Building Energy Performance Analysis - Department of Citywide Administrative Services

Department of Citywide Administrative Services


Buildings/Office Space Energy ManagementFleet ManagementPersonnel Services

Energy Supply
Clean Energy Generation
Demand Response and Load Management
Energy-Efficient Operations and Maintenance
Energy Efficiency Retrofit Projects
Energy Training and Strategic Planning
Energy Innovation
Reports and Publications
Career Opportunities
Vendor Opportunities
Email Energy Management

Energy Supply

Clean Energy Generation

Demand Response and Load Management

Energy-Efficient Operations and Maintenance

Energy Efficiency Retrofit Projects

Energy Training and Strategic Planning

Energy Innovation

Reports and Publications

Career Opportunities

Vendor Opportunities

Email Energy Management


Building Energy Performance Analysis

Benchmarking

Each year, DCAS works with City agencies to benchmark the energy performance of approximately 3,000 municipal buildings that are at least 10,000 gross square feet, as per the requirements of Local Law 84 of 2009. To perform the benchmarking process, DCAS analyzes energy and building data using the U.S. EPA Portfolio Manager tool, which allows users to compare the energy performance of their buildings to the national median energy usage of buildings of similar characteristics. DCAS uses energy benchmarking to gain detailed insight into buildings’ energy use and monitor energy performance relative to peers and over time. DCAS also uses the benchmarking results to identify facilities that are operating inefficiently and should be prioritized for energy conservation investments.

On September 1st every year, DCAS submits benchmarking results to the Department of Finance (DOF) for publication. The City’s annual benchmarking report includes source energy use intensity (EUI), total emissions, and Energy Star ratings (as available) for all benchmarked properties. DCAS also provides agency staff with access to agency-specific Portfolio Manager accounts that enable them to track building and portfolio-level performance over time.

Read the latest New York City Government Building Energy Benchmarking Report

Visit Energy Star® Portfolio Manager

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Energy Audits

DCAS performs energy audits for City buildings 50,000 gross square feet or larger, to identify energy savings opportunities and comply with Local Law 87 of 2009. Findings from these audits are summarized in Energy Efficiency Reports (EERs), which DCAS shares with the Department of Buildings (DOB) and the impacted agencies. From FY08 to the end of FY19, DCAS has completed 938 audits and filed a total of 490 EERs with the NYC Department of Buildings.

Read the latest Energy Audits and Retro-commissioning Annual Report

Read DOB Rule 103-07 on Energy Audits and Retro-commissioning of Base Building Systems

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