June 27, 2008 June 27, 2008 ROSEMEAD, Calif., June 27, 2008 — The Board of Directors of Southern California Edison Company today declared the following dividends: Quarterly dividends of $0.255 per share on the 4.08% series of cumulative preferred stock, $0.265 per share on the 4.24% series of cumulative preferred stock and $0.29875 per share on the 4.78% series of cumulative preferred stock. Each of these dividends is payable on August 31, 2008, to shareholders of record on August 5, 2008. Quarterly dividends of $1.53125 per share on the Series B preference stock and $0.27 per share on the 4.32% series of cumulative preferred stock. Each of these dividends is payable on September 30, 2008, to shareholders of record on September 5, 2008. Media Relations: Charles Coleman, (626) 302-7982www.edisonnews.com Investor Relations: Scott Cunningham, (626) 302-2540www.edisoninvestor.com # # # An Edison International (NYSE:EIX) company, Southern California Edison is the largest electric utility in California, serving 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.