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NYC Local Law 87 (LL87) - Audits & Retrocommissioning

Did you know that energy use in buildings accounts for roughly 75% of New York City’s annual greenhouse gas emissions? 


To make buildings more energy efficient, Local Law 87 (LL87), the City’s energy auditing and retro-commissioning requirement, was created.


With over 500 energy audits under our belt, Bright Power’s engineering staff has the experience to provide our clients with meaningful building improvements. We strive to make buildings more efficient for owners and more comfortable for tenants. Auditing and retro-commissioning services that we provide always follow the same rigor and high quality standards whether they are submitted for compliance or performed as part of a larger energy management plan.


For Local Law 87, our experts will guide you through the three steps to achieving compliance:


Energy Audit

Our certified engineers and auditors perform a site visit where they evaluate the performance of all the building’s energy-related systems: heat and hot water, lighting and other electrical loads, and the building envelope. They then develop an audit report for you with recommended improvements based on their findings. Learn more



Based on the audit and City guidelines, our qualified retro-commissioning agent identifies maintenance, calibration and operational changes that need to be made to building systems. We’ll also perform the changes for you or re-inspect building systems once changes are made to confirm they meet the City’s requirements. Bright Power then prepares a report verifying that the property is in compliance. Learn more


Energy Efficiency Report

The energy audit report and the retro-commissioning report are submitted to the Department of Buildings to achieve compliance.   


You need to comply with Local Law 87 if…

  • - Your property contains one building larger than 50,000 gross square feet
  • - Two or more buildings are on the same tax lot that together total more than 100,000 gross square feet.
  • - Two or more buildings that together exceed 100,000 gross square feet, held in condominium ownership, are governed by the same board of managers.


Buildings are required to comply with Local Law 87 every ten years, according to the last digit of their tax block number, beginning in the years shown below.


Buildings are required to comply with Local Law 87 every ten years, according to the last digit of their tax block number, as shown below.


Tax block ends in:











Building reports:


2023, etc.

2024, etc.





2027, etc.

2028, etc.

2029, etc.

2030, etc.

2031, etc.

2032, etc.






If the last digit of your tax block number is 4, you’re up! You’ll need to submit an Energy Efficiency Report by December 31, 2014 to comply. The energy auditing and retro-commissioning process can take several months, so give us a call to get started today for 2014 compliance!


Make compliance easy. Call us at 212.803.5868 ext. or email for more information.


What’s next?

You have the audit report, you know what improvements should be made, and now it’s time to make them happen. Bright Power works with a host of different programs to help building owners like you receive grants, rebates and tax credits to implement energy efficiency changes. Learn more