New York University replaced and expanded its cogeneration plant to improve energy efficiency, reduce emissions and improve reliability. Vanderweil provided technical and financial analysis, conceptual through detail design construction documents, construction support and on-site engineering, start-up and commissioning with final acceptance. At the end of the project, the plaza was re-landscaped with a green, more inviting, usable, and visibly pleasing space. The existing central utilities plant was expanded to provide electrical power to 30 buildings while also supplying chilled water to 20 buildings and heat to 40 buildings. The repowering of its cogeneration more than doubles its available capacity, while providing standby capacity to newly connected buildings which do not have backup. The new plant capacity has 13.4 MW of gas and steam turbines with 140 MMBtu/hr heating capacity via two new combustion gas turbines and heat recovery steam generators. The 14 electrical substations were added to distribute 4160 V electrical power to 23 new buildings.