FuelCell Energy, Inc., together with its subsidiaries, manufactures and sells stationary fuel cell and electrolysis platforms that decarbonize power and produce hydrogen. The company provides various configurations and applications of its platform, including on-site power, utility grid support, and microgrid, as well as distributed hydrogen; solid oxide-based electrolysis; solutions for long duration hydrogen-based energy storage and electrolysis technology; and carbon capture, separation, and utilization systems. It also offers technology to produce electricity, heat, clean hydrogen, and water. In addition, the company provides turn-key solutions, including development, engineering, procurement, construction, interconnection, and operation services. It serves various markets, including utilities and independent power producers, data centers and communication, wastewater treatment, government, commercial and hospitality, food and beverage, microgrids, manufacturing, pharmaceutical processing, universities, healthcare facilities, industrial hydrogen, port, oil and gas, wind and solar projects, and hydrogen for mobility and material handling, as well as engineering, procurement, and construction firms. The company primarily operates in the United States, South Korea, Europe, and Canada. FuelCell Energy, Inc. was founded in 1969 and is headquartered in Danbury, Connecticut.