1 0.003 2 0.009
CZ08 9 0.018 4 0.009 13 0.027
CZ09 10 0.014 5 0.007 16 0.020
CZ10 10 0.019 5 0.009 15 0.028
CZ11 12 0.017 6 0.008 18 0.025
CZ12 8 0.019 4 0.010 11 0.029
CZ13 15 0.018 7 0.009 22 0.027
CZ14 19 0.022 9 0.011 28 0.033
CZ15 21 0.018 11 0.009 32 0.027
CZ16 6 0.018 3 0.009 9 0.026
9.5.3 Energy Savings Table – Airflow Adjustment
Climate Zone kWh per Ton of Unit Capacity
Peak KW Reduction per
Ton of Unit Capacity
CZ02 1.75 0.006
CZ03 0.75 0.002
CZ04 2.43 0.006
CZ05 0.52 0.003CZ08 4.33 0.009CZ09 5.20 0.007CZ10 5.07 0.009CZ11 6.15 0.008CZ12 3.80 0.010CZ13 7.47 0.009CZ14 9.40 0.011CZ15 10.72 0.009CZ16 2.98 0.009
Lighting Measures – Residential 10
Savings Estimation TRM 10‐1 ers
10. LIGHTING MEASURES – RESIDENTIAL 10.1 LED Lights
Measure Summary Information
Measure status Active until July 1, 2019
Measure description Installation of a new high efficiency LED lamps & fixtures in single-family, multifamily, & mobile homes.
End use Lighting Project eligibility Fixture replacements, lamp replacements, and fixture retrofits.
Savings type UES
Unit energy savings See TRM204 spreadsheet. With thirty measures for each climate zone, a total of 360 measure savings estimates are provided.
Measure cost See TRM204 spreadsheet
EUL 15 years, rated fixture/lamp life divided by annual operating hours for each building type
Baseline and Efficient Case Conditions Applicable baseline types Dual baseline – early retirement
Baseline description Baseline wattages indicated in measure name
Efficient case description ENERGY STAR1-qualified LED lamps and fixtures for both interior and exterior applications. Measures eligible for early retirement: 1. LED 7 – 9 W replacing 35 W halogen downlight 2. LED 10 – 13 W replacing 50 W halogen downlight 3. LED 14 – 18 W replacing 75 W halogen downlight 4. LED 19 – 21 W replacing 90 W halogen downlight 5. LED 6 – 9 W replacing 29 W halogen (40 W equivalent) 6. LED 10 – 13 W replacing 43 W halogen (60 W equivalent) 7. LED 15 – 21 W replacing 53 W halogen (75 W equivalent) 8. LED 22 W replacing 72 W halogen (100 W equivalent) Measures eligible for natural replacement: 9. LED 6 – 9 W replacing 9 – 13 W CFL 10. LED 10 – 13 W replacing 13 – 15 W CFL 11. LED 22 W replacing 23 W – 30 W CFL Measures eligible for early retirement: 12. LED 4 W replacing 20 W MR16 13. LED 6 W replacing 20 W replacing 35 W MR16 14. LED 7 W replacing 50 W MR16
Savings Calculation Annual energy savings formula
Peak demand reduction
Definitions
= hrs = IE =
Average kW reduction of typical retrofits Default operating hours by building type2 HVAC interactive effects, energy3
Section 10 Lighting Measures – Residential
10‐2 Savings Estimation TRM ers
IEd = CDF=
HVAC interactive effects, demand3 Coincident demand factor3
Key Parameters Operating hours 541 annual hours for interior lights, 1,249 annual hours for exterior lights3
Quality Assurance: Design, Installation, Commissioning, and Operation Verify new fixture or lamp is listed on ENERGY STAR-qualified products list.
Important Notes Savings estimates for measures with incandescent lamp baselines are valid for early retirement measures until the new code requirements4 for general service lamps has effectively removed incandescent lamps from the market.
1ENERGY STAR list of qualified LED fixtures and qualified screw-in LED lamps 2DEER 2011 Update, Appendix A-1, May 2012 3DEER 2013 42016 Appliance Efficiency Regulations, Title 20, Section 1605.3 (k)
10.2 LED Holiday Lights
Measure Summary Information
Measure status Active until July 1, 2019
Measure description Holiday light exchange – replacement of incandescent decorative lights with LED lights.
End use Exterior lighting
Project eligibility Replacement of functional decorative lights
Savings type UES
Unit energy savings See Energy Savings Table
Measure cost See Cost Table1
EUL 5 years2
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – existing conditions
Baseline description Weighted average of a single string of incandescent holiday lights. Exchange rates assume 95% mini lamps, 5% C7 lamps, and 5% C9 lamps.
Efficient case description A single string of LED holiday lights, 17 ft to 25 ft in length. Holiday light strings consist of either 5MM, C5, C6, C7, C9, G12, or mini lights.
Savings Calculation Annual energy savings formula
See TRM205 LED holiday lights spreadsheet for savings calculation.
Peak demand reduction 0 kW
Key Parameters N/A
Quality Assurance: Design, Installation, Commissioning, and Operation
Verify that existing incandescent strings are functional.
Important Notes
N/A 1HolidayLEDs.com 2Although rated lamp life indicates a longer useful life, the lights are not permanently installed, and due to potential damage from repeated removal and installation, the useful life is estimated to be 5 years.
Lighting Measures – Residential Section 10
Savings Estimation TRM 10‐3 ers
10.2.1 Energy Savings Table
LED Holiday Light Type Energy Savings
(kWh)
LED holiday light exchange, 5MM, 17'–25' string 4.2
LED holiday light exchange, C5, 17'–25' string 4.2
LED holiday light exchange, C6, 17'–25' string 7.0
LED holiday light exchange, C7, 17'–25' string 5.1
LED holiday light exchange, C9, 17'–25' string 5.1
LED holiday light exchange, G12, 17'–25' string 7.0
LED holiday light exchange, mini lights, 17'–25' string 4.2
10.2.2 Cost Table
LED Holiday Light Type Cost per String1
5MM $22
C5 $24
C6 $22
C7 $18
C9 $19
G12 $22
Mini lights $22
1HolidayLEDs.com
10.3 ENERGY STAR Ceiling Fan
Measure Summary Information
Measure status Active until July 1, 2019
Measure description ENERGY STAR-qualified ceiling fan
End use HVAC
Project eligibility ENERGY STAR qualified
Savings type UES
Unit energy savings 151 kWh per year
Incremental measure cost
$461 per ceiling fan
EUL 10 years1
Baseline and Efficient Case Conditions Applicable baseline types
Natural replacement – code
Baseline description Standard efficiency unit
Efficient case description
ENERGY STAR-qualified unit
Section 10 Lighting Measures – Residential
10‐4 Savings Estimation TRM ers
Savings Calculation Annual energy savings formula
The energy savings were determined using the ENERGY STAR savings calculator. Calculator assumes demand wattages for low, medium, and high fan speeds for
standard and efficient units. It also gives lighting wattages for standard and efficient units.
ENERGY STAR assumes average daily operating hours for the fan and lighting in different regions of the country and gives a percentage of time at each speed setting. The Pacific region was used to determine operating hours.
Peak demand reduction
The demand savings were calculated by multiplying the demand savings at each fan speed by a weighting factor that corresponds to the percentage of the total operating hours the fan spends at that speed. These three numbers were summed and then added to the demand savings of the lighting to determine the total demand savings of 0.123 kW.
Key Parameters N/A
Quality Assurance: Design, Installation, Commissioning, and Operation Verify that fan is ENERGY STAR qualified.
Important Notes Lighting accounts for 98% of the total measure savings.
1ENERGY STAR Savings Calculator, www.energystar.gov .
Appliances – Residential 11
Savings Estimation TRM 11‐1 ers
11. APPLIANCES – RESIDENTIAL
11.1 ENERGY STAR Refrigerator
Measure Summary Information
Measure status Active until July 1, 2019
Measure description Purchase of an energy efficient refrigerator
End use Refrigeration
Project eligibility ENERGY STAR qualified refrigerators that meet or exceed the CEE Tier I (ENERGY STAR), Tier II, or Tier III efficiency requirements.
Savings type UES
Unit energy savings See Energy Savings Table – varies based efficiency level, freezer location, and presence of an ice maker.
Measure cost $401
EUL 14 years2
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – code
Baseline description Refrigerators meeting the 2014 Federal efficiency standards3
Efficient case description 1. ENERGY STAR (10% more efficient than code) 2. CEE Tier II (15% more efficient than code) 3. CEE Tier III (20% more efficient than code)
Savings Calculation Annual energy savings formula
See TRM208 spreadsheet 1. Refrigerator energy savings are calculated as the difference between the
annual energy use of refrigerators operating at the federal standard and the annual energy use of refrigerators meeting the CEE Tier level standards.
2. Average refrigerator sizes in cubic square feet are determined from the CEE list of qualified refrigerators4
Peak demand reduction Not available
Quality Assurance: Design, Installation, Commissioning, and Operation
1. Determine refrigerator size and type. 2. Verify the refrigerator meets the applicable ENERGY STAR or CEE efficiency levels
Important Notes
N/A 1ENERGY STAR Savings Calculator, www.energystar.gov 2DEER 2011 3Code of Federal Regulations, 10 CFR 430.32(a) 4CEE – Refrigerator Qualifying Product List, 2/16/2016
Section 11 Appliances – Residential
11‐2 Savings Estimation TRM ers
11.1.1 Energy Savings Table
This table provides the energy savings by refrigerator type, size, and efficiency level.
Refrigerator Type
Energy Savings (kWh)
ENERGY STAR (CEE Tier I) CEE Tier II CEE Tier III
Refrigerator: Top-mounted freezer – no ice 40 60 81
Refrigerator: Top-mounted freezer – with ice 50 75 100
Refrigerator: Side-mounted freezer – with ice 65 98 130
Refrigerator: Side-mounted freezer – with through door ice 50 75 100
Refrigerator: Bottom-mounted freezer – no ice 63 95 128
Refrigerator: Bottom-mounted freezer – with ice 78 118 157
Refrigerator: Bottom-mounted freezer – with through door ice 89 135 180
Compact all-refrigerators<7.75 cubic ft – automatic defrost. 33 49 65
11.2 Refrigerator and Freezer Recycling
Measure Summary Information
Measure status Active until July 1, 2019
Measure description Permanent removal and recycling of refrigerators and freezers
End use Refrigeration
Project eligibility Units must be permanently disabled. Units may be located in either conditioned or unconditioned space. Applies to all refrigerator/freezer combination types (e.g., side by side, top-
mount). Applies to refrigerator and freezer sizes from 10 cu ft up to 31 cu ft. Applies to a unit replaced by a new unit. Applies to a unit not replaced by a new unit (e.g., removal of a secondary refrig.).
Savings type UES
Unit energy savings 1. 308 kWh per refrigerator recycled 1
2. 337 kWh per freezer recycled
Measure cost $100 per unit recycled 2
EUL Refrigerators – 5 years; freezers – 4 years 3
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – preexisting conditions
Baseline description Customer continues to use unit or does not recycle unit.
Efficient case description Unit dismantled and recycled.
Savings Calculation Annual energy savings formula
Energy savings are taken directly from the DEER database. Unit savings are weighted values based on a combination of different unit sizes and types, whether the unit was removed from conditioned or unconditioned space, and whether the unit was replaced/recycled or removed/recycled.
Peak demand reduction Refrigerator – 0.061 kW; freezer – 0.006 kW
Appliances – Residential Section 11
Savings Estimation TRM 11‐3 ers
Quality Assurance: Design, Installation, Commissioning, and Operation 1. Record age, make, model, size, and type of unit recycled. 2. Verify that units are operational at time of disposal. 3. Verify that units are properly recycled and no longer functional.
Important Notes Unit energy savings for a new ENERGY STAR refrigerator/freezer are not included in the measure savings.
1DEER 2016 unit energy savings for refrigerators and freezers 2Customer measure costs range from zero (free pickup) up to $150. Since free pickup does not guarantee the units are recycled and taken out of the secondary market, only the cost for recycling was considered. Based on secondary research and recycling vendor costs associated with utility programs, the cost range was determined to be $50–$150. The average ($100) is used for measure cost. 3DEER_EUL_Summary_10-1-2008.xls
11.3 Heat Pump Water Heater
Measure Summary Information
Measure status Active until July 1, 2019
Measure description Replacement of standard electric domestic hot water (DHW) heater with an ENERGY STAR heat pump water heater
End use DHW
Project eligibility 1. Qualifying units are listed on ENERGY STAR Qualifying Product List for heat pump water heaters.
2. Units have an energy factor (EF) equal to or greater than 2.3. 3. Current available unit sizes: 40–80 gallons.
Savings type UES
Unit energy savings 308–1,628 kWh per water heater. See Energy Savings Table.
Measure cost $905– $1,279 per water heater1
EUL 10 years2
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – code
Baseline description Electric resistance hot water heater, EF = 0.91
Efficient case description ENERGY STAR-qualified heat pump water heater, EF = 2.3
Savings Calculation Annual energy savings
Savings were derived from the National Renewable Energy Laboratory (NREL) study and analysis on hot water heat pumps (HWHPs).3 Energy modeling software (TRNSYS) was used to estimate savings for a prototypical home. For HWHP installed in the conditioned space of the home, the additional heating load for home’s HVAC system is included in the savings results. NREL’s analysis concluded that a HWHP’s overall operating performance is less efficient than indicated by standard test procedures used to develop unit energy factor (EF) ratings.
Peak demand reduction NA – based on typical energy use profiles, a DHW heater does not contribute to peak demand
Key Parameters
Average daily use EF
Gallons per day Energy factor – efficiency rating
Quality Assurance: Design, Installation, Commissioning, and Operation 1. Verify that the unit is ENERGY STAR qualified. 2. If HPWP has an exhaust duct, verify that the duct is adequately sized.
Section 11 Appliances – Residential
11‐4 Savings Estimation TRM ers
Important Notes 1. HPWHs use the surrounding air as a heat source. If the HWHP is installed within the home, it imposes a
heating load on the home’s air conditioning system. 2. Unit efficiency decreases as the ambient temperature falls below 68°F. If ambient space temperature falls
below 45°F, the unit’s electrical resistance heaters are enabled, significantly lowering the heater’s energy performance.
1 RTF hot water heat pump analysis, Internet research (Dec-2013) 2 Equal to average tank warranty of an ENERGY STAR unit 3 NREL Technical Report # NREL/TP-5500-58594, July 2013
11.3.1 Energy Savings Tables
The tables present the energy savings for a two typical HWHP sizes. Savings are dependent
upon the location of the HPWP and its interactive effects with the home’s AC system. California
climate zones are mapped to the more general climate zone types used in the NREL analysis.
The analysis site‐to‐source energy conversation factor (3.365) was used to convert source results
into estimated savings per installed heater.
