December 03, 2007 December 3, 2007 ROSEMEAD, Calif., Dec. 3, 2007 – The Southern California Edison (SCE) board of directors has elected Ross Ridenoure vice president. Ridenoure will oversee operations and regulatory affairs at the company’s San Onofre Nuclear Generating Station, Southern California’s largest power source. Ridenoure joins SCE from the Omaha Public Power District where he was the vice president and chief nuclear officer with overall responsibility for the Fort Calhoun Nuclear Station. Prior to joining the Omaha Public Power District, Ridenoure served on nuclear powered submarines for eight years in the U.S. Navy’s nuclear power program. He recently retired from the Navy after more than 29 years of active and reserve service. His external affiliations include serving as chairman of the board of directors for the Utilities Services Alliance, being a member of the Institute of Nuclear Power Operations executive advisory group and being a member of the SCE’s nuclear oversight board. Additionally, he has served as a nuclear operations instructor for Illinois Power and for the Westinghouse Electric Company, a leading nuclear power plant manufacturer. Ridenoure holds undergraduate degrees in sociology and nuclear engineering technology from Excelsior College and an MBA from the University of Nebraska. Media Contact: Gil Alexander, (626) 302-2255www.edisonnews.comInvestor Relations Contact: Scott Cunningham, (626) 302-2540www.edisoninvestor.com # # # An Edison International (NYSE:EIX) company, Southern California Edison is the largest electric utility in California and serves a population of more than 13 million via 4.8 million customer accounts in a 50,000-square-mile service area within central, coastal and Southern California.