The Nuclear Regulatory Commission (NRC) on July 12 released detailed information about the worn steam generator tubes at the 2,200 MW San Onofre Nuclear Generation Station in California.
The NRC said detection of wear in the tubes was found in almost 15,000 different areas. For Unit 3 alone, over 280 spots were reported to have more than 50 percent of the tube wall worn away. In total, 3,401 of the plant’s almost 40,000 tubes in four steam generators have signs of wear.
Southern California Edison (SCE), an Edison International (NYSE: EIX) company and owner of the plant, in May said costs associated with inspections and repairs to the plant could land between $55 million and $65 million. At the same time, SCE had plugged more than 1,300 tubes.
To see Unit 2’s results, click here.
For Unit 3’s results, click here.
Subscribe to Nuclear Power International magazine