Climate Zone Measure Name
Energy Savings (kWh)
Energy Savings (Therms)
2, 3, 4, 5 ENERGY STAR HPWH, 50 gal., space heating – heat pump 1,266 0
2, 3, 4, 5 ENERGY STAR HPWH, 50 gal., space heating – gas 1,725 -72.2
2, 3, 4, 5 ENERGY STAR HPWH, 50 gal., space heating – elec 343 0
2, 3, 4, 5 ENERGY STAR HPWH, 50 gal., located in garage/basement 1,504 0
2, 3, 4, 5 ENERGY STAR HPWH, 80 gal., space heating – heat pump 1,504 0 2, 3, 4, 5 ENERGY STAR HPWH, 80 gal., space heating – gas 1,964 -90.6
2, 3, 4, 5 ENERGY STAR HPWH, 80 gal., space heating – elec 308 0
2, 3, 4, 5 ENERGY STAR HPWH, 80 gal., located in garage/basement 1,628 0
8, 9, 10, 11, 12, 14, 15 ENERGY STAR HPWH, 50 gal., space heating – heat pump 1,339 0
8, 9, 10, 11, 12, 14, 15 ENERGY STAR HPWH, 50 gal., space heating – gas 1,582 - 39.5
8, 9, 10, 11, 12, 14, 15 ENERGY STAR HPWH, 50 gal., space heating – elec 800 0 8, 9, 10, 11, 12, 14, 15 ENERGY STAR HPWH, 50 gal., located in garage/basement 1,175 0
8, 9, 10, 11, 12, 14, 15 ENERGY STAR HPWH, 80 gal., space heating – heat pump 1,464 0
8, 9, 10, 11, 12, 14, 15 ENERGY STAR HPWH, 80 gal., space heating – gas 1,707 -48.8
8, 9, 10, 11, 12, 14, 15 ENERGY STAR HPWH, 80 gal., space heating – elec 785 0
8, 9, 10, 11, 12, 14, 15 ENERGY STAR HPWH, 80 gal., located in garage/basement 1,330 0
16 ENERGY STAR HPWH, 50 gal., space heating – heat pump 1,279 0
16 ENERGY STAR HPWH, 50 gal., space heating – gas 1,816 -60.3
16 ENERGY STAR HPWH, 50 gal., space heating – elec 668 0
16 ENERGY STAR HPWH, 50 gal., located in garage/basement 839 0
16 ENERGY STAR HPWH, 80 gal., space heating – heat pump 1,603 0
16 ENERGY STAR HPWH, 80 gal., space heating – gas 2,139 -80.8
16 ENERGY STAR HPWH, 80 gal., space heating – elec 758 0
16 ENERGY STAR HPWH, 80 gal., located in garage/basement 1,278 0
Appliances – Residential Section 11
Savings Estimation TRM 11‐5 ers
11.4 ENERGY STAR Dishwasher, Compact and Standard Size
Measure Summary Information
Measure status Active until July 1, 2019
Measure description ENERGY STAR-qualified dishwasher, both standard and compact size
End use Appliance
Project eligibility Installation of an ENERGY STAR-qualified dishwasher. A standard size dishwasher holds eight or more place settings; compact size holds fewer than eight. Meets CEE Tier 11/ENERGY STAR efficiency standards:
Standard size unit minimum energy use of 270 kWh per year Compact size unit minimum energy use of 203 kWh per year
Savings type UES
Unit energy savings Water source: natural gas water heater: Standard size unit: 16 kWh/yr, 0.95 therms/yr, 161 gallons/yr Compact size unit: 8 kWh/yr, 0.5 therms/yr, 0 gallons/yr Water source: electric water heater: Standard size unit: 37 kWh/yr, 161 gallons/yr Compact size unit: 19 kWh/yr, 0 gallons/yr
Incremental measure cost $1022
EUL 10 years1
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – code
Baseline description Standard efficiency unit
Efficient case description ENERGY STAR-qualified unit
Savings Calculation Annual energy savings formula
1. The energy savings were determined using the ENERGY STAR appliance calculator2.
2. Calculation assumes the annual energy use of a standard efficiency and an efficient standard size dishwasher. The standard efficiency dishwasher is assumed to use 307 kWh per year, which is the maximum allowed by federal code. The efficient dishwasher is assumed to use 270 kWh per year, which is the maximum allowed by ENERGY STAR.
3. Calculation assumes the annual energy use of a standard efficiency compact dishwasher is 222 kWh per year, which is the maximum allowed by federal code. The efficient compact unit is assumed to use 203 kWh per year, which is the maximum allowed by ENERGY STAR.
4. Calculation assumes 215 loads per year for both the standard size and compact dishwashers.
Peak demand reduction 0 kW – assumes dishwasher is not running during peak demand period
Key Parameters N/A
Quality Assurance: Design, Installation, Commissioning, and Operation Verify that the dishwasher is ENERGY STAR qualified and meets CEE Tier 1 efficiency specifications.
Important Notes Therm savings are due to reduced water consumption
1CEE High-Efficiency Dishwasher Specification: Effective January 29, 2016: 2ENERGY STAR appliance calculator. Current 2016 version can be found in TRM spreadsheet. Also available at: www.energystar.gov.
Section 11 Appliances – Residential
11‐6 Savings Estimation TRM ers
11.5 High Efficiency Residential Clothes Washer
Measure Summary Information
Measure status Active until July 1, 2019
Measure description Installation of a high efficiency clothes washer in a residential application
End use Appliance
Project eligibility ENERGY STAR clothes washer meeting applicable CEE efficiency levels
Savings type UES
Unit energy savings See Energy Savings Table
Incremental measure cost Incremental cost 1
1. ENERGY STAR, CEE Tier 1: $165 2. CEE Tier 2, $195 3. CEE Tier 3, $277
EUL 14 years2 Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – code, dual baseline – early retirement
Baseline description Early retirement: Top load: MEF = 1.29 WF = 8.4 Front load: IMEF = 1.84 IWF = 4.7
Natural replacement: Top-load: IMEF = 2.0 IWF = 6.0 Front-load: IMEF = 2.2 IWF = 4.5
Efficient case description Clothes washer meeting applicable efficiency level4: ENERGY STAR (top-load): IMEF 2.06; IWF 4.3 ENERGY STAR (front-load): IMEF 2.38; IWF 3.7 ENERGY STAR (<= 2.5 cu-ft): IMEF 2.07, IWF 4.2 CEE Tier 1: IMEF 2.38; IWF 3.7 (ENERGY STAR front-load) CEE Tier 2: IMEF 2.74; IWF 3.2 CEE Tier 3: IMEF 2.92; IWF 3.2
Savings Calculation Annual energy savings formula
ENERGY STAR calculator used to estimate savings4.
Peak demand reduction N/A
Definitions MEF=
WF=
IMEF =
IWF =
Modified energy factor – takes into account the amount of dryer energy used to remove the remaining moisture content in washed items, in addition to the machine energy and water heating energy of the washer. Water factor ‒ The number of gallons per cycle per cubic foot that the clothes washer uses. The lower the water factor, the more efficient the washer. Integrated modified energy factor – Adds the combined low-power mode energy consumption to the MEF calculation. Integrated water factor – Considers the water consumption for all wash cycles.
Key Parameters Washer load 261 washer cycles per year
Quality Assurance: Design, Installation, Commissioning, and Operation Verify that clothes washer meets applicable efficiency requirements.
Important Notes New federal standards5 as of January 2018
Appliances – Residential Section 11
Savings Estimation TRM 11‐7 ers
1PG&E work paper, PGECOAPP114 Clothes Washers Residential Revision 3 – August 24, 2012 2 EERE 2012-04 Direct Final Rule Technical Support Document, Chapter 8 3CEE Specs – Effective March 7, 2015 4Savings Calculator for ENERGY STAR Qualified Appliances – revised March 7, 2015 5 DOE Code of Federal Regulations, 10 CFR parts 429 and 430
11.5.1 Energy Savings Table
The first table below provides the energy savings for a natural replacement baseline, while the
second table provides the energy savings for the first baseline of an early retirement measure.
The savings values are based on the energy source types for the hot water supply and clothes
dryer. Clothes dryer savings (less dry time) are included.
Washer Type
Energy Source Natural Replacement Savings by Efficiency Level
Hot Water Dryer
CEE Tier I (kWh)
CEE Tier I (Therms)
CEE Tier II (kWh)
CEE Tier II (Therms)
CEE Tier III (kWh)
CEE Tier III (Therms)
Top loading
Electric Electric 93 0 161 0 189 0
Electric Gas 101 0 101 2.3 101 3.4
Gas Electric 13 3.7 81 3.7 108 3.7
Gas Gas 20 3.4 20 6.0 20 7.0
Front loading
Electric Electric 36 0 96 0 121 0
Electric Gas 28 0.3 28 2.6 28 3.6
Gas Electric 14 1.0 74 1.0 99 1.0
Gas Gas 6 1.3 6 3.6 6 4.6
Washer Type
Energy Source Early Retirement Savings by Efficiency Level
Hot Water Dryer
CEE Tier I (kWh)
CEE Tier I (Therms)
CEE Tier II (kWh)
CEE Tier II (Therms)
CEE Tier III (kWh)
CEE Tier III (Therms)
Top loading
Electric Electric 351 0 499 0 526 0
Electric Gas 101 9.6 101 15.2 101 16.3
Gas Electric 270 3.7 418 3.7 446 3.7
Gas Gas 20 13.2 20 18.9 20 19.9
Front loading
Electric Electric 133 0 193 0 218 0
Electric Gas 28 4 28 6.3 28 7.3
Gas Electric 111 1 171 1 196 1
Gas Gas 6 5 6 7.3 6 8.3
Note: Though there are only a small number of top-loading washers that meet CEE Tier II and Tier III specifications, it is likely that more models will be available in the near future.
Section 11 Appliances – Residential
11‐8 Savings Estimation TRM ers
11.6 ENERGY STAR Television
Measure Summary Information
Measure status Active until July 1, 2019
Measure description ENERGY STAR-qualified television
End use Appliance
Project eligibility Purchase of an ENERGY STAR-qualified television.
Savings type UES
Unit energy savings See Energy Savings Table for savings by product size Savings are provided for televisions that meet ENERGY STAR qualifications
Incremental measure cost $10 - $601 See Cost Table
EUL 7 years2
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – code
Baseline description Standard efficient television, with the efficiency determined as the average of all televisions in a size class that do not meet ENERGY STAR standards
Efficient case description ENERGY STAR-qualified television that either meet or exceed ENERGY STAR energy use requirements
Savings Calculation Annual energy savings formula
See TRM221 spreadsheet. Savings are estimated using data obtained from ENERGY STAR (television qualification criteria - version 7) and IOU workpaper.
Peak demand reduction 0.000 – 0.002 kW
Key Parameters N/A
Quality Assurance: Design, Installation, Commissioning, and Operation Verify that the television is an ENERGY STAR Version 7 certified product.
Important Notes N/A
1IOU workpaper, PGECOAPP104, May 2012 2 ENERGY STAR televisions – version 7, effective October 30, 2015
11.6.1 Energy Savings and Cost Table
Screen Size Annual Energy Savings (kWh)
Peak Demand Savings (kW)
Incremental Cost
10"–25.4" 20.4 0.000 $10
25.5"–35" 66.1 0.001 $20
36"–39" 78.9 0.001 $30
40"–42" 91.9 0.002 $40
43"–49" 107.8 0.002 $50
50" and larger 146.4 0.002 $60
Appliances – Residential Section 11
Savings Estimation TRM 11‐9 ers
11.7 Heat Pump Clothes Dryers
Measure Summary Information
Measure status Active until July 1, 2019
Measure description Heat pump clothes dryers work by having a heat pump that extracts heat from the ambient air and releases that heat at a higher temperature inside the dryer drum. The dryers are ventless and can be installed in areas with no access for exhaust ventilation.
End use Appliance
Project eligibility Heat pump clothes dryer that has a certified combined energy factor of at least 6.83 at normal settings
Savings type UES
Unit energy savings 446 kWh
Incremental measure cost $2631 - See TRM220 spreadsheet
EUL 11 years2
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – code
Baseline description Conventional clothes dryer meeting federal efficiency standards
Efficient case description Heat pump clothes dryer with a combined energy factor of at least 6.83 at normal settings.
Savings Calculation Annual energy savings formula
See TRM220 spreadsheet. Savings are calculated as the average of the test results from the Super Efficient Dryer Initiative (SEDI).
Peak demand reduction N/A
Key Parameters Drying time Compared to a conventional dryer, the drying time for heat pump clothes dryer is
significantly longer.
Quality Assurance: Design, Installation, Commissioning, and Operation Verify that the heat pump clothes dryer meets or exceeds the efficiency requirements.
Important Notes Heat pump clothes dryers are considered an emerging technology.
1Super Efficient Dryer Initiative (2013) 2 DEER, DEER2014-EUL-table-update_2014-02-05 (1).xlsx
Building Envelope – Residential 12
Savings Estimation TRM 12‐1 ers
12. BUILDING ENVELOPE – RESIDENTIAL
12.1 Ceiling Insulation Measure Summary Information
Measure status Active until July 1, 2019
Measure description 1. Increasing ceiling insulation levels to R-30 or R-38 by adding additional insulation to the ceiling (in attics or crawl spaces) or to the roof (non-vented attics).
2. Add R-11 insulation in residential dwellings in attics or crawl spaces with limited space availability (R-30 cannot be achieved).
3. Add R-19 insulation to the ceiling (attic or crawl spaces) or roof (non-vented attics).
End use HVAC
Project eligibility 1. Applicable to air conditioned or heated residential single and multifamily dwellings. 2. Not eligible if increase in insulation is required by code.
Savings type UES
Unit energy savings See Energy Savings Tables
Measure cost Costs1 are per sq ft of insulation installed: 1. Ceiling insulation, increase from 0 to R-30: $0.54 2. Ceiling insulation, increase from 0 to R-38: $0.54 3. Ceiling insulation, R-11 addition: $0.42 4. Ceiling insulation, R-19 addition: $0.54 5. Ceiling insulation, R-30 addition: $0.86
EUL 20 years2
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – preexisting conditions
Baseline description 1. No ceiling insulation for measures 0 to R-30 and 0 to R38. All other measures assume insulation is added to preexisting insulation.
Efficient case description 1. The insulation R-value for preexisting and additional insulation equals or exceeds R-19, R-30, or R-38.
2. For restricted spaces, additional insulation of at least R-11 is added.
Savings Calculation Annual energy savings Measure savings values from DEER 2014 are weighted by building vintage and by
HVAC system type. Energy savings values for electrically heated homes are based on heat pumps with electric back-up heat and electric resistance heat with no cooling.
Peak demand reduction See Energy Savings TableKey Parameters N/A Quality Assurance: Design, Installation, Commissioning, and Operation
Determine preexisting insulation levels. Determine if dwelling has mechanical cooling and/or natural gas, heat pump, or electrical resistance heating.
Important Notes N/A
1Measure cost data was derived from retail market research.
2DEER_EUL_Summary_10-1-2008.xls
Section 12 Building Envelope – Residential
12‐2 Savings Estimation TRM ers
12.1.1 Energy Savings Table – Weighted Average for all HVAC Types
This table provides the energy savings and peak demand reduction for each climate zone.
Savings data is per square foot of installed insulation. Savings are applicable to both single‐
family and multifamily homes.
