Duke Energy is an electric power holding company in the US, with assets also in Canada and Latin America. It generates and distributes electric power and natural gas in the US, where it has over 57GW of total installed capacity and more than 7.2mn customers. In addition, the firm operates more than 4,000MW of generation in Latin America through its subsidiaries, including Brazilian generator Duke Paranapanema, which has combined installed capacity of 2,307MW. Duke Energy's Latin American portfolio includes operations in Argentina, Brazil, Chile, Ecuador, El Salvador, Guatemala and Peru. The company was originally founded in the early 1900s and is based in Charlotte, North Carolina.