Bethpage Energy Center is a power station in Bethpage, New York, United States, consisting of two combined cycle plants opened in 1989 and 2005, and one gas turbine peaking plant opened in 2002. The original plant was commissioned by Grumman Aerospace for its Bethpage complex because it was deemed more cost-effective than purchasing power from electric utilities. It was acquired by Calpine in 1998, which expanded the facility with two more plants.