Measure Name CZ02 CZ03 CZ04
kW kWh Therms kW kWh Therms kW kWh ThermsCeiling insulation, 0 to R-30 0.000 0.541 0.198 0.000 0.518 0.197 0.000 0.505 0.161
Ceiling insulation 0 to R-38 0.000 0.554 0.203 0.000 0.531 0.203 0.000 0.517 0.166
Ceiling insulation, R-11 addition 0.000 0.024 0.009 0.000 0.019 0.009 0.000 0.018 0.007
Ceiling insulation, R-19 addition 0.000 0.034 0.013 0.000 0.028 0.012 0.000 0.026 0.010
Ceiling insulation, R-30 addition 0.000 0.043 0.016 0.000 0.036 0.016 0.000 0.033 0.013
Measure Name
CZ05 CZ08 CZ09
kW kWh Therms kW kWh Therms kW kWh Therms
Ceiling insulation, 0 to R-30 0.000 0.489 0.222 0.000 0.510 0.123 0.001 0.785 0.154
Ceiling insulation, 0 to R-38 0.000 0.502 0.228 0.000 0.522 0.126 0.001 0.803 0.158
Ceiling insulation, R-11 addition 0.000 0.019 0.009 0.000 0.037 0.010 0.000 0.033 0.007
Ceiling insulation, R-19 addition 0.000 0.028 0.013 0.000 0.049 0.014 0.000 0.046 0.011
Ceiling insulation, R-30 addition 0.000 0.035 0.017 0.000 0.060 0.017 0.000 0.059 0.013
Measure Name CZ10 CZ11 CZ12
kW kWh Therms kW kWh Therms kW kWh Therms
Ceiling insulation, 0 to R-30 0.001 0.860 0.163 0.001 0.953 0.180 0.001 0.874 0.199
Ceiling insulation, 0 to R-38 0.001 0.883 0.167 0.001 0.977 0.185 0.001 0.895 0.204
Ceiling insulation, R-11 addition 0.000 0.033 0.007 0.000 0.042 0.008 0.000 0.028 0.007
Ceiling insulation, R-19 addition 0.000 0.047 0.010 0.000 0.061 0.011 0.000 0.041 0.010
Ceiling insulation, R-30 addition 0.000 0.058 0.013 0.000 0.078 0.014 0.000 0.053 0.013
Measure Name CZ14 CZ15 CZ16
kW kWh Therms kW kWh Therms kW kWh Therms
Ceiling insulation, 0 to R-30 0.001 1.520 0.203 0.001 1.640 0.106 0.000 0.660 0.222
Ceiling insulation, 0 to R-38 0.001 1.560 0.207 0.001 1.680 0.109 0.000 0.678 0.228
Ceiling insulation, R-11 addition 0.000 0.047 0.007 0.000 0.093 0.007 0.000 0.035 0.014
Ceiling insulation, R-19 addition 0.000 0.068 0.010 0.000 0.129 0.009 0.000 0.050 0.020
Ceiling insulation, R-30 addition 0.000 0.088 0.013 0.000 0.161 0.012 0.000 0.063 0.024
Building Envelope – Residential Section 12
Savings Estimation TRM 12‐3 ers
12.1.2 Energy Savings Table – Air Source Heat Pump
Measure Name CZ02 CZ03 CZ04
kW kWh Therms kW kWh Therms kW kWh ThermsCeiling insulation, 0 to R-30 2.810 0.001 -0.001 2.060 0.001 -0.001 2.220 0.001 0.000
Ceiling insulation, 0 to R-38 2.880 0.001 -0.001 2.100 0.001 -0.001 2.270 0.001 -0.001
Ceiling insulation, R-11 addition 0.131 0.000 0.000 0.096 0.000 0.000 0.097 0.000 0.000
Ceiling insulation, R-19 addition 0.186 0.000 0.000 0.135 0.000 0.000 0.138 0.000 0.000
Ceiling insulation, R-30 addition 0.235 0.000 0.000 0.170 0.000 0.000 0.175 0.000 0.000
Measure Name
CZ05 CZ08 CZ09
kW kWh Therms kW kWh Therms kW kWh Therms
Ceiling insulation, 0 to R-30 2.420 0.001 -0.001 1.810 0.001 0.000 2.390 0.001 0.000
Ceiling insulation, 0 to R-38 2.470 0.001 -0.001 1.850 0.001 0.000 2.440 0.001 0.000
Ceiling insulation, R-11 addition 0.117 0.000 0.000 0.112 0.000 0.000 0.167 0.000 0.000
Ceiling insulation, R-19 addition 0.165 0.000 0.000 0.154 0.000 0.000 0.226 0.000 0.000
Ceiling insulation, R-30 addition 0.208 0.000 0.000 0.188 0.000 0.000 0.278 0.000 0.000
Measure Name CZ10 CZ11 CZ12
kW kWh Therms kW kWh Therms kW kWh Therms
Ceiling insulation, 0 to R-30 2.500 0.001 -0.001 2.910 0.001 -0.001 2.740 0.001 -0.001
Ceiling insulation, 0 to R-38 2.550 0.001 -0.001 2.970 0.001 -0.001 2.800 0.001 -0.001
Ceiling insulation, R-11 addition 0.137 0.000 0.000 0.159 0.000 0.000 0.148 0.000 0.000
Ceiling insulation, R-19 addition 0.190 0.000 0.000 0.220 0.000 0.000 0.205 0.000 0.000
Ceiling insulation, R-30 addition 0.235 0.000 0.000 0.274 0.000 0.000 0.255 0.000 0.000
Measure Name CZ14 CZ15 CZ16
kW kWh Therms kW kWh Therms kW kWh Therms
Ceiling insulation, 0 to R-30 3.690 0.002 -0.001 2.800 0.001 0.000 4.970 0.001 -0.001
Ceiling insulation, 0 to R-38 3.780 0.002 -0.001 2.870 0.002 0.000 5.070 0.001 -0.001
Ceiling insulation, R-11 addition 0.227 0.000 0.000 0.186 0.000 0.000 0.227 0.000 0.000
Ceiling insulation, R-19 addition 0.315 0.000 0.000 0.256 0.000 0.000 0.318 0.000 0.000
Ceiling insulation, R-30 addition 0.392 0.000 0.000 0.316 0.000 0.000 0.397 0.000 0.000
Section 12 Building Envelope – Residential
12‐4 Savings Estimation TRM ers
12.1.3 Energy Savings Table – Electric Resistance Heating
Measure Name CZ02 CZ03 CZ04
kW kWh Therms kW kWh Therms kW kWh ThermsCeiling insulation, 0 to R-30 5.770 0.000 0.000 5.200 0.000 0.000 4.650 0.000 0.000
Ceiling insulation, 0 to R-38 5.900 0.000 0.000 5.310 0.000 0.000 4.750 0.000 0.000
Ceiling insulation, R-11 addition 0.304 0.000 0.000 0.261 0.000 0.000 0.241 0.000 0.000
Ceiling insulation, R-19 addition 0.424 0.000 0.000 0.363 0.000 0.000 0.334 0.000 0.000
Ceiling insulation, R-30 addition 0.531 0.000 0.000 0.454 0.000 0.000 0.416 0.000 0.000
Measure Name
CZ05 CZ08 CZ09
kW kWh Therms kW kWh Therms kW kWh Therms
Ceiling insulation, 0 to R-30 6.090 0.000 0.000 3.560 0.000 0.000 3.910 0.000 0.000
Ceiling insulation, 0 to R-38 6.230 0.000 0.000 3.640 0.000 0.000 3.990 0.000 0.000
Ceiling insulation, R-11 addition 0.293 0.000 0.000 0.260 0.000 0.000 0.282 0.000 0.000
Ceiling insulation, R-19 addition 0.410 0.000 0.000 0.349 0.000 0.000 0.379 0.000 0.000
Ceiling insulation, R-30 addition 0.514 0.000 0.000 0.422 0.000 0.000 0.458 0.000 0.000
Measure Name CZ10 CZ11 CZ12
kW kWh Therms kW kWh Therms kW kWh Therms
Ceiling insulation, 0 to R-30 4.180 0.000 0.000 4.540 0.000 0.000 4.650 0.000 0.000
Ceiling insulation, 0 to R-38 4.270 0.000 0.000 4.640 0.000 0.000 4.740 0.000 0.000
Ceiling insulation, R-11 addition 0.296 0.000 0.000 0.289 0.000 0.000 0.316 0.000 0.000
Ceiling insulation, R-19 addition 0.400 0.000 0.000 0.394 0.000 0.000 0.427 0.000 0.000
Ceiling insulation, R-30 addition 0.486 0.000 0.000 0.483 0.000 0.000 0.519 0.000 0.000
Measure Name CZ14 CZ15 CZ16
kW kWh Therms kW kWh Therms kW kWh Therms
Ceiling insulation, 0 to R-30 4.810 0.000 0.000 0.000 0.000 0.000 8.440 0.000 0.000
Ceiling insulation, 0 to R-38 4.910 0.000 0.000 0.000 0.000 0.000 8.610 0.000 0.000
Ceiling insulation, R-11 addition 0.310 0.000 0.000 0.000 0.000 0.000 0.343 0.000 0.000
Ceiling insulation, R-19 addition 0.423 0.000 0.000 0.000 0.000 0.000 0.482 0.000 0.000
Ceiling insulation, R-30 addition 0.519 0.000 0.000 0.000 0.000 0.000 0.607 0.000 0.000
Building Envelope – Residential Section 12
Savings Estimation TRM 12‐5 ers
12.2 Wall Insulation
Measure Summary Information Measure status Active until July 1, 2019
Measure description Adding insulation of a minimum of R-13 to previously uninsulated walls separating conditioned and unconditioned spaces.
End use HVAC
Project eligibility 1. Applicable to air-conditioned or heated residential single-family and multifamily dwellings.
2. Installed as a retrofit to an existing uninsulated wall connecting conditioned and unconditioned living areas.
3. Measure covers a minimum of 75% of the living area. 4. Measure is not applicable if installed as part of a retrofit that requires the
building envelope be upgraded to meet Title 24 code requirements.
Savings type UES
Unit energy savings 1. See Energy Savings Table. 2. Savings unit values are per square foot of insulation installed.
Incremental measure cost 1. $0.94 per square foot of insulation installed
EUL 20 years1
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – preexisting conditions
Baseline description No insulation
Efficient case description Insulation of R-13 or greater
Savings Calculation Annual energy savings formula
Saving values obtained from DEER are weighted based on building vintage and HVAC type.
Peak demand reduction Not applicable. Insulation saves energy by reducing the duty cycle of HVAC equipment, resulting in no appreciable demand reduction.
Key Parameters N/A
Quality Assurance: Design, Installation, Commissioning, and Operation Ensure that installed insulation meets minimum requirements. Ensure that preexisting walls have no insulation. Verify that installation of insulation is not required to meet Title 24 code requirements. Verify that wall has conditioned space on one side and unconditioned space on the other side.
Important Notes N/A
1DEER_EUL_Summary_10-1-2008.xls
Section 12 Building Envelope – Residential
12‐6 Savings Estimation TRM ers
12.2.1 Energy Savings Table
The following table provides the energy savings for single‐family and multifamily dwellings.
Savings are per square feet of installed insulation.
Climate Zone
Single-Family Savings (kWh)
Single-Family Savings (Therms)
Multifamily Savings (kWh)
Multifamily Savings (Therms)
CZ02 0.241 0.139 0.223 0.076
CZ03 0.197 0.153 0.245 0.087
CZ04 0.210 0.126 0.193 0.071
CZ05 0.216 0.162 0.192 0.089
CZ08 0.224 0.099 0.140 0.057
CZ09 0.297 0.106 0.145 0.054
CZ10 0.326 0.111 0.164 0.056
CZ11 0.331 0.133 0.225 0.074
CZ12 0.273 0.133 0.228 0.790
CZ14 0.493 0.131 0.230 0.065
CZ15 0.574 0.074 0.232 0.036
CZ16 0.403 0.226 0.319 0.105
12.2.2 Measure Cost Table
The table provides insulation material costs1. Labor costs are not included.
Unit Size and Type Measure Cost,
per sq ft
Wall insulation – R-13 – single family $0.32
Wall insulation – R-13 – multifamily $0.32
1SCE work paper, SCE13BS010, Revision, 0, June 1, 2012
12.3 Solar Attic Fan
Measure Summary Information
Measure status Active until July 1, 2019
Measure description Installation of a solar attic fan to replace an electric-powered attic fan
End use HVAC
Project eligibility All sizes of solar-powered attic fans
Savings type UES
Unit energy savings See Energy Savings Table
Measure cost $300 per 1,000 cfm fan or $0.30 per cfm1
EUL 10 years
Building Envelope – Residential Section 12
Savings Estimation TRM 12‐7 ers
Baseline and Efficient Case Conditions Applicable baseline types
Natural replacement – existing conditions
Baseline description Electric-powered fan with equivalent annual cooling capacity as solar-powered fan
Efficient case description
Solar attic fan
Savings Calculation Annual energy savings 1. Savings based on eliminating the use of electric-powered attic fan.
2. Assumes a 1,000 cfm solar fan has the same annual cooling effect as a 600 cfm electric-powered fan. Solar fan cannot always meet ventilation demands (i.e., after sunset or when PV panel is shaded).
3. Annual operating hours of the fan vary by climate zone. TMY weather data was used to determine the operating hours for each climate zone.
See TRM213 residential solar attic fan spreadsheet for savings calculations. Peak demand reduction 0.0004 kW per cfm
Key Parameters N/A
Quality Assurance: Design, Installation, Commissioning, and Operation
Verify that the fan’s solar panel is optimally positioned to maximize its power output.
Important Notes
N/A 1Grainger retail pricing
12.3.1 Energy Savings Table
The following table provides the energy savings values for solar attic fan by climate zone.
Savings are presented in per cfm and per 1,000 cfm.
Climate Zone Energy Savings per
cfm (kWh) Energy Savings per
1,000 cfm (kWh)
CZ02 0.156 156
CZ03 0.019 19
CZ04 0.085 85
CZ05 0.022 22
CZ08 0.130 130
CZ09 0.217 217
CZ10 0.295 295
CZ11 0.295 295
CZ12 0.220 220
CZ14 0.365 365
CZ15 0.766 766
CZ16 0.105 105
Section 12 Building Envelope – Residential
12‐8 Savings Estimation TRM ers
12.4 Reflective Window Film
Measure Summary Information
Measure status Active until July 1, 2019
Measure description Retrofit of existing single-pane clear glass windows with reflective window film
End use HVAC
Project eligibility Applicable to existing air-conditioned or heated residential single-family and multifamily dwellings. North-facing windows are excluded.
Savings type UES
Unit energy savings Energy savings varies by climate zone - See Energy Savings Table
Incremental measure cost $3.32 per sq ft of window glass covered
EUL 10 years1
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – preexisting conditions
Baseline description Single-pane clear-glass windows with an assumed SHGC of 0.82
Efficient case description Single-pane tinted glass windows with an assumed SHGC of 0.39
Savings Calculation Annual energy savings formula
Savings data is from IOU work paper2. Based on multifamily updated savings values from DEER 2005
Peak demand reduction See Savings Table
Definitions SHGC
= Solar heat gain coefficient
Key Parameters N/A
Quality Assurance: Design, Installation, Commissioning, and Operation 3. Verify performance rating of window film.
4. Verify that dwelling space is conditioned.
Important Notes
N/A
1DEER_EUL_Summary_10-1-2008.xls
2PG&E work Paper PGECOBLD108, “Reflective Window Film,” Revision 3, June 1, 2012
12.4.1 Savings Table
This table provides the energy savings and peak demand reduction for reflective window film
by climate zone. Savings are per square feet of window glass covered.
Climate Zone Energy Savings
(kWh per sf) Demand Reduction
(kW per sf)
2 1.16 0.001
3 0.43 0.005
4 1.07 0.003
5 0.63 0.004
8 1.48 0.002
Building Envelope – Residential Section 12
Savings Estimation TRM 12‐9 ers
Climate Zone Energy Savings
(kWh per sf) Demand Reduction
(kW per sf)
9 1.56 0.001
10 1.32 0.001
11 1.17 0.001
12 1.16 0.001
14 1.50 0.001
15 2.07 0.001
16 0.72 0.003
12.5 Solar Screen
Measure Summary Information
Measure status Active until July 1, 2019
Measure description Installation of an exterior window solar screen
End use HVAC – residential
Project eligibility Applicable to existing air-conditioned or heated residential single-family and multifamily dwellings. North-facing windows are excluded.
Savings type UES
Unit energy savings Energy savings varies by climate zone – See Energy Savings Table Incremental measure cost $3 per sq ft of installed screen
EUL 10 years1
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – preexisting conditions
Baseline description Single or dual-pane window with bug screen
Efficient case description Dark colored solar screen with ≤ 5% openness factor
Savings Calculation Annual energy savings formula
See TRM219 spreadsheet. The savings analysis is based on the CEC solar heat gain coefficient worksheet2. To estimate savings, the solar screen SHGC reduction is compared to the SHGC reduction for the reflective window film measure (81.2%). An adjustment factor (86.5%) is also applied to account for the difference in total installed screen area compared to the total window glass area. The solar screen savings is the product of the overall adjustment factor (70.2%) multiplied by the reflective window film savings.
Peak demand reduction See Savings Table.
Definitions SHGC
Openness factor
= Solar heat gain coefficient = Measure of the tightness of the solar screen weave
Key Parameters N/A
Quality Assurance: Design, Installation, Commissioning, and Operation
Verify that space is conditioned.
Important Notes N/A
1DEER_EUL_Summary_10-1-2008.xls 2CEC CF10WKS-03-E SHGC
Section 12 Building Envelope – Residential
12‐10 Savings Estimation TRM ers
12.5.1 Savings Table
This table provides the energy savings and peak demand reduction for solar screens by climate
zone. Savings are per square feet of installed screen.
Climate Zone Energy Savings
(kWh per sf) Demand Reduction (kW
per sf)
2 0.81 0.001
3 0.30 0.003
4 0.75 0.002
5 0.44 0.003
8 1.04 0.001
9 1.10 0.001
10 0.93 0.001
11 0.82 0.001
12 0.81 0.001
14 1.05 0.001
15 1.45 0.001
16 0.51 0.002
12.6 Reduced Building Leakage
Measure Summary Information
Measure status Active until July 1, 2019
Measure description Blower door test and seal of building envelope air leaks, resulting in either a 15% or 30% reduction in building leakage.
End use HVAC – residential
Project eligibility Existing single-family home with an infiltration rate of 0.350 air changes per hour (ACH) or higher.
Savings type UES
Unit energy savings See Energy Savings Table. Savings estimates are per home. Incremental measure cost $350 for a 15% reduction and $500 for a 30% reduction1 EUL 11 years2
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – preexisting conditions
Baseline description Air conditioned single-family home, with an infiltration rate of 0.350 ACH
Efficient case description Building air gaps sealed with an overall building leakage reduction of either 15% or 30%
Savings Calculation Annual energy savings formula
Savings estimates from IOU work paper1 are based on building energy simulation models of existing single-family homes (vintages 1978–2001). The home prototype is developed from CEC Residential Appliance Saturation Survey (RASS) data. The AC is an electric cooling/gas heating system.
