Showing posts with label Nuclear Energy. Show all posts
Showing posts with label Nuclear Energy. Show all posts

Monday, September 17, 2012

Build Baby, Build! Rewewable energy brings cheaper electricity & more jobs

2050 Power Generation Scenarios
RMI.org

 The utilities don't want it to happen.

They make their money when they build big, centralized power plants powered by coal, natural gas, or uranium. They take a mark up on the cost of the plant as profit. That's what most state regulations mandate: states allow utilities to mark up the cost of the plant by a fixed percentage to insure that utilities do not gouge customers. But the rule that protects customers also hurts them: utilities are guaranteed that fixed percentage on the cost of the plant as profit. How many other businesses can guarantee shareholders a profit? And the more expensive the plant, the bigger the profit.

But the state giveth, and the state can taketh away.

Distributed renewables are a lot smarter way to provide power. That means small, local, combined heat and power generators fueled by natural gas set up alongside rooftop photovoltaics, small windmills scattered about, and biomass gas generation facilities that turn food and animal (including human?) waste into natural gas and compost. Such infrastructure requires lots of components that we could manufacture locally and employ local people to install and maintain. Distributed renewables utilize existing technology and cost less to install and maintain, and once installed require no fuel source (except for biomass, which consumes waste).

Meeting demand is no problem. Distributed renewables combine different power sources that generate best at different times, use gas generators for peak loads,implement energy storage via pumped water (been around for over a hundred years), pressurized underground air, or batteries. Distributed renewables meet demand even more easily when combined with improved consumption efficiency that easily cuts household and industrial electricity use by 50%, and in many cases up to 80 % . Improving efficiency more than pays for itself and employes lots of people. (see negawatts at RMI.org)

Distributed renewables are more reliable, too. When you have lots of little power sources, if one fails, the impact is small. When a large centralized plant is shut down, the impact is large and for longer duration -- nuclear power plants are often shut down for months or years when faults are discovered.

But utilities hate this idea. If we distribute power generation, utilities lose their cut. They lose control of a monopoly with a guaranteed profit. Hence, they prefer to rip us off and poison us.

Ponder it.

Thursday, July 5, 2012

Yucca. Pinnacle of Waste?

Yucca Mountain, Nevada
photo: Wikipedia


UPDATE: 7-Aug-2012:
Court Weighs an Order on Nuclear Waste Site in Nevada (NY Times)

According to the federal appeals court in Washington DC, the Nuclear Regulatory Commission must make a determination on the fitness of Yucca Mountain as a nuclear waste storage facility unless Congress rules by December 14th that the NRC should abandon the evaluation. Despite President Obama's 2010 stop work order on the site, Congress failed to suspend the commission's work, while at the same time failing to fund further study by the commission.

Original story:
 
On 5-July-2012, The New York Times ran the following editorial: "Remember Yucca Mountain?" The article describes the intended use for the underground facility at Yucca Mountain, Nevada; the dire need to dispose of spent fuel rods from nuclear power plants; and goes on to say: "It would be easier to monitor and inspect the rods and cheaper to guard them in a central location."

Respectfully, I disagree with that assessment.

When calamity, either human-induced or nature-induced, visits a designated central storage site, you can be sure human errors and technical failures will pop up like mushrooms, just as they did at Fukushima, Chernobyl, Three Mile Island, and Fermi I.

Fermi I, topic of "We Almost Lost Detroit"
photo: Beyond Nuclear


Fermi I, the first (and only) breeder reactor to operate commercially in the US -- the great promise of a reactor that runs practically forever on teaspoons of fuel -- failed and suffered a partial meltdown shortly after it began operation. Fermi II, operated off and on since 1988 on the same site (near Monroe, Michigan), houses tons of spent fuel rods in an unshielded pool five stories above the reactor containment vessel. The contractor who installed a crane for moving the rods from the pool executed numerous welds improperly. Packed in to twice design capacity (with NRC approval), the rods were impossible to move due to a gimped crane. Those welds have been fixed, we are assured, and the rods can be moved. But now, the plant awaits seismic analysis before proceeding with a "dry" run test of the crane -- designers of the plant did not consider the possibility of a temblor. They are not unheard of in the Midwest. One destroyed New Madrid, Missouri about a century ago.

