21 places updated September 5, 2013
The U.S. Department of Energy Solar Decathlon challenges collegiate teams to design, build, and operate solar-powered houses that are affordable, energy-efficient, and attractive.
+4
19 places updated February 1, 2012
19 places including Dept of Energy Illinois’s Solar Decathlon 2011 House, Dept of Energy Parsons NS Stevens's Solar Decathlon 2011 House, Dept of Energy Maryland’s Solar Decathlon 2011 House, Dept of Energy Team Belgium’s Solar Decathlon 2011 House
+2