Arizona Public Service

Arizona Public Service Company is the largest electric utility in Arizona and the subsidiary of publicly-traded S&P 500 member Pinnacle West Capital Corporation. The utility provides power for nearly 1.2 million customers in 11 of the state’s 15 counties. In 2019, it acknowledged spending millions of dollars to elect Corporation Commission members as part of a dark-money scandal in 2014.

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APS funds fossil fuel front group advertising in Arizona
July 24, 2026
Social media advertisements released this week by fossil fuel advocacy front group Consumer Energy Alliance (CEA) are boosting Arizona Public Service’s (APS) recently announced proposal to convert two units at its retired Cholla Power Plant from coal to methane gas. According to a CEA internal budget document obtained by EPI via public records request, APS...

Kevin Thompson: “For full transparency, I have a client that’s a data center”
June 9, 2026
Kevin Thompson, a commissioner on the Arizona Corporation Commission (ACC), disclosed that he has a data center client during a panel discussion at the annual meeting of the Western Conference of Public Service Commissioners in New Mexico last week. Thompson, who is seeking re-election to the ACC later this year, also operates a consulting business,...

Utilities fund Republican campaigns in pivotal Arizona legislature races
November 4, 2024
Arizona Public Service, Salt River Project, and Southwest Gas have contributed mainly to Republican candidates in several key state legislature races that could decide which party controls the legislative branch, according to state campaign finance records. The utilities have deployed the campaign funds from their corporate profits and Political Action Committees (PACs) as Republicans in...
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