July 06, 2010 Media Contact: Charles Coleman, (626) 302-7982 Investor Relations: Scott Cunningham, (626) 302-2540 WHAT: Second Quarter 2010 Financial Results WHEN: Thursday, August 5, 2010 TIME: 8:00 a.m. (Pacific Daylight Time) NUMBERS: 1-800-369-2198 – for callers in the United States1-773-756-4618 – for international callers PASSCODE: “Edison” WEB SITE: www.edison.com In addition to the live simulcast, telephone replays will be available through Thursday, Aug. 12, 2010, at the following numbers: 1-866-491-2943 – for callers in the United States 1-203-369-1729 – for international callers Passcode: 80709 About Edison InternationalEdison International (NYSE:EIX), 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, Calif., Edison International is the parent company of Southern California Edison, one of the nation’s largest electric utilities, and Edison Mission Group, a competitive power generation business and parent company to Edison Mission Energy and Edison Capital. # # # Edison International to Hold Conference Call On Second Quarter 2010 Financial Results