Water above 6.5 to 7 feet was expected to compromise Oyster Creek’s capacity to cool its reactor and spent fuel pool, according to the NRC. An “Unusual Event,” the first level of emergency classification, was declared Monday afternoon when floodwaters climbed to 4.7 feet.
Though an emergency pump was brought in when water rose above 6.5 feet late Monday, the NRC and plant owner Exelon have been vague about whether it was needed. As of this writing, it is still not clear if Oyster Creek’s heat transfer system is functioning as designed.
Whether the original intake system or some sort of contingency is being used, it appears the pumps are being powered by backup diesel generators. Oyster Creek, like the vast majority of southern New Jersey, lost grid power as Sandy moved inland Monday night. In the even of a site blackout, backup generators are required to provide power to cooling systems for the reactor – there is no such mandate, however, for spent fuel pools. Power for pool cooling is expected to come either from the grid or the electricity generated by the plant’s own turbines.
As the NRC likes to remind anyone who will listen, Oyster Creek’s reactor was offline for fueling and maintenance. What regulators don’t add, however, is that the reactor still needs cooling for residual decay heat, and that the fuel pool likely contains more fuel and hotter fuel as a result of this procedure, which means it is even more at risk for overheating. And, perhaps most notably, with the reactor shutdown, it is not producing the electricity that could be used to keep water circulating through the spent fuel pool.
If that sounds confusing, it is probably not by accident. Requests for more and more specific information (most notably by the nuclear watchdog site SimplyInfo) from Exelon and the NRC remain largely unanswered.
Oyster Creek was not the only nuclear power plant dealing with Sandy-related emergencies. As reported here yesterday, Nine Mile Point Unit 1 and Indian Point Unit 3–both in New York–each had to scram because of grid interruptions triggered by Monday’s superstorm. In addition, one of New Jersey’s Salem reactors shut down when four of six condenser circulators (water pumps that aid in heat transfer) failed “due to a combination of high river level and detritus from Hurricane Sandy’s transit.” Salem vented vapor from what are considered non-nuclear systems, though as noted often, that does not mean it is completely free of radioactive components. (Salem’s other reactor was offline for refueling.)
The NRC declared the alert at 8:45 PM local time, as a combination of rising tides, wind and the storm surge from Hurricane Sandy caused water to rise above safe levels in the plant’s water intake structure. Sandy, which made landfall at around 8 PM in southern New Jersey with 90 mph winds, has caused power outages and widespread flooding along the Atlantic coast from Maryland to New York.
Particular concerns were raised about Oyster Creek. The reactor is currently offline for maintenance, which means all the reactor fuel, along with generations of used fuel, is in the plant’s spent fuel pools. The plant itself is not generating any electricy, and so is dependent on external power. If the power were to fail, there would be no way to circulate cooling water through the pools.
Backup diesel generators typical to this design power the heat transfer from the reactor, but the so-called “defense in depth” backups for the spent fuel pools are the plant’s own electrical output and power from an external grid.
Flooding of the coolant intake structure further complicates matters. Oyster Creek does not have a cooling tower (like those seen in classic pictures of Three Mile Island). Safe temperatures are maintained by taking in massive amounts of water from a nearby source (in this case, Barnegat Bay). Water must continue to circulate in and out of the facility to keep temperatures at safe levels.
Another question would be whether floodwaters would carry additional radioactive contamination into Barnegat Bay as they recede.
In the NRC press release on Oyster Creek (PDF), the regulator also noted (with apparent pride) that no reactors had been shut down because of Hurricane Sandy. However, at least one reactor, Millstone 3 in Connecticut, had reduced output in anticipation of the storm. Several other reactors in the region are currently offline for refueling or maintenance.
Prior to the court’s ruling, the Commission had evaluated licensing and relicensing with the assumption that spent fuel–currently stored on site at nuclear power plants in pools and dry casks–would soon be moved to a central long-term waste repository. As previously noted, that option was once thought to be Yucca Mountain, but after years of preliminary work and tens of millions of dollars wasted, Yucca was found to be a poor choice, and the Obama Department of Energy and the NRC ended the project. The confirmation of new NRC Chair Allison Macfarlane–considered a nuclear waste expert and on record as a Yucca Mountain critic–focused even more attention on the country’s lack of realistic plans for safe, permanent waste storage.
Waste confidence undergirds certain agency licensing decisions, in particular new reactor licensing and reactor license renewal.
