The Solar Decathlon Comes to Irvine

Walls that grow food, movable rooms and walkways that can heat your home are just a few of the hi-tech designs on display right now at the City of Irvine’s Solar Decathalon. It’s a contest to showcase ideas for solar-powered houses sponsored by the Department of Energy—the first time it’s been held outside of Washington. Producer Frances Anderton, host of KCRW’s program 'DnA: Design & Architecture,' reports.