Arizona’s renewable energy standard and tariff rules were repealed on March 4 by the Arizona Corporation Commission, which said the cost to customers was no longer justifiable after “dramatic” changes ...

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

Arizona leaders express support for new nuclear energy projects, aiming for development by 2035. High costs and NIMBYism pose challenges.

Arizona's oversight committee on utilities voted to repeal the state’s long-running renewable energy rules.

The Arizona Corporation Commission has voted to eliminate the Renewable Energy Standard and Tariff (REST) Rules. This ...

A push to raise water and sewer rates at Arizona's Robson Ranch sparked disagreement about the state's residential customer ...

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

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.

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The Arizona Corporation Commission has approved a new way to evaluate utility rate cases that could make proceedings faster and more efficient, but consumer groups fear the change could lead to higher ...

Natural gas is a cost-effective and reliable energy source, especially during peak demand periods. While renewable energy is the long-term goal, natural gas plants provide essential grid stability as ...