Category Archives: Steam Generator

San Onofre Unit 2 steam generator: workers begin plugging tubes

Workers at San Onofre nuclear plant have begun plugging tubes in Unit 2 steam generators, Southern California Edison (SCE) said Wednesday, February 15, 2012. Both [Unit 2 and Unit 3] reactors are currently shut to address problems with the steam … Continue reading

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Edison may be saving money with San Onofre shut down

Southern California Edison (SCE) may be saving money with San Onofre shut down, says nuclear power expert, San Diego State University Professor Murray Jennex. They could be losing up to a million dollars a day in lost power to customers. … Continue reading

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Cause of steam generator problems at San Onofre

The word from insiders at the [San Onofre nuclear] plant is that the problem stems from [steam generator] pipes being configured in such a way as to have unintentionally created a situation where water passes through the tubes at such … Continue reading

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Shutdown has no impact on wholesale energy prices

California has so much excess electricity-generating capacity, the shutdown of San Onofre Nuclear power plant last week had no impact on wholesale electricity prices, data from the California Independent System Operator showed. California has a huge amount of gas plant … Continue reading

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Questions for Edison

The 02/08/2012 OC Register article “Nuclear plant’s neighbors want radiation monitors” covered the 02/07/2012 San Clemente Council meeting, where citizens expressed concerns about lack of radiation data, the need for an independent radiation monitoring system for the public, the need for studies to identify potential … Continue reading

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San Onofre and Other Nuclear Plants’ Mechanical Failures

Kevin Kamps, Beyond Nuclear joins Thom Hartmann. California’s San Onofre nuclear power plant was unexpectedly shut down after radioactive water was discovered leaking out of the plant’s Unit 3 reactor [resulting in the release of radioactive vapor into the air]. … Continue reading

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Whistleblower Interview: San Onofre – How Safe Is It?

NUCLEAR HOTSEAT SPECIAL REPORT Libbe HaLevy interviews whistleblower James Chambers A summary of the current status of San Onofre nuclear reactors after last week’s leaks, discovery of over 800 damaged pipes, and employee falling into the radioactive refueling pool. Featuring … Continue reading

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Inspectors find ‘unusual’ wear on San Onofre steam generator tubes

Unusual wear has been found on hundreds of tubes that carry radioactive water at Southern California’s San Onofre Unit 2 nuclear plant, raising questions about the integrity of equipment the company installed in a multimillion-dollar makeover in 2009. San Onofre … Continue reading

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Edison says they have ample reserve power without San Onofre

Although both of San Onofre’s reactor units are now offline, with no word on how soon unit 3 can be restarted, [Edison spokesperson Gil] Alexander said Edison has “ample reserve power” to supply customers.             … Continue reading

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Welding Defects in Unit 3 Steam Generator

San Onofre’s Unit 3 reactor steam generator (currently leaking) had problems from the start.  According to this Nuclear Regulatory Commission Information Notice 2010-07: Welding Defects in Replacement Steam Generators: The welding defects identified at the fabrication facility on the replacement … Continue reading

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