Because of the recent court ruling striking down our current waste confidence provisions, we are now considering all available options for resolving the waste confidence issue, which could include generic or site-specific NRC actions, or some combination of both. We have not yet determined a course of action.
In recognition of our duties under the law, we will not issue licenses dependent upon the Waste Confidence Decision or the Temporary Storage Rule until the court’s remand is appropriately addressed.
Still, this should be read as a victory for the originators of the suit that resulted in the June ruling–the Attorneys General of Connecticut, New Jersey, New York and Vermont in coordination with the Prairie Island Indian Community of Minnesota and environmental groups represented by the National Resources Defense Council–and most certainly for the millions of Americans that live close to nuclear plants and their large, overstuffed, under-regulated pools of dangerous nuclear waste. Complainants not only won the freeze on licensing, the NRC guaranteed that any new generic waste rule would be open to public comment and environmental assessment or environmental impact studies, and that site-specific cases would be subject to a minimum 60-day consideration period.
While there is still plenty of gray area in that guarantee, the NRC has (under pressure) made the process more transparent than most similar dealings at the agency. The commission has also, at least for the moment, formally acknowledged that the nation’s nuclear reactor fleet faces a very pressing problem.
The US has 72,000 tons of radioactive waste and generates an additional 2,000 tons every year. Spent fuel pools at individual sites are already so full they pose numerous threats, some eerily similar to the ongoing disaster at Fukushima. Dry cask storage poses other problems and much additional expense. And regional interim waste storage facilities, an idea possibly favored by Macfarlane, is problematic for many reasons, not the least of which is that no sites have yet been designated or built.
But nuclear plant operators, already burdened by the spiraling costs of a poorly maintained and aging inventory, are desperate to have the federal government take the waste problem off their backs–and off their books. Whether that is even technically feasible, let alone politically of fiscally possible, remains to be seen. But the NRC has at least recognized–or at least been forced to recognize–that the nuclear industry should not be allowed to create waste indefinitely without a plan to safely secure what is already on hand.
The Nuclear Regulatory Commission acted improperly when it failed to consider all the risks of storing spent radioactive fuel onsite at the nation’s nuclear power facilities, so ruled a federal court on Friday.
[The Nuclear Regulatory Commission] apparently has no long-term plan other than hoping for a geologic repository. . . . If the government continues to fail in its quest to establish one, then SNF (spent nuclear fuel) will seemingly be stored on site at nuclear plants on a permanent basis. The Commission can and must assess the potential environmental effects of such a failure.
Writing for the court, Judge David Sentelle made no bones about the shortcomings of the NRC’s magical, one-size-fits-all method of assuming a future solution for the nuclear waste storage crisis. Spent fuel “poses a dangerous long-term health and environmental risk,” he said.
The suit was brought by the attorneys general of Connecticut, New Jersey, New York, and Vermont, in coordination with the Prairie Island Indian Community of Minnesota and environmental groups represented by the National Resources Defense Council.
The decision harshly criticized regulators for evaluating plant relicensing with the assumption that spent nuclear fuel–currently stored onsite in pools and dry casks–would be moved to a central long-term waste repository. As discussed here before, the only option seriously explored in the US was the Yucca Mountain site in Nevada. After years of preliminary construction and tens of millions of dollars of dollars spent, Yucca was determined to be a bad choice for the waste, and the Obama administration’s Department of Energy and the NRC halted the project.
Despite the wishful reporting of some nuclear advocates, the Yucca repository is nowhere near ready, and even if it were an active option, the facility would be many years and maybe as much as $100 million away from completion. Still, the nuclear industry and its acolytes have challenged the administration to spend any remaining money in a desperate attempt to keep alive the fantasy of a solution to their waste crisis.
Such zombified hopes, however, do not qualify as an actual plan, according to the courts.
The judges also chastised the NRC for its generic assessment of spent fuel pools, currently filled many times over capacity at nuclear plants across the United States. Rather than examine each facility and the potential risks specific to its particular storage situation, the NRC had only evaluated the safety risks of onsite storage by looking at a composite of past events. The court ruled that the NRC must appraise each plant individually and account for potential future dangers. Those dangers include leaks, loss of coolant, and failures in the cooling systems, any of which might result in contamination of surrounding areas, overheating and melting of stored rods, and the potential of burning radioactive fuel–risks heightened by the large amounts of fuel in the storage pools and underscored by the ongoing disaster at Japan’s Fukushima Daiichi plant.
