Hazardous plan for Peel Ports to take over the decommissioning of Britain’s dead nuclear submarines
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Ferret 17th Nov 2020. The company that runs the port at Hunterston in North Ayrshire wants to useit to break up the radioactive hulks of defunct nuclear submarines, The Ferret can reveal. A plan by Peel Ports, released under freedom of information law, discloses that the firm sees “opportunities” for military submarine decommissioning at Hunterston.
But the idea has brought condemnation from politicians, environmental and community groups. They warn that the transport and dismantling of submarines would be “potentially hazardous” and could cause “significant environmental damage”. The 50-strong group of nuclear free-local authorities (NFLA) in the UK pointed out that prolonged public consultations had resulted in
agreement that decommissioning should only take place at Rosyth and Devonport. “If Peel Ports is lobbying for a change in that policy to undertake this work at Hunterston port, we would be concerned,” said NFLA Scotland’s convenor, SNP Glasgow councillor, Feargal Dalton. There were “complicated and potentially hazardous transport issues of moving
submarines from the east to the west coast of Scotland, and the required level of expertise to do this,” he argued. “It would also require a new consultation process at a time when the last one took years to deliver. I doubt the Ministry of Defence would like to reopen that process – and if they do, we and others will robustly challenge any significant change that increases the hazards to this operation.” https://theferret.scot/hunterston-peel-ports-nuclear-submarines/ |
Russia shuts down West Russian nuclear reactor
Russia retires Leningrad 2 RBMK, 10 November 2020
The Leningrad 2 nuclear power unit in in Sosnovy Bor in Western Russia was shut down permanently today. The RBMK, which has been in operation for 45 years, is to be replaced by Leningrad II-2, a VVER-1200, which on 6 November received regulatory approval to start pilot operation…… https://www.world-nuclear-news.org/Articles/Russia-retires-Leningrad-2-RBMK
Dismantling of Trawsfynydd nuclear power plant held back due to coronavirus outbreak
 Covid outbreak at former Trawsfynydd nuclear power plant, BBC 11 Nov 20,
Work has been scaled back on the site of former nuclear power station following an outbreak of Covid. Magnox said a “small number” of employees tested positive at the Trawsfynydd site in Gwynedd, where they are working to remove nuclear reactors and towers. Those affected and others found through track and trace are self-isolating. It said some key work will continue on site but other staff can work from home. ………. T https://www.bbc.com/news/uk-wales-54904337rawsfynydd was shut down in 1991 after operating for a quarter of a century.
The twin reactors will become the first in the UK to be fully decommissioned. Over 20 years the remaining reactor buildings will be demolished, while a new low-level radioactive waste store is built on the site to hold the material. https://www.bbc.com/news/uk-wales-54904337 |
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How the iconic domes of San Onofre nuclear station will be dismantled
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How and when the twin domes at San Onofre nuclear plant will come down, Key pieces of the reactor vessels will be
 removed via underwater operations San Diego Union Tribune. By ROB NIKOLEWSKI, OCT. 23, 2020
They are perhaps the most distinctive features of the San Onofre Nuclear Generating Station — the pair of containment domes from Units 2 and 3, rising nearly 200 feet above the ground on the northern edge of San Diego County that every motorist sees on the drive along Interstate 5.