New Madrid, Missouri, December 16, 1811
photo: Smithsonian Magazine


The nuclear power industry has been a bungled, subsidy dependent, clown show since its inception with no tangible benefit for the society that naively supported it. We are stuck with overpriced, unreliable (shutdowns of months or years are common) sources of electricity. Now the plan is to move spent fuel at Fermi II and other plants to shielded "dry casks" and store it on site. That, according to many, is the safest plan: keep it on site in comparatively small quantities. Moving it presents even greater danger. Pack it in low volume, stable, hardened containers, build walls around it, and pay guards to watch it you hope you can trust. If utilities transport the spent fuel to a central location, state and federal forces insist on militarizing roads, rails, and rivers -- demanding ID from travelers, detaining anyone "suspicious" -- to protect against terrorists. Utilities can not guarantee the fuel will not fall off a truck or train or barge due to mechanical failure (ill-maintained bridge collapse?). If that happens, we'll have a disaster in an unforeseen, possibly well-populated, location with no evacuation plan (no one could design a credible evacuation plan for every inch of the route between say upstate New York and Yucca Mountain). Once the disaster occurs, of course, crews will have thousands of years to contemplate clean up -- that's how long some of the isotopes in spent fuel rods hang around in toxic concentration. Keep the spent fuel where it is, and create no more. Efficiency improvements and distributed renewables are cheaper and more reliable.

Monday, January 2, 2012

~ Fermi III ~ Impact of A Nuke ~


Fermi II Cooling Towers -- Monroe, MI
photo: thenewsherald.com



Mike Keegan, representing Don't Waste Michigan & the Coalition for a Nuclear Free Great Lakes, makes a convincing argument against nuclear power generally, and Fermi III specifically at the International Roundtable on "Nuclear Threats to the Great Lakes and Transition to Clean Safe Energy" on May 14, 2011, in Dearborn, Michigan (USA)

UPDATE 03-APR-12: The comment period on the Draft Environmental Impact Statement for Fermi III is long passed. Now we wait for the NRC to revise and release the final draft. No doubt, most of the comments will be dismissed as irrelevant, but note below some of the details of how Detroit Edison intends to force ratepayers to finance this thing (in lieu of cheaper alternatives such as distributed renewables, which Detroit Edison no doubt disfavor due to the fact that anyone can own and operate them -- Detroit Edison looses control of the electricity franchise if we choose cheaper, safer alternatives that provide more domestic employment).

The environmental impact statement drafted by the NRC, and eligible for public comment until January 11, 2012: Draft Environmental Impact Statement for Combined License (COL) for Enrico Fermi Unit 3 (NUREG-2105, Volume 1)

Detroit Edison hopes to bless the residents of southeast Michigan with a brand new Economic Simplified Boiling Water Reactor (ESBWR) designed by GE-Hitachi Nuclear Energy Americas, LLC (GEH)

This new reactor will be a fine conduit for ratepayer cash to flow into the pockets of Detroit Edison's executives and shareholders. Or, out of taxpayers' pockets and into the pockets of bankers (via Congressionally-mandated loan guarantees) if Detroit Edison should go bankrupt building this new, unproven design in a field strewn with the corpses of the clanking behemoth's predecessors. And the road to that field is paved with the squandered treasure of American taxpayers.

Until the deadline on January 11, 2012,  you have the opportunity to post your comments on the above draft environmental impact study. I encourage all to do so -- read a chapter or two, and pick a favorite topic to sound off on.

Fermi II
photo: Nuclear News / What the physics?



Here are my remarks:


Comment on:
Draft Environmental Impact
Statement for Combined License (COL)
for Enrico Fermi Unit 3

Draft Report for Comment
U.S. Nuclear Regulatory Commission

Office of New Reactors
Washington, DC 20555-0001

Regulatory Office
Permit Evaluation, Eastern Branch
U.S. Army Engineer District, Detroit
U.S. Army Corps of Engineers
Detroit, MI 48226


I am opposed to the construction and operation of Fermi III. I have restricted my comments to Chapters 6-8 (document: sr2105v1-chp6-chp8.pdf).

The premise of the the NRC's environmental impact statement is to assess the environmental effects of building, and operating Fermi III (for up to 60 years). If it were true that the construction and operation of Fermi III were essential to the well-being of Southeast Michigan's residents, then the conclusions drawn by the NRC review team might seem plausible, even reasonable. But Fermi III is not an essential future element of Southeast Michigan's electricity supply, and thus any environmental impact of Fermi III, not to mention negative economic impact, is detrimental to the well-being of Southeast Michigan's residents.

