Nuclear energy accounts for about 4% of Brazil's electricity. The nuclear power generation monopoly is owned by Eletronuclear (Eletrobrás Eletronuclear S/A), a wholly owned subsidiary of Eletrobrás. Nuclear energy is produced by two reactors at Angra. It is located at the Central Nuclear Almirante Álvaro Alberto (CNAAA) on the Praia de Itaorna in Angra dos Reis, Rio de Janeiro. It consists of two pressurized water reactors, Angra I, with capacity of 657 MW, connected to the power grid in 1982, and Angra II, with capacity of 1,350 MW, connected in 2000. A third reactor, Angra III, with a projected output of 1,350 MW, is planned to be finished.