Caithness Long Island, LLC commenced commercial operation of its 350 MW natural gas fired power generating facility, the Caithness Long Island Energy Center (CLIEC) on August 1, 2009. It was the first major baseload power plant to be built on Long Island in over thirty years.

The Carty Generating Station is a 450 megawatt, combined-cycle natural gas-fueled electric generating power plant, and includes a not-yet-constructed 50 megawatt solar PV electric power generating unit.