Incorporated in 1909, Southern California Edison is a subsidiary of Edison International, a large public utility holding company. Southern California Edison is one of the largest utility companies in California. As of 2015, it distributes power to more than 14 million people in central, coastal and southern California.
Southern California Edison generates power through the company's stakes in nuclear, hydroelectric and fossil-fueled power plants. Southern California Edison's distribution system includes over 53,000 line miles of overhead lines, 38,000 line miles of underground lines and approximately 800 distribution substations, allowing it to service more than 50,000 square miles of Southern California.