The decision has immediate ramifications for plants in the northeast seeking license extensions–most notably Entergy’s Indian Point facility, less than an hour’s drive from New York City, and their Vermont Yankee plant, which is operating despite seeing its original license expire in March.
This is a landmark victory for New Yorkers, and people across the country living in the shadows of nuclear power plants. We fought back against the Nuclear Regulatory Commission’s rubber stamp decision to allow radioactive waste at our nation’s nuclear power plants to be stored for decades after they’re shut down – and we won. The Court was clear in agreeing with my office that this type of NRC ‘business as usual’ is simply unacceptable. The NRC cannot turn its back on federal law and ignore its obligation to thoroughly review the environmental, public health, and safety risks related to the creation of long-term nuclear waste storage sites within our communities.
Sign from Fukushima commemoration and anti-nuclear power rally, Union Square Park, NYC, 3/11/12. (photo: G. Levine)
Nearly a week after the first anniversary of the Japanese earthquake and tsunami that started the crisis at the Fukushima Daiichi nuclear power facility, I am still sorting through the dozens of reports, retrospectives and essays commemorating the event. The sheer volume of material has been a little exhausting, but that is, of course, compounded by the weight of the subject. From reviewing the horrors of a year ago–now even more horrific, thanks to many new revelations about the disaster–to contemplating what lies ahead for residents of Japan and, indeed, the world, it is hard just to read about it; living it–then, now, and in the future–is almost impossible for me to fathom.
But while living with the aftermath might be hard to imagine, that such a catastrophe could and likely would happen was not. In fact, if there is a theme (beyond the suffering of the Japanese people) that runs through all the Fukushima look-backs, it is the predictability–the mountains of evidence that said Japan’s nuclear plants were vulnerable, and if nothing were done, a disaster (like the one we have today) should be expected.
Although many politicians have characterized 3/11 and 9/11 as bizarre, near-impossible events that could not have been foreseen, in both cases there were clear but unheeded warnings. . . . In the case of 3/11, the nuclear plant’s operators ignored scientific studies showing that the risks of a tsunami had been dramatically underestimated. Japan’s “safety culture,” which asserted that accidents were impossible, prevented regulators from taking a hard look at whether emergency safety systems would function properly in a tsunami-caused station blackout.
Stover goes on to explain many points where the two nightmare narratives run parallel. She notes how while governments often restrict information, stating that they need to guard against mass panic, it is actually the officials who are revealed to be in disarray. By contrast, in both cases, first responders behaved rationally and professionally, putting themselves at great risk in attempts to save others.
In both cases, communication–or, rather, the terrible lack of it–between sectors of government and between officials and responders exacerbated the crisis and put more lives at risk.
And with both 9/11 and 3/11, the public’s trust in government was shaken. And that crisis of trust was made worse by officials obscuring the facts and covering their tracks to save their own reputations.
But perhaps with that last point, it is more my reading my observations into hers than a straight retelling of Stover. Indeed, it is sad to note that Stover concludes her Fukushima think piece with a similar brand of CYA hogwash:
By focusing needed attention on threats to our existence, 3/11 and 9/11 have brought about some positive changes. The nuclear disaster in Japan has alerted nuclear regulators and operators around the world to the vulnerabilities of nuclear power plant cooling systems and will inevitably lead to better standards for safety and siting — and perhaps even lend a new urgency to the problem of spent fuel. Likewise, 9/11 resulted in new security measures and intelligence reforms that have thus far prevented another major terrorist attack in the United States and have created additional safeguards for nuclear materials.
When it comes to post-9/11 “security” and “intelligence reforms,” Stover is clearly out of her depth, and using the Bush-Cheney “no new attacks” fallacy frankly undermines the credibility of the entire essay. But I reference it here because it sets up a more important point.
If only Stover had taken a lesson from her own story. The Fukushima disaster has not alerted nuclear regulators and operators to vulnerabilities–as has been made clear here and in several of the post-Fukushima reports, those vulnerabilities were all well known, and known well in advance of 3/11/11.
But even if this were some great and grand revelation, some signal moment, some clarion call, what in the annals of nuclear power makes Stover or any other commentator think that call will be heard? “Inevitably lead to better standards”–inevitably? We’d all exit laughing if we weren’t running for our lives.
Look no further than the “coincidental” late-Friday, pre-anniversary news dump from the US Nuclear Regulatory Commission.
