Furnas Centrais Elétricas: Investments planned to meet future demand September 9, 2014 | TSO Focus Furnas Centrais Elétricas (Furnas) came into being in 1957, to build and operate Brazil's first large-scale hydroelectric power plant, the Furnas Hydroelectric Plant. This content is available to only paying subscribers. Username or E-mail Password Remember Me Forgot Password