© 2009 WGBH Educational Foundation. All Rights Reserved.

Adapted from NOVA: "New Ways to Catch Rays". Third party materials courtesy of David Hicks/Solar Decathlon, Gina Miller/www.nanogirl.com, Greenfuel Technologies, Kaye Evans-Lutterodt/Solar Decathlon, kjkolb, NREL, NREL/Kim Adams, Sandia National Laboratories/Randy Montoya, SCHOTT, Stirling Energy Systems, and United Solar Ovonic.