Environmental groups are sounding the alarm as Arizona pulls back on renewable energy.

The Springerville closure is the latest in a series of coal plants to close. Four others in the Mountain West were shut down ...

Energy regulators in Arizona have given the go-ahead to convert several units at two coal-fired power plants in the state to burn natural gas.

Arizona regulators just approved converting two major coal plants to natural gas.

Arizona Public Service (APS) plans to build the Desert Sun Power Plant, a new natural gas facility west of Gila Bend, to address an "unprecedented" surge in energy demand, driven largely by new data ...

Pollution from power plants in the United States increased significantly in 2025, according to an analysis of Environmental ...

Invenergy, which calls itself North America’s largest privately held independent power producer and energy infrastructure innovator, said it has an agreement with a pipeline operator regarding ...

Projected spike in electricity demands push Arizona toward nuclear energy solutions.

A Chicago-based power producer is looking to build up to three natural gas plants in Arizona, eyeing locations in Maricopa and Yuma counties.

Capital Power extended an agreement to offer summer capacity from its Arlington power station in Arizona to a utility, providing the Canadian company 13 years of contracted revenue and positioning it ...

The proliferation of data centers in Arizona raises concerns about the strain on the state's water and power resources. Existing and planned data centers in Maricopa County could nearly double the ...