Adding powerhouses to the 54,000 dams in the United States not currently equipped to generate power could produce up to 12.6 GW of new electricity-generating capacity, the US Department of Energy's Oak Ridge National Laboratory said in April. Energy Secretary Steven Chu and Interior Secretary Ken Salazar also announced that they will make $26.6 million in federal funding available for research and development of hydro power technologies. About 3 GW of the 12.6 GW of untapped capacity is at dams that the US Army Corps of Engineers controls.
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