Solar Decathlon 2011
Middlebury College house’s solar array combines solar panels with a solar hot water heater on the roof of their entry in the U.S. Department of Energy Solar Decathlon 2011 in Washington, D.C., Monday, Sept. 26, 2011. (Credit: Stefano Paltera/U.S. Department of Energy Solar Decathlon)
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Posted by Nicholas on October 7, 2012

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