May 21, 2008 May 21, 2008 ROSEMEAD, Calif., May 21, 2008 — Edison International (NYSE: EIX) will present at the Deutsche Bank Energy and Utilities Conference on Wednesday, May 28, 2008. The presentation will be available via live webcast, with a replay available for approximately three months. Subject:Edison International at Deutsche Bank Energy and Utilities Conference Speaker:Tom McDaniel, Executive Vice President, Chief Financial Officer and Treasurer When: Wednesday, May 28, 2008 Time: 2:50 p.m. (Eastern Daylight Time) Webcast:Edison International corporate web site: www.edison.com. Select “Investor Relations” and then “Webcasts & Presentations” 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.