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ARTICLE ARCHIVE

Safety

Nuclear safety is, of course, an oxymoron. Nuclear reactors are inherently dangerous, vulnerable to accident with the potential for catastrophic consequences to health and the environment if enough radioactivity escapes. The U.S. Nuclear Regulatory Commission, Congressionally-mandated to protect public safety, is a blatant lapdog bowing to the financial priorities of the nuclear industry.

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Entries by admin (362)

Thursday
Feb072013

Risky power uprates at Exelon reactors cancelled, albeit due to financial troubles

Reuters has reported that Exelon, in an effort to shore up its credit rating and shareholder dividends, has cancelled $2.3 billion in atomic reactor power uprates and other projects.Since 1977, NRC has rubberstamped nearly 150 power uprates at U.S. reactors, increasing their output by 6,823.4 Megawatts-thermal.  That's around 2,275 Megawatts-electric worth (2/3rds of the heat generated by splitting atoms is lost -- discharged to surface waters and/or the atmosphere -- as "waste heat"). This, despite the inherent increase in safety risks. Power uprates at an IL reactor led to so much vibration that a giant steam dryer crashed to the floor. Fortunately, no one was injured or killed. A 20% power uprate at Vermont Yankee led to a cooling tower collapse, as well as an explosion and fire, when long-dormant metallic slag was picked up by the increased steam flow pressure and slammed into a transformer (photo left).

In related news, Exelon has cut its dividend by 41%, as NRC investigates "deliberate" deception regarding decommissioning funds.

Thursday
Feb072013

Markey letter to the Nuclear Regulatory Commission on hydrogen explosions/vents

U.S. Rep. Ed Markey (D-MA), Ranking Member of the House Natural Resources CommitteeThe Office of U.S. Representative Ed Markey (D-MA, pictured left), Ranking Member of the House Natural Resources Committee, has circulated the following statement:

"Today, Rep. Markey sent a letter to NRC Chairman Allison Macfarlane urging NRC to follow the recommendations of its technical staff and require filtered vents on some nuclear reactors in order to facilitate the prevention of the sort of hydrogen explosions that occurred during the Fukushima meltdowns. The letter also conveyed Rep. Markey’s concerns about ongoing potentially misleading statements made by some NRC personnel concerning the ability of U.S. nuclear reactors to prevent a dangerous buildup of hydrogen gas in nuclear containment structures in the event of a nuclear accident."

Wednesday
Feb062013

Boxer and Markey urge NRC launch investigation re: San Onofre steam generator installation despite known flawswer

The Honorable U.S. Senator Barbara Boxer (D-CA)The Honorable Barbara Boxer (Democrat from California, Chairwoman of the U.S. Senate Environment and Public Works Committee, photo at left) and Ed Markey (Democrat from Massachusetts, Ranking Member of the U.S. House Natural Resources Committee) today sent a letter to U.S. Nuclear Regulatory Commission Chairwoman Allison Macfarlance, demanding an investigation into new revelations that Mitsubishi Heavy Industries and Southern California Edison knew that replacement steam generators were significantly flawed, before they were installed at the San Onofre Units 2 & 3 reactors in San Clemente, CA, at a cost to California ratepayers of $671 million. Additional costs approaching $1 billion have accrued over the past year, since San Onofre 2 & 3 were forced to shut down due to the replacement steam generator tube degradation.

Sen. Boxer and Rep. Markey's letter begins:

"We have become aware of new information contained in a 2012 Mitsubishi Heavy Industries (MHI) document entitled "Root Cause Analysis Report for tube wear identified in the Unit 2 and Unit 3 Steam Generators of San Onofre Generating Station" (Report).

We strongly urge the Nuclear Regulatory Commission (NRC) to promptly initiate an investigation concerning the troubling information contained in this Report.

The Report indicates that Southern California Edison (SCE) and MHI were aware of serious problems with the design of San Onofre nuclear power plant's replacement steam generators before they were installed. Further, the Report asserts that SCE and MHI rejected enhanced safety modifications and avoided triggering a more rigorous license amendment and safety review process..."

