The Hoover Dam lies in the U.S. on the border between Arizona and Nevada impounding the Colorado river. The dam was constructed between 1931 and 1936 during the great depression. Now it has become an example of some of the best engineering in the history of the United States and remains a landmark for all. At the time, the dam cost just $49 million.
The Hoover Dam is the sixth largest in the world at 726.3ft tall and 1,244ft wide covering an area of 3.25 million cubic yards. It generates 4.2 BILLION kWh per year with the following generators: 13 x 130 MW, 2 x 127 MW, 1 x 68.5 MW, 1 x 61.5 MW Francis-type, and 2 x 2.4 MW Pelton-type. The following video gives you a small tour of the Hoover Dam and talks briefly of how the generators work. Now THAT is renewable energy at its best.
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