The residents of Southeast Michigan would be better off from an environmental perspective, health-perspective, and economic perspective if Fermi III were never built. The cost of nuclear power is exorbitant, cost overruns of several multiples are standard, construction delays are endemic, and fuel costs are unpredictable, and waste disposal costs are unknown. It will take decades for ratepayers to repay the loans for Fermi III.

Alternatively, Detroit Edison could invest in efficiency gains and distributed renewable energy, and instead of burdening ratepayers and the environment of Southeast Michigan, benefit ratepayers with long-term, well-paid jobs and clean, non-toxic, terrorism-proof energy, and protect their environment from the inevitable and potentially catastrophic environmental impact Fermi III will impose. Yet, rather than doing well by doing good, Detroit Edison would build an overpriced, toxic, national health and security risk in our backyard, which in the event of catastrophic failure, will force the permanent evacuation of Monroe, the Detroit and Toledo metro areas, and render Lake Erie permanently toxic.

Risk permanent evacuation (hundreds of years, at least). Why? Not to provide us with essential electricity, because it has been shown in California and other states that demand for the foreseeable future can be met with efficiency improvements and distributed renewables at lower cost and better reliability (http://www.ucsusa.org/clean_energy/solutions/big_picture_solutions/do-we-need-coal-and-nuclear-power.html, http://www.completelybaked.blogspot.com/2009/02/renewables-intermittency-reliability.html).

No, Detroit Edison is not building Fermi III to provide Southeast Michigan with an inexpensive, reliable source of energy -- nuclear power is anything but that -- they are building Fermi III to provide their shareholders with profit. There are two reasons nuclear power offers a good return to shareholders -- neither of which has anything to do with the economis of nuclear power. The first reason is that taxpayers are compelled by law to guarantee necessary construction loans ($4 or $5 billion dollars) in the event Detroit Edison defaults, thus indemnifying Detroit Edison's shareholders and executives against loss. The second reason why Fermi III benefits shareholders and executives is that while electric utilities are currently de-regulated and subject to competition, utilities can petition the state to allow them to add surcharges to their published rates to recoup "power supply"  costs (via Michigan Power Supply Cost Recovery (PSCR) plans submitted each year for state approval, the 2011 plan can be found here: http://efile.mpsc.state.mi.us/efile/docs/16434/0001.pdf; PSCR is defined here: http://www.michigan.gov/documents/mpsc/electric_residential_bill_charges_final_318312_7.pdf, http://www.michigan.gov/documents/mpsc/mpsc-ca_understandingyourelectricbilll_329339_7.pdf). In the future, these surcharges will be used to cover the cost of building and operating Fermi III without impacting Detroit Edison's bottom line or their published, "competitive" rates (which if these surcharges were included in their published rates, their rates would no longer be competitive -- so much for free-markets and de-regulation). Thus, all of the revenue derived from the sale of Fermi III electricity represents profit to shareholders and executives.

Improved efficiency and distributed renewables, while cheaper and healthier to ratepayers, would most likely be sold by companies other than Detroit Edison in a true free-market, and therefore are less desirable options to Detroit Edison executives and shareholders. Also, efficiency improvements and renewables create more jobs. But these jobs will most likely be provided by companies other than Detroit Edison, which surely offers Detroit Edison's executives and shareholders no benefit. On the other hand, Fermi III is capital intensive, meaning it costs a lot to build, but creates few long-term jobs. This is undoubtedly preferable to Detroit Edison shareholders and executives, as it easier to manage money and add surcharges to customers' bills than it is to manage employees, especially unionized employees fanned out across the state implementing efficiency improvements and distributed renewables, which ultimately cut revenue to Detroit Edision. And that last point is very important to keep in mind when contemplating why Detroit Edison prefers big, toxic, expensive, capital-intensive generating plants over small, distributed, clean, cheap, job-intensive efficiency and distributed renewables -- Detroit Edison will be subject to real competition in the sale of efficiency and renewables, and likely will fail in a true free-market arena.  Thus ratepayers get stuck with a toxic behemoth they don't need, but must pay for.

