Solar efficient building entered in the Solar Decathlon

Solar efficient building entered in the Solar Decathlon
Solar efficient building entered in the Solar Decathlon on the Mall in Washington DC. The south sides were always optimized for the solar roof features as in this entrant, generally encompassing the whole roof on a southern slant. There were lines for all the buildings that were open and tour guides for all of them.
Shot with a Nikon Coolpix 4300


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