Lighting in non-residential buildings accounts for almost 18 percent of energy use and greenhouse gas emissions in New York City buildings. Dramatic improvements in lighting technology over the past two decades have made it feasible to significantly reduce energy consumption by installing more efficient lighting systems that can yield significant cost savings.

Additionally, many buildings depend on a single meter to monitor electricity consumption, and as such, bill non-residential tenants a standard rate regardless of the tenant's actual consumption. Individual tenants would likely reduce their energy consumption if energy use information were made available to them regularly. Local Law 88 of 2009 (LL88), part of the Greener, Greater Buildings Plan (GGBP), brings together requirements for both lighting upgrades and sub-metering that will help buildings achieve significant energy savings. Please review this section to learn more about LL88, how to comply, and where to get help.