The third largest electric company in Luzon was known as Angeles Light and Power Plant when it formally started operating in July 10, 1923.  The company has since survived a war, a fire and a major volcanic eruption.

The company came to be known as Angeles Electric Corporation (AEC) when it was incorporated and registered with the Securities and Exchange Commission in 1959. Today, after more than 90 years in operation, AEC continues to move forward and remain at par with industry leaders.

Angeles Electric Corporation holds the distinction of being the first electric utility company to achieve 100% electrification of all areas within its franchise coverage.  This happened in 1969 with the conversion of distribution voltage from 2,400v to 13,800v that enabled the company to extend its power lines to the remotest barangay of Angeles City.