The new cogeneration facility at Vornado’s One Penn Plaza, one of the ten largest commercial office buildings in New York City, was recently unveiled to the public as part of an ongoing program of sustainable upgrades across Vornado Realty Trust’s 22 million-sq-ft portfolio in the city. The 6.2-megawatt cogeneration plant at One Penn Plaza is the largest cogeneration facility in a commercial office building in New York City, supplying 50% of electricity usage for the building as well as reducing its greenhouse gas emissions and carbon footprint by 40%.