Late on March 9, 2012, two days before the earthquake and tsunami would be a year in the rear-view mirror, the NRC put on a big splashy show. . . uh, strike that. . . released a weirdly underplayed written announcement that the commission had approved a set of new rules drawing on lessons learned from the Fukushima crisis:
The Nuclear Regulatory Commission ordered major safety changes for U.S. nuclear power plants Friday. . . .
The orders require U.S. nuclear plants to install or improve venting systems to limit core damage in a serious accident and to install sophisticated equipment to monitor water levels in pools of spent nuclear fuel.
The plants also must improve protection of safety equipment installed after the 2001 terrorist attacks and make sure it can handle damage to multiple reactors at the same time.
Awwwrighty then, that sounds good, right? New rules, more safety, responsive to the Japanese disaster at last–but the timing instantly raised questions.
It didn’t take long to discover these were not the rules you were looking for.
First off, these are only some of the recommendations put before the commission by their Near-Term Task Force some ten months ago, and while better monitoring of water levels in spent fuel pools and plans to handle multiple disasters are good ideas, it has been noted that the focus on hardening the vents in Mark I and Mark II boiling water reactors actually misdiagnoses what really went wrong in two of the Fukushima Daiichi reactors.
Also, it should be noted this represents less than half the recommendations in last summer’s report. It also does not mandate a migration of spent fuel from pools to dry casks, an additional precaution not explicitly in the report, but stressed by NRC chief Gregory Jaczko, as well as many industry watchdogs.
But most important–and glaring–of all, the language under which these rules passed could make it that almost none of them are ever enforced.
This is a little technical, so let me turn to one of the few members of Congress that actually spends time worrying about this, Rep. Ed Markey (D MA-7):
While I am encouraged that the Commission supports moving forward with three of the most straightforward and quickly-issued nuclear safety Orders recommended by their own expert staff, I am disappointed that several Commissioners once again have rejected the regulatory justification that they are necessary for the adequate protection of nuclear reactors in this country. . . .
After the terrorist attacks of September 11, 2001, the NRC determined that some nuclear security upgrades were required to be implemented for the “adequate protection” of all U.S. nuclear reactors. This meant that nuclear reactors would not be considered to be sufficiently secure without these new measures, and that an additional cost-benefit “backfit” analysis would not be required to justify their implementation. The “adequate protection” concept is derived from the Atomic Energy Act of 1954, and is reflected in NRC’s “Backfit Rule” which specifies that new regulations for existing nuclear reactors are not required to include this extra cost-benefit “backfit” analysis when the new regulations are “necessary to ensure that the facility provides adequate protection to the health and safety of the public.”
Both the NRC Fukushima Task Force and the NRC staff who reviewed the Task Force report concluded that the new post-Fukushima safety recommendations, including the Orders issued today, were also necessary for the “adequate protection” of existing U.S. nuclear power plants, and that additional cost-benefit analysis should not be required to justify their implementation.
While Chairman Jaczko’s vote re-affirmed his support of all the Near-Term Task Force’s recommendations, including the need to mandate them all on the basis that they are necessary for the adequate protection of all U.S. nuclear power plants, Commissioner Svinicki did not do so for any of the Orders, Commissioner Magwood did not do so for two of the three Orders, and Commissioners Apostolakis and Ostendorff rejected that basis for one of the three. As a result, the Order requiring technologies to monitor conditions in spent nuclear fuel pools during emergencies will proceed using a different regulatory basis. More importantly, the inability of the Commission to unanimously accept its own staff’s recommendations on these most straightforward safety measures presents an ominous signal of the manner in which the more complicated next sets of safety measures will be considered.
In other words, last Friday’s move was regulatory kabuki. By failing to use the strictest language for fuel pools, plant operators will be allowed to delay compliance for years, if not completely excuse themselves from it, based on the argument that the safety upgrade is too costly.
The other two rules are also on shaky ground, as it were. And even if by some miracle, the industry chose not to fight them, and the four uber-pro-nuclear commissioners didn’t throw up additional roadblocks, nothing is required of the nuclear facilities until December 31, 2016.
So, rather than it being a salutary moment, a tribute of sorts to the victims in Japan on the anniversary of their disaster, the announcement by the NRC stands more as an insult. It’s as if the US government is saying, “Sure, there are lessons to be learned here, but the profits of private energy conglomerates are more important than any citizen’s quaint notions of health and safety. ”
As if any more examples were needed, these RINOs (rules in name only) demonstrate again that in America, as in Japan, the government is too close to the nuclear industry it is supposed to police.
