Arizona Public Service (APS) — the largest electric utility in Arizona and the principal subsidiary of publicly-traded S&P 500 member Pinnacle West Capital Corporation— uses a balanced energy mix which is nearly 50% carbon-free.

With headquarters in Phoenix, Arizona, APS is the Southwest’s foremost producer of clean, safe and reliable electricity. The company is also a proven leader in introducing technology and services that offer customers choice and control over their energy consumption.