FuelCell Energy Inc is a fuel-cell power company. FuelCell designs manufactures, sells, installs, operates, and services fuel-cell products, which efficiently convert chemical energy in fuels into electricity through a series of chemical reactions. It serves various industries such as Industrial, Wastewater treatment, Commercial and Hospitality, Data centers and Communications, Education and Healthcare, and others. Geographically, the company generates a majority of its revenue from the United States followed by South Korea.FuelCell Energy Inc is an integrated fuel cell company. It designs, manufactures, sells, installs, operates and services ultra-clean, efficient stationary fuel cell power plants for distributed power generation.