Tag Archives: nrc

San Onofre nuclear plant update – one unit to turn on, another to stay off permanently

Yesterday Southern California Edison submitted plans to restart one of its two nuclear generators at the San Onofre Nuclear Generating Station (SONGS). The other generator is being shut down permanently. Both units showed radioactive damage and required repairs.

Unit 2, the generator that will be turned on, had six tubes showing extreme decay, and 1,600 overall with some decay. Unit 3, which will remain shut down, had 381 showing extreme decay, and 1,800 with some decay. Edison reports that a team of independent experts inspected these repairs and approved the plan to turn on Unit 2. These plans were submitted to the Nuclear Regulatory Commission and are awaiting approval.

If accepted Unit 2 will run for five months at 70% power, and then turn off for “inspection of the steam generator tubes to ensure the continued structural integrity of the tubes, to measure tube wear and to confirm that the solutions are working.” At the same time, Edison plans to defuel Unit 3, which “refers to the carefully executed transfer of fuel from the reactor into the spent fuel pool in a strong, reinforced building where it is secure and constantly monitored.”

This is a “longer term outage mode” and there are no plans to bring it back online “in the near future”.

In a separate release from a review started two years ago, Edison plans to downsize the staff at SONGS by 730 employees, a 33% reduction. The press release said this was for achieving greater efficiencies like other nuclear plants. But there was also a mention of the financial losses at the plant due to the shutdown, and a reference to Unit 3 that “will not be operating for some time.”

There is a public meeting about this information scheduled for October 9 at 6pm in the St. Regis Hotel in Monarch Beach. There will also be a live stream of proceedings available at video.nrc.gov – starting one hour before the meeting. The official pdf notice of the meeting and a blog post with updates and comments.

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More information can be found at SongsCommunity.com and by following the SONGS twitter account.

 

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Final report issued on San Onofre Nuclear Plant – Edison not to blame, it was a Mitsubishi computer glitch

The final review of the radiation leak at the San Onofre Nuclear Generating Stations (SONGS) has been completed by the Nuclear Regulatory Commission (NRC). Among its findings are that Southern California Edison (SCE) responded appropriately to the issue, while Mitsubishi Heavy Industries, a company based in Japan, is to blame. They found that Mitsubishi’s “faulty computer modeling” resulted in mismatched components that, after only a year, had worn down significantly.

The good news is that we caught this issue before a catastrophic problem occurred, hinting that the safety protocols from SCE were adequate. The bad news is that we were one computer glitch away from a national disaster.

The outcome of all this is uncertain. You can bet that SCE would like to restart SONGS to start making money again, and they can do so by completing the checklist in the NRC report. They have said publicly this will not be until at least September, probably longer, meanwhile the public is digesting this news and preparing a public hearing from the NRC.

Many are speculating that since the plant was not needed during the heavy-use summer days, maybe it is not needed at all. But, that ignores the fact that other power plants were operating above capacity to compensate. Either way something will need to change, whether it’s an acceptance of the restart of SONGS, a new plan to make normal the over-operation of natural gas plants, or some blended model that takes into account the renewable energy sources coming online in the next few years.

 

More on this…

NRC:

 

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Update on San Onofre Nuclear Plant – backup emergency generators also flawed

NRC OVERSIGHT HAS FAILED AT SAN ONOFRE

This letter was sent to U.S. Nuclear Regulatory Commission Chairman Gregory Jaczko, with a copy to The Orange County Register:

Dear Chairman,

We were stunned to learn recently that for nearly three decades, the San Onofre nuclear reactors have been operating with inherently flawed backup emergency diesel generators, flaws that could have caused these generators to shut down as a result of a major earthquake. According to documents submitted to the NRC on May 14 of this year by Southern California Edison, the operator of the San Onofre plant, the effect of a major seismic event on the high-frequency sensors that would trigger the shutdown of the backup generators had not been analyzed. Upon discovering this issue, the sensors were immediately turned off, indicating significant safety concerns.

Allowing the San Onofre nuclear reactors, located directly next to major fault lines, to operate with such a fundamental safety issue unexamined for three decades is a dramatic failure on the part of the commission. The loss of both offsite and onsite power, or station blackout, is the very condition that led to the nuclear catastrophe at Fukushima Daiichi (Japan). As you are aware, the seismic vulnerability of nuclear reactors has become an even more urgent issue in the aftermath of the Fukushima Daiichi accident. We are well aware of your particular concerns in this area. Tuesday’s news underscores the need for immediate and urgent action.

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Edison delays investigation of San Onofre nuclear leak – local newspapers stop covering completely

March 2, 2012 – Southern California Edison (SCE) continues to perform extensive testing and inspections of the steam generators at the San Onofre Nuclear Generating Station.

“Nuclear safety is our top priority,” said Pete Dietrich, SCE senior vice president and chief nuclear officer. “Everything we do — from normal plant operations and routine refueling…”

Edison PR

I don’t want to be controversial, but this is starting to sound like a delay tactic. The leaking nuclear steam turbine was taken offline over two months ago with an investigation to follow. The initial word was that a report would be issued “the following week.”

After that deadline passed a few newspapers reported the delay. Then, Barbara Boxer, California’s Senator, issued a concerned letter and so did the local city council.

Still no results from the investigation.

Even the local newspapers, with readers in the fallout zone, have stopped reporting on it. The issue seems to be sliding into the rear view mirror, and perhaps that’s the way Edison wants it.

