The start of Diamondbacks spring training means the beginning of free access for fans to watch the team’s workouts.

PHOENIX – Arizona regulators have taken the first step toward potential nuclear energy expansion, opening an inquiry into new development options, including small modular reactors.

Arizona's three largest electric utilities will jointly explore expanded nuclear-power options. A new plant here could be ...

Tucson Electric Power, Arizona Public Service and Salt River Project — say a new nuclear reactor could be operating in the ...

Arizona’s drought conditions are becoming worse after an extremely dry summer, fall and winter. But Salt River Project ...

Arizona’s three biggest utilities have joined forces to assess the feasibility of adding more nuclear generating capacity to ...