It's all relative. From Wikipedia[1]: In 2013 the plant generated a record 98.6 TWh, supplying approximately 75% of the electricity consumed by Paragu

It's all relative. From Wikipedia[1]: In 2013 the plant generated a record 98.6 TWh, supplying approximately 75% of the electricity consumed by Paraguay and 17% of that consumed by Brazil. I'm sure that most of the citizens of Paraguay and Brazil will gladly accept this inexpensive hydro power, even at the loss of a few flooded canyons. It's nice to sit in ivory towers and criticize. In the real world, many many people's lives are made much easier and more productive by harnessing this inexpensive hydro power. You want to solve some real problems in Brazil, figure out how to stop the destruction of the Amazon rain forest. That, there, is a world scale tragedy. Not so the beautiful Itaipu Dam, which I've toured, and which helps so many Brazilians. [1] https://en.wikipedia.org/wiki/Itaipu_Dam https://en.wikipedia.org/wiki/Itaipu_Dam