In the nation's capital, a village powered by the sun

October 16, 2007, 2:17 AM PST | Length: 285

The Solar Decathlon, a competition among 20 universities to build the , opened last week at the National Mall in Washington. CNET News.com's Martin LaMonica talks with students, government officials and advisers about the market viability of solar energy, as well as the secrets to winning.