Arizona Public Service (APS) is the largest electric utility in Arizona, serving more than 1.2 million customers across the state. The company was founded in 1886 and is headquartered in Phoenix, Arizona. APS is a subsidiary of Pinnacle West Capital Corporation, a publicly traded company on the New York Stock Exchange. APS generates and distributes electricity to customers in Arizona, and also provides energy efficiency programs and renewable energy options. The company has a diverse portfolio of power generation resources, including natural gas, nuclear, and renewable energy sources like solar and wind. APS is committed to sustainability and has set a goal to provide 100% clean energy to customers by 2050.