And make no mistake, Fermi III is toxic. The NRC environmental impact statement makes this clear: look at the list of toxic emissions enumerated in Table 6-1. The NRC often makes comparisons of these emissions to background levels of these toxins, or the quantity of toxins emitted by coal-fired plants of equal capacity to Fermi III. But those are irrational comparisons. It is like a drunk saying, "Well, I'm already drunk, so what's the difference if I have one more drink?" or a gambler saying, "Well, I'm already broke, so why not play another hand." The point is, these emissions are bad, and more of them makes things worse, and more people and ecosystems dead, even if by comparison to deadlier coal-fired plants, Fermi III emits less. We are already drunk with toxins, so what's the harm in adding a little more? We are already environmentally impoverished, so what's the harm in taking another gamble? Well, if we absolutely needed this electricity, if we had no other choice, maybe the NRC's comparisons and conclusions would be valid. But we do not need the power that Fermi III will provide (http://www.ucsusa.org/clean_energy/solutions/big_picture_solutions/do-we-need-coal-and-nuclear-power.html). Further, if we did need the electricity, we derive more bang for the buck -- power-wise, job-wise, and safe-wise -- if we choose other alternatives, namely end-use efficiency improvements and distributed renewables (see Amory Lovins: http://www.completelybaked.blogspot.com/search/label/Energy, www.rmi.org). End use efficiency improvements and renewables will also help prevent catastrophic global warming because they can be implemented quickly using existing technology. Fermi III -- or any new nuclear power plant -- will do nothing to prevent catastrophic climate change because they take too long to build and will come on line too late to do any good -- the catastrophic climate change will already be upon us when Fermi III comes on line (if it ever does) with overpriced, unneeded electricity from unproven technology.

Once we stipulate that the power Fermi III will provide is unnecessary -- and it is -- then it becomes eminently clear that any environmental impact from Fermi III is unacceptable -- it is unacceptable to throw away acres of essential wetlands, unacceptable to pollute our air and groundwater with radionuclides and other shorter-lived toxins (via mining, processing, plant operation, and waste disposal); unacceptable to draw billions of gallons of water from Lake Erie and kill millions of adult fish, fish eggs, and larvae; amphibian adults, eggs, and larvae; adult insects, insect eggs and larvae that go with that intake water, along with the wildlife that depend on these animals and insects; unacceptable to dump billions of BTU's of heat into the air and water, and tons of atmosphere-heating water vapor from cooling towers. These environmental impacts are not now and never will be benign. (http://www.eoearth.org/article/Thermal_pollution?topic=49471) And there are always longs lists of unintended consequences that come after the fact -- and are irreparable -- when we pollute and tweak environmental systems the way Fermi III will (in conjuction with Fermi II and other thermal power plants along the western shore of Lake Erie). And for no good reason. We don't need the power Fermi III will provide -- we can get electricity elsewhere for less cost, with more and better jobs, and with with catastrophic global warming mitigation. (http://www.ases.org/climatejobs)

On a personal note, I want to remind the NRC review team that they, to quote a character in the TV drama, The West Wing, "are supposed to be the good guys -- act like it." I know there are a lot of smart, caring, well-meaning folks on the NRC review team. I know that you don't want to turn the Detroit metro area into an uninhabitable wasteland. I also know that many on the NRC team would be willing to concede that not everyone in opposition to this thing is a radical, misinformed, tree-hugging, hippie who wants to send us all back to the Dark Ages. But you folks work for the taxpayers, not the nuclear power industry, and even if you hope one day to work for the nuclear power industry where the pay might be better and respect more forthcoming, you must also be willing to concede the possibility of cognitive capture on the part of at least some of the folks at the NRC. There are better options to nuclear power, I am sure of that, and I am a decent, well-meaning, tree-hugging, hippie -- at least according to some (my wife included). Give alternative views a chance. Consider that the industry might be going in the wrong direction. And remember it is your job to keep the industry from taking the rest of us with them when they do go in the wrong direction.

Thanks for your efforts! You have my respect and admiration for doing a difficult job in the absence of sufficient praise and appreciation.

read more...

photo: 25 mi radiation plume from Fermi II courtesy: Nuke Times

Tuesday, July 26, 2011

In Defense Of Renewable Energy

I read the following a while back (my mom sent me a clipping from the Santa Rosa Press Democrat...thanks, Mom; thanks Press Democrat).

I thought the authors did a fine job of refuting the specious arguments of a bloviating blowhard who published a book on the topic, "Power Hungry: The Myths of ‘Green' Energy and the Real Fuels of the Future."