And, for the bigger picture, as if any more examples were needed, be it before or after March 11, it really hasn’t been that hard to imagine the unimaginable. When an industry argues it has to forgo a margin of safety because of cost, there’s a good chance it was too dangerous and too expensive to begin with.
The US Nuclear Regulatory Commission voted last week to implement recommendations from the Near-Term Task Force Review of Insights from the Fukushima Daiichi Accident (PDF), and to do so “without delay.” Coming over seven months after the earthquake and tsunami that started the crisis in Japan, and over four months after the Near-Term Task Force (NTTF) issued its report, the move highlights what might be accomplished when attention is paid, but also illustrates systemic flaws in the US nuclear regulatory regime.
The NRC identified a set of top-tier recommendations that focus on:
- Re-evaluation of seismic and flood hazards;
- Inspections after earthquakes and floods;
- New regulations for “station blackouts” (the loss of all AC power at a reactor);
- Reliability of vents on Mark I and Mark II containments; and
- Better instrumentation for monitoring spent fuel pools.
Now, these recommendations (as opposed to actual rules, which still have to be drafted) do address some of the specific weaknesses exposed by the Japanese disaster–multiple external threats, power interruptions, hydrogen buildup, failing spent fuel storage systems–and that’s a positive step because these problems are quite real and quite possible at many of America’s nuclear power plants. But these fast-tracked proposals make up only seven of the 12 or 13 recommendations in the NTTF report–which, itself, is several points short of a truly comprehensive response to the threats Fukushima brought to the fore–and the process (much beloved by Chairman Jaczko) relies heavily on the cooperation of other government agencies, the good faith of the nuclear industry, and a seemingly magical belief that manmade or geologic events on a level with the March earthquake and tsunami will not happen here until after everything is brought up to code.
So, yes, there is a process for identifying problems (at least after they happen) and proposing some fixes with something approximating alacrity–which raises the question of why the system has not been more responsive over the last 50 years–but history and experience make it clear that process does not equate with performance.
[A]fter the Browns Ferry fire, we came up with a new set of regulations. Those regulations ultimately I think were very, very challenging to implement, so we’ve been struggling really for several decades to really implement those in an efficient and effective way. That’s not to say we don’t have strong fire protection programs, but we don’t have the most effective way to do it.
The Browns Ferry Fire happened in 1975. Jaczko has been an NRC commissioner since 2005; he has been chairman since 2009. And yet, here, now, in October 2011, 36 years after a guy checking for air leaks with a candle started a fire considered to be the second most frightening accident at a US nuclear plant (next to Three Mile Island), six years after Jaczko joined the NRC, Jaczko says that fire safety–a cause he has championed–is a “struggle,” “challenging to implement” and still not at its “most effective.”
In the same discussions, Jaczko also referenced safety upgrades suggested in response to the terrorist attacks of September 11, 2001, and how those are not yet fully implemented. Indeed, a recent story on security at the Indian Point power station underscored just how far the industry still has to go:
[W]hile the NRC came out with new security guidelines in 2003, these were largely voluntary in keeping with the Bush administration’s anti-regulatory policy. They were made mandatory in 2009, but Indian Point, New Jersey’s Salem, Hope Creek and Oyster Creek plants, and about 60 others around the country were granted waivers so they did not have to incur immediate expenses.
If a major domestic accident or a terrorist attack that, frankly, has colored practically every government action over the last decade cannot motivate full and fast compliance with NRC rules, why should the 65% of Americans who live within 50 miles of a nuclear plant believe that the Fukushima recommendations will be handled any better?
Already, events say that they shouldn’t. Within a day of the NRC voting to fast track some NTTF recommendations, the Atomic Safety and Licensing Board, the body responsible for renewing or extending the operating licenses of existing facilities, declared that it would not consider the proposed post-Fukushima requirements when evaluating an extension for the Seabrook Station nuclear plant, nor would it delay consideration of the license till new rules were in place. This is despite NRC Chair Jaczko’s stated preference to the contrary:
I would like to see some type of license condition that provides a commitment or a requirement for implementation of those [Fukushima] lessons before the plants would operate.
It should also be noted that even with Jaczko’s predilection on record, his term as chairman is set to expire in 2013–over a year before he expects any of the NTTF recommendations to be implemented. Jaczko’s desire to serve another term not withstanding, the question of whether he will be asked–even if President Obama is re-elected–or whether he can get reconfirmed is an open one. Despite originally being appointed by George W. Bush, Jaczko has come under fire from other NRC commissioners and from Republicans on the Hill. And it should be pointed out that Obama’s own appointee to the NRC, William Magwood, IV, is a veteran of the Bush administration’s Department of Energy and has been roundly criticized for his cozy relations with the nuclear industry.
