With more than 125 years of history, Pinnacle West Capital Corporation (PNW) is a leading American electric utility provider. The investor-owned holding provides energy and energy-related products throughout the state of Arizona. With over $17 billion in consolidated assets, Pinnacle West derives all of its revenues from the principal subsidiary, Arizona Public Service (APS). Operating the largest nuclear plant in the US, the Palo Verde Generating Station, the company provides retail and wholesale electric services to more than 1.2 million customers. Included to the S&P 500 index, Pinnacle West share price (PNW) is set and traded on the New York Stock Exchange (NYSE).