Republican lawmakers, state regulators and some utility companies have historically been unfriendly to solar. That opposition is only increasing.

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 ...

As their homes bake under blistering heat, many Arizonans have turned to rooftop solar panels to convert the state’s characteristic sunshine into sellable energy. But in the past year, homeowners ...