Turkey has plans to heat an entire town with pistachio shells. Why can't that happen in California?
It's being used to power laptops, grind grain for beer, and churn butter.
Plunging prices for solar panels and generous subsidies for fuel cells are prompting companies, universities, and public facilities to go green.
Stanford scientists say they've figured out how, and now the challenge will be to make it cheap enough to do on a large scale.
A few years, at least. But the future is bright.
Former Michigan Governor Jennifer Granholm wants to see states and metro areas compete for green energy funding.
Nearly every square meter of rooftop in Cambridge, Massachusetts, has now been evaluated for its suitability to host solar panels.
English community takes collective ownership of solar farm.