On Monday, the moon will briefly pass between the Earth and the sun creating a solar eclipse. For a couple of hours, Arizona residents will be able to watch a rare meteorological event that ...

Add Yahoo as a preferred source to see more of our stories on Google. The US has approved plans to construct one of the nation’s biggest power-producing solar projects. The US Bureau of Land ...

Going solar in Arizona involves more than just mounting panels — APS customers must navigate interconnection rules, understand net billing, and plan for maximum financial return. From submitting ...

Forbes contributors publish independent expert analyses and insights. Robert Rapier is a chemical engineer covering the energy sector. On a recent flight from Los Angeles to Phoenix, I glanced out the ...