The new CEO of Arizona's largest electric utility has apologized for a faulty bill calculator that was supposed to help customers find the cheapest rate plan but instead steered 10,000 of them to higher-priced options.
Arizona Public Service Chief Executive Officer Jeff Guldner told frustrated state utility regulators Wednesday the company fell short.
APS executives pledged to refund customers the amount they overpaid plus an additional $25 for the inconvenience.
The billing error has incensed several members of the elected Arizona Corporation Commission, which regulates investor-owned utilities such as APS.
