The U.S. Department of Energy Solar Decathlon challenges 20 student teams to design and build affordable, attractive, and energy-efficient solar-powered houses.
Thanks to presenters & attendees at #IBS2011 session "The New Class of Affordable Solar Housing" #SD2011:
Even rain doesn't stop the crowds visiting #Solar09! Last chance to see these amazing homes this weekend!
The crowds at #solar09 have been great all week! Cant make it? Check out our virtual tours - http://bit.ly/YfSIm
Meltwater House during the #solar09 lighting contest last night.
Another great #solar09 night shot- this time of Puerto Rico's CASH house. Have photos? Share with us!
Check out this awesome night shot of @lumenhaus 's #solar09 home!
Check out Team Germany setting solar panels on their house @ the National Mall!
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