So, what’s a country to do? Cross some fingers and hope for the best from a deep-pocketed industry and its weak, captured regulators? Or hit “pause” on license renewals and new plant construction–and even some restarts of sub-standard facilities–until the lessons of nuclear power’s most recent catastrophes are truly learned, and instead spend the time, money and effort on energy sources that don’t require such elaborate safety regimes?
In time, the Rockies may crumble, Gibraltar may tumble. . . but so many of the problems and byproducts of nuclear power are here to stay. Instead of accepting this eternal and fatalist frame for learning lessons and making changes, perhaps this latest case study in regulation should teach a broader lesson: transition to cleaner, safer, and more sustainable energy sources. . . without delay.
For those that think nothing has changed in United States regulation since the Japanese earthquake and tsunami started the ongoing crisis at the Fukushima Daiichi nuclear facility, think again. The pre-disaster mentality of “What could possibly go wrong?” has been replaced with reassurances that “Stuff like that hardly ever happens!”
At least that is the impression conveyed by the current chairman of the US Nuclear Regulatory Commission, Gregory Jaczko, in a pair of early October interviews. During two NRC-sponsored events, Jaczko fielded questions first from nuclear industry professionals and those considered friendly to the expansion of nuclear power, and then, in a separate session two days later, responded to representatives from public interest groups and other individuals generally seen as opposed to nuclear energy.
While the tone of the questions differed somewhat predictably in the two sessions, Chairman Jaczko’s attitude did not. Jaczko took several opportunities to praise the NRC staff and the processes and protocols used by the commission, repeating in both panels that the primary duty of his agency is ensuring the safety of nuclear facilities in the United States.
Beyond his broad assurances and patient, capable demeanor, however, many of the chairman’s assertions about both the NRC process and the progress being made toward his stated safety goals highlighted notable contradictions and troubling biases inherent in America’s nuclear regulatory regime.
To be fair, the pre-Fukushima outlook was not exactly “What could possibly go wrong?” In terms of the types of accidents and the repercussions of contamination, containment breaches, radioactive releases, meltdowns, melt-throughs, and a host of other undesirable situations, regulators and industry insiders alike were probably quite aware of what could go wrong. But as US nuclear proponents and profiteers strove to convey the impression of an informed industry, they also moved to downplay the threats to public safety and made sure to stress that, when it came to disaster scenarios, they had it covered. Read the rest of this entry →
As September drew to a close, residents of southwest Michigan found themselves taking in a little extra tritium, thanks to their daily habit of breathing (h/t emptywheel). The tritium was courtesy of the 40-year-old Palisades Nuclear Generating Station in Covert Township, which suffered its third “event” (as they are politely called) in less than two months, and was forced to vent an indeterminate amount of radioactive steam.
While it is nice to see rectors shut themselves down when a vital system goes offline, remember that “turning off” a fission reactor is not like flicking a light switch. Shutting down a reactor is a process, and the faster it is done, the more strain it puts on the reactor and its safety and cooling systems. And even after fission is mitigated, a reactor core generates heat that requires a fully functional cooling system.
Which is kind of an interesting point when considering that Palisades had just been restarted after completing repairs to a breach in the cooling system that was reported to be leaking more than 10 gallons per minute. Prior to that, a “special inspection” was ordered August 9 after a pipe coupling in the plant’s cooling system failed.
(By the way, have no fear, Michiganders, a public affairs representative for the Nuclear Regulatory Commission reassured the public that the concentration of tritium was “far below regulatory releases,” and that “as soon as it goes out, it gets diluted further.” You know, in the air. . . that you breathe.)
News of the Palisades tritium burp came at roughly the same time as a breathless (if a press release can be breathless) announcement from Dominion Resources, the folks responsible for the North Anna nuclear plant, the facility that scrammed after being shaken beyond design specifications by the earthquake centered in nearby Mineral, Virginia:
Our investigation showed the units tripped before the loss of off-site power when multiple reactor sensors detected a slight power reduction in the reactors. . . .
The root cause team determined that this occurred as result of vibration in the reactor or the monitoring devices in the reactors, or both.
Again, good that the reactors scrammed when something registered the quake, but noteworthy again because it was previously believed that the automatic shutdown started as a result of a loss of power–power required to operate the cooling systems, not only for the reactors, but for the spent fuel pools, as well.
