When the threat of wildfires forced power shutoffs in Calistoga, California, it meant firing up dirty diesel generators.

FOR RESIDENTS OF THIS QUAINT tourist town on the northern edge of Napa Valley, the threat of wildfire is seldom out of mind.

(AP) — For residents of this quaint tourist town on the northern edge of Napa Valley ... a first-of-its-kind system that combines two clean-energy technologies — hydrogen fuel cells and ...

More than $14 billion in clean energy investments in the U.S. have been canceled or delayed this year, according to an ...