Itaipú Dam

Hollow gravity dam on the Alto (Upper) Paraná River at the Brazil-Paraguay border, north of the town of Ciudad del Este, Paraguay. In terms of power output, it is one of the world's largest hydroelectric projects. Its 18 massive turbine generators, located in the powerhouse at the base of the dam, are capable of generating 12,600 megawatts of electricity. Built as a joint venture by