Peak demand reduction See Savings Table Definitions
Blower door test A blower door is a diagnostic tool for determining the airtightness of a whole building. The blower door is mounted to the frame of an exterior door. The house is de-pressurized and the infiltration rate is measured with an airflow manometer.
Building Envelope – Residential Section 12
Savings Estimation TRM 12‐11 ers
Key Parameters
N/A
Quality Assurance: Design, Installation, Commissioning, and Operation Verify that the pre- and post-air sealing test results indicate the building air leakage was effectively reduced.
Important Notes
N/A 1SCE13MI005, March 2013 2DEER_EUL_Summary_10-1-2008.xls
12.6.1 Savings Table
This table provides the energy savings and peak demand reduction per home for each climate
zone. Savings estimates are provided for a 15% and 30% building leakage reduction in both a
single‐story and two‐story home.
Climate Zone
Single-Story, 15% Reduction
Single-Story, 30% Reduction
Two-Story, 15% Reduction
Two-Story, 30% Reduction
kWh Savings
Therm Savings
kWh Savings
Therm Savings
kWh Savings
Therm Savings
kWh Savings
Therm Savings
CZ02 7.2 13.5 14.6 27.0 10.4 26.5 21.3 52.9
CZ03 7.2 15.1 14.5 30.3 10.5 29.2 20.4 58.1
CZ04 7.5 13.1 15.1 26.2 8.2 25.4 17.6 50.7
CZ05 7.5 16.3 15.3 32.8 11.5 30.6 21.2 61.7
CZ08 5.4 8.8 11.4 17.3 3.2 17.7 5.9 35.3
CZ09 7.7 9.5 15.7 18.9 8.3 20.1 17.1 40.3
CZ10 9.2 10.0 17.3 19.8 10.3 20.7 20.2 41.5
CZ11 13.9 12.7 27.5 25.4 19.6 25.9 39.1 52.0
CZ12 10.8 13.3 21.2 26.5 14.0 27.2 30.4 54.4
CZ14 23.6 14.7 47.6 29.4 31.7 28.6 60.6 57.4
CZ15 33.9 8.0 68.6 16.0 65.5 15.9 131.8 31.8
CZ16 10.8 18.0 20.8 36.0 13.6 33.7 29.2 67.6
Section 12 Building Envelope – Residential
12‐12 Savings Estimation TRM ers
12.7 Energy Efficient Windows
Measure Summary Information
Measure status Active until July 1, 2019
Measure description Replacement of single-pane window with an energy efficient window
End use HVAC – residential
Project eligibility Window retrofit that is not part of a major remodel or otherwise required to meet 2013 T24 window code requirements
Savings type UES
Unit energy savings Savings vary by climate zone – see Energy Savings Table. Savings are per square foot of window area.
Measure cost For cost-effectiveness and reporting purposes, program administrators should use project-specific costs. Costs include windows, installation materials, and installation labor costs.
EUL 20 years1
Applicable baseline types
Natural replacement – preexisting conditions
Baseline description Single pane window with a U-factor of 1.19 and SHGC of 0.83
Efficient case description
Double pane window with a U-factor of 0.32 or lower and SHGC of 0.25 or lower.
Savings Calculation Annual energy savings formula
See Energy Savings Table. Savings estimates are based on Energy Pro (V6.7.0.4) building energy simulation models. See TRM 222 spreadsheet.
Peak demand reduction
See Energy Savings Table.
Key Parameters
N/A
Quality Assurance: Design, Installation, Commissioning, and Operation
Verify energy performance rating of replacement window and verify that the dwelling is a conditioned space.
Important Notes
N/A
1 DEER2014-EUL-table_update_2014-02-05
Building Envelope – Residential Section 12
Savings Estimation TRM 12‐13 ers
12.7.1 Energy Savings Table
Savings estimate are provided by climate and are normalized to square feet of window area.
Climate Zone kW/Sq Ft kWh/Sq Ft Therms/Sq
Ft CZ02 0.004 2.7 0.107
CZ03 0.005 0.5 0.013
CZ04 0.006 2.8 0.057
CZ05 0.006 0.6 -0.010
CZ08 0.006 3.3 0.020
CZ09 0.006 4.2 0.027
CZ10 0.006 5.0 0.043
CZ11 0.006 6.1 0.110
CZ12 0.005 4.6 0.113 CZ14 0.005 6.1 0.040
CZ15 0.006 10.3 0.017CZ16 0.003 2.4 0.190
12.8 Radiant Barriers
Measure Summary Information
Measure status Active until July 1, 2019
Measure description Installation of radiant barriers in an existing attic space
End use HVAC – residential
Project eligibility Installation of a radiant barrier in an existing residential dwelling without a radiant barrier, where the installation is not subject to 2016 T24 code requirements. Radiant barriers installed to meet code-required insulation levels are not eligible.
Savings type UES
Unit energy savings See Energy Savings Table. Savings vary by climate zone and are normalized to square feet of installed radiant barrier.
Measure cost For cost-effectiveness and reporting purposes, program administrators should use project-specific costs. Costs include radiant barrier material and installation labor costs.
EUL 15 years1
Applicable baseline types
Natural replacement – preexisting conditions
Baseline description Roof over residential dwelling (vented attic) with no radiant barrier
Efficient case description
Roof with radiant barrier
Savings Calculation Annual energy savings formula
See Energy Savings Table. Savings estimates are based on Energy Pro (V6.7.0.4) building energy simulation models. See TRM 223 spreadsheet.
Peak demand reduction
See Energy Savings Table.
Key Parameters
N/A
Section 12 Building Envelope – Residential
12‐14 Savings Estimation TRM ers
Quality Assurance: Design, Installation, Commissioning, and Operation
Verify that radiant barrier was installed per manufacturer recommendations and industry-standard guidelines.
Important Notes
N/A 1 DEER2014-EUL-table_update_2014-02-05
12.8.1 Energy Savings Table
Savings are provided by climate zone and are normalized to square foot of installed radiant
barrier.
Climate Zone kWh/Sq Ft kW/Sq Ft Therms/Sq Ft
CZ02 0.123 0.0003 0.249
CZ03 0.026 0.0001 0.310
CZ04 0.129 0.0003 0.188
CZ05 0.031 0.0002 0.298
CZ08 0.154 0.0004 0.056
CZ09 0.206 0.0003 0.024
CZ10 0.233 0.0004 0.011
CZ11 0.292 0.0004 0.068
CZ12 0.211 0.0004 0.153
CZ14 0.294 0.0004 0.049
CZ15 0.495 0.0004 -0.327
CZ16 0.115 0.0003 0.525
All Other – Residential 13
Savings Estimation TRM 13‐1 ers
13. ALL OTHER – RESIDENTIAL
13.1 Smart Power Strip
Measure Summary Information
Measure status Active until July 1, 2019
Measure description Replacement of standard electric power strips with smart strips in home offices and home entertainment centers Smart power strips have one outlet that controls the power supplied to a number of other related devices attached to the same power strip. Smart power strips can automatically eliminate the electrical load of peripheral devices (computer printer, scanner, DVD player, etc.) when an electronic control device (personal computer or television) is in standby or off mode.
End use Plug load – consumer electronics
Project eligibility Applicable to smart power strips installed in both single-family and multifamily residential buildings
Savings type UES
Unit energy savings 24 kWh per smart strip installed
Measure cost $21 per smart strip
EUL 8 years1
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – preexisting conditions
Baseline description Preexisting standard power strips without any control mechanism and which are controlled with a single manual switch
Efficient case description A smart power strip with the capability to sense the drop in current that occurs when the control device enters a low-power mode. A current-sensing transformer attached to an outlet on the plug strip monitors the current draw of the designated device. When the current draw of this device drops below a certain threshold, power is disconnected from the controlled outlets on the plug strip.
Savings Calculation Annual energy savings 1. Calculations are based on the SCE smart power strip work paper2
2. Calculation methodology is based on a 2008 California home electronics survey3 which provides installation percentage of a variety of common home theatre equipment. This information was combined with data from a NYSERDA study4 that detailed total standby loads of these various pieces of equipment as well as average standby time percentages.
Peak demand reduction No peak demand reduction for this measure.
Key Parameters N/A
Section 13 All Other – Residential
13‐2 Savings Estimation TRM ers
Quality Assurance: Design, Installation, Commissioning, and Operation Ensure that the master electronic device, TV, or computer, is connected to the appropriate master outlet on the power strip.
Important Notes
N/A 1DEER_EUL_Summary_10-1-2008.xls, assumed equivalent to occupancy sensor control. 2 SCE work paper SCE13CS002, Revised May 8, 2012 3 California Energy Commission’s Public Interest Energy Research Program Technical Brief. “Energy Use of Household Electronics: Taming the Wild Growth,” September 2008. 4 New York State Energy Research & Development Authority (NYSERDA). Advanced Power Strip Research Report. August 2011
13.2 Variable Speed Residential Pool Pump
Measure Summary Information
Measure status Active until July 1, 2019
Measure description Replace existing pool pump with a variable speed pool pump and variable speed pump control.
End use Other – residential pool pump.
Project eligibility Single-family residential pool pumps greater or equal to 1 hp.
Savings type UES
Unit energy savings 674 kWh ‒ Natural replacement 1,711 kWh ‒ Early retirement period
Measure cost $455 per VSD pump1
EUL 10 years2 RUL: 3.3 years or EUL minus preexisting pump age
Baseline and Efficient Case Conditions Applicable baseline types 1. Natural replacement – code
2. Dual baseline ‒ early retirement
Baseline description 1. Natural replacement: two speed pump, as required by Title 20 Appliance Standards for pumps 1 hp and larger
2. Early retirement: single speed pump
Efficient case description VSD pump with programmable VSD control
Savings Calculation Annual energy savings See TRM214 variable speed residential pool pump spreadsheet.
Peak demand reduction No peak demand reduction for this measure
Key Parameters Average pump size Energy factors Average pool size % time at low speed
1.73 kW 2.06 – 4.68 gallons/watt-hour 20,000 gallons 83%
Quality Assurance: Design, Installation, Commissioning, and Operation
Pool pump should be properly sized and VSD controls should be programmed for: default operation at lowest optimal speed (less than 50% of full speed), pump speed ramp up as filter pressure increases, and minimal use at high speed pump operation.
Important Notes N/A
1SCE work paper, SCE13WP001, Revision 1, Aug. 2012 2DEER_EUL_Summary_10-1-2008.xls
Gas Measures ‒Nonresidential 14
Savings Estimation TRM 14‐1 ers
14. GAS MEASURES - NONRESIDENTIAL
14.1 Tank Insulation
Measure Summary Information
Measure status Active until July 1, 2019
Measure description Installation of insulation of either 1” thick or 2” thick on an existing tank containing hot liquid between 120°F–170°F or 170°F–200°F.
End use Heating – hot fluid for process uses
Project eligibility Existing tanks that heat or store hot liquid. Tanks that must be insulated to meet building codes or occupancy safety codes are not eligible. Tanks with existing insulation are also not eligible. Cellular glass insulation or foam insulation are allowed.
Savings type UES
Unit energy savings See Energy Savings Table. Range of savings is 13.4–25.2 therms per sq ft per year, depending on the liquid temperature and insulation thickness.
Incremental measure cost See Measure Cost Table. Materials and labor for 1” thick insulation is $8 per sq ft and 2” thick insulation is $9 per sq ft.
EUL 15 years1
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – preexisting conditions
Baseline description Hot liquid heating or storage tanks with no insulation
Efficient case description Installation of insulation of either 1” or 2” thick
Savings Calculation Annual energy savings formula /
100,000
Peak demand reduction NA
Definitions t=
Qp= Qi= Eb=
100,000=
Annual operating hours assumed to be 8,760 hours per year Heat loss from uninsulated pipe in Btu/h per sq ft of tank surface area Heat loss from insulated pipe in Btu/h per sq ft of tank surface area Efficiency of the boiler, assumed to be 82.5% Number of Btu per therm
Key Parameters Liquid temperature For liquids between 120°F – 170°F, 145°F is used for the liquid temperature. For
liquids between 170°F – 200°F, 185°F is used for the liquid temperature.
Quality Assurance: Design, Installation, Commissioning, and Operation N/A Important Notes N/A
1PGECOPRO103 R4 Tank Insulation, June 2012
Section 14 Gas Measures – Nonresidential
14‐2 Savings Estimation TRM ers
14.1.1 Energy Savings Table
This table provides the ranges of savings values for1” and 2” insulation for tanks that are
heating or storing liquid at temperatures between 120°F–170°F and 170°F–200°F.
Measure Name
Gas Savings1
(Therms per sq ft of insulation)
1" tank insulation, 120°F – 170°F liquid 13.4
1" tank insulation, 170°F – 200°F liquid 23.9
2" tank insulation, 120°F – 120°F liquid 14.2
2" tank insulation, 170°F – 200°F liquid 25.2 1PGECOPRO103 R4 Tank Insulation, June 2012
14.1.2 Measure Cost Table
This table provides the incremental measure cost.
Measure Name Cost1
1" tank insulation, 120°F – 170°F liquid $8
1" tank insulation, 170°F – 200°F liquid $8
2" tank insulation, 120°F – 120°F liquid $9
2" tank insulation, 170°F – 200°F liquid $9 1PGECOPRO103 R4 Tank Insulation, June 2012
14.2 Hot Water and Steam Pipe Insulation
Measure Summary Information
Measure status Active, until July 1, 2019
Measure description Installation of insulation at least 1” thick on existing hot water or low pressure (<15 psig) steam pipe.
End use Heating – steam and hot water for process, HVAC, and domestic uses.
Project eligibility Existing hot water or steam piping is uninsulated. Piping that must be insulated to meet building codes or occupancy safety codes are not eligible. For hot water systems, rigid polyurethane, rigid polystyrene, and rigid foam rubber insulation are allowed. For low pressure steam systems, mineral fiber, cellular glass, and calcium silicate are allowed.
Savings type UES
Unit energy savings See Energy Savings Table. Range of savings is 1 to 15 therms per linear foot per year depending on boiler type, pipe diameter, and building type.
Incremental measure cost See Measure Cost Table. Range of savings is $6 to $13 per linear foot based on boiler type.
EUL 15 years1
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – preexisting conditions
Baseline description Hot water or steam piping system with no insulation
Gas Measures – Nonresidential Section 14
Savings Estimation TRM 14‐3 ers
Efficient case description Installation of insulation of at least 1” thick
Savings Calculation Annual energy savings formula
From PG&E work paper:
/100,000
Peak demand reduction NA
Definitions t=
Qp= Qi= Eb=
100,000=
Annual operating hours Heat loss from uninsulated pipe in Btu/h per foot of pipe Heat loss from insulated pipe in Btu/h per foot of pipe Efficiency of the boiler, assumed to be 83% Number of Btu per therm
Key Parameters Annual operating hours Annual operating hours were modeled for three building types; small commercial,
large commercial and industrial. Small commercial facilities operate 7.5 to 9 hours per day, 6 days per week year-round for an average of 2,425 hours per year. This number is based on a survey of dry cleaners performed in southern California. Large commercial facilities such as hotels, schools, office buildings are assumed to operate 4,380 hours per year. Industrial facilities are assumed to operate 24 hours per day, 7 days per week for 46 weeks per year for a total of 7,752 hours per year.
Pipe parameters Hot water and steam pipes were assumed to be Schedule 40 steel. For pipes with an inside diameter (I.D.) of ≤1”, an I.D. of 0.75” was used. For pipes with an I.D. >1”, an I.D. of 1.7” was used.
Fluid temperature Hot water is assumed to be 150°F. Low pressure steam is assumed to be 241°F.
Quality Assurance: Design, Installation, Commissioning, and Operation N/A
Important Notes N/A
1PG&E work paper PGECOHVC104 Pipe Insulation R5, June 2012
14.2.1 Energy Savings Table
The following table provides the ranges of savings values for how water and low‐pressure
steam in pipes with diameter of ≤1” and >1” in small commercial, large commercial, and
industrial facilities.
