Environmental Power Corporation engages in the development, ownership, and operation of renewable energy production facilities in the United States. The company develops renewable energy facilities for the production and commercial application of methane-rich biogas produced from animal, food industry, and other organic wastes. The biogas could be sold to end-users or used to produce pipeline-grade methane, which is referred as renewable natural gas, liquefied natural gas, compressed natural gas, and renewable electrical energy or thermal energy, as well as to produce other useful by-products. Environmental Power Corporation operates three single digester facilities in Wisconsin. The company was founded in 1982 and is headquartered in Tarrytown, New York.