December 13, 2007 December 13, 2007 Southern California Edison Company declares preferred stock dividends ROSEMEAD, Calif., December 13, 2007 — The Board of Directors of Edison International (NYSE: EIX) today declared a quarterly common stock dividend of $0.305 per share, payable January 31, 2008, to shareholders of record on December 31, 2007. This action increases the quarterly per-share dividend from $0.29 to $0.305, and the annual dividend from $1.16 per share to $1.22 per share. “This dividend increase reflects our confidence in the outlook for growth of our company,” said Edison International Chairman and CEO John E. Bryson. “We continue to focus on balancing dividends with the investments needed to strengthen California’s electricity infrastructure and expand our renewable energy business.” Additionally, the Board of Directors of Southern California Edison Company (SCE) 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 January 31, 2008, to shareholders of record on January 4, 2008. SCE today also declared 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 February 29, 2008, to shareholders of record on February 5, 2008. In addition, SCE declared quarterly dividends of $0.27 per share on the 4.32% series of cumulative preferred stock, and $1.53125 per share on the Series B preference stock. Each of these dividends is payable March 31, 2008, to shareholders of record on March 5, 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.