Arizona Attorney General Kris Mayes is challenging utility regulators' recent approval of an electricity service agreement between Project Blue developers and Tucson Electric Power. Mayes said the ...

Two major solar farms in Cochise County will start supplying customers of Tucson Electric Power Co. with clean energy by the end of next year, after state regulators approved power-supply agreements ...

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ReElement Technologies has entered into a partnership with Transition Equity Partners (TEP) to boost global rare earth refining capacity and strengthen critical mineral supply chains in the US. Under ...

Backed by TEP, the Marion facility in Indiana is expected to scale to more than 10,000tpa of refined critical minerals. Credit: BJP7images/Shutterstock.com. ReElement Technologies has entered into a ...