This is not just a perpetual motion machine laugh line. This inherent flaw in the design of LWRs is at the root of two other prominent tales of nuclear safety (or lack thereof).
The first, of course, is the ongoing, ever-metastasizing disaster in Japan, where failures in the cooling systems at Fukushima Daiichi following a massive earthquake and tsunami resulted in hydrogen explosions, core meltdowns, and, likely, melt-throughs that contaminated and continue to poison sizable portions of the country and surrounding sea.
The second story concerns the proposal for the construction of two new reactors at Plant Vogtle, a nuclear power facility near Augusta, Georgia.
The Vogtle reactors would be the first to be built in the US in a generation, and they have come under some additional scrutiny in part because they would be the first of a new-design LWR called the AP1000. A riff on previous Toshiba/Westinghouse pressurized water reactors, the AP1000′s most noticeable “innovations” are meant to address the active cooling paradox. First, it has emergency “dump tanks,” reservoirs of water situated above the reactor that could, in an emergency, empty into the reactor via gravity, providing up to 72 hours of “passive” cooling. Second, rather than housing the core in a reinforced concrete shell with a metal liner, the AP1000 would have an all-steel containment vessel which would, in theory, be able to expel heat through convection.
While these two design features both highlight and attempt to address a dangerous flaw that is a part of every other nuclear facility in the United States–that water has to be actively cycled through a reactor core to keep it from melting–the design still predates the Fukushima quake, and fails to truly incorporate the lessons of that disaster.
The massive March 11 earthquake shutdown power to the Fukushima Daiichi plant, and thus the cooling systems, and the tsunami that followed flooded the diesel-powered backup generators, but that was only part of the problem. Investigations now show that even if Fukushima had in some way managed to maintain power, the cooling system would still likely have failed for at least some (and likely all) of the reactors, and (and this is important) for the spent fuel pools, as well. That is because the quake not only caused a loss of power, it also caused numerous breaches in the cooling system. Cracks in the containment vessel, broken pipes, and dislodged couplings would have likely resulted in a calamitous drop in water levels, even with full power. Less than successful attempts to restore the cooling systems with new, external power sources, and the large amounts of contaminated water that continue to pour from the plant, have demonstrated just how severely the physical infrastructure was damaged.
There are additional concerns about the design of the AP1000 (possible corrosion of the all-metal containment vessel and less than rigorous computer modeling of seismic tolerances, for instance), but, in a post-Fukushima world, simply addressing the active/passive cooling problem (and only doing so for the reactor and not the spent fuel pools) does not promise a safe nuclear facility.
The chairman of the U.S. Nuclear Regulatory Commission says the agency may need to incorporate its findings about a nuclear disaster in Japan into a license to build a new nuclear plant in Georgia.
NRC Chairman Gregory Jaczko said Wednesday [September 28] he believes the license to build two more reactors at Plant Vogtle near Augusta should include conditions that reflect the findings of a review of this year’s disaster at the Fukushima Dai-ichi plant.
While it is true that “may” and “should” are not “will” and “must,” and it is also the case that the Fukushima taskforce recommendations themselves do not fully address the problem outlined here, Chairman Jaczko’s comments do make the point that there are indeed lessons to be learned from the Japanese crisis, and right now, in the US, that education has not taken place.
The chairman and his fellow commissioners have wrestled all summer with the pace of post-Fukushima reform. Jaczko has argued for what in NRC terms is considered a speedy consideration of the new safety regime, but a majority of the panel has managed to slow the process down to a point where no new regulations will likely be in place by the time the NRC is required to rule on the Vogtle permits.
But, because the Vogtle hearings have revealed the Chairman’s understanding of at least some of the problems, it also reveals an obvious path for Jaczko and those (such as Senator Barbara Boxer (D-CA)) who would also want any new construction or operating permits to only be approved under guidelines drafted in response to the Fukushima disaster. If the industry–and the commissioners most friendly to it–wants to move quickly ahead on new construction and the relicensing of 40-year-old plants, then it should be required that they move quickly on adopting the Fukushima taskforce recommendations. No new safety rules, no new permits–the political calculus should be that simple.
And, if the NRC won’t do the political math, then it should be up to elected government to run the financial numbers.
