PNW

Pinnacle West Capital Corp is an investor‑owned utility holding company whose primary subsidiary, Arizona Public Service, generates, transmits, distributes and retails electricity to residential, commercial and industrial customers across most of Arizona. The firm operates in the regulated electric utilities sector, owning a mix of generation assets that include nuclear (Palo Verde), natural‑gas, coal, oil and solar facilities, as well as extensive transmission and distribution infrastructure. As the largest utility in the state, APS serves roughly 1.4 million customers and is a key provider of reliable power in the region. The company emphasizes a transition to clean energy, targeting 100 percent carbon‑free electricity by 2050 while operating under the oversight of the Arizona Corporation Commission.