DCAS Energy Management

August 15, 2014 Ellen Ryan & Mike Dipple

DCAS Energy Management Mission DCAS Energy Management (DEM) serves as the hub for City government’s energy management.

DEM provides energy services for City government including supply procurement, efficiency and renewables projects, performance tracking, and training to: • reduce energy consumption • provide cleaner resources • enable resiliency • support energy sustainability initiatives.

Core Functions: • Energy Billing & Procurement • Managing programs to reduce greenhouse

gas (GHG) emissions from municipal operations 30% by 2017 (30x17)

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NYC – where government goes green TM

NYC Government Operations

To serve 8.4 million New Yorkers require:

• ~300,000 employees • 4,000 buildings

(1,300 K-12 schools) • Peak demand 1000 MW • 4,222m kWh of electricity • 1.18m therms of natural gas • 2.09m mlbs of steam • ~$870 million in energy costs • 19,324 miles of streets • 14 in-city wastewater treatment plants

Very diverse set of buildings: • Age varies: mostly old, but

some new • Size varies: from comfort

stations to > 1 million sf • Type varies: schools,

precincts, fire houses, office buildings, courts, prisons, libraries, hospitals, garages, repair shops

64% of GHG emissions from existing buildings

NYC – where government goes green TM

Energy Budget & Procurement

• Responsible for setting the budget and paying the bills for City Government’s Heat Light & Power (“HLP”)

• Annual Energy Budget covers Electricity, Gas & Steam

• FY 15 Budget ~$800 million • Manages EC3 – City energy billing and budget system

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NYC – where government goes green TM

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10 Sustainability Goals • Improved air quality • Clean, reliable energy • Climate action • …and more

To achieve these goals: • City government to lead

by example • Set goal to reduce GHG

emissions from government operations 30% by 2017

PlaNYC: NYC Sustainability Roadmap

NYC – where government goes green TM

From PlaNYC to 30 x 17:

Executive Order 109 released in Oct 2007: • Set 30% by 2017 goal • Established Energy Conservation Steering Committee • Established funding commitment of 10% of energy

expenditures or ~ $80 million/year • Mandated a plan

In July 2008 Committee published: • Long-Term Plan to Reduce Energy Consumption and

Greenhouse Gas Emissions of Municipal Buildings and Operations

30x17 progress to date

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LL84 (Benchmarking)

• 3097 Buildings over 10,000 square feet benchmarked in 2013

• 11% EUI reduction over last three years

• Almost half of City’s building stock is over 20,000sf

LL87 (Audits & Retrofits)

• 335 Energy Audits completed, 36 underway

• 190 Building Retrofits completed,65 underway

• Exploring cost-effective alternatives to traditional energy auditing

Clean Resources

• .7 MW Renewables installed, 1.85 additional underway

• 4.8 MW of Cogeneration installed, 25 additional underway

• Over 50,000 metric tons of fugitive methane emissions leaks repaired

• 38% of anaerobic digester gas from WWTP now beneficially reused

Transportation

• 618 Electric vehicles and plug-in hybrids currently in the City Fleet

• 5,385 Hybrid vehicles in the City Fleet

• 3425 LED streetlights installed to replace sodium

• 60,000 LED streetlights in progress by Dec 2015

Training and O&M

• 1,977 City employees trained in efficient building operations

• 8 courses (4 for certification) offered in Energy Management Institute

• Dozens of energy usage reports accessible for Agencies

• Quarterly meetings with Agencies to collaborate on energy needs and opportunities

19% reduction since 2006 (through FY12)*

* Source: Inventory of NYC Greenhouse Gas Emissions (Dec 2013)

Municipal GHG Footprint

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62%

17%

2%

2012 City Government GHG Emissions by Sector

Transportation (12%) Solid Waste (5%) Water Supply (.5%) Other (.3%)

Wastewater Treatment Plants

Buildings

Streetlights

Sectors not considered –

18%

Sectors considered –

82%

Public Buildings Efficiency Program

To maximize energy efficiency in public buildings, deliver cost savings, and drive local job creation, DCAS will: 1. Expand the ACE Program for quick, low-cost capital improvements; 2. Execute deep retrofits through performance-based contracts to maximize the potential of complex buildings; 3. Improve building operations & maintenance to ensure efficient operation and longevity of investments; 4. Increase solar photovoltaic capacity through new low-cost contracts to make NYC a national leader in solar and jobs; 5. Expand the IDEA Program for cleantech projects that demonstrate new energy solutions and support innovation and NYC jobs, starting with battery storage.

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1. Expand the ACE Program

The Accelerated Conservation and Efficiency (“ACE”) Program provides funding for shovel-ready agency identified, managed and implemented energy capital projects. • ACE solicits proposals for energy-reducing projects, funding those with

optimal greenhouse gas (GHG) reductions, cost savings, and other benefits to the City

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• Currently funded ACE projects include:

– Steam system optimization – Lighting projects – Oil-to-gas conversions – Indoor pool covers – High efficiency motors and VFDs – CAV to VAV systems

Opportunity: Expand to more agencies and projects; fund incremental cost of energy efficiency improvements on capital replacement projects.

ACE projects underway at 500+ buildings

2. Optimize Efficiency Retrofits

Following Local Law 87, DEM's audit and retrofit program implements Energy Conservation Measures (ECMs) at buildings over 50,000 square feet:

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• 190 retrofits since 2009 with GHG reductions of nearly 28 thousand MT CO2e

• Typical ECMs include: – Lighting and sensors – HVAC system upgrades – Efficient Motors – Building Management Systems

Opportunity: increase deep energy retrofits using new types of contracts such as integrated energy performance contracts (EPC) to incentivize holistic analysis of building reduction potential and deploy cogeneration to support resiliency of critical facilities such as hospitals and wastewater treatment plants.