The leak has become much more serious than initially reported. Our local journalists (at the LA Times, OC Register, and San Diego UT) did us a disservice by simply reporting what Edison told them: the leak was tiny, no safety issues were posed, and Edison is doing everything right.

A line they still stick to (when they do cover it).

My own investigations turned up something different. First, the report to the NRC said that the first unit leaked up to 82 gallons/day of radioactive steam. Second, the sister unit had upwards of 1,000 pipes showing radiation damage. Third, there was another incident back in November with an ammonia leak.

Yeah, nothing to worry about here, Edison has it all under control. Two reactors turned off, one leaking, radiation damage, and ammonia problems.

It doesn’t help that Edison is purposely ambiguous in their statements. The only significant piece of information in the latest press release (linked above) is that some of the 1,000 pipes have been “plugged”. Which begs the question, were they leaking?

I understand these things are complicated but the longer the issue drags on the worse it seems to get. Edison isn’t becoming any more honest in their dealings with the public. The newspapers are continuing their anti-journalistic approach.

I have to wonder if the approach is to delay, wait until any public interest dies down, and then handle it their own way.

Stay tuned and remember that the nuclear industry has a very poor track record and may have no regulatory control.

Is the nuclear industry suffering from “regulatory capture”?

I was doing a little research on the Nuclear Regulatory Commission when I found the following statement:

“Some observers have criticized the Commission as an example of regulatory capture

Just what does that mean?

In economics, regulatory capture occurs when a state regulatory agency created to act in the public interest instead advances the commercial or special interests that dominate the industry or sector it is charged with regulating. Regulatory capture is a form of government failure, as it can act as an encouragement for large firms to produce negative externalities. The agencies are called “captured agencies”.

via Wikipedia

Sounds eerily similar to what happened with Wall Street and the housing market.

If you’re interested in learning more about how this can happen the NY Times has a great article on regulatory capture:

“The commission’s defenders often argue that it must be cautious because increased costs from safety requirements could kill the nuclear power industry. But the cost of generating electricity from existing plants is actually low: the construction expenses have been paid off and running them is relatively cheap. Requiring the operators of plants to install new safety systems would not result in them being shut down…”

 

Is the nuclear industry suffering from "regulatory capture"?

I was doing a little research on the Nuclear Regulatory Commission when I found the following statement:

“Some observers have criticized the Commission as an example of regulatory capture

Just what does that mean?

In economics, regulatory capture occurs when a state regulatory agency created to act in the public interest instead advances the commercial or special interests that dominate the industry or sector it is charged with regulating. Regulatory capture is a form of government failure, as it can act as an encouragement for large firms to produce negative externalities. The agencies are called “captured agencies”.

via Wikipedia

Sounds eerily similar to what happened with Wall Street and the housing market.

If you’re interested in learning more about how this can happen the NY Times has a great article on regulatory capture:

“The commission’s defenders often argue that it must be cautious because increased costs from safety requirements could kill the nuclear power industry. But the cost of generating electricity from existing plants is actually low: the construction expenses have been paid off and running them is relatively cheap. Requiring the operators of plants to install new safety systems would not result in them being shut down…”

 

Why do Americans think nuclear power is safe when near-meltdowns and leaks happen constantly?

In a previous post, I reported that 58% of Americans think nuclear power is safe. After reading the below reports one has to wonder why that is…

14 Near Meltdowns

Among the litany of violations at U.S. nuclear power plants are missing or mishandled nuclear material, inadequate emergency plans, faulty backup power generators, corroded cooling pipes and even marijuana use inside a nuclear plant, according to an ABC News review of four years of Nuclear Regulatory Commission (NRC) safety records.

There are 104 U.S. nuclear power plants, producing 20 percent of the country’s electricity at world-class safety levels, according to the Nuclear Energy Institute.

The Union of Concerned Scientists found 14 “near misses” at nuclear plants in 2010. And there were 56 serious violations at nuclear power plants from 2007 to 2011, according the ABC News review of NRC records.

In a statement by the NRC to congress, “the last five years show no abnormal occurrences at U.S. nuclear plants. In fact, America’s reactors produce 20 percent of all electricity at world class safety levels.”

Chicago is in Danger

At the Dresden Nuclear Power Plant in Illinois, for instance, which is located within 50 miles of the 7 million people who live in and around Chicago, nuclear material went missing in 2007. The Nuclear Regulatory Commission fined the operator — Exelon Corp. — after discovering the facility had failed to “keep complete records showing the inventory [and] disposal of all special nuclear material in its possession.”

As a result, two fuel pellets and equipment with nuclear material could not be accounted for.

Two years later, federal regulators cited Dresden for allowing unlicensed operators to work with radioactive control rods. The workers allowed three control rods to be moved out of the core. When alarms went off, workers initially ignored them.

New York City is in Danger

At the Indian Point nuclear plant just outside New York City, the NRC found that an earthquake safety device has been leaking for 18 years.

In the event of an earthquake, Lochbaum said, the faulty safety device would not help prevent water from leaking out of the reactor. A lack of water to cool the fuel rods has been the most critical problem at the Fukushima plant in Japan after the recent earthquake and tsunami.

“The NRC has known it’s been leaking since 1993,” Lochbaum said, “but they’ve done nothing to fix it.”

via ABC news: Records show 56 violations in past 4 years