President Trump and Taiwan Semiconductor plan a huge expansion of the company's complex in Phoenix. How will the firm and ...

An anti-nuclear group is planning a protest at Tucson Electric Power, following word that three utilities might pursue a new reactor in Arizona.

As Arizona’s power needs grew the state began utilizing natural gas plants in the mid-nineties. During that time, nuclear power fell from a peak of 40% in 1995 to 28% where it is today.

Power was out around Arizona on Friday due to the rainy weather. The Arizona Public Service Co., on its website, reported seven outages in metro Phoenix with 468 customers affected, four outages ...