benchmarking

A Benchmarking Head-Scratcher: Is Older Better?

Patrick Hewlett for Zondits, March 31, 2015 New York City’s Local Law 87 reveals top performers and savings potential—and some surprises. Introduced in 2009, New York City’s Local Law 87 (LL87) requires that all residential, commercial, and municipal buildings exceeding 50,000 square feet undergo an energy audit and retro-commissioning study every 10 years. This legislation […]