New submitter MatthewVD writes "Boing Boing's Maggie Koerth-Baker, author of Before The Lights Go Out, writes that the era of giant hydroelectric projects like the Hoover Dam has passed. But the Department of Energy has identified 5,400 potential sites for small hydro projects of 30 MWs or less. The sites, in states as dry as Kansas, represent a total 18,000 MW of power — enough to increase by 50 percent America's hydro power. Even New York City's East River has pilot projects to produce power from underwater turbines. As we stare down global warming and peak oil, could small hydroelectric power be a key solution?"
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