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 offers SureSource product line based on carbonate fuel cell technology in various configurations, including on-site power, utility grid support, distributed hydrogen, and micro-grid, as well as multi-megawatt applications; and SureSource Recovery power plants for natural gas pipeline applications. It also provides SureSource Capture system that separates carbon dioxide from the flue gases of natural gas, biomass, or coal-fired power plants, as well as industrial facilities; and SOFC/SOEC and Energy Storage, a solution for energy storage using solid oxide technology. The company's SureSource power plants generate electricity and usable heat. It serves various markets, such as utilities and independent power producers, industrial and process applications, education and health care, data centers and communication, wastewater treatment, government, and commercial and hospitality. The company primarily operates in the United States, South Korea, England, and Germany. FuelCell Energy, Inc. was founded in 1969 and is headquartered in Danbury, Connecticut.