APR: your source for nuclear news and analysis since April 16, 2010

Saturday, February 2, 2013

SCE provides response to NRC questions

Below is a press release from Southern California Edison, courtesy Maureen Brown, which covers the latest developments in the issue of the San Onofre Nuclear Generating Station ("SONGS.")


Media Contact: Media Relations, (626) 302-2255
Southern California Edison Provides Responses to NRC Technical Questions
ROSEMEAD, Calif., Feb. 1, 2013 — Southern California Edison (SCE) has begun sharing its technical responses to requests for additional information from the Nuclear Regulatory Commission (NRC) as part of the ongoing thorough review of SCE’s repair, corrective actions and restart proposal for Unit 2 of the San Onofre Nuclear Generating Station.

“We are very confident in our safe restart plan for Unit 2,” said Pete Dietrich, senior vice president and chief nuclear officer “This technical question and answer process is an important part of safety-based technical solutions in the nuclear industry, and it strengthens our ability to communicate the safety principles and proven industry operating experience that the plan was built on.”

The responses will be posted at www.SONGScommunity.com as they are available.

SCE’s restart analyses includes evaluations from independent international experts who completed more than 170,000 inspections to understand the tube wear issues and confirm the effectiveness of corrective actions. SCE’s proposal includes preventive tube plugging and operating Unit 2 at 70 percent power for a five-month period.

San Onofre is the largest source of baseload generation and voltage support in the region and is a critical asset in meeting California’s clean energy needs. Both units at San Onofre are currently safely shut down. Unit 2 remains shut down since it was taken out of service Jan. 9, 2012, for a planned outage. Unit 3 was safely taken offline Jan. 31, 2012, after station operators detected a leak in a steam generator tube.

More information is available at www.edison.com/SONGSupdate and at www.SONGScommunity.com. San Onofre is jointly owned by SCE (78.21 percent), San Diego Gas & Electric (20 percent) and the city of Riverside (1.79 percent). Follow us on Twitter (www.twitter.com/SCE) and like us on Facebook (www.facebook.com/SCE).

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.



APR notes:

A great deal of information has very recently been made available on this issue at the NRC's website as well.  Click here to access this newly created page, covering presentations that will be made at an upcoming meeting.

To see the SONGSCOMMUNITY.COM page covering the Confirmatory Action Letter, responses and supporting information, and NRC Requests for Additional Information, click here.


Background information on Steam Generators.

Previous and popular posts on Atomic Power Review have covered the design and construction of steam generators as a way of providing supporting information to the general public on the situation ongoing at San Onofre.

Click here to read about what Steam Generators are and how they're designed and built.

Click here to read a guest post here at APR from Meredith Angwin, covering her days of Steam Generator research and EPRI.

Click here to see a previous APR post covering the NRC's agreement that design changes to the replacement units at San Onofre did comply with 10CFR50.59 requirements.  Includes links to Confirmatory Action Letter and full NRC report.


10:30 AM Eastern 2/2/2013

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