September 04, 2008 September 4, 2008 ROSEMEAD, Calif., September 4, 2008 — The Board of Directors of Edison International (NYSE:EIX) today declared a quarterly common stock dividend of $0.305 per share, payable October 31, 2008, to shareholders of record on September 30, 2008. Additionally, the Board of Directors of Southern California Edison Company today declared quarterly dividends of $1.33725 per share on the Series A preference stock and $1.50 per share on the Series C preference stock. Each of these dividends is payable on October 31, 2008, to shareholders of record on October 3, 2008. Media Relations: Charles Coleman, (626) 302-7982www.edisonnews.com Investor Relations: Scott Cunningham, (626) 302-2540www.edisoninvestor.com # # # Edison International, through its subsidiaries, is a generator and distributor of electric power and an investor in infrastructure and energy assets, including renewable energy. Headquartered in Rosemead, California, Edison International is the parent company of Southern California Edison, the largest electric utility in California, and Edison Mission Group, a competitive power generation business and parent company to Edison Mission Energy and Edison Capital.