Community resources NYC

The city's uniquely high density, encouraged by much of it being surrounded by water, facilitates the highest rate of mass transit use in the United States. New York is one of the most energy efficient cities in the United States as a result. Gasoline consumption in New York is at the rate the national average was in the 1920s. The city's mass transit system, multifamily housing, mixed neighborhoods and the fact that greenfield land is no longer available to development, make building in New York very energy efficient. New York City has a larger population than all but eleven states, and consumes less energy per-capita than any. The average New Yorker consumes a little more than half of the electricity of someone who lives in Chicago and nearly one-quarter the electricity consumed by someone who lives in Dallas.

Nevertheless, New York faces growing energy demands and limited space. The city has introduced a series of environmental policies since the 1990s to address these problems. Detailed measures included switching more than 11,000 traffic lights and pedestrian signals in the city to new energy-efficient light-emitting diodes that use 90% less energy than conventional fixtures. The city replaced 149,000 "cobra head" street lights with new energy-efficient designs by 2008. Over 180,000 inefficient refrigerators in public housing projects have been replaced with new ones that use a quarter of the power of the old ones. By law, the city government can purchase only the most efficient cars, air-conditioners and copy machines. The electricity used to power the Statue of Liberty, Ellis Island and 22 other federal buildings in New York City, an annual electricity demand of roughly 27 million kilowatt hours, is provided by wind power.

New York City is home to several clean energy projects. Two attempts to provide electricity to Roosevelt Island by installing underwater turbines in the East River failed when the turbine blades were torn off by currents. An improved turbine design proved to be successful and on January 23, 2012 FERC issued a 10-year pilot commercial license to Verdant Power's RITE Project – the first commercial license for tidal power in the United States. Under the license, Verdant Power expects to generate up to 1 megawatt after a staged installation of up to 30 turbines. Planning is also underway to construct windmills on a hill in the former Fresh Kills Landfill. The wind energy project would power 5,000 homes on Staten Island.