About Pinnacle West Capital

Pinnacle West Capital Corporation is a holding company that primarily operates through its principal subsidiary, Arizona Public Service Company (APS), a vertically integrated electric utility company that generates, transmits, and distributes electricity to retail customers in Arizona. APS provides electricity to approximately 1.3 million retail customers through a diverse mix of coal, nuclear, natural gas, and renewable energy sources. As a leading utility company in the southwestern United States, Pinnacle West plays a critical role in meeting the region's growing energy demands.