CPS Energy is the nation?s largest municipally owned energy utility providing both natural gas and electric service. Serving more than 840,750 electric customers and 352,585 natural gas customers in and around San Antonio, the nation?s seventh largest city, CPS Energy is committed to providing clean, safe, reliable and affordable energy in a manner that protects and enhances the environment and quality of life for our community. CPS Energy is among the top public power wind energy buyers in the nation and number one in Texas for solar generation.