Pinnacle West and their affiliates have provided energy and energy-related products to people and businesses throughout Arizona. Based in Phoenix.Pinnacle West Capital's largest affiliate, Arizona Public Service (APS), generates, sells and delivers electricity and energy-related products and services. APS serves customers in 11 of Arizona's 15 counties, and is the operator and co-owner of the Palo Verde Nuclear Generating Station® - a primary source of electricity for the Southwest.
Pinnacle West Capital's other affiliates include SunCor Development Company, a developer of residential, commercial and industrial real estate; APS Energy Services, a retail energy service provider; and El Dorado Investment Company, a venture capital and investment firm.
