English: This aerial photo shows the public touring 20 solar-powered houses displayed on the National Mall in Washington, D.C., for Solar Decathlon 2009.
Date
Source
This photo was uploaded to the National Renewable Energy Laboratory (NREL) photo archives directly from Richard King's camera
Author
Photo taken by Richard King, Director of the U.S. Department of Energy Solar Decathlon
{{Information |Description={{en|1=This aerial photo shows the public touring 20 solar-powered houses displayed on the National Mall in Washington, D.C., for Solar Decathlon 2009.}} |Source=This photo was uploaded to the National Renewable Energy Laborator
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