Arizona Public Service

Arizona Public Service (APS) is the largest electric utility in Arizona, United States, and the principal subsidiary of publicly traded S&P 500 member Pinnacle West Capital Corporation, which in turn had been formerly named AZP Group, when Arizona Public Service reorganized as that holding company in 1985.


Arizona Public Service (APS) is the largest electric utility in Arizona, United States, and the principal subsidiary of publicly traded S&P 500 member Pinnacle West Capital Corporation, which in turn had been formerly named AZP Group, when Arizona Public Service reorganized as that holding company in 1985.
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