"While Washington may be tilting toward fossil fuels these days, support in the states is on the rise -- and that's where much energy policy is conducted.

Twenty-nine states have adopted standards that require utilities to use a certain amount of renewable energy, according to the National Conference of State Legislatures.

' "We've seen very substantial bipartisan support for renewable energy," said Sunrun's Fenster. "There is a lot states can do here." '

By Matt Egan, CNN Money.