CBS Evening News | A massive solar project in the Mojave Desert will hook up to the power grid this weekend, and could start supplying electricity to homes by the end of the year

A massive solar project in the Mojave Desert will hook up to the power grid this weekend, and could start supplying electricity to homes by the end of the year. The plant has 170,000 heliostats, each with the capacity to power one home. Ben Tracy reports. Air Date: Sep 13, 2013