FuelCell Energy, Inc., together with its subsidiaries, designs, manufactures, sells, installs, operates, and services stationary fuel cell power plants for distributed power generation. The company is also involved in the development, design, production, construction, and servicing of fuel cell products under the Direct FuelCell name. Its power plants electrochemically produce electricity and heat using various fuels, including natural gas, biogas, methanol, diesel, coal gas, coal mine methane, and propane. The company serves utilities, independent power producers, and governments; and education and healthcare, gas transmission, industrial and data centers, commercial and hospitality, oil production and refining, wastewater treatment, food and beverage, agriculture, and landfill gas sectors. It has an installed base and backlog of approximately 300 megawatts. The company operates in the United States, South Korea, England, Germany, Canada, and Spain. It has strategic alliances with NRG Energy; POSCO Energy Co., Ltd.; The Fraunhofer Institute for Ceramic Technologies and Systems; and E.ON Connecting Energies GmbH. The company was founded in 1969 and is headquartered in Danbury, Connecticut.