But in about six years, the twin domes will be gone — obliterated — provided the schedule holds true for dismantling the now-shuttered plant, known as SONGS. Taking down the domes is part of a much larger project that will remove all but just a few structures at the plant, which produced electricity from 1968 to late 2012 and is being decommissioned by the federal government’s Nuclear Regulatory Commission. Southern California Edison operates the facility but the massive job of taking the plant apart — and removing the heavy equipment inside it — is being done by a general contractor named SONGS Decommissioning Solutions. The group is a joint venture of the Los Angeles-based infrastructure and engineering company AECOM and Energy Solutions, a Salt Lake City firm that specializes in disposing of nuclear material. ……….. The costs for dismantling SONGS will come from about $4.5 billion in existing decommissioning trust funds. The money has been collected from ratepayers and invested in dedicated trusts. According to Edison, customers have contributed about one-third of the trust funds while the remaining two-thirds have come from returns on investments made by the company…….. What will be left at SONGS? When the eight-year dismantlement project is completed, all that will remain will be the two dry storage sites; a security building with personnel to look over the waste; a seawall 28 feet high, as measured at average low tide at San Onofre Beach; a walkway connecting two beaches north and south of the plant, and a switchyard with power lines……. The canisters of nuclear waste remain between I-5 and the Pacific because the federal government has not found a place to put all the used-up commercial fuel that has stacked up at some 121 sites in 35 states. There are some 80,000 metric tons of waste from commercial nuclear plants across the country. SONGS accounts for 1,609 metric tons, or about 3.55 million pounds. https://www.sandiegouniontribune.com/business/story/2020-10-23/twin-domes-at-san-onofre-nuclear-plant-expected-to-come-down-in-2026 |
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Speeded up decommissioning of Crystal River nuclear reactor – some concerns about this
Duke nuclear plant demolition timeline cut from half-century to 7 years, By KEVIN SPEAR, ORLANDO SENTINEL |OCT 07, 2020 Duke Energy is poised to begin demolition of its shuttered nuclear plant, with a timeline reduced from nearly six decades to seven years because of a drop in costs.
Duke’s 890-megawatt reactor near Crystal River at the Gulf of Mexico has been out of commission since 2009, when a construction accident crippled the containment building. In 2015, facing a projected demolition cost of more than $1 billion, Duke was prepared to let the plant remain for 60 years before removing it.
But with the aging of nuclear power around the world and competitive advances in demolition technology, Duke is proceeding with a fixed contract of $540 million to remove the plant. That cost is to be covered by a trust fund of $717 million already paid for by the utility’s customers.
A newly formed company, Accelerated Decommissioning Partners, has begun engineering designs for demolition and is about to remove structures and infrastructure outside of the reactor building.
Accelerated Decommissioning Partners is a joint venture that includes NorthStar Group Services, which describes itself as the world’s largest demolition company, with services ranging from hurricane cleanup to asbestos removal, and is currently taking down the Vermont Yankee Nuclear Power Station.
The other partner is Orano USA, a supplier of nuclear materials and services. In 2018, the company transferred the Crystal River plant’s used nuclear fuel from a storage pool to containment within dry casks that are now stored in concrete bunkers at the plant site. There is no designated disposal facility in the U.S. for used fuel, and the dry casks could remain at Duke’s Crystal River site for years or decades………
In 2009, a major effort to extend the life of the the reactor damaged the reactor-containment building’s 3-foot-thick wall. After botched repair attempts, the plant was declared economically beyond repair.
The additional cost that customers had to absorb for the attempted upgrade and trying to fix the containment building was an estimated $1.7 billion, according to the Florida Office of Public Counsel, a legislatively created agency that serves as an advocate for utility customers.
Other lost nuclear costs would arise from Duke’s move to build a $22 billion plant in Levy County. That initiative was announced in 2006 but abandoned within a decade, resulting in costs that customers had to absorb of more than $870 million .
Charles Rehwinkel of the Office of Public Counsel said Duke’s contract with Accelerated Decommissioning Partners should have included better protections in case of demolition or financial problems.
“We remained concerned that this process, which is fairly new, could have a problem down the road,” Rehwinkel said. “The problems we would be concerned about would be cost overruns and if they get part way through the process in an area where there is still contaminated metal components and there is a bankruptcy or some halt that leaves them in the position of Duke having to get somebody else to come in.”
Edward Lyman, director of nuclear power safety at the Union of Concerned Scientists, said there isn’t much track record yet for the kind of accelerated decommissioning and demolition being performed at Duke’s plant.
But his initial concern is that Duke’s fixed-price contract with the joint venture leaves little flexibility for dealing with unexpected challenges.
“They are going to have a strong incentive to minimize cost and that could potentially come at the cost of safety,” Lyman said……..
The most challenging work will involve the reactor vessel, a cylindrical assembly the size of a semitruck, with steel walls at least 5 inches thick.
Roberts said crews will cut the vessel into pieces while submerged underwater, which blocks radiation.
Cuts will be done with robots and other remotely controlled machines with a variety of band saws, diamond-wire saws and high pressure water jets with abrasive ingredients. Cutting will be according to specific sizes, shapes and weights.
