PHOENIX — The top elections official in one of the nation’s most pivotal swing counties is suing the Maricopa County governing board over allegations that it’s attempting to gain more ...

The Three Mile Island Unit 1 reactor may restart in 2027, a year earlier than the initial 2028 timeline Constellation ...

THREE MILE ISLAND, Pennsylvania (Reuters) -The former Three Mile Island nuclear power plant in Pennsylvania may restart in ...

Arizona's Coronado Generating Station will convert from ... The utility is part of a joint effort by the state's largest ...

Palo Verde Nuclear Generating Station will mark four decades this year as one of the nation's largest producers. Here's what ...

Sen. Mark Kelly voices the impotency that Congress feels - not just over the Iran bombing, but over attempts to rein in ...

President Donald Trump's administration had major impacts on Arizona water, immigration and public land over the past week.

The Palo Verde Nuclear Generating Station begins producing electricity. The plant, which sits on about 4,000 acres in Tonopah, west of Phoenix, becomes the nation's largest nuclear-power producer.

Facing soaring AI power demand, ComEd wants to dramatically raise deposits on data center projects to discourage speculators and protect grid resources.

U.S. Rep. Yassamin Ansari, D-Arizona, signed on to a resolution that would limit President Donald Trump's power to get involved in the conflict between Israel and Iran, joining a relatively small ...

U.S. Rep. Yassamin Ansari, D-Arizona, signed on to a resolution that would limit President Donald Trump's power to get involved in the conflict between Israel and Iran, joining a relatively small ...

Democratic Sen. Mark Kelly of Arizona says President Trump's decision to strike Iran leaves the U.S. in a "dangerous" moment and he worries it may speed up its efforts to build a nuclear weapon.