Southern California Edison Completes Tube Inspections in San Onofre Nuclear Generating Station’s Unit 2 Steam Generators

FOR IMMEDIATE RELEASE

Media Contact: Media Relations, (626) 302-2255

Southern California Edison Completes Tube Inspections in
San Onofre Nuclear Generating Station’s Unit 2 Steam Generators

ROSEMEAD, Calif., April 20, 2012 — Southern California Edison (SCE) has informed the Nuclear Regulatory Commission (NRC) that the company has completed additional inspections of the San Onofre Nuclear Generating Station (SONGS) Unit 2 steam generators, based on Unit 3 findings. On April 11, SCE identified wear in two of the 19,454 tubes in the Unit 2 generators that was similar to the type of wear that was previously seen in Unit 3. SCE conducted these inspections with technology specifically designed to identify this type of wear.

“Our number one priority is, and always has been, the health and safety of the public and our employees,” said SCE Senior Vice President and Chief Nuclear Officer Pete Dietrich. “Our commitment remains the same; the utility will only bring the units on line when we and the NRC are satisfied that it is safe to do so.”

Today, SCE also has provided a letter to the NRC to update the regulator on the ongoing Unit 2 steam generator tube inspections and to confirm the actions outlined in the NRC’s Confirmatory Action Letter, which SCE received on March 27. The letter outlines actions SCE must complete at SONGS before seeking permission from the NRC to restart Units 2 and 3.

Unit 2 was taken out of service for a planned outage on Jan. 9. Unit 3 has been shut down since Jan. 31, when it was safely taken off line after station operators detected a leak in one of the unit’s steam generator tubes.

More information is available at www.edison.com/songsupdate.

About Southern California Edison
An Edison International (NYSE:EIX) company, Southern California Edison is one of the nation’s largest electric utilities, serving a population of nearly 14 million via 4.9 million customer accounts in a 50,000-square-mile service area within Central, Coastal and Southern California.

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Jennifer Manfrè
Senior Manager, Media Relations
Southern California Edison
626-302-7964