I don't know how such lying liars (or obliviously, blissfully ignorant posers) get away with slathering the landscape with so much misinformation, but Mr. Bryce published an article in a similar vein -- slamming renewables -- in the New York Times, and the Press Democrat reprinted it on June 12, 2011: "When wind and solar power don't add up." The following is a response, by Messrs. Geoff Syphers and Carl Mears (bios below) to that article:
GUEST OPINION: Arguments against wind, solar power don't add up
Santa Rosa Press Democrat, June 18, 2011

Published: Saturday, June 18, 2011 at 7:45 p.m.
Last Modified: Friday, June 17, 2011 at 4:46 p.m.
Robert Bryce's conclusions about solar and wind in his attack on California's renewable energy standards are dead wrong (“When wind and solar power don't add up,” Sunday Forum, June 12).

First, his assumption that solar power requires large centralized systems located in far away deserts is false. In fact, installing solar panels on homes, businesses and parking lots close to where the electricity is consumed is preferable to remote big systems. Huge benefits accrue by avoiding the costs and negative land impacts from new swaths of transmission lines,and the energy line losses that occur when transmitting electricity long distances.

According to a National Renewable Energy Laboratory report issued last year, California could meet 52 percent of its energy needs through solar photovoltaic systems installed on roofs. This amount far exceeds the total percentage mandated by the state to be generated from all renewable sources combined.

Second, Bryce's notion that using land for wind power somehow renders it unsuitable for other uses is laughable. Land under wind turbines is routinely used for agriculture. Leasing privately owned farmland to wind turbine operators increases owners' income and thus helps protect family farms from bankruptcy.

Third, the argument that wind power is more harmful to the environment than natural gas because wind power requires too much steel is simply ridiculous. Roughly 37 times more steel is needed to build pipelines that deliver natural gas to generators than to build the windmills that produce an equivalent amount of electricity.

But the worst of natural gas is not the resources needed for pipelines. Spills, well drilling, habitat destruction and greenhouse gas produced by combusting natural gas are far worse than wind power, and much more costly to our health and the bottom line.

Wind turbines recover their full life-cycle energy inputs within the first seven months of operation. In contrast, natural gas power plants require continuous input of fossil fuel, causing negative impacts in perpetuity.

The Sonoma County Water Agency along with the Climate Protection Campaign, Regional Climate Protection Authority, Los Alamos National Laboratory and Local Power, Inc. are in the midst of a three-year research project whose aim is designing a system that will meet 67 percent of Sonoma County's electricity demand from new local renewable sources.

Hand in hand with this research project, the Sonoma County Water Agency is conducting a feasibility study to determine if community choice aggregation, also known as Sonoma Clean Power, is viable here. Community choice would put decision-making for our source of power for electricity under local determination. It would introduce competition where currently a monopoly exists.

Both study efforts by the Water Agency align with Gov. Jerry Brown's goal of producing 12,000 megawatts of new, locally based renewable power throughout California.

According to Bryce's logic, California should turn its back on renewable energy and stick with natural gas and nuclear power. Something here definitely doesn't add up, but a simple analysis shows that it is Bryce's arguments, not California's bright prospects for renewable energy like solar and wind.

Geof Syphers is a consultant for designing green buildings and is chief sustainability officer for Codding Enterprises. Carl Mears, a Cotati resident, is a contributing author to the Intergovernmental Panel on Climate Change and a member of the board of the Climate Protection Campaign. He is currently on sabbatical in Cordoba, Argentina.

Saturday, May 14, 2011

It Couldn't Happen Here, Could It? A Tale of American Nuclear Power

Browns Ferry Nuclear Power Plant (NRC image)
Fires in nuclear power plants happen. And they can set off a chain-reaction of nasty events. Compared to saving money and hassle for plant operators, the NRC thinks those nasty events, including meltdown,  evacuation of surrounding communities, and air and groundwater contamination with radioactive isotopes is not such a big deal. So, we tango with the devil so that plant operators can keep their profits and their control of electricity infrastructure, and finance the campaigns of politicians' who support them.

