Each week our friends at Inhabitat recap the week's most interesting green developments and clean tech news for us -- it's the Week in Green.
This week an incredible crop of sun-powered prefabricated houses popped up in Washington DC for the 2011 Solar Decathlon, and Inhabitat was on the scene to bring you exclusive coverage of this year's stunning homes! We took a look at all 19 of this year's ultra-efficient projects, we rounded up
