FuelCell Energy, Inc. is a publicly traded fuel cell company headquartered in Danbury, Connecticut. It designs, manufactures, operates and services power plants based on molten carbonate fuel cells. The company operates the Gyeonggi Green Energy Fuel cell park, which provides 59 megawatt of electricity plus district heating to a number of customers in South Korea. It also operates a fuel cell park of five 2.8 MW power plants and a rankine cycle turbine bottoming cycle in Bridgeport, Connecticut. Wikipedia