Building the new Vogtle reactors is projected to cost $14.8 billion. That’s projected–the existing Vogtle plant went over budget by a factor of 14. But even if the new reactors stay on budget, there is still no way they would get built without help from the Federal Government. To that end, the Obama administration okayed an $8.33 billion loan guarantee for The Southern Company, owners of Plant Vogtle, contingent on the NRC’s approval of the plans. (By way of comparison, that is 16 times the size of the loan given to the now-defunct solar technology company Solyndra.) While there are a myriad of reasons why that and other such guarantees should never be proffered, at minimum, the federal government should now freeze the financial backing for new construction until the NRC passes–and industry adopts–an enhanced safety regime.
This wouldn’t be a one-shot power play. Hot on the heals of Vogtle, the V.C. Summer nuclear facility in South Carolina is also looking to add two new AP1000 reactors, and its permit process is also underway. And financial markets understand what a bad bet that project is, too. Summer is also owned by Southern, but it is operated by SCANA. Moody’s, the bond-rating agency, just downgraded SCANA’s debt to one notch above “junk” status, citing the cost of the proposed new reactors.
Meanwhile, the Commonwealth of Virginia has handed over $7 million in precious state funds to North Carolina’s Babcock & Wilcox to open a prototype of a small modular reactor (SMR) in the town of Forest, near Lynchburg. The SMR is small, indeed–160 megawatts (in contrast to the 1,800 megawatt capability of Virginia’s North Anna plant)–and it’s built entirely underground, supposedly enhancing its safety when faced with a potential terrorist attack. How it will provide greater protection from an earthquake or flood seems (at best) less obvious.
Yet, with all of this action, all of these new designs, all of this lobbying, and all of this (as “serious” people repeatedly caution) scarce government money, still no one is addressing another part of the nuclear equation: spent fuel. With Yucca Mountain now (supposedly) abandoned, the United States has no long-term plan for handling the already large and ever-growing problem of dangerous spent nuclear fuel. Right now, each nuclear facility stores its used fuel in either pools, dry casks, or both. The spent fuel pools require an active cooling system, which faces most of the same problems inherent in reactor cooling. Dry casks–used for fuel that is cool enough to remove from the pools–are considered safer, but they are far from “safe.” They are above ground, emit some radiation, and are theoretically vulnerable to terrorist attack (and the casks at North Anna moved and sustained “cosmetic” cracks in the August earthquake). In many US plants, both pools and casks are already filled to capacity. Expanding the number of nuclear reactors only accelerates the storage crisis.
And it must be reiterated, all of this activity comes a mere six months after the start of the Fukushima disaster. The latest announcement from the Japanese government–that they will relax the evacuation order for more than 100,000 residents even though their towns have not yet been decontaminated–says nothing about an easing of the emergency, and everything about a government that frankly just doesn’t know what else to do. The United States, though obviously larger, has reactors near enough to densely populated areas that a nuclear accident would make Japan’s evacuation problem seem like a rush hour fender bender. And the US government’s plan to deal with a nuclear disaster is no more impressive than Japan’s.
The saddest part, of course, is that it needn’t be that way. Beyond the political and financial tools proposed above, the NRC actually already has the power to demand the nuclear industry own up to the new seismic reality. When Westinghouse Electric came before the commission in May, it was ordered to fix its seismic calculations. Though Westinghouse grumbled, it did not question the NRC’s authority to rule on seismic concerns.
Nuclear regulators already have “sufficient information and knowledge” to deal with earthquake risks at existing U.S. reactors and don’t need to wait for a broader review, a safety advocate said.
The Nuclear Regulatory Commission developed seismic rules for new plants in 1996 and has since approved preliminary construction for proposed nuclear units at a Southern Co. plant in Georgia and certified an early reactor design by Toshiba Corp.’s Westinghouse Electric unit, according to comments filed with the agency today by David Lochbaum. . . .
“If the NRC truly lacks sufficient information about seismic hazards and how safety at nuclear power reactors is affected, then the agency cannot responsibly have issued early site permits and certified new reactor designs,” he said.
Of course, having the authority and exercising it are not the same thing, but just as the NRC is not truly handcuffed by the fight over the Fukushima taskforce recommendations, the entire country need not be shackled to such a flawed, dangerous and expensive energy source as nuclear. The US government has demonstrated that it has the authority to make decisions on energy sources, and it has shown that it actually has the money to invest–big money. Of course, be it the NRC, Congress or President Obama, when it comes to moving beyond nuclear to demonstrably safer and truly renewable sources, what the US has not shown is the will.
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Correction: Last week’s post included the wrong location for the Seabrook nuclear plant; Seabrook is in New Hampshire. Apologies and thanks to the readers that spotted the error.
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