Friends of the Earth (FOE) has petitioned NRC for a license amendment proceeding to address the un-analyzed safety risks associated with the major -- and faulty -- design changes carried out by MHI and SCE. FOE recently launched a t.v. ad, "No Way Out," about the impossibility of evacuating the 8.5 million Californians living within 50 miles of San Onofre if a radiological disaster occurs.

While San Onofre Unit 3 appears destined for permanent shutdown, due to its severe steam generator tube damage, SCE is seeking permission from NRC to restart San Onofre Unit 2, and run it at 70% power, despite its own severe steam generator tube damage.

Wednesday
Feb062013

Entergy Watch: UBS predicts "real retirement risk for units such as Vermont Yankee and FitzPatrick in '13"

Like Dominion's Kewaunee in WI, Entergy's dangerously age-degraded Fukushima Daiichi twins Vermont Yankee, Pilgrim, and FitzPatrick may not be able to turn a profit while also making post-Fukushima upgrades and other needed safety repairsIn a report for shareholders, dated Feb. 4th by UBS Securities LLC, UBS "reiterate[s] expectations for nuclear retirements" in the Entergy Nuclear merchant fleet, due to low to negative free cash flow. UBS highlights that "We see Vermont Yankee as the most tenuously positioned," but adds "Fitzpatrick (sic) in upstate NY increasingly appears at risk as well," and "Pilgrim could be at risk too, depending on market development in New England." The report is based on a Feb. 2nd meeting between UBS analysts and Entergy Nuclear's new CEO, Leo Denault, and the rest of the Entergy management team. 

A large part of the UBS report then goes on to discuss the critical importance of decommissioning costs to Entergy shareholders, if/when Vermont Yankee (VY), FitzPatrick, and/or Pilgrim (near Boston) permanently shutdown.

UBS fails to mention that VY, FitzPatrick, and Pilgrim are General Electric Mark I Boiling Water Reactors, identical in design to Fukushima Daiichi Units 1 to 4. VY (nearly 41 years old), FitzPatrick (almost 39), and Pilgrim (around 41) are also age-degraded reactors, deep into their break-down phase, the same vintage as Fukushima Daiichi.

UBS did mention, however, in its "Statement of Risk," that "As a nuclear operator, Entergy is also subject to headline risk. We believe a nuclear accident (even in a non-Entergy nuclear plant) or a change in the Nuclear Regulatory Commission/Environment (sic) Protection Agency regulations could have a negative impact on our estimates."

NRC post-Fukushima "lessons learned" safety upgrades, such as the requirement for "hardened vents" at U.S. Mark Is like VY, FitzPatrick, and Pilgrim, could easily cost Entergy tens of millions of dollars per reactor to implement.

UBS does also mention the fact that VY (at 605 Megawatts-electric), FitzPatrick (838 MW-e), and Pilgrim (688 MW-e) are relatively small-sized, single reactor nuclear power plants, which several analysts have pointed out makes them most vulnerable to "early retirement." But this is a misnomer, given the fact that their initial 40-year operating licenses have already expired, and they are now operating thanks only to U.S. Nuclear Regulatory Commission (NRC) 20-year license extension rubberstamps. Dominion's 556 MW-e Kewaunee atomic reactor in WI serves as the "canary in the coal mine," showing the vulnerability of small, single reactor nuclear power plants to permanent shutdown due to "economic reasons" (such as the inability to make a profit while making hugely expensive, major safety repairs, for example). Dominion Nuclear announced last October that Kewaunee would permanently close in mid-2013.