All the while, instead of investing in the wildly overpriced, toxic security risks that nuclear power plants are, we could invest in cheaper, safe alternatives, that have the added benefit of creating long term domestic jobs: Renewables vs Nukes: Intermittency & Reliability

Here's a bit from a recent ProPublica story on the NRC and nuclear power plant fire regulations:
For the first quarter century of U.S. nuclear power, fire wasn't much of an issue. The Browns Ferry blaze forced a paradigm shift.
It began with a tiny flame.
On March 22, 1975, a worker using a candle to hunt for air leaks accidentally set fire to insulation near electrical cables underneath the Browns Ferry control room, which two reactors shared. The plastic foam material flared, and before the flames could be smothered they were sucked along cables into the adjacent reactor building.
The fire seared through trays carrying hundreds of cables, triggering a cascade of shorts and creating havoc in the control room. Indicator lights flicked on and off at random; pumps started on their own and then restarted after being shut down. Smoke poured from a cabinet that controlled emergency cooling, and key pumps on the Unit 1 reactor were lost. Operators "scrammed" the reactor, an emergency shut down.
Loss of cooling is a serious event. When a reactor shuts down, the radioactive fuel remains hot enough to melt. With only one small pump operating, water in the Unit 1 reactor boiled off, dropping nearly 13 feet in depth until only 48 inches covered the top of the reactor core. Uncovered, hot fuel reacts with air to create hydrogen -- the gas that ignited and blew buildings apart at Fukushima Daiichi.
Read the whole story, it's worth it (and drop a few coins in the tip cup -- ProPublica is non-profit):  
NRC Waives Enforcement of Fire Rules at Nuclear Plants

Monday, March 21, 2011

"Unusual Events" At American Nuclear Power Facilities

Just in case you thought there was nothing interesting going on in the US nuclear power industry, from the US Nuclear Regulatory Commission: Preliminary Notification (PN) Reports

(Updated: 08-JUL-12)

2012 Preliminary Notices
July
PNO-I-12-002F 07/03/2012 Entergy Nuclear Operations, Inc.: Pilgrim Nuclear Power Station - Current NRC Actions and Status of Union Contract Negotiations – (Update)
PNO-III-12-007 07/02/2012 NextEra Energy Point Beach: Point Beach Unit 2 Manual Reactor Trip and Unplanned Shutdown Greater Than 72 Hours
June
PNO-III-12-006 06/28/2012 Detroit Edison Company: Fermi Power Plant, Unit 2- Unplanned Scram on June 25, 2012, Due To Loss of Reactor Feed Pump
PNO-I-12-003 06/21/2012 PPL Susquehanna, LLC: Shutdown Expected to be Greater than 72 hrs to Repair Leak from Chemical Decontamination Pipe on '1A' Reactor Recirculation Loop
PNO-I-12-002E 06/21/2012 Entergy Nuclear Operations, Inc.: Status of Union Lockout at Pilgrim Nuclear Power Station – (Update)
PNO-III-12-005 06/19/2012 FirstEnergy Nuclear Operating Company: Perry Unplanned Shutdown Greater than 72 Hours
PNO-III-12-004 06/14/2012 Entergy Nuclear Operations, Inc.: Palisades Nuclear Plant - Shutdown Due to Safety Injection Refueling Water Storage Tank Leakage
PNO-IV-12-004B 06/13/2012 River Bend Station: Augmented Inspection Team onsite at River Bend Station (Update)
PNO-I-12-002D 06/06/2012 Entergy Nuclear Operations, Inc.: Current NRC Actions During Pilgrim Nuclear Power Station Union Contract Negotiations – (Update)
PNO-IV-12-004A 06/05/2012 River Bend Station: Augmented Inspection Team onsite at River Bend Station (Update)
May
PNO-IV-12-004 05/29/2012 River Bend Station: Augmented Inspection Team onsite at River Bend Station
PNO-I-12-002B 05/25/2012 Pilgrim Nuclear Power Station - Current NRC Actions During Contract Negotiations (Update)
PNO-I-12-002A 05/17/2012 Pilgrim Nuclear Power Station - Current NRC Actions During Contract Negotiations (Update)
PNO-I-12-002 05/16/2012 Pilgrim Nuclear Power Station - Current NRC Actions During Contract Negotiations
PNO-I-12-001A 05/09/2012 Salem Generating Station: Salem Generating Station Unit 1 Inadvertent Safety Injection and Notification of Unusual Event due to Fire Alarm in Containment (Update)
PNO-I-12-001 05/03/2012 Salem Generating Station: Salem Generating Station Unit 1 Inadvertent Safety Injection and Notification of Unusual Event due to Fire Alarm in Containment
April
PNO-IV-11-009B 04/24/2012 South Texas Project Nuclear Operating Company: South Texas Project Unit 2 Reactor Trip and Extended Outage - (Update)
PNO-II-12-001 04/05/2012 Catawba Nuclear Station Units 1 and 2: Notification of Unusual Event due to Loss of Offsite Power
March
PNO-IV-12-002B 03/27/2012 Wolf Creek Nuclear Operating Corp.: Plant Startup Following Reactor Trip and Loss of Offsite Power at Wolf Creek Generating Station - (Update)
PNO-IV-12-003A 03/16/2012 Southern California Edison Company: San Onofre Unit 3 Augmented Inspection Team Onsite - (Update)
PNO-III-12-003 03/14/2012 Exelon Generation Company, LLC: Byron Unit 1 Unplanned Shutdown for Greater Than 72 Hours
PNO-III-12-002A 03/02/2012 Exelon Generation Company, LLC: Byron Unit 1 Loss of Offsite Power and Declaration of a Notice of Unusual Event - (Update)
February
PNO-III-12-002 02/29/2012 Exelon Generation Company, LLC: Byron Unit 1 Loss of Offsite Power and Declaration of a Notice of Unusual Event
PNO-III-12-001 02/07/2012 Exelon Generation Company, LLC: Byron Unit 2 Restarts After a Loss of Offsite Power and Declaring a Notice of Unusual Event
PNO-IV-12-003 02/01/2012 Southern California Edison Company: San Onofre Unit 3 Steam Generator Tube Leak and Rapid Shutdown
January
PNO-IV-12-002A 01/30/2012 Wolf Creek Nuclear Operating Corp.: Augmented Inspection Team Onsite at Wolf Creek Generating Station - (Update)
PNO-IV-12-002 01/18/2012 Wolf Creek Nuclear Operating Corp.: Wolf Creek Generating Station Notification of Unusual Event
PNO-IV-11-009A 01/12/2012 South Texas Project Nuclear Operating Company: South Texas Project Unit 2 Reactor Trip - (Update)



