Local Law 87 (Energy Auditing & Retro-Commissioning Buildings Over 50,000 sf):

Energy Audits for all buildings over 50,000 sqft will identify energy savings opportunities and reduce energy and operating costs while increasing property values.
Retro Commissioning is a systematic tuning and adjustment of building equipment to increase performance based on results of the energy audit
Energy Audits
Through a holistic, whole building approach,...