ROSEMEAD, Calif.--(BUSINESS WIRE)-- Southern California Edison (SCE) has submitted its response to the Nuclear Regulatory Commission’s (NRC) Confirmatory Action Letter, along with its restart plan for Unit 2 of its San Onofre Nuclear Generating Station. The response, the restart plan and supporting analyses can be read at www.SONGScommunity.com. The unit cannot be restarted until all plans have been approved by the NRC.
“Safety is our top priority, and after conducting more than 170,000 inspections to understand and prevent the problem, and confirming the corrective actions we have taken to solve the problem with the top experts from around the world, we have concluded that Unit 2 at San Onofre can be operated safely and within industry norms,” said Ron Litzinger, president of SCE. “When implemented, this plan will get San Onofre Unit 2 back to providing reliable and clean energy to Southern Californians.”
The response and restart plans are being submitted simultaneously to provide the NRC with all the relevant information needed to evaluate the full spectrum of repairs, corrective actions and additional safety measures proposed for restart and safe operations at the plant. Unit 3 will remain offline while the utility continues to study the potential solutions that are unique to that unit.
The response to the NRC covers the causes of the tube wear, repairs and corrective actions required for the Unit 2 steam generators, actions to prevent the extensive tube-to-tube wear observed in Unit 3, and inspection and safe operation protocols.
The restart plan covers the above repairs, corrective actions and operating parameters, and also includes additional monitoring, detection and response activities. Three independent experts in steam generators have performed analyses that validate the safety of the restart and operations plans.
Proposed additional monitoring, detection and response activities include:
SCE anticipates discussing its Confirmatory Action Letter response with the NRC in a public format.
Unit 2 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 small leak in a steam generator tube. Unit 3 remains safely shut down for continued inspections, analysis and testing.
The San Onofre plant is jointly owned by SCE (78.21 percent), San Diego Gas & Electric (20 percent) and the city of Riverside (1.79 percent).
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.
Southern California Edison
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Source: Southern California Edison