Section 14 Gas Measures – Nonresidential
14‐4 Savings Estimation TRM ers
Measure Name Building Type
Gas Savings1
(Therms per linear foot of pipe)
Hot water pipe insulation, ≤1" diameter pipe
Small retail 1.2
Hot water pipe insulation, ≤1" diameter pipe
Large office 2.2
Hot water pipe insulation, ≤1" diameter pipe
Light industrial mfg. 3.7
Hot water pipe insulation, >1" diameter pipe
Small retail 2.2
Hot water pipe insulation, >1" diameter pipe
Large office 4.0
Hot water pipe insulation, >1" diameter pipe
Light industrial mfg. 7.2
Low pressure steam pipe insulation, ≤1" diameter pipe
Small retail 2.6
Low pressure steam pipe insulation, ≤1" diameter pipe
Large office 4.7
Low pressure steam pipe insulation, ≤1" diameter pipe
Light industrial mfg. 8.2
Low pressure steam pipe insulation, >1" diameter pipe
Small retail 4.7
Low pressure steam pipe insulation, >1" diameter pipe
Large office 8.6
Low pressure steam pipe insulation, >1" diameter pipe
Light industrial mfg. 15.1
1PG&E work paper PGECOHVC104 Pipe Insulation R5, June 2012
14.2.2 Measure Cost Table
This table provides the incremental measure cost for hot water and steam pipes with an inside
diameter of ≤1” and >1”. The cost is listed in dollars per linear foot of pipe.
Measure Name Cost1
Hot water ≤1" pipe $6
Hot water >1" pipe $9
Low pressure steam ≤1" pipe $11
Low pressure steam >1" pipe $13 1PG&E work paper PGECOHVC104 Pipe Insulation R5, June 2012
Gas Measures – Nonresidential Section 14
Savings Estimation TRM 14‐5 ers
14.3 High Efficiency Commercial Gas Hot Water Heaters
Measure Summary Information
Measure status Active, until July 1, 2019
Measure description Installation of a new high efficiency hot water heater in a commercial application
End use Domestic hot water
Project eligibility Applicable to both retrofit and new construction. See Unit Efficiency Ratings Table for minimum efficiency requirements.
Savings type UES
Unit energy savings 1. See Energy Savings Table – varies based on unit type and size. 2. All savings are listed as therms per MBtu/h of capacity.
Incremental measure cost 1. See Energy Savings Table – varies based on unit type and size. 2. All costs are listed as total costs.
EUL 1. Instantaneous water heaters – 20 years1
2. Storage tank water heaters – 15 years1
Baseline and Efficient Case Conditions Applicable baseline types 1. Natural replacement – code
2. Dual baseline – early retirement
Baseline description Small storage gas hot water heater or instantaneous hot water heater meeting the minimum efficiency allowed by the April 2015 Federal regulations. For early replacement, the baseline is a vintage -weighted average of typical unit efficiencies.
Efficient case description 1. Instantaneous water heaters with an Energy Factor (EF) of 0.82 and 0.92 2. Gas storage water heaters ranging in size from 30 to 75 gallons with EF
ranging from 0.65 to 0.82
Savings Calculation Annual energy savings formula
From 2015 DEER update - see TRM304 DHW Spreadsheet for source data
Peak demand reduction N/A for gas measures
Definitions EF =
Energy factor – total annual energy efficiency of a unit including recovery efficiency, standby losses and cycling losses.
Key Parameters
Building type All commercial buildings.
Quality Assurance: Design, Installation, Commissioning, and Operation
Determine if new unit will be replacing a functional unit or a failed unit. Verify that new unit meets or exceeds the Energy Factor listed for each measure. Verify that new unit is properly installed and commissioned.
Important Notes Savings are revised to account for the update to federal regulations that went into effect in April 2015.
1DEER2014-EUL-table-update_2014-02-05.xls
14.3.1 Energy Savings Table
This table provides the savings by unit size and type.
Section 14 Gas Measures – Nonresidential
14‐6 Savings Estimation TRM ers
Unit Size and Type
Early Retirement (Therms per unit
heater)
Natural Replacement (Therms per unit heater)
Hot water heater 30-gallon storage, EF 0.72 122 48
Hot water heater 40-gallon storage, EF 0.65 35 14
Hot water heater 40-gallon storage, EF 0.82 252 227
Hot water heater 50-gallon storage, EF 0.82 294 277
Hot water heater 60-gallon storage, EF 0.78 229 89
Hot water heater 60-gallon storage, EF 0.80 266 125
Hot water heater 60-gallon storage, EF 0.82 270 129
Hot water heater 75-gallon storage, EF 0.78 470 49
Hot water heater 75-gallon storage, EF 0.80 519 93
Hot water heater 75-gallon storage, EF 0.82 567 134
Hot water heater instantaneous, EF 0.82, replacing 75-gallon HWH 398 -154
Hot water heater instantaneous, EF 0.92, replacing 75-gallon HWH 772 153
Hot water heater instantaneous, EF 0.82, replacing 40-gallon HWH 391 334
Hot water heater instantaneous, EF 0.92, replacing 40-gallon HWH 764 701
Hot water heater instantaneous, EF 0.82 65 65
Hot water heater instantaneous, EF 0.92 326 326
14.3.1 Unit Efficiency Ratings
The following table shows the efficiency ratings used in the DEER analysis.
Water Heater Type Efficiency Tiers
Fuel Gallons Min. Code Tier 1 Tier 2 Tier 3
Gas 30 0.630 EF 0.65 EF 0.70 EF 0.72 EF
Gas 40 0.615 EF 0.65 EF 0.70 EF 0.82 EF
Gas 50 0.600 EF 0.67 EF 0.70 EF 0.82 EF
Gas 60 0.754 EF 0.78 EF 0.80 EF 0.82 EF
Gas 75 0.743 EF 0.78 EF 0.80 EF 0.82 EF
Gas Tankless N/A 0.82 EF 0.92 EF N/A
14.3.2 Measure Cost Table
This table provides the incremental measure cost by heater type. Note that incremental costs
reflect older data and should be updated. Program administrators should collect equipment
costs and request equipment cost comparisons to standard efficiency units.
Unit Size and Type Incremental Cost
($/MBtu/h) Full Replacement Costs
($/MBtu/h)
Hot water heater, instantaneous $77 $122
Hot water heater, storage $209 $330
Gas Measures – Nonresidential Section 14
Savings Estimation TRM 14‐7 ers
14.4 Ozone Laundry
Measure Summary Information Measure status Active, until July 1, 2019
Measure description Installation of an ozone generator on an existing or new nonresidential laundry facility. The addition of the ozone generator eliminates the need for bleach or detergents that require hot water during the washing process. The reduction in hot water usage results in less thermal load on the site’s boiler and reduces total site gas consumption.
End use Heating – commercial laundry
Project eligibility Applicable to both retrofit and new construction in the following facility types 1. Hotels with less than 250 rooms 2. Fitness or recreational sports centers
Savings type UES
Unit energy savings 39.3 therms per lb of laundry capacity1
Incremental measure cost $75 per lb of laundry capacity1
EUL 10 years1
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – preexisting conditions
Baseline description Commercial laundry systems based on bleach and detergent cleaning requiring hot water supplied by a natural gas boiler. Natural gas boiler is assumed to operate at 80% efficiency. Laundry is assumed to be washed using hot water.
Efficient case description Ozone generator which removes the need for the majority of hot water in the washing process. Hot water usage is assumed to be reduced by 86%.
Savings Calculation Annual energy savings formula
Savings estimates from IOU work paper1 based on the following inputs: 1. City water temperature = 60ºF 2. Hot water washing temperature = 135ºF 3. Boiler efficiency = 80% 4. Hot water reduction due to ozone system = 86% 5. Water heating energy = 0.00781 therms/gallon 6. Washer utilization factor = 4380 lb laundry/unit 7. Hot water usage factor = 1.34 gallons
1
Peak demand reduction N/A
Key Parameters Washer utilization factor Average total lb of laundry cleaned per unit (based on survey results)
Quality Assurance: Design, Installation, Commissioning, and Operation 1. Verify that existing hot water is supplied by a natural gas boiler.
2. Ozone laundry system must transfer ozone into the water through venture injection or bubble diffusion.
Important Notes N/A
1PGE work paper PGECOAPP123 Ozone Laundry Nonresidential Revision #3 – 6/21/12
Section 14 Gas Measures – Nonresidential
14‐8 Savings Estimation TRM ers
14.5 Steam Traps
Measure Summary Information Measure status Active, until July 1, 2019
Measure description Replace a failed steam trap with a new steam trap
End use Heating – steam boiler, steam distribution system.
Project eligibility Existing system retrofit. Applies to steam traps of any size.
Savings type UES, semi-custom measure.
Unit energy savings 119 therms per trap, or custom-calculated using the TRM402 steam trap savings calculator.
Incremental measure cost $233 per trap1
EUL 6 years1
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – preexisting conditions
Baseline description
Efficient case description A new or rebuilt (new steam capsule) steam trap. The new steam trap can be thermostatic, mechanical, thermodynamic, or fixed orifice.
Savings Calculation Annual energy savings formula
Savings estimates obtained from SCG work paper1, and is based on the following assumptions: 1. 25% of the steam traps are line pressure traps and 75% are load (reduced
pressure) traps. 2. Traps leak steam less often than system operates. 3. A number of traps will fail in the closed position (therefore no energy loss). 4. An 81% factor is used to account for traps failed in the closed position. 5. Heat exchanger load factor reduces stream trap losses. 6. The combined load factor/pressure factor is 21.4%.
The TRM402 steam trap savings calculator can be used to determine more accurate, project-specific savings estimates. The calculator is designed to estimate savings for both replacement and repair of steam straps. Calculations are based on site steam system characteristics and steam trap size and type.
Peak demand reduction N/A
Definitions N/A
Key Parameters N/A
Quality Assurance: Design, Installation, Commissioning, and Operation 1. Obtain a copy of any ultrasonic testing and mapping of failed steam traps, including information on steam trap
pressure, steam trap type, location, and load/end use served. 2. Verify the quantity of steam traps failed in the closed position. 3. Verify quantity and type of new steam traps installed.
Important Notes N/A
1SCG work paper SCWP100310A, Revision 9, Deemed Program for Commercial Steam Traps, Aug. 2012
Gas Measures ‒Residential 15
Savings Estimation TRM 15‐1 ers
15. GAS MEASURES – RESIDENTIAL
15.1 High Efficiency Residential Furnace & Boiler
Measure Summary Information
Measure status Active until July 1, 2019
Measure description Installation of a new high efficiency furnaces or boilers (85 – 96 AFUE) in either single- or multifamily homes. Not applicable for central boilers serving a multifamily dwelling.
End use HVAC – CZ04
Project eligibility Furnaces must meet either CEE Tier 2 (92 AFUE) or Tier 3 (94 AFUE) requirements. Hot water boilers must meet ENERGY STAR requirements (85 AFUE).
Savings type UES
Unit energy savings 1. See Energy Savings Table – varies based on unit type and size as well as building type1.
2. All savings are listed as therms per kBtu/h of heating capacity (kBtu/h output).
Incremental measure cost 1. See Energy Savings Table – varies based on unit type and size as well as building type.
2. All costs2 are per kBtu/h of heating capacity.
EUL 20 years3
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – code
Baseline description 1. The baselines are adjusted from those listed in the DEER database. Baseline furnace efficiency is determined by federal standards of 80% AFUE for units of less than 225,000 Btu/h.
2. Baseline efficiency for boilers is 82% AFUE, per federal regulations. 3. A summary of the baseline unit efficiency assumptions has been listed in the
Savings Adjustment Table.
Efficient case description 1. Furnaces with AFUE (annual fuel utilization efficiency) between 92% to 96% 2. Boiler AFUE efficiency of at least 85%
Savings Calculation Annual energy savings formula
1. See TRM305 residential furnace spreadsheet.
2. Savings for this measure were derived from figures contained within the 2011 DEER database. The DEER database contains savings for six building vintage categories (ranges of buildings by age) for every measure and building use type. Only multifamily and single-family types were used in the analysis. For RUL values, the TRM spreadsheet combines the building vintage weights by total installed square footage (California building stock data from IOU work paper2) to produce a single weighted savings value.
3. Specific DEER savings figures were not available for the boiler measure. The savings calculations assume that the heating load for the furnace and the boiler are the same for this measure. Savings are determined using heating loads and efficiency improvements from baseline to efficient case conditions.
Peak demand reduction N/A for gas measures
Section 15 Gas Measures – Residential
15‐2 Savings Estimation TRM ers
Definitions Vintage = AFUE =
Building age as indicated in DEER savings database Annual fuel utilization efficiency
Key Parameters Building type Determines the average hours of operation and internal building loads.
HVAC unit size Total full-load heating capacity in kBtu/h. Units are assumed to be properly sized.
Quality Assurance: Design, Installation, Commissioning, and Operation 1. Determine if new unit will be replacing a functional unit or a failed unit. 2. Verify that new unit meets minimum efficiency requirements. 3. Verify that new unit is properly installed and commissioned.
Important Notes Unit savings are for CZ04.
1 PGECOHVC145 R0 execsumm.xls, PGE, June 16, 2012 2PGECOHVC145 R0 execsumm.xls, PGE, November 15, 2012; Boiler pricing based on Internet research. Crown Boiler, 82% and 85% AFUE, 91,000 Btu/h 3DEER_EUL_Summary_10-1-2008.xls
15.1.1 Energy Savings Table
This table provides the ranges of savings values for each furnace type.
Unit Size and Type Energy Savings Therms
per kBtu/h Output
Residential furnace – 90% AFUE – single family 0.386
Residential furnace – 90% AFUE – multifamily 0.329
Residential furnace – 92% AFUE – single family 0.477
Residential furnace – 92% AFUE – multifamily 0.406
Residential furnace – 94% AFUE – single family 0.568
Residential furnace – 94% AFUE – multifamily 0.483
Residential furnace – 96% AFUE – single family 0.658
Residential furnace – 96% AFUE – multifamily 0.560
Residential hot water boiler – 85% AFUE – single family 0.069
Residential hot water boiler – 85% AFUE – multifamily 0.059
15.1.2 Unit Efficiency Ratings
This table shows the efficiency ratings used in the DEER analysis, the minimum federal baseline
efficiencies, and measure furnace efficiencies.
Unit Size and Type DEER Baseline ‒ (AFUE)Federal Baseline
– (AFUE) TRM Replacement Unit
Efficiency (AFUE)
Residential furnace – 92% AFUE 78 80 92
Residential furnace – 94% AFUE 78 80 94
Residential furnace – 96% AFUE 78 80 96
Residential hot water boiler – 80% AFUE
N/A 82 85
Gas Measures – Residential Section 15
Savings Estimation TRM 15‐3 ers
15.1.3 Measure Cost Table
This table provides the incremental measure cost.
Unit Size and Type Measure Cost (per
kBtu/h output)
Residential furnace – 90% AFUE – single family $3.44
Residential furnace – 90% AFUE – multifamily $3.44
Residential furnace – 92% AFUE – single family $5.11
Residential furnace – 92% AFUE – multifamily $5.11
Residential furnace – 94% AFUE – single family $6.91
Residential furnace – 94% AFUE – multifamily $6.91
Residential furnace – 96% AFUE – single family $8.85
Residential furnace – 96% AFUE – multifamily $8.85
Residential hot water boiler – 85% AFUE – single family $6.59
Residential hot water boiler – 85% AFUE – multifamily $6.59
15.2 Domestic Hot Water Piping Insulation – Multifamily Recirculating System
Measure Summary Information
Measure status Active until July 1, 2019
Measure description Installation of insulation at least of ½ – ¾ inches thick on existing hot water pipes
End use DHW
Project eligibility Existing hot water pipes are uninsulated in multifamily central hot water systems withrecirculation pumps.
Savings type UES
Unit energy savings 0.54 therms per year per linear foot of pipe1
Incremental measure cost $1 per linear foot1
EUL 11 years1
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – preexisting conditions
Baseline description Hot water pipe with no insulation
Efficient case description Installation of insulation of ½ – ¾ inches thick
Savings Calculation Annual energy savings formula
IOU work paper1. The energy savings were calculated using the NAIMA’s 3E Plus V4.0 software.
