Pinnacle West Capital Investor Relations Material

Pinnacle West Capital Corporation, through its subsidiary, Arizona Public Service Company, provides electricity service to homes and businesses in metropolitan Phoenix. Pinnacle West Capital Corporation is a subsidiary of Pinnacle West Capital Corporation that offers electric service in the State of Arizona. Pinnacle West Capital Corporation was incorporated under the laws of the State of Delaware in 1985. The Company's service area includes most of the urbanized area in Maricopa County, Arizona. APS employs approximately 2,600 full-time equivalent employees who work at various facilities located throughout Arizona. The company is based in Phoenix, Arizona.