The company's principal activities are to generate, transmit and distribute electricity to state of Arizona. It also generates, sell and deliver electricity and energy-related products to wholesale and retail customers in the western United States. The company is a wholly owned subsidiary of pinnacle west capital corporation. The company also provides retail electric services to the entire state of Arizona and currently has more than 931,500 customers. The company operates through two segments namely regulated electricity segment and marketing and trading segment.