Peak demand reduction N/A
Key Parameters Annual EFLH 2,641 hours per year
Pipe parameters The pipe is assumed to be copper with a 1-inch pipe diameter
Fluid temperature Hot water is assumed to be 120°F
Insulation parameters Polyethylene foam insulation of ½ inch thickness or greater
Quality Assurance: Design, Installation, Commissioning, and Operation
N/A Important Notes
N/A 1SDG&E work paper WPSDGEREWH1203 Rev0 MF Multi-Family Pipe Wrap Central Recirculation Systems, June 2012
Section 15 Gas Measures – Residential
15‐4 Savings Estimation TRM ers
15.3 Domestic Hot Water Heater
Measure Summary Information
Measure status Active until July 1, 2019
Measure description Installation of a new high efficiency domestic hot water (DHW) heater in a residential application
End use DHW
Project eligibility 1. Gas storage water heaters must meet CEE Tier 1 or Tier 2 specifications and be ENERGY STAR certified.
2. Instantaneous gas-fired water heaters must meet or exceed measure efficiency requirements.
Savings type UES
Unit energy savings See Energy Savings Table
Incremental measure cost $931
EUL 15 years2
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – code
Baseline description Minimum hot water efficiency as required by the 2015 California Appliance Efficiency Regulations (Title 20)
Efficient case description 1. CEE Tier I: 0.67 EF 2. CEE Tier 2: 0.80 EF 3. Instantaneous hot water heater: EF ≥ 0.90 and EF ≥ 0.95
Savings Calculation Annual energy savings formula
1. See TRM209 residential hot water heater spreadsheet. 2. Savings for this measure were derived using median daily water usage
statistics from LBNL studies3 and DOE test procedures.
Peak demand reduction N/A
Definitions EF =
Energy factor – total annual energy efficiency of a unit including recovery efficiency, standby losses, and cycling losses.
Key Parameters Median daily water use Average hot water usage for single-family homes
Quality Assurance: Design, Installation, Commissioning, and Operation Verify that new unit meets minimum efficiency requirements.
Important Notes N/A
1 IOU workpaper, PGECODHW104 R3 Gas Storage Wtr Htr.docx, 2012 2DEER_EUL_Summary_10-1-2008.xls 3Hot Water Draw Patterns in Single-Family Houses: Findings from Field Studies, LBNL, June 2012
Gas Measures – Residential Section 15
Savings Estimation TRM 15‐5 ers
15.3.1 Energy Savings Table
Unit Size and Type Energy Savings, Therms per Year
Gas hot water storage, 29 gallons, CEE Tier I, 0.67 EF 11
Gas hot water storage, 38 gallons, CEE Tier I, 0.67 EF 15
Gas hot water storage, 40 gallons, CEE Tier I, 0.67 EF 16
Gas hot water storage, 48 gallons, CEE Tier I, 0.67 EF 20
Gas hot water storage, 50 gallons, CEE Tier I, 0.67 EF 21
Gas hot water storage, 29 gallons, CEE Tier II, 0.80 EF 39
Gas hot water storage, 38 gallons, CEE Tier II, 0.80 EF 43
Gas hot water storage, 40 gallons, CEE Tier II, 0.80 EF 44
Gas hot water storage, 48 gallons, CEE Tier II, 0.80 EF 48
Gas hot water storage, 50 gallons, CEE Tier II, 0.80 EF 49
Instantaneous hot water heater, natural gas, 0.90 EF 13
Instantaneous hot water heater, natural gas, 0.95 EF 20
15.4 Low-Flow Showerheads
Measure Summary Information
Measure status Inactive
Measure description Installation of a low-flow showerhead which reduces total water flow by introducing air into the stream. This reduction in flow reduces the load on a home’s hot water heating system.
End use DHW
Project eligibility Low-flow showerhead that reduces water flow below state code requirements or below preexisting conditions
Savings type UES
Unit energy savings There are no updated savings estimates available at this time.
For existing condition baseline projects, the DEER energy savings data for low-flow showerheads ranging from 1.5 gpm to 2.0 gpm are provided with the TRM spreadsheets.
Incremental measure cost N/A
EUL DEER 2011 – 10 years1
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – code, Natural replacement - preexisting conditions.
Baseline description Showerhead available for purchase in the state of California, or preexisting showerhead
Efficient case description Showerhead with reduced flow rate
Savings Calculation Annual energy savings formula
N/A
Peak demand reduction N/A
Definitions N/A
Key Parameters
Section 15 Gas Measures – Residential
15‐6 Savings Estimation TRM ers
N/A
Quality Assurance: Design, Installation, Commissioning, and Operation N/A
Important Notes Code update: As of August 2015, the California Appliance Standards (Title 20) limit showerheads to a maximum flow of 2 gpm. On July 1, 2018, the limit will be lowered to 1.8 gpm.
1 DEER_EUL_Summary_10-1-2008.xls
15.5 Faucet Aerators
Measure Summary Information
Measure status Active until July 1, 2019
Measure description Installation of faucet flow aerator that reduces total water flow by introducing air into the stream. This reduction in flow reduces the load on a home’s hot water heating system.
End use DHW
Project eligibility Installation of aerators that reduces water flow below state code requirements or preexisting conditions
Savings type UES
Unit energy savings There are no updated savings estimates available at this time. Current saving estimates in DEER are pre-code requirement changes as of January 1, 2016. For existing conditions baseline projects, the DEER energy savings data for low-flow aerators are provided with the TRM spreadsheets
Incremental measure cost Total measure cost – $13.241
EUL DEER 2011 – 10 years2
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – code, Natural replacement – preexisting conditions
Baseline description Aerator available for purchase in the state of California, or preexisting faucet aerator
Efficient case description Faucet aerators with reduced water flow
Savings Calculation Annual energy savings formula
N/A
Peak demand reduction N/A Definitions N/A
Key Parameters N/A
Quality Assurance: Design, Installation, Commissioning, and Operation N/A
Important Notes Code update: As of January 1, 2016, the California Appliance Efficiency Regulations (Title 20) limit faucet and aerator flow rates as follows: Lavatory faucets and aerators – 1.2 gpm at 60 psi Kitchen faucets and aerators – 1.8 gpm with optional temporary flow of 2.2 gpm at 60 psi Public lavatory faucets – 0.5 gpm at 60 psi
1 PGE3PDHW116 Faucet Aerators Revision 0 – August 29, 2012 2DEER_EUL_Summary_10-1-2008.xls
Custom Measure Protocol 16
Savings Estimation TRM 16‐1 ers
16. CUSTOM MEASURE PROTOCOL
This section describes how program administrators can reliably estimate and document energy
savings for custom measures.
A custom measure is any measure not defined by this manual as either a unit energy savings
measure or a semi‐custom measure. In more general terms, a custom measure is defined as an
energy‐related project, action, equipment change, or system improvements that reduce energy
consumption.
16.1 Baseline Use in Estimating Energy Savings
In order to estimate energy savings, energy usage must be determined for both a baseline and
an efficient‐case condition. The baseline condition is an estimate of the future energy use that
would have occurred in the absence of the installed measure. It is constrained by the available
alternatives to installing the measure. Alternatives are often project‐specific and may include
“do nothing” or be limited by minimum code requirements or product availability. In practice,
the pre‐retrofit energy use is adjusted3 to account for the alternative constraints and normalized
for comparison to the efficient‐case condition. The efficient‐case condition is the energy
consumption after the measure has been implemented. Energy savings are the difference
between the baseline and efficient‐case energy use.
3 Often referred to as the adjusted baseline. In the context presented in this manual, adjusted baseline and
baseline have the same meaning.
Section 16 Custom Measure Protocol
16‐2 Savings Estimation TRM ers
Figure 16-1 Baseline and Efficient Case Energy Use
16.1.1 Baseline Examples
The following are examples of how pre‐retrofit conditions are adjusted to determine the
baseline energy use:
Energy code baseline adjustment – The lighting fixtures in a warehouse are to be completely
replaced with new energy efficient high‐bay fixtures. Energy code requires fixture replacements
to meet current code lighting power densities. Therefore, the baseline energy use is based on the
existing fixtures or on the energy code requirements, whichever uses less energy.
Federal regulations baseline adjustment – Lighting fixtures with T12 lamps will be retrofitted
with high performance T8 lamps and new ballasts. Recent federal regulations have ceased the
manufacturing of standard T12 lamps, such as the ones in the fixtures to be retrofitted. If the
existing stock of T12 replacement lamps has been depleted, then T12 lamps are not a viable
option. Therefore, the baseline energy use is based on a fixture lamp that meets federal
regulations. The lamp choices would be either first‐generation T8 lamps or code‐compliant T12
lamps (high‐efficacy T12 lamps made with rare‐earth elements that meet federal regulations).
Production rate baseline adjustment – An electric boiler at a manufacturing plant will be
replaced with a new, energy efficient boiler with heat recovery. The existing boiler energy use is
driven by the amount of product produced at the plant, which varies based on market demand.
The baseline energy use is based on the existing boiler energy use per unit of product produced,
which allows the projected baseline energy use to be compared to the efficient‐case energy use.
Current practice baseline adjustment – A plant is expanding and needs to replace a heat
exchanger to meet its new capacity requirements. The existing two‐stage heat exchanger is
considered obsolete. The least‐efficient heat exchanger available for purchase is a four‐stage
Custom Measure Protocol Section 16
Savings Estimation TRM 16‐3 ers
heat exchanger. Therefore, the baseline energy use is based on the use of a four‐stage heat
exchanger to meet the expanded capacity requirements.
16.1.2 Dual Baseline
A dual baseline is used to properly assess a measure’s cost‐effectiveness when more than one
baseline is applicable over the life of the measure. In this scenario, the baseline energy use for
the first baseline period may be the preexisting conditions and is limited to the remaining useful
life (RUL) of the preexisting equipment. The second baseline energy use is based on code or
current practice, and its period starts after the RUL period ends and continues up to the
effective useful life (EUL) of the measure. The energy savings benefit of the measure (used in
cost‐effectiveness tests) is based on the sum of the annual savings over the life of the measure.
Note that annual energy savings in this context is not the same as first‐year savings, which may
be used for tracking program energy savings goals.
For example, consider that a packaged AC unit is replaced with a more energy‐efficient unit.
The existing AC unit is 8 years old at the time of replacement, and its EUL is 15 years. The first
baseline energy use is based on the existing AC unit’s efficiency and the calculated annual
energy savings for this baseline is appropriate for the first 7 years (EUL minus the age of the
unit) of lifecycle energy savings. The second baseline energy use is based on the current energy
code efficiency requirements, and the calculated energy savings for the second baseline is
appropriate for the last 8 years of life cycle energy savings.
Figure 16-2 Dual Baseline Example
16.2 Energy Savings Estimate Approach
Custom measure energy savings can be estimated by using one of the three following
approaches:
1. Modified unit energy savings – The program administrator uses the analysis methodology
provided for a UES (or semi‐custom) measure and adjusts project‐specific parameters that
Section 16 Custom Measure Protocol
16‐4 Savings Estimation TRM ers
differ from those specified for the measure. This is often the simplest approach, because the
savings estimate methodology, assumptions, and key operating parameters are already
documented. Only the project‐specific changes need to be documented.
2. Unit energy savings from other credible sources – Credible sources of reliable savings estimate are those documented and vetted through peer engineering review or regulatory
process. Examples of credible sources include: California DEER database, CPUC‐
approved IOU work papers4, Regional Technical Forum (RTF) approved and provisional
savings estimates and protocols, Efficiency Maine Technical Reference Manual, and the
New York Department of Public Service Technical Reference Manual. Use of savings
values from other credible sources should be confirmed to be current and the best‐
available source of savings estimation. The underlying assumptions, conditions, or other
factors on which the savings estimates are based on should be verified as applicable for its
intended use. Note that weather‐sensitive measures from other regions may need to be
adjusted for local climatic conditions.
3. Project‐specific savings calculations – The program administrator estimates energy
savings using generally accepted engineering calculations and methodologies. Or, the
program administrator sets guidelines for program participants to provide energy savings
estimates. In either case, the energy savings estimates should be consistent with the
approach described in this section of the manual and fully documented.
16.3 Measure Description
The custom measure description should be described in terms of what systems or equipment is
affected, how the measure will be implemented, and how energy will be saved. Key
assumptions or operating parameters should also be described. The description is summary in
nature, and it is written so it clearly conveys all key aspects of the measure. The level of detail is
contingent upon the measure’s complexity or its uniqueness.
What systems or equipment are affected – Identify the system or equipment that will
reduce its energy consumption after the measure is implemented. For example, the
building’s central cooling plant utilizes two 25 hp chilled water supply pumps to deliver a
constant flow of chilled water to multiple air handlers. Another example: The open office
area is illuminated by recessed 4‐foot, four‐lamp T12 lighting fixtures. The lights are
controlled by time clocks.
How the measure will be implemented – Describe what actions are taken, what
equipment is removed or installed, or what changes are made to the affected system. For
the previous two examples: VFDs will be installed to control the speed of the two chilled
water pumps, the air handlers’ three‐way valves will be replaced by two‐way valves, and
new control algorithms will be programmed into the existing building automation system
4 Note that older versions (pre‐2012) of IOU work papers or DEER data (pre‐2011) may be obsolete and
not representative of the best available energy savings information.
Custom Measure Protocol Section 16
Savings Estimation TRM 16‐5 ers
to vary chilled water flow based on zone cooling load. Or, for the lighting system
example, the existing fixture T12 lamps and ballasts will be retrofitted with high
performance T8 lamps and premium electronic ballasts. Two T8 lamps will replace four
T12 lamps in each fixture. Occupancy sensors will be installed in the private offices.
How the measure saves energy – Explain how implementing the measure brings about a
reduction in energy use. For the HVAC example: By converting the chilled water flow
from constant to variable flow, the chiller water pump speed will vary and therefore use
less energy. For the lighting example: The new lamps and ballast require less power while
maintaining space lighting levels. The private office occupancy sensors will reduce the
lighting on‐time by turning off lights when the office is unoccupied.
Key assumptions and operating parameters – Identify the key assumptions or operating
parameters that significantly affect the estimated energy savings. Often, these parameters
are the focus of post‐project evaluation efforts to verify reported energy savings. For the
HVAC example: System trend data indicates the cooling system operates most of the time
at part load, with the majority of operating hours at or near 50% of full load. For the
lighting example: The building is occupied for more than 16 hours per day, resulting in
more than 3,000 annual lighting operating hours. Although the private office lights have
manual switches, building staff reported that the lights are never turned off. Occupancy
light loggers were deployed and they confirmed that the lights are operating for extended
periods when the offices are unoccupied.
Examples of operating parameters – Examples include: hours of operation, occupancy
schedules, production rates, variable or constant loads, automated control sequences (i.e.,
the boilers are shut off when the outside temperature is above 60°F), conditioned or
unconditioned space, human interaction and behavioral influences, interactive effects, and
equipment efficiency at full and part load.
16.4 Savings Calculation Methods
To estimate energy savings, the baseline and efficient case energy use are estimated. The
difference between the two is the measure energy savings. Annual energy savings are estimated
using an engineering model or estimated/validated through measurement and verification.
16.4.1 Engineering Model
Engineering models are generally one of two types: a spreadsheet model or a computer
software model. The engineering model can be as simple a single equation utilizing applicable
input parameters (i.e., difference in pre‐ and post‐equipment efficiency multiplied by equivalent
full load hours) or a more complex analysis that accounts for dynamic operating parameters
and system interactions that affect energy use. A spreadsheet HVAC bin analysis, for example,
can be constructed to account for variable cooling and heating equipment loads that correlate to
outside weather conditions, production schedules, occupancy schedules, and/or operating
schedules. Computer software simulation models are effective at modeling complex and
dynamic building, equipment, or system interactions that affect energy use.
Section 16 Custom Measure Protocol
16‐6 Savings Estimation TRM ers
16.4.2 Model Transparency
Engineering models are subject to review. For models submitted by the program participant,
the program administrator must be able to review the savings estimates to ensure its validity.
Models used by a program administrator to estimate program or project‐specific measure
savings are often subject to third‐party review for the purposes of validating energy savings.
To assure an engineering model’s savings estimate is valid and reliable, the model should be
transparent and accessible to the reviewer. The savings algorithms for all calculations should be
completely described and sufficient enough so that the reviewer can reproduce the saving
estimate results. Equations in spreadsheet cells should be summarized (for each applicable
group or category) and each equation constant or variable defined. Any values derived from
external references or sources should be described. For complex models, a narrative should
accompany the model to guide the reviewer through the analysis.
Spreadsheet mega‐formulas should be sufficiently described so that any reviewer can follow
and confirm the formula logic. A mega‐formula is a complex formula created by combining
multiple formulas into a single formula, and it is characterized by the use of multiple embedded
functions. Mega‐formulas are very difficult, if not impossible, to decipher, so it is essential that a
step‐by‐step breakdown of the formula be fully explained.
