20 university teams from around the world have designed and built their ultimate solar dream homes on the National Mall in Washington, DC.
Watch these cool videos showcasing some of the top designs, along with very impressive students:
Team Germany, which won the Solar Decathlon in 2007, is back this year with a solar-panel-covered home that generates enough energy for two houses.
Team Puerto Rico is trying to address the public taboo that solar power is unrealistic. (photo, right: Solar decathlon home, Team Puerto Rico)
Team Alberta from Canada has followed a goal to make a hi-tech house that uses native Canadian materials to give it a cozy, livable feeling.
America.gov produced the videos…