Corporate America is investing in clean energy at record levels, with tech giants taking the top spots for users of solar.

A local family who owns the land in Valley Center says the project is safe, but some residents worry about fires and ruining ...

Arizona's grid is getting a huge 200 MW Tesla lithium-ion battery energy storage system to support the state's growing energy ...

In addition to doubts about the policies that the Republican and climate change-skeptic president will actually implement, ...