16.4.3 Measurement and Verification
Where savings estimates are highly variable or uncertain, post‐project M&V can be used to
either validate energy savings or be the source of reported energy savings. Measurement and
verification (M&V), as defined by the IPMVP5, is the process of using measurements to reliably
determine actual savings. There are a variety of methods defined by IPMVP for using measured
data to estimate savings. They generally involve using measured data as input for engineering
models (the measured data calibrates the engineering model to site‐specific conditions) or as the
basis of statistical models, such as a whole‐building utility bill analysis. Statistical models can be
used to estimate energy savings based on measured data that is correlated to key parameters
that affect energy use, such as weather or production. In addition to the IPMVP, there are a
variety of available resources that provide guidance on statistical modeling techniques.6 M&V
costs can quickly escalate, so use of M&V to validate energy savings should be used sparingly.
And where used, M&V costs should be minimized through the use of statistical sampling
techniques.
16.5 Quality Assurance and Savings Validation
Whether or not a custom measure will realize its savings potential is dependent upon the
measure being properly installed, commissioned, and operating as predicted (in the savings
5 International Performance Measurement and Verification Protocol
6 For example, BPA regression guidelines, CPUC evaluation protocols, ASHRAE Guideline 14, CEC
commissioning guidelines. See Section 14 – References.
Custom Measure Protocol Section 16
Savings Estimation TRM 16‐7 ers
analysis). The following approaches are used to ensure the measure is achieving, or is capable
of achieving, energy savings.
Pre-Implementation
Documentation review – The measure should be properly documented, as described in
the following section. The documentation should be examined to ensure that it is complete
and that it provides all essential information for verifying savings estimates.
Site pre‐inspection and interviews – Site inspections may be conducted to verify
preexisting conditions, quantities of measures, key operating parameters, equipment
performance, and baseline assumptions in the measure documentation.
Measured data collection – To address uncertainties regarding the performance of the
measure or to confirm the validity of assumptions used in the baseline analysis, spot
measurements, data trending (via data loggers or building control systems), or other
performance tests may be conducted before the measure is implemented. Pre‐
implementation measured data is also collected if required as part of an M&V approach to
estimating savings.
Post-Implementation
Documentation retention – All program‐required documents should be reviewed to
ensure they are accurate and complete. All energy savings‐related documentation should
be retained for future savings validation or evaluation efforts.
Site post‐inspection and interviews – Site inspections and interviews may be conducted
to verify that the measure was installed, commissioned, and operating as intended.
Measured data collection – Spot measurements or data trending may be conducted to
verify measure key operating parameters, or to meet the requirements of an M&V plan.
Third‐party evaluation – The measure may be evaluated as part of a program evaluation
to verify energy savings.
16.6 Documentation
Proper documentation of custom measures is essential for demonstrating the reliability of
reported measure energy savings. A fully documented measure helps to ensure the measure is
installed and operating as intended. It will also help optimize program evaluation efforts by
providing evaluators with the necessary information that is needed to verify savings estimates.
A fully documented measure consists of a measure description, energy savings summary,
baseline description, savings calculations, and a summary of quality assurance activities.
Table 16‐1 provides a template for guiding program administrators through the
documentation process.
Section 16 Custom Measure Protocol
16‐8 Savings Estimation TRM ers
Table 16-1 Custom Energy Savings Measure Template
Custom Energy Savings Measure Description
Measure name Provide brief, but descriptive name.
What systems or equipment are affected? Identify the systems or equipment that will use less energy.
How will the measure be implemented? Describe what actions are taken, what equipment is removed or installed, or what changes are made to the affected system.
How does the measure save energy? Explain how implementing the measure brings about a reduction in energy use.
List of key assumptions and operating parameters Identify factors that significantly affect energy saving estimates.
Energy Savings Summary kWh/yr savings Estimated annual energy savings
kW peak demand reduction Demand reduction at the time of utility or CA grid peak demand.
Therms/yr savings Natural gas measures.
Measure EUL Cite source of EUL.
Incremental measure cost Report only costs associated with measure implementation, or additional costs of more efficient unit compared to baseline unit.
Baseline and Efficient Case Conditions Baseline type Natural replacement – code, current practice or
preexisting, or dual baseline – early retirement
Baseline description Pre-retrofit condition or adjusted baseline condition
Efficient case description Post-retrofit condition
Savings Calculations Approach Modified UES, reference to other credible source,
engineering model, measured data (M&V)
Savings equation(s) Savings formulas used in model, including a description of each equation parameter
Quality Assurance and Savings Validation Pre-implementation activities Document as needed.
Post-implementation activities Document as needed.
M&V plan If M&V is required, all reports, data, and supporting information should be considered part of the measure documentation.
Provisional Measures 17
Savings Estimation TRM
17‐1 ers
17. PROVISIONAL MEASURES
This section provides savings estimates for provisional measures. Provisional savings measures
are measures that do not yet meet the reliability standard of a UES measure. The most typical
are emerging technology or newly adopted program measures that exhibit significant energy
saving potential. Provisional measures may also include measures that have a minor impact
on overall program savings for which UES savings estimates are not yet available. Provisional
savings estimates provide an interim solution for reporting measure savings while testing,
evaluation, or demonstration efforts are under way to validate energy savings estimates.
Savings estimates for provisional measures have a higher degree of uncertainty than UES
estimates and are expected to be updated by current or future studies and evaluations. Given
the temporary nature of the savings estimate, each provisional measure is assigned a sunset
date after which the savings estimate should be updated or other sources or credible savings
estimates should be used. Future TRM updates will either revise the savings estimates and set a
new sunset date, revise the measure savings estimates and reclassify the measure as a UES
measure, or remove the measure. Revised savings will be based on the most current and best
available data.
The savings estimates provide a simplified approach for reporting measure savings. The
savings estimates are considered a secondary option when compared to savings estimates that
are validated through program measurement and verification.
It’s anticipated that provisional savings estimates will account for a relatively small portion of a
program administrator’s reported savings. Program administrators should track the percentage
of savings reported that are based on provisional savings estimates. If the percentage exceeds a
specified amount, it should be reported in the program’s annual regulatory compliance report
along with a plan of action for reducing the uncertainty in the reported savings.
Section 17 References
17‐2 Savings Estimation TRM ers
17.1 Web-Enabled Programmable Thermostats – Commercial Application
Measure Summary Information
Measure description Replacement of an existing nonprogrammable thermostat with a web-enabled programmable thermostat or replacement of a programmable thermostat with a web-enabled programmable thermostat.
End use HVAC – commercial
Measure eligibility The measure is applicable for advanced programmable thermostats that allow temperature setpoints and operating schedules to be monitored and set remotely via an Internet connection.
Savings type Provisional
Unit energy savings 101 – 223 kWh per tons of HVAC unit capacity 0.202 – 0.432 kWh per square foot of conditioned space See Energy Savings Table for savings by HVAC unit type and climate zone
Incremental measure cost Project-specific costs should be obtained and used for reporting measure costs. The applicable measure costs are the full installation, equipment, and material costs for installing the thermostat.
EUL 11 years1
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – preexisting conditions
Baseline description A commercial-grade nonprogrammable thermostat. Or a commercial-grade programmable thermostat that has any of the following conditions: sensors are out of calibration, used primarily in manual bypass mode, has complex control settings that are not user-friendly, or has a high level of user dissatisfaction resulting in suboptimal use of the thermostat.
Efficient case description New web-enabled programmable thermostat. Remote access monitoring and adjustment capabilities are actively used. Thermostat features may include: ease of use, advanced control logic for optimum start/stop or setpoint adjustments, heat pump control logic minimizing or eliminating use of electric emergency heating, and accurate control of space temperature (proportional and integral control algorithms).
Savings Calculation Annual energy savings formula
See TRM500 spreadsheet for methodology used and sources relied upon to estimate savings. The savings estimates are based on CEUS2 data for energy use and assume a 10% savings reduction.
Peak demand reduction 0 kW
Definitions See TRM500
Key Parameters for Estimating Savings HVAC cooling capacity The HVAC unit nominal capacity or size, in tons, is needed to estimate measure
savings. If the unit size is unknown, then the conditioned area served by the unit may be used to estimate savings
Sq ft of conditioned area The conditioned area may be used to estimate measure savings.
HVAC unit type The type of HVAC unit should be obtained. Applicable HVAC types are electric cooling only, electric cooling/gas heating, and all-electric air source heat pump units.
Existing thermostat type The thermostat make and model should be obtained to confirm thermostat capabilities and obtain other relevant data, such as wiring diagrams
Existing thermostat programmable settings
The thermostat operating status (e.g., in programming mode, in manual bypass) should be obtained as well as the currently used programmable settings. This information will be useful for evaluating and validating program savings
Custom Measure Protocol Section 16
Savings Estimation TRM 17‐3 ers
Program Design and Eligibility Considerations gible thermostats should have advanced programming capabilities and be accessible via the Internet. Users should be
required to maintain an Internet connection to the thermostat and be encouraged to regularly use its reporting and alarm features. Program administrators may also wish to limit or prohibit replacement of existing programmable thermostats where the thermostat’s operating schedules and temperature setbacks are being used effectively.
Savings Estimate Expiration Date The savings estimates for this measure are provisional and expire on July 1, 2019. At that time, the savings estimates should be revised and updated based on the best available data. There are a number of studies that are either ongoing or in the planning stages that are expected to provide recommendations on the best way to estimate and report program savings. In addition, the studies should identify and provide best practices for effective program design and implementation.
1DEER 2014, DEER2014-EUL-table-update_2014-02-05.xlsx 2California End Use Survey-2006, CEC
17.1.1 Energy Savings Table – kWh per Ton of Cooling Capacity1
Climate Zone AC Unit Heat Pump
CZ02 101 116
CZ03 200 218
CZ04 179 191
CZ05 179 191
CZ08 213 223
CZ09 195 204
CZ10 185 192
CZ11 164 169
CZ12 138 146
CZ13 164 169
CZ14 185 192
CZ15 204 218
CZ16 195 204 1Tons-capacity is the rated or nominal full load cooling capacity of the HVAC unit.
17.1.2 Energy Savings Table – kWh per Square Foot of Conditioned Area
Climate Zone AC Unit Heat Pump
CZ02 0.202 0.231
CZ03 0.317 0.347
CZ04 0.356 0.378
CZ05 0.356 0.378
CZ08 0.422 0.441
CZ09 0.378 0.396
CZ10 0.38 0.394
CZ11 0.334 0.343
CZ12 0.269 0.285
CZ13 0.334 0.343
CZ14 0.38 0.394
CZ15 0.404 0.432
CZ16 0.378 0.396
Section 17 References
17‐4 Savings Estimation TRM ers
17.1.3 Energy Savings Table – Therms per Ton of Cooling Capacity
Climate Zone Therms/Ton
CZ02 3CZ03 9CZ04 6CZ05 6CZ08 3CZ09 3CZ10 4CZ11 6CZ12 7CZ13 6CZ14 4CZ15 4CZ16 3
17.1.4 Energy Savings Table – Therms per Square Foot of Conditioned Area
Climate Zone Therms/sf
CZ02 0.006CZ03 0.014CZ04 0.011CZ05 0.011CZ08 0.006CZ09 0.006CZ10 0.007CZ11 0.012CZ12 0.014CZ13 0.012CZ14 0.007CZ15 0.008CZ16 0.006
17.2 Smart Thermostats – Residential
Measure Summary Information
Measure description Replacement of an existing nonprogrammable thermostat with a web-enabled programmable thermostat or replacement of a programmable thermostat with a web-enabled programmable thermostat.
End use HVAC – residential
Measure eligibility The measure is applicable for advanced programmable thermostats that allow temperature setpoints and operating schedules to be monitored and set remotely via an Internet connection.
Savings type Provisional
Unit energy savings 0.009 – 0.304 kWh per square foot of conditioned area 0.001 – 0.022 therms per square foot of conditioned area See Energy Savings Tables for savings by climate zone and HVAC unit type
Custom Measure Protocol Section 16
Savings Estimation TRM 17‐5 ers
Incremental measure cost Project-specific costs should be obtained and used for reporting measure costs. The applicable measure costs are the full installation, equipment, and material costs for installing the thermostat.
EUL 11 years1
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – preexisting conditions
Baseline description A nonprogrammable thermostat. Or a programmable thermostat that has any of the following conditions: sensors are out of calibration, used primarily in manual by-pass mode, has complex control settings that are not user-friendly, or has a high level of user dissatisfaction resulting in suboptimal use of the thermostat.
Efficient case description New web-enabled programmable thermostat. Thermostat features may include: ease of use, advanced control logic for optimum start/stop or setpoint adjustments, heat pump control logic minimizing or eliminating use of electric backup heating, and accurate control of space temperature (proportional and integral control algorithms).
Savings Calculation Annual energy savings formula
See TRM501 spreadsheet for methodology used and sources relied upon to estimate savings. The savings estimates are based on RASS2 data for energy use and assume a 10% savings reduction.
Peak demand reduction 0 kW
Definitions See TRM501 spreadsheet
Key Parameters for Estimating Savings Square feet of conditioned area
The dwelling’s conditioned area is needed to estimate measure savings. If the area cannot be obtained, then the HVAC unit’s size may be used to estimate savings.
HVAC unit size The HVAC unit nominal capacity or size, in tons, may be used to estimate savings.
HVAC unit type The type of HVAC unit should be obtained if used for estimating savings. Applicable HVAC types are electric cooling only, electric cooling/gas heating, and all-electric air source heat pump units.
Existing thermostat type The thermostat make and model should be obtained to confirm thermostat capabilities and obtain other relevant data, such as wiring diagrams.
Existing thermostat programmable settings
The thermostat operating status (e.g., in programming mode, in manual bypass) should be obtained as well as the currently used programmable settings. This information will be useful for evaluating and validating program savings.
Program Design and Eligibility Considerations Eligible thermostats should have advanced programming capabilities and be accessible via the Internet. Users should be required to maintain an Internet connection to the thermostat. Program administrators may also wish to limit or prohibit replacement of existing programmable thermostats where the thermostat’s operating schedules and temperature setbacks are being used effectively.
Savings Estimate Expiration Date The savings estimates for this measure are provisional and expire on July 1, 2019. At that time, the savings estimates should be revised and updated based on the best available data. There are a number of studies that are either ongoing or in the planning stages that are expected to provide recommendations on the best way to estimate and report program savings. In addition, the studies should identify and provide best practices for effective program design and implementation.
1DEER 2014, DEER2014-EUL-table-update_2014-02-05.xlsx 2RASS, Residential Appliance Saturation Survey, 2009
Section 17 References
17‐6 Savings Estimation TRM ers
17.2.1 Energy Savings Table – kWh per Square Foot of Conditioned Area
Climate Zone
Single Family A/C
Unit Single Family-
Heat Pump Multifamily-
A/C Unit Multifamily-Heat
Pump
CZ02 0.051 0.070 0.015 0.038
CZ03 0.014 0.176 0.009 0.135
CZ04 0.034 0.055 0.017 0.041
CZ05 0.031 0.055 0.017 0.041
CZ08 0.037 0.304 0.024 0.030
CZ09 0.060 0.055 0.042 0.037
CZ10 0.087 0.084 0.096 0.025
CZ11 0.084 0.056 0.072 0.025
CZ12 0.060 0.065 0.045 0.035
CZ13 0.084 0.056 0.072 0.025
CZ14 0.087 0.084 0.096 0.025
CZ15 0.043 0.070 0.023 0.018
CZ16 0.060 0.055 0.042 0.037
17.2.2 Energy Savings Table – Therms per Square Foot of Conditioned Area
Climate Zone Single Family-
AC unit Multifamily-
AC unit
CZ02 0.012 0.002
CZ03 0.022 0.009
CZ04 0.010 0.003
CZ05 0.011 0.003
CZ08 0.009 0.002
CZ09 0.006 0.002
CZ10 0.012 0.004
CZ11 0.010 0.004
CZ12 0.011 0.006
CZ13 0.010 0.004
CZ14 0.012 0.004
CZ15 0.007 0.001
CZ16 0.005 0.002
Custom Measure Protocol Section 16
Savings Estimation TRM 17‐7 ers
17.3 Tier II Advanced Power Strips – Residential
Measure Summary Information
Measure description Replacement of a standard electric power strip with a new Tier II advanced power strip (Tier II APS)
End use Residential – for controlling audio video home entertainment equipment
Measure eligibility Qualifying products must be tested in both lab and field trials to demonstrate performance and savings potential
Savings type Provisional
Unit energy savings 212 kWh per unit1
Incremental measure cost $451
EUL 5 years1
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – preexisting conditions
Baseline description A standard power strip that supplies electric power to a minimum of two AV devices with at least one being a television
Efficient case description A Tier II APS controlling power to a minimum of two AV devices with at least one being a television
Savings Calculation Annual energy savings formula
Savings are derived from field trial test data.1
Peak demand reduction 0.003 kW
Definitions Currently, there are no industry-standard specifications for Tier II APS devices. The University of California, Irvine’s California Plug Load Research Center (CALPLUG) has suggested that the devices at a minimum have the following features:
Usage sensing – provide at least one method to sense and determine consumer utilization and usage patterns
Advanced power analysis – in addition to voltage and current sensing, the device must perform advanced power analysis, including true root mean square power analysis, power factor analysis, and load signature detection
Control algorithms – perform automated power management of connect devices based on data and information acquired
Key Parameters for Estimating Savings AV entertainment equipment controlled by the device
Savings are relative to the amount of power controlled by the device.