2011 Preliminary Notices


December
PNO-I-11-004A 12/16/2011 Constellation Energy Nuclear Group, LLC: Nine Mile Point Unit 2 Technical Specification-Required Shutdown Due to an Increase in Unidentified Reactor Coolant System Leakage - (Update)
PNO-I-11-004 12/12/2011 Constellation Energy Nuclear Group, LLC: Nine Mile Point Unit 2 Technical Specification-Required Shutdown Due to an Increase in Unidentified Reactor Coolant System Leakage
PNO-III-11-016A 12/12/2011 Northern States Power Company: Monticello Shutdown Greater Than 72 Hours Due To Actuation Of Reactor Protection Relays Sensing Low Turbine Control Valve Hydraulic Pressure - (Update)
November
PNO-II-11-006A 11/30/2011 Carolina Power and Light Company: Brunswick Unit 2 Notification of Unusual Event (NOUE) Due To Reactor Coolant System Leakage - (Update)
PNO-IV-11-009 11/30/2011 South Texas Project Nuclear Operating Company: South Texas Project Unit 2 Reactor Trip
PNO-III-11-017 11/28/2011 NextEra Energy Point Beach: Point Beach Unit 1 Declares Notification of Unusual Event Due to Loss of Offsite Power
PNO-III-11-016 11/22/2011 Northern States Power Company: Monticello Shutdown Greater Than 72 Hours Due To Actuation Of Reactor Protection Relays Sensing Low Turbine Control Valve Hydraulic Pressure
PNO-II-11-006 11/16/2011 Carolina Power and Light Company: Brunswick Unit 2 Declares a Notice Of Unusual Event (NOUE)
PNO-IV-11-008 11/02/2011 Southern California Edison: Ammonia Leak Causes Evacuation of Unit 3 Turbine Building and Alert Declaration
October
PNO-III-11-015A 10/28/2011 Northern States Power Company: Unplanned Shutdown Greater Than 72 Hours Due To A Loss Of The Auxiliary Power Transformer - (Update)
PNO-III-11-015 10/25/2011 Northern States Power Company: Unplanned Shutdown Greater Than 72 Hours Due To A Loss Of The Auxiliary Power Transformer
PNO-III-11-014 10/20/2011 FirstEnergy Nuclear Operating Company: Davis-Besse Shield Building Indications
PNO-III-11-013A 10/20/2011 Northern States Power Company: Prairie Island Unit 2 Unplanned Shutdown for Greater than 72 Hours - (Update)
PNO-III-11-012A 10/19/2011 FirstEnergy Nuclear Operating Company: Perry Unplanned Shutdown Greater Than 72 Hours - (Update)
PNO-III-11-013 10/05/2011 Northern States Power Company: Prairie Island Unit 2 Unplanned Shutdown for Greater than 72 Hours
PNO-III-11-012 10/05/2011 FirstEnergy Nuclear Operating Company: Perry Unplanned Shutdown Greater Than 72 Hours
PNO-III-11-011A 10/03/2011 Entergy Nuclear Operations, Inc.: Palisades Reactor Trip - (Update)
September
PNO-III-11-011 09/27/2011 Entergy Nuclear Operations, Inc.: Palisades Reactor Trip
PNO-III-11-010 09/19/2011 Entergy Nuclear Operations, Inc.: Palisades Unplanned Shutdown Greater than 72 Hours and Notification of Unusual Event
PNO-IV-11-007 09/19/2011 Union Electric Company: Alert Declared at Callaway Plant
PNO-IV-11-006 09/15/2011 Queen's Medical Center: Medical Event Involving Patient Overexposure
August