While still underwater, pieces will be inserted into canisters, which, in turn, will be inserted into steel casks for shipment “more than likely by rail” to a disposal site in west Texas, Roberts said…… https://www.orlandosentinel.com/news/environment/os-ne-duke-nuclear-plant-demolition-20201007-oa4bvubxanevnof2dzyzyshg2a-story.html
Ikata nuclear reactor to be shut down – 40 year decommissioning process
Regulator approves Ikata 2 decommissioning plan, WNN, 07 October 2020 Japan’s Nuclear Regulation Authority (NRA) today approved Shikoku Electric Power Company’s decommissioning plan for unit 2 of its Ikata nuclear power plant in Ehime prefecture. Decommissioning of the unit is expected to be completed by 2059.
Ikata 2 is a 538 MWe pressurised water reactor that began operating in March 1988. It was taken offline in January 2012 for periodic inspections. Shikoku announced in March 2018 that it did not plan to restart the reactor. It said the cost and scale of modifications required to upgrade the 40-year-old unit to meet the country’s revised safety standards made it uneconomical to restart it. ……….
According to the plan, decommissioning of the unit will take about 40 years and will be carried out in four stages. The first stage, lasting about 10 years, will involve preparing the reactor for dismantling (including the removal of all fuel and surveying radioactive contamination), while the second, lasting 15 years, will be to dismantle peripheral equipment from the reactor and other major equipment. The third stage, taking about eight years, will involve the demolition of the reactor itself, while the fourth stage, taking about seven years, will see the demolition of all remaining buildings and the release of land for other uses……. https://www.world-nuclear-news.org/Articles/Regulator-approves-Ikata-2-decommissioning-plan
Iowa’s last nuclear power station to close – 60 years at least to decommission it
 What’s next for Duane Arnold nuclear plant?, THe Gazette, 25 Sep 20,
Derecho damage prompts nuclear plant not to restart, Duane Arnold Energy Center near Palo did not restart after the Aug. 10 derecho caused “extensive” damage to its cooling towers…….. Why is it being decommissioned?
Dean Curtland, plant director, told The Gazette in 2018 Iowa’s changing energy landscape has overshadowed and outpriced Duane Arnold. Closing the facility could save NextEra about $300 million over 21 years, with cost savings coming as early as 2021. That translates to about $42 per residential customer. What impact did the derecho have on its decommissioning? NextEra Energy already was planning on decommissioning Duane Arnold this year. When the derecho caused “extensive” damage to the facility’s cooling towers, NextEra opted against restarting the plant so close to the Oct. 30 decommissioning date. Replacing the cooling towers with fewer than three months until decommissioning was “not feasible,” Robbins said last month. What is happening now that the plant is shut down? The decommissioning process is underway as employees remove nuclear material from the facility “There’s the nuclear fuel that was in the reactor and then nuclear fuel that was in a pool — what is called the spent fuel pool,” Robbins said. “We’ve been moving a lot of the fuel out of that pool and putting it in a storage facility on the site.” How long will the decommissioning process take? The process involves several steps, starting with removing nuclear material from the site. After nuclear material goes into the spent fuel pool, it can go into dry storage. After all the fuel is removed, officials have 60 years to decommission the facility………. Are there any other nuclear power plants in Iowa? Duane Arnold was the last nuclear power plant in the state. The closest nuclear power plant is in Cordova, Ill., about 20 miles northeast of Moline along the Mississippi River. Comments: (319) 398-8394; john.steppe@thegazette.com https://www.thegazette.com/subject/news/business/duane-arnold-energy-center-nuclear-plant-iowa-palo-ia-decommission-20200925 |
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Britain’s National Audit Office warns on costs of cleaning up old nuclear plants
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Estimates of the cost to clear up 12 of the UK’s earliest nuclear power sites have increased by nearly £3bn since 2017 and there remains “inherent uncertainty” over the final bill, the country’s public spending watchdog has warned. The National Audit Office on Friday published its latest report into the long-running saga around the decommissioning of two research sites and 10 early nuclear power stations in Britain, which came to be known as the “Magnox” plants due to the magnesium alloy that was used to cover the fuel rods inside their reactors. The spending watchdog also found that the costs to the taxpayer of a botched 2014 tender process to outsource the decommissioning to the private sector was £20m higher than when it last investigated three years ago.
