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U.S. Department of Energy: Wind Energy in America - Slide 1
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U.S. Department of Energy: Wind Energy in America - Slide 2
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U.S. Department of Energy: Wind Energy in America - Slide 3
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U.S. Department of Energy: Wind Energy in America - Slide 4
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U.S. Department of Energy: Wind Energy in America - Slide 5
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U.S. Department of Energy: Wind Energy in America - Slide 6