Hydropower: A dam good energy source

Las Vegas Sun: Hydropower, derived from falling or running water, is the oldest renewable energy technology in existence and the United States’ largest source of renewable electricity. Last year, hydropower accounted for about 6 percent of total U.S. electricity generation and 52 percent of generation from all renewables. But it could produce even more. Only 3 percent of the 80,000 dams in the United States make electricity. Most were constructed for irrigation and flood control.

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