Cleaning up the Magnox sites, which were built before privatisation and include Hunterston A in Scotland and Hinkley Point A in Somerset, has turned into a costly and torturous affair. In 2016 the High Court ruled the 2014 competition for a 14-year contract to decommission the sites — which had been awarded to Cavendish Fluor Partnership, or CFP, a joint venture between UK-based Babcock International and Fluor of the US — had been “fudged” by the Nuclear Decommissioning Authority, a body attached to the Department for Business, Energy and Industrial Strategy.
A year later ministers, acting on legal advice, terminated the arrangement with CFP nine years early and renegotiated a shorter contract that ran until the end of August 2019. Decommissioning of the sites was then brought in-house by the NDA. ………. https://www.ft.com/content/6f313c84-d314-4160-b124-a68c4e85be09
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UK. For thehighly radioactive Dounreay nuclear site, a mobile robot will be used to identify the toxic structures
Press & Journal 8th Sept 2020 A mobile robot will be used for the first time in one of the most contaminated and inaccessible parts of the Dounreay nuclear plant to provide vital information on the next steps in its decommissioning. The technology will provide the first images in decades from inside the Caithness site’s Fuel Cycle Area (FCA).
The FCA consists of two reprocessing plants, waste stores and laboratory facilities where spent nuclear fuel was examined and reprocessed. As part of the site clean up, Dounreay Site Restoration Ltd (DSRL) is working with the Robotics and Artificial Intelligence in Nuclear (Rain) Hub, a consortium of universities led by the University of Manchester, to explore ways to overcome some of
the challenges.
Hinkley Point B nuclear station could close down early – EDF
EDF Energy says UK’s Hinkley Point B nuclear plant could close earlier than planned
The 1 gigawatt (GW) plant in Somerset was due to be shut down permanently in early 2023. It began operation in 1976.
“It is possible we may need to move into defuelling within the next two years. We will review this decision in the same detailed way as we have with Hunterston B and expect to be able to confirm the outcome by the end of this year,” said a spokesman for EDF Energy, part of France’s EDF.
Last month, EDF Energy said it would start decommissioning its Hunterston B nuclear power plant in Scotland by January 2022 at the latest.
Both Hunterston B and Hinkley Point B have had issues with ageing, as cracks were found in graphite bricks which form reactor cores, prompting some industry experts to foresee their permanent closure soon.
Nearly all of Britain’s 9 GW nuclear fleet is composed of advanced gas-cooled reactors. A factor of ageing in that type of reactor is cracks in the graphite bricks.
Half of Britain’s eight operating nuclear power stations are due to move into decommissioning by March 2024, removing around 4 GW of power capacity…….. www.reuters.com/article/britain-nuclearpower/update-1-edf-energy-says-uks-hinkley-point-b-nuclear-plant-could-close-earlier-than-planned-idUSL8N2G65F8
Huge challenge to decontaminate Dounreay: ‘World’s deepest nuclear clean-up’.
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Dounreay: ‘World’s deepest nuclear clean-up’ to begin, The first work in a clean-up of a 1950s-built shaft at a nuclear power research complex is to begin this year. BBC News, 9 Sep 20,
The shaft plunges 65.4m (214.5ft) below ground and poses one of the biggest challenges in the demolition of Dounreay in Caithness.
Radioactive waste was disposed there from 1959 until 1977 when an explosion ended the practice.
Tackling the shaft has been described as the “world’s deepest nuclear clean-up”…….
A £7.5m contract has been awarded for the first steps in this work, due to begin in late autumn, and also to carry out similar engineering work at another site at Dounreay called the silo.
It is described as being like a swimming pool with a concrete roof and was also used for the disposing of radioactive waste.
Engineering firms Nuvia and Graham Construction have been awarded the contract for work that would eventually lead to the waste being removed.
David Hubbard, of Dounreay Site Restoration Ltd, said: “The shaft and silo contain solid waste and sludge which must be retrieved and repackaged for safe above-ground storage…..
Dounreay, near Thurso, was the UK site for the development of fast reactor research from 1955 to 1994.