Lighting upgrade at Parks Recreation Center

3. Expand Operations & Maintenance

DCAS manages a number of programs to support Agency energy management staff in the efficient operation of their facilities, including:

Opportunity: An expanded PM program, coordinated through DCAS, will ensure all agencies benefit from improved operational efficiency and the sharing of best practices; An expanded ExCEL program provides more agencies with the resources to address deferred maintenance, long-term energy planning, and workforce development.

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– Preventative Maintenance (PM) programs to provide staff, tools, materials to improve operational efficiency of building systems and ensure return on capital equipment investments

– Expenses for Conservation & Efficiency Leadership (ExCEL) a competitive funding program for Agency-identified O&M, training, tools and other energy saving projects.

4. Increase Municipal Solar PV

Current Installations: • 1.9 Megawatts (MW) of solar PV

coming online this fall through City’s first solar power purchase agreement (PPA) – no upfront capital cost to City

• 0.7 MW installed on schools, precincts, garages, and other sites

• Six (6) solar hot water systems installed at five FDNY firehouses and one Pool & Recreation center

Opportunity: Expand solar on City buildings by 100 MW, particularly schools and centers of refuge, and demonstrate solar as back-up power resource through two cost-effective approaches:

– Maximize NYSERDA incentives for capital construction – Procure new Solar PPA to leverage 30% Investment Tax Credit

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DEP’s Port Richmond Wastewater Treatment Plant

5. Expand IDEA

The Innovative Demonstrations for Energy Adaptability (IDEA) program engages companies of emerging and under-utilized technologies to test their solutions in City facilities. The first phase targeted building controls; the second will test energy storage solutions.

Opportunity: Expansion of IDEA to additional technologies; roll out of proven high-performing solutions across City’s applicable building portfolio via new procurements, for optimal savings and job creation, and paving the way for private sector technology adoption.

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The goals of IDEA are to: – Demonstrate clean tech solutions – Address facility operational needs – Integrate proven technologies into

energy planning and investments – Drive market transformation and job

creation for emerging energy companies

NYC – where government goes green TM

Thank You

Questions?

Ellen Ryan Deputy Assistant Commissioner eryan@dcas.nyc.gov

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Benchmarking

August 15, 2014 Ellen Ryan & Mike Dipple

NYC – where government goes green TM

LOCAL LAW 84: BENCHMARKING

The City completed energy benchmarking of all City-owned buildings over 10,000 square feet in May ‘10, ‘11, ’12, ‘13 & 14

• Better understand actual energy performance and emissions of individual buildings

• Track building energy performance over time • Verify impact of retrofit projects • Compare like buildings to each other

• 3,097 buildings in EPA Portfolio Manager: • 1,426 schools • 1,671 other buildings

• Log-ins available for all agencies to access their data

Goals

Overview

Status

NYC – where government goes green TM

BENCHMARKING

Retro-Commissioning and Retrofit

August 15, 2014 Ellen Ryan & Mike Dipple

NYC – where government goes green TM

LOCAL LAW 87: ENERGY AUDITS AND RETRO-COMMISSIONING

Local Law requires ASHRAE Level II Energy Audits and specific retro-commissioning process

• Baseline facility operations and state of repair • Improve building energy performance • Identify retro-commissioning and retrofit opportunities • Set funding priorities for capital and expense money

• 146 energy audits and 135 RCx audits • 189 Energy Efficiency Reports • Plan to do ~100 EERs per year • 272 RCMs completed in 94 facilities

Goals

Overview

Status

NYC – where government goes green TM

DEM is targeting City facilities with the most opportunity for improvement in order to achieve the most energy savings with limited resources.

Operations & Maintenance

Audits & Retrofits

Audits Retro-CX

Collaborate with

Agencies Retrofits

Energy Savings

Evaluate benchmark

scores

Final Priority

List

Benc

hmar

king

PLANNING PROCESS

Retro-com

NYC – where government goes green TM

Retro-commissioning procedures Consult with the building's operations and maintenance staff Includes major system components; chillers, boilers, cooling

towers, air handlers, pumps Operating protocols, calibration, and sequencing (HVAC) system temperature and humidity set points and

setbacks Control sequences and critical controls

Per cent component testing requirements Deficiencies found in the assessment must be corrected

LL 87 AND DOB RULES

NYC – where government goes green TM

Retro-commissioning procedures Fans, boilers, and pumps that are designed to run in parallel greater

than ten horsepower are tested for proper load distribution/balance

A sample set (10%, 3 minimum) of outdoor air intakes must be measured to verify that the flow rates are appropriate for the current facility requirements.

LL 87 AND DOB RULES

Common ECMs and RCMs

August 15, 2014 Ellen Ryan & Mike Dipple

NYC – where government goes green TM

COMMON ENERGY CONSERVATION MEASURES (ECMS)

• Lighting renovations – T12 to T8/CFL/LED lamp replacement

– Fixture updates

– Occupancy/vacancy sensor installation

• Steam Trap repair/replacement

• Burner replacement – #6 or #4 fuel oil to dual natural gas/#2

• Boiler Control Optimization – Heat timers

– Automatic control systems

NYC – where government goes green TM

COMMON ENERGY CONSERVATION MEASURES (ECMS)

• Boiler replacement – End-of-life capital equipment

– Usually #6 oil and older than 1975

• Non-functioning pneumatic controls

• High efficiency motor installation

• Variable Frequency Drive (VFD) installation

• CO2 sensor – Outdoor Air controls

• Operations & Maintenance measures

NYC – where government goes green TM

Thank You

Questions?

Michael Dipple Director Energy Efficiency Projects mdipple@dcas.nyc.gov

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