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) 2
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
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 4
PlaNYC: NYC Sustainability Roadmap 9 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
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 19% reduction since 2006 (through FY12)* LL84 (Benchmarking) LL87 (Audits & Retrofits) Clean Resources Transportation Training and O&M 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 335 Energy Audits completed, 36 underway 190 Building Retrofits completed,65 underway Exploring costeffective alternatives to traditional energy auditing.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 618 Electric vehicles and plugin 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 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 * Source: Inventory of NYC Greenhouse Gas Emissions (Dec 2013) 7
Municipal GHG Footprint 2012 City Government GHG Emissions by Sector Sectors not considered 18% Streetlights 2% Buildings Wastewater Treatment Plants 17% 62% Sectors considered 82% Transportation (12%) Solid Waste (5%) Water Supply (.5%) Other (.3%) 8
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. 9
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 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 ACE projects underway at 500+ buildings Opportunity: Expand to more agencies and projects; fund incremental cost of energy efficiency improvements on capital replacement projects. 10
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: 190 retrofits since 2009 with GHG reductions of nearly 28 thousand MT CO 2 e Typical ECMs include: Lighting and sensors HVAC system upgrades Efficient Motors Building Management Systems Lighting upgrade at Parks Recreation Center 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. 11
3. Expand Operations & Maintenance DCAS manages a number of programs to support Agency energy management staff in the efficient operation of their facilities, including: 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. 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. 12
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 DEP s Port Richmond Wastewater Treatment Plant 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 13
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. 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 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. 14
Thank You Questions? Ellen Ryan Deputy Assistant Commissioner eryan@dcas.nyc.gov 15
Benchmarking August 15, 2014 Ellen Ryan & Mike Dipple
LOCAL LAW 84: BENCHMARKING Overview The City completed energy benchmarking of all City-owned buildings over 10,000 square feet in May 10, 11, 12, 13 & 14 Goals 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 Status 3,097 buildings in EPA Portfolio Manager: 1,426 schools 1,671 other buildings Log-ins available for all agencies to access their data
BENCHMARKING
Retro-Commissioning and Retrofit August 15, 2014 Ellen Ryan & Mike Dipple
LOCAL LAW 87: ENERGY AUDITS AND RETRO-COMMISSIONING Overview Local Law requires ASHRAE Level II Energy Audits and specific retro-commissioning process Goals 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 Status 146 energy audits and 135 RCx audits 189 Energy Efficiency Reports Plan to do ~100 EERs per year 272 RCMs completed in 94 facilities
PLANNING PROCESS DEM is targeting City facilities with the most opportunity for improvement in order to achieve the most energy savings with limited resources. Audits & Retrofits Evaluate benchmark scores Collaborate with Agencies Final Priority List Audits Retro-CX Retrofits Benchmarking Retro-com Energy Savings Operations & Maintenance
LL 87 AND DOB RULES 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 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.
Common ECMs and RCMs August 15, 2014 Ellen Ryan & Mike Dipple
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
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
Thank You Questions? Michael Dipple Director Energy Efficiency Projects mdipple@dcas.nyc.gov 27