WASHINGTON, D.C. WASHINGTON, D.C. The National Association of Home Builders (NAHB) is proud to announce its sponsorship of the U.S. Department of Energy Solar Decathlon 2011, an award-winning program that challenges collegiate teams to design, build and operate solar-powered houses that are cost-effective, energy-efficient and attractive. This year’s Solar Decathlon will take place on the National Mall’s West Potomac Park in Washington, D.C., from Sept. 23 through Oct. 2, 2011.
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