Equipment use patterns Savings are achieved by powering down equipment after a period (typically 1 hour) of inactivity
Behavior User acceptance of device is essential to the persistence of savings
Program Design and Eligibility Considerations Eligible Tier II devices should meet the performance and test recommendations of an independent testing or research agency, such as CALPLUG. Program administrators should consider ways to ensure that the device is properly installed and controls at a minimum one television and one other AV device such as a DVD player, cable box, or surround sound system. Program administrators should also consider ways to ensure the device is not removed, or verify installation and persistence of use by conducting post installation evaluation.
Savings Estimate Expiration Date The savings estimates for this measure are provisional and expire on July 1, 2019. At that time, the savings and effective useful life of the measure should be revised based on ongoing tests, evaluations, and studies.
1IOU workpaper, WPSDGEREHE0004, Revision 0.3, August 25, 2015
Section 17 References
17‐8 Savings Estimation TRM ers
17.4 Home Energy Reports – Residential
Measure Summary Information
Measure description Behavioral program – delivery of monthly energy reports that are designed to influence customers to reduce energy use by providing comparisons to efficient and similar homes.
End use Residential – comprehensive
Measure eligibility Applicable to residential home energy reports that provide feedback, comparisons, and efficiency suggestions based on monthly electric and/or natural gas energy use.
Savings type Custom – provisional Program savings are reported using the custom input section of the POU reporting tool (currently the E3 reporting tool spreadsheet)
Unit energy savings 1.48% of annual electric energy use1 0.60% of annual natural gas energy use2 The preferred approach for estimating program-specific savings is to conduct randomized control trial (RCT) evaluation. Other saving estimate methods are being explored that may eventually be proven to produce comparable results.
Incremental measure cost Program administrator implementation costs for the program
EUL 1 year. It’s possible that savings could persist beyond the treatment (i.e., delivery of monthly reports), which would result in a EUL greater than 1. However, persistence of savings has not yet been substantiated to a degree that would allow for the use of default persistence assumptions. Additionally, reporting annual savings estimates with EULs greater than 1 year requires adjustment of savings claimed in future years should the program operate for more than 1 year.
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – preexisting conditions
Baseline description Nonparticipant in the program (does not receive home energy reports)
Efficient case description Customer receives monthly energy reports
Savings Calculation Annual energy savings formula
Based on post-measurement results using randomized control trials1
Peak demand reduction N/A
Definitions N/A
Key Parameters for Estimating Savings Annual energy use Pre- and post-treatment energy use of participants and control group non-
participants
Program Design and Eligibility Considerations N/A
Savings Estimate Expiration Date The savings estimates for this measure are provisional and expire on July 1, 2019. At that time, savings should be revised based on the best available data and studies.
1 Comparison of Methods for Estimating Energy Savings from Home Energy Reports, 2015, PG&E 2 Evaluation of Pacific Gas and Electric Company’s Home Energy Report Initiative for the 2010-2012 Program, 2013, PG&E
Custom Measure Protocol Section 16
Savings Estimation TRM 17‐9 ers
17.5 T8 LED Tube Lamp Replacement – Nonresidential
Measure Summary Information
Measure description T8 LED tube lamp replacement of an existing T8 lamp. The new LED lamp uses the existing lamp ballast.
End use Lighting - nonresidential
Measure eligibility Replacement of existing T8 or T12 lamp
Savings type UES – provisional
Unit energy savings See Energy Savings Table
Incremental measure cost Full measure cost - $231
RUL measure cost - $14 (see TRM 504 spreadsheet)
EUL RUL
= 15 years = 5 years
Baseline and Efficient Case Conditions Applicable baseline types Dual baseline – early retirement
Baseline description For 23W LED lamp: T8 32W For 19W LED lamp: T8 28W For 16W LED lamp: T8 25W
Efficient case description 23W LED tube lamp 19W LED tube lamp 16W LED tube lamp Existing lamp ballast
Savings Calculation Annual energy savings formula
See TRM504 spreadsheet
Peak demand reduction
Definitions kWp =
hrs = IE =
IEd = CDF=
Peak demand reduction between baseline and new lamp Default operating hours, for retail and office end-use spaces HVAC interactive effects, energy (statewide average) HVAC interactive effects, demand (statewide average) Coincident demand factor (building type average)
Key Parameters for Estimating Savings See CalTF proceedings
Program Design and Eligibility Considerations See CalTF proceedings
Savings Estimate Expiration Date The savings estimates for this measure are provisional and expire on July 1, 2019
1 2015-02-04-LED-Tube-Lamp_Replacement-Cal-TF-Workpaper-Abstract-9zjp.docx
Section 17 References
17‐10 Savings Estimation TRM ers
17.5.1 Energy Savings Table
T8 Tube Lamp Wattage End Use
kWh Savings
kWp Reduction
23 Office 18 0.00419 Office 17 0.00416 Office 17 0.00423 Retail 24 0.00419 Retail 22 0.00416 Retail 22 0.004
17.6 Tier II Advanced Power Strips – Nonresidential
Measure Summary Information
Measure description Replacement of a standard electric power strip with a new Tier II advanced power strip (Tier II APS)
End use Nonresidential – for controlling workstation plug load devices
Measure eligibility Utilizes more sophisticated control algorithms than a timer, occupancy sensor, or master/controlled model (Tier I)
Savings type Provisional
Unit energy savings 252 kWh per unit
Incremental measure cost $651
EUL 5 years
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – preexisting conditions
Baseline description A standard power strip that supplies electric power to typical workstation plug loads.
Efficient case description Tier II APS device for a personal computer workstation. The device monitors computer processes to determine when PC equipment can be de-energized. Software that communicates with the PC is installed. The device saves energy by de-energizing peripheral devices and putting the computer into a low-power standby state. Software alerts enable the user to override control activation.
Savings Calculation Annual energy savings formula
Savings estimates are derived by applying an uncertainty factor to the savings estimates found in the emerging technology report1 The emerging technology report savings estimate is based on simulated results at a single site in 2014. The very small sample size is not statistically significant. In addition, user acceptance was not tested. Last, custom software solutions may be needed to meet site IT protocols for installing software on the computers. Therefore, there is a great deal of uncertainty in extrapolating savings from the field study for use as a prescriptive savings estimate applicable to all installations. To determine a conservative savings estimate for provisional use, the test’s average savings estimate for office and computer labs (337 kWh/yr) is multiplied by 0.75.
Peak demand reduction 40 watts1
Definitions Currently, there are no industry-standard specifications for Tier II APS devices. The University of California, Irvine’s California Plug Load Research Center (CALPLUG) has suggested that the devices at a minimum have the following features:
Usage sensing – provide at least one method to sense and determine consumer utilization and usage patterns
Custom Measure Protocol Section 16
Savings Estimation TRM 17‐11 ers
Advanced power analysis – in addition to voltage and current sensing, the device must perform advanced power analysis, including true root mean square power analysis, power factor analysis, and load signature detection
Control algorithms – perform automated power management of connect devices based on data and information acquired
Key Parameters for Estimating Savings Workstation plug load equipment controlled by the device
Savings are relative to the amount of power controlled by the device.
Equipment use patterns Savings are achieved by powering down equipment after a period of inactivity.
Behavior User acceptance of device is essential to the persistence of savings.
Program Design and Eligibility Considerations Given the significant uncertainty in the savings estimate, it is recommended that program evaluation be conducted to verify savings estimates specific to each utility service territory.
Savings Estimate Expiration Date The savings estimates for this measure are provisional and expire on July 1, 2019.
1Tier 2 Advanced Power Strips in Residential and Commercial Applications, SDG&E Emerging Technologies Program, Technology Assessment Report, Project ID ET14SDG8021 & ET14SDG8031, April 2015.
17.7 Task/Ambient Lighting and Occupancy-based Plug Load Control
Measure Summary Information
Measure description Retrofit of existing overhead office lighting to achieve lower ambient lighting levels, in conjunction with the addition of task lighting and occupancy-based plug load controls. See the LBNL1 report for a detailed description.
End use Lighting – office, plug load – office
Measure eligibility See Appendix A of the LBNL report for system features and performance specifications.
Candidate site requirements:
Commercial office space with workstation cubicles Facility built or renovated in the1990 through 2010 time period 9- to 10-foot ceilings Existing overhead fluorescent light fixtures that are either recessed or
pendant-mounted Overhead lighting covers the same area as the workstations that include task
lighting and plug load equipment Existing switch-based or networked lighting controls without daylight dimming Network access to workstations for occupant level feedback software or
network access to a common display for workstation area feedback Average daily occupancy of 8 hours per day, 5 days per week, or greater
Savings type Semi-custom measure, provisional
Unit energy savings The expected savings range is 11%–23% of the whole building annual energy use. Site-specific savings are determined through a two-step process. First, project savings potential is estimated using the LBNL savings assessment tool (TRM 505). Final savings estimates are determined through measurement and verification.
Incremental measure cost See LBNL report.
EUL RUL
Lighting – 15 years, controls – 5 years, or combined – 10 years One-third of EUL
Section 17 References
17‐12 Savings Estimation TRM ers
Baseline and Efficient Case Conditions Applicable baseline types Natural replacement – code, dual baseline – early retirement
Baseline description The baseline systems consist of: overhead lighting, either recessed or pendant-mounted, manual operation of plug loads (not including computers or printers), and traditional (non-LED) task lighting with manual switching. For projects using a code baseline, overhead lighting power is based on Title 24 allowed lighting power allowances.
Efficient case description Overhead lighting for technology package 1 consists of:
Retrofitted overhead light fixtures with either lower-wattage fluorescent lamps or T8 LED replacement lamps. The retrofitted lighting system has lower lumen output capable of producing an average light level of 200 lux at the floor plane.
Overhead lighting for technology package 2 consists of:
Retrofitted or new light fixtures with occupancy and tuning controls. Occupancy controls switch in response to occupancy at either the zone or
cubicle level. Daylighting dimming controls for applicable areas All lighting controls fully tested and commissioned
For both technology packages:
LED task lighting, occupancy-controlled Plug load occupancy controls (for each workstation). Typical devices
controlled include monitors, task lights, cell phone chargers, coffee makers)
Savings Calculation Annual energy savings formula
Initial savings estimates are determined using the LBNL savings assessment tool (TRM 505). The final savings estimate is determined after the retrofit has been completed and controls have been commissioned. Various approaches to measuring and verifying savings (per the IPMVP) may be used – see Section 6 of the LBNL report. Final savings estimates are based on: the assessment tool, with inputs and assumptions calibrated by the results of the measurement and verification, or custom-calculated (or TRM 400) savings estimates using control savings factors developed through measurement and verification.
Peak demand reduction See LBNL savings assessment tool (TRM 505)
Definitions N/A
Key Parameters for Estimating Savings The following inputs are used in the LBNL assessment tool for estimating savings:
Building and occupied areas Percent area to be retrofitted Ratio of open to private office space Number of occupants Occupancy schedule Quantity and type of existing overhead fixtures Existing lighting control type
Program Design and Eligibility Considerations The key objective of the program is to convert existing overhead lighting systems (typically found in office buildings 10–15 years old) into ambient-task lighting systems with the addition of occupancy-based plug load controls. To ensure savings are achieved, the program should establish guidelines for following the best practices defined in the LBNL report for design, site preparation, installation, commissioning, measurement and verification, and savings persistence. Installation and operation verification Program requirements should follow the guidance provided in Section 6 of the LBNL report. Installers should be required to provide a project commissioning report providing the results all functional performance tests. The tests should provide proof that the control systems operate as intended and are optimized for maximum energy savings. The report should include measurements of light levels to verify minimum lighting levels are being maintained.
Custom Measure Protocol Section 16
Savings Estimation TRM 17‐13 ers
Measurement and verification Program requirements should follow the guidance provided in Section 6 of the LBNL report. In general, greater levels of M&V rigor should be used for higher levels of energy savings. The installer should be required to provide the bulk of the data collection requirements, including pre- and post- installation power measurement and short-term monitoring. Where network or building automation controls are installed, the systems should be capable of continuous measurement of power consumption and measurement of other key operating parameters that can be used to verify energy savings and savings persistence.
Savings persistence The program requirements should follow the guidance provided in Section 7 of the LBNL report. Ensuring persistence requires operator training on the design intent and operation of the control systems, and ongoing data collection (light level measurements, control operation, space changes, occupant feedback, and sensor calibration).
Savings Estimate Expiration Date There is no expiration date, but the program design and methodology for estimating savings should be reviewed and revised as necessary.
1 California Publicly Owned Utilities (POU) – LBNL “Beyond Widgets” Project, Task-ambient lighting and occupancy-based plug load control, System Program Manual, July 14, 2017, Lawrence Berkeley National laboratory, US DOE
References 18
Savings Estimation TRM 18‐1 ers
18. REFERENCES
The following resources were used in the development of this technical reference manual.
ACEE Emerging Hot Water Technologies and Practices for Energy Efficiency as of 2011, Feb
2012.
A Meta‐Analysis of Energy Savings from Lighting Controls in Commercial Buildings, Lawrence
Berkeley National Laboratory, 2011.
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ʺFlow Control,ʺ a Westinghouse publication, Bulletin B‐851, F/86/Rev‐CMS 8121.
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California Energy Commission’s Public Interest Energy Research Program Technical Brief,
“Energy Use of Household Electronics: Taming the Wild Growth,” September 2008.
California Energy Commission CASE study: “Night Ventilation Cooling Compliance Option”
September 2011
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California Technical Forum
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Consortium for Energy Efficiency, High Efficiency Residential Gas Water Heating Initiative
Consortium for Energy Efficiency, High Efficiency Residential Gas Heating Initiative
CL&P and UI Program Savings Documentation for 2008 Program Year, Connecticut Light &
Power Company, September 2007.
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http://www.energystar.gov/index.cfm?fuseaction=find_a_product.showProductGroup&pgw_code=LU.
ENERGY STAR room air conditioner calculator, www.energystar.gov.
ENERGY STAR Room Air Conditioners Key Product Criteria
Section 17 References
18‐2 Savings Estimation TRM ers
ENERGY STAR Automatic Commercial Ice Maker Specifications
ENERGY STAR commercial equipment kitchen calculator
ENERGY STAR appliance calculator
ENERGY STAR Program Requirements, Product Specification for Clothes Washers, Version 8.0
Guidelines for the Development and Maintenance of RTF Savings Estimation Methods, July 2012,
Regional Technical Forum.
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Organization, www.evo-world.org.
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Energy Commission, 2011.
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Measures, Massachusetts Electric and Gas Energy, October 2010.
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Power Agency and Southern California Public Power Authority, KEMA, December 2009.
National Renewable Energy Laboratory Analysis of Hot Water Heat Pumps, Technical Report #
NREL/TP‐5500‐58594, July 2013.
New York Standard Approach for Estimating Energy Savings from Energy Efficiency Programs,
New York Department of Public Service, December 2008.
Northwest Power and Conservation Council’s Regional Technical Forum, http://www.nwcouncil.org/energy/rtf/Default.htm.
PG&E Food Service Technology Center.
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Super‐Efficient Dryer Initiative (SEDI)
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Energy Efficiency & Renewable Energy (EERE), U.S. Department of Energy, http://www1.eere.energy.gov/office_eere/de_ump.html.