The Itaipu hydroelectric power plant, the largest in operation anywhere in the world, is situated on the border between Brazil and Paraguay. The dam is over 7 kilometers long and as high as a 65-storey building, and regulates up to 62,000 meters of water per second, 40 times that of the massive Iguaçu Falls. By 2000, it was supplying over 90% of the energy consumed by Paraguay and 20% of that consumed by Brazil. During its construction, the course of the Paraná River, the seventh biggest river in the world, was diverted, and 50 million tonnes of earth and rock removed. The amount of Holcim concrete used during its construction was 15 times that used in the Channel Tunnel.
Itaipu Hydroelectric Power Plant, Brazil