Columbia University

NYC Local Law 87 (LL87) mandates that buildings over 50,000 gross square feet undergo periodic energy audit and retro- commissioning measures, as part of the Greener, Greater Buildings Plan (GGBP). The intent of this law is to inform building owners of their energy consumption through energy audits, which are surveys and analyses of energy use, and retro-commissioning, the process of ensuring correct equipment installation and performance.

After the corrective measures are implemented, an Energy Effciency Report (EER) is filled with the Department of Buildings. Building systems audited and repaired include systems that use energy or impact energy consumption including: building envelope, HVAC systems, conveying systems, domestic hot water systems and electrical/lighting systems.

DM Engineers was retained by Columbia Univeristy to manage the Retrocommissioning Measures (RCM) and Energy conservation Mesures (ECM) program for compliance with New York City Local Law mandates. Our team managed the energy audits, RCM & ECM field implementation, field verification and Department of Buildings (DOB) compliance submission for the phase II and III (on-going) of this campus wide program. The phases of the program encompased 31 buildings in phase II and 10 buildings in phase III and the project team implemented over 2,000 retro-commision measures and energy conservation measures.

The major challege during this program execution is performing the audits and implementation in a campus that is used year round, nontheless, our team manged the work and client expectations.