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 power plants, a tri-generation distributed hydrogen configuration that generates electricity, heat, and hydrogen for commercial, industrial, government, and utility customers; and fuel cell carbon capture solution for coal or gas-fired power plants. It also develops solid oxide fuel cells for adjacent sub-megawatt applications to the markets for megawatt-class SureSource power plants, as well as energy storage applications. The company 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. It primarily operates in the United States, South Korea, England, Germany, Canada, and Spain. FuelCell Energy, Inc. was founded in 1969 and is headquartered in Danbury, Connecticut.