The facility on the north Caithness coast is in the process of being closed down, demolished and cleaned up. https://www.bbc.com/news/uk-scotland-highlands-islands-54085592
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UK’s Dounreay nuclear power site, opened in 1955, closed 1994, cleaned up in 2333, if they’re lucky
Dounreay on Scottish north coast has been site of considerable radioactive leaks https://www.independent.co.uk/environment/nuclear-power-dounreay-scotland-thurso-decommissioning-radiation-a9680611.html Harry Cockburn, Thursday 20 August 2020 In 313 years’ time, 378 years after it first opened in 1955, and 339 years after it ceased operations in 1994, the 178-acre nuclear power facility site at Dounreay will be safe for other uses, a new report has stated.
Though the site on the north coast of Scotland was only home to functioning nuclear reactors for 39 years, the clean-up will take roughly ten times as long, with efforts already underway to clean up hazardous radioactive material.
The facility, near Thurso, was used by the government for research and testing of various types of nuclear reactors, including a “fast reactor” and those intended for use on nuclear submarines.
The first reactor at the site to provide power to the National Grid was the Dounreay Fast Reactor, which provided power between 1962 and 1977. A second reactor also pumped power into the grid between 1975 and 1994.
A draft report from the government’s nuclear decommissioning authority states the site will only be ready for other uses after the year 2333.
Over the next two years, Dounreay Site Restoration Limited has said it will undertake assessments of “installations, current and future disposals, areas of land contamination, sub-surface structures and other discrete site conditions” to determine “credible options for the site end state”.
A process of demolition of buildings and waste removal is already underway at the site, which has previously been used to store dangerous radioactive material.
Part of the demolition process has involved the use of a remote controlled robot nicknamed the “Reactosaurus”, a 75-tonne device with radiation-proof cameras, and robotic arms which are able to reach 12 metres into the reactors where they can operate an array of size-reduction and handling tools, including diamond wire and disks and hydraulic shears.
One of the areas targeted for waste removal is a highly contaminated area called the Shaft.
The water reacted violently with the sodium and potassium, throwing off the massive steel and concrete lids of the shaft, and littered the area with radioactive particles.
The dangerous pollution affected local beaches, the coastline and the seabed. Fishing has been banned within a two-kilometre radius of the plant since 1997.
Milled shards from the processing of irradiated plutonium and uranium, are roughly the size of grains of grains of sand. The most radioactive of the particles are believed to be potentially lethal if ingested. These small fragments are known to contain caesium-137, which has a half-life of 30 years, but they can also incorporate traces of plutonium-239, which has a half-life of over 24,000 years.
Army dismantling long dead nuclear power plant at Fort Belvoir
Army dismantling deactivated nuclear power plant at Fort Belvoir, INSIDE NOVA, Aug 28, 2020
Wow! Only the bare 313 years before the Dounreay nuclear power site could be used for anything else!
uses in 313 years’ time, according to a new report. Dounreay, near Thurso,was the UK site for the development of fast reactor research from 1955 to
1994. The facility on the north Caithness coast is in the process of being
closed down, demolished and cleaned up. However, the Nuclear
Decommissioning Authority said it would be 2333 before the 148-acre site is
safe for reuse. The date forms part of the authority’s newly-published
draft strategy. Waste is to be removed from the Shaft by 2029, according to
the NDA report.
https://www.bbc.co.uk/news/uk-scotland-highlands-islands-53848766
Independent 20th Aug 2020, In 313 years’ time, 378 years after it first opened in 1955, and 339
years after it ceased operations in 1994, the 178-acre nuclear power
facility site at Dounreay will be safe for other uses, a new report has
stated. Though the site on the north coast of Scotland was only home to
functioning nuclear reactors for 39 years, the clean-up will take roughly
ten times as long, with efforts already underway to clean up hazardous
radioactive material. Part of the demolition process has involved the use
of a remote controlled robot nicknamed the “Reactosaurus”, a 75-tonne
device with radiation-proof cameras, and robotic arms which are able to
reach 12 metres into the reactors where they can operate an array of
size-reduction and handling tools, including diamond wire and disks and
hydraulic shears. One of the areas targeted for waste removal is a highly
contaminated area called the Shaft. In 1977, a catastrophic leak allowed
seawater to flood a 65-metre-deep shaft which was packed full of
radioactive waste as well as more than 2kg or sodium and potassium.
Army finally tearing down Fort Belvoir’s nuclear plant
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No Nuclear in Cwm Llynfi! Stop the nuclear power station near Maesteg.
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