Rio Paranapanema Energia S.A. generates and sells electricity in Brazil. It controls and operates eight hydroelectric power plants on the Rio Paranapanema; and two small hydroelectric plants located on the Rio Sapucaí that have an installed capacity of 2,297.76 megawatts. The company was formerly known as Duke Energy International, Geração Paranapanema S.A. and changed its name to Rio Paranapanema Energia S.A. in January 2017. The company was founded in 1999 and is headquartered in Sao Paulo, Brazil. Rio Paranapanema Energia S.A. is a subsidiary of Rio Paranapanema Participações S.A.