The UBS report also discusses the future, or lack thereof, for Entergy's Indian Point (IP) Unit 2 (nearly 40 years old) & 3 (almost 38 years old) reactors near New York City. UBS highlights that "Building the case for IP remains centered on economic case," but concludes "we perceive limited ability to do so currently with NY gov't officials." New York Governor, Andrew Cuomo, has long called for IP's closure. UBS also highlights that "Relicensing remains bottom line on IP future," specifically the NRC Atomic Safety (sic) and Licensing Board 20-year license extension proceeding, and the New York Department of Environmental Protection (DEP) State Pollutant Discharge Elimination System (SPDES) water permit. The former is being contested not only by NY AG Eric Schneiderman's office, but also by such environmental groups as Riverkeeper and Clearwater (a member group of the Indian Point Safe Energy Coalition (IPSEC)). The latter could result in Entergy being required to build cooling towers, at a cost of hundreds of millions of dollars, to prevent large-scale, ecologically destructive thermal pollution of the Hudson River (a full two-thirds of the 6,432 Megawatts-thermal heat generated at the Indian Point nuclear power plant has, for decades, simply been dumped into the Hudson River).

UBS also concludes that Entergy's underlying nuclear business is "fundamentally un-financeable on a stand alone basis." UBS highlights that despite it being "the second largest nuclear power generator in the United States," Entergy's "[n]uclear business is sub-scale," and that "eventual spin-merge or JV [joint venture]" is "certainly a possibility." UBS reports "CEO Denault, in his first day on the job, suggested that in 5 years time the EWC [Entergy Wholesale Commodities] business would belong [as] part of a bigger portfolio -- either under Entergy ownership or otherwise." UBS summarizes that Entergy's "[g]oal is to gain greater scale in [nuclear] generation," and "ETR [Entergy] will either acquire or divest the [nuclear] generation subsidiary over Denault's tenure." UBS does not speculate as to which other atomic reactors Entergy might acquire, nor which other nuclear utilities might acquire Entergy in the next several years.

Hopefully, Entergy's VY, FitzPatrick, Pilgrim, and Indian Point atomic reactors will permanently shutdown long before then, along with the rest of its dirty and dangerous dozen atomic reactors across the U.S.

Wednesday
Jan232013

Troubled Perry atomic reactor suffers yet another incident, but NRC refuses to lower its safety status designation

NRC's file photo of the Perry nuclear power plant on the Lake Erie shore.FirstEnergy Nuclear Operating Company's (FENOC) Perry atomic reactor on the Lake Erie shore of northeast Ohio near Cleveland -- named after an American War of 1812 commodore who captured the British navy two centuries ago in a decisive battle at Port Clinton, Ohio -- was already on the U.S. Nuclear Regulatory Commission's (NRC) short list of worst-run reactors in the country.

Just several days ago, NRC issued a press release admitting that, even though its regulations require it to lower Perry's safety status designation yet further, thus increasing the agency's regulatory oversight, it had chosen not to. Perry has had ongoing problems with worker radiological safety, but recently also experienced a security problem that NRC has described as more than minor in significance ("greater-than-green" in obscure NRC Nukespeak). As is its habit, NRC has invoked "safeguards information," and has refused to divulge any more information about the security breach. All this should have resulted in NRC lowering Perry's safety status from "Column 3" to "Column 4," thus increasing inspections. But NRC attempted to justify its decision to deviate from regulations, by pointing out that the worker radiation protection problems are supposedly on the mend.

Ironically, late last night, Perry experienced an incident that deepens public concern about reactor risks at the troubled plant. An NRC "Current Event Notification" published today describes Emergency Core Cooling System injection, Reactor Protection System actuation, High Pressure Core Spray system actuation and injection, and Reactor Core Isolation Cooling system actuation and injection, all in order "to maintain reactor coolant level" upon low reactor water level indications. This all took place while the reactor was operating at full power.

In addition to Perry, FENOC also owns and operates two reactors at Beaver Valley nuclear power plant in Shippingport, PA, as well as one reactor at Davis-Besse nuclear power plant near Toledo. Beyond Nuclear has worked with an environmental coalition for over two years to resist the 20-year license extension rubberstamp sought by FENOC from NRC at Davis-Besse.