PNO-IV-11-003F 08/30/2011 Fort Calhoun Station: Fort Calhoun Station Declaration of a Notification of Unusual Event Due to High River Level – (Update)
PNO-II-11-005A 08/24/2011 Virginia Electric and Power Company (North Anna Power Station, Units 1 and 2): Alert - Emergency Declarations Due to Seismic Event
Calvert Cliffs Nuclear Power Plant,  DC Cook, Hope Creek Generating Station, Limerick Generating Station, Oyster Creek Nuclear Generating Station, Palisades, Peach Bottom Atomic Power Station, Salem Nuclear Generating Station, Shearon Harris Nuclear Plant, Surry Power Station, Units 1 and 2, Susquehanna Power Station, & Three Mile Island Nuclear Station: Notification of Unusual Event - Emergency Declarations Due to Seismic Event - (Update)
PNO-II-11-00508/23/2011Virginia Electric and Power Company (North Anna Power Station, Units 1 and 2): Alert - Emergency Declarations Due to Seismic Event
Calvert Cliffs Nuclear Power Plant,  DC Cook, Hope Creek Generating Station, Limerick Generating Station, Oyster Creek Nuclear Generating Station, Palisades, Peach Bottom Atomic Power Station, Salem Nuclear Generating Station, Shearon Harris Nuclear Plant, Surry Power Station, Units 1 and 2, Susquehanna Power Station, & Three Mile Island Nuclear Station: Notification of Unusual Event - Emergency Declarations Due to Seismic Event
PNO-I-11-003A 08/15/2011 Constellation Energy Nuclear Group, LLC: Nine Mile Point Unit 2 Notification of Unusual Event Due to Reactor Coolant System Leak Greater Than 10 GPM and Plant Shutdown Greater Than Three Days – (Update)
PNO-III-11-009 08/12/2011 NextEra Energy: Duane Arnold Unplanned Shutdown Greater Than 72 Hours
PNO-I-11-003 08/09/2011 Constellation Energy Nuclear Group, LLC: Nine Mile Point Unit 2 Notification of Unusual Event Due to Reactor Coolant System Leak Greater Than 10 GPM and Plant Shutdown Greater Than Three Days
July
PNO-II-11-004 07/27/2011 United States Enrichment Corporation: Chlorine Trifluoride Release at the Paducah Gaseous Diffusion Plant
PNO-I-11-001A 07/27/2011 Constellation Energy Nuclear Group, LLC: Nine Mile Point Units 1 and 2 Strike
PNO-IV-11-003E 07/26/2011 Fort Calhoun Station: Fort Calhoun Station Declaration of a Notification of Unusual Event Due to High River Level – (Update)
PNO-I-11-002A 07/19/2011 PSEG: Salem Generating Station Notification of Unusual Event Due to Reactor Coolant System Leak Greater than 10 GPM and Technical Specifications Required Shutdown - (Update)
PNO-I-11-002 07/15/2011 PSEG: Salem Generating Station Notification of Unusual Event Due to Reactor Coolant System Leak Greater than 10 GPM and Technical Specifications Required Shutdown
PNO-IV-11-005A 07/13/2011 Cooper Nuclear Station: Cooper Nuclear Station Declaration of a Notification of Unusual Event Due to High River Level - (Update)
PNO-I-11-001 07/11/2011 Constellation Energy Nuclear Group, LLC: Nine Mile Point Units 1 and 2 Strike

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