Age of oldest reactor on site based on date operating license issued.

Japan's nuclear plants faced global scrutiny after the devastating 2011 tsunami triggered by a 9.0 magnitude earthquake.

Arizona's electric utilities are planning for more nuclear power as part of a new look for this energy source and the ...

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

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

Arizona already has one of the largest nuclear power plants in the nation and more might be coming — though possibly in smaller form and years down the road. In an unusual joint announcement on ...