Skip to main content

Home/ Open Intelligence / Energy/ Group items tagged britain

Rss Feed Group items tagged

D'coda Dcoda

UK public confidence in nuclear remains steady despite Fukushima [09Sep11] - 0 views

  • The accident at Fukushima in Japan in March this year seems to have had little overall impact on the UK public's confidence in nuclear power, according to a poll.The survey, carried out by Populus last month and commissioned by the British Science Association, found that 41% of respondents agreed the benefits of nuclear power outweighed the risks, up from 38% in 2010 and 32% in 2005. Those who said that the risks greatly or slightly outweighed the benefits of nuclear power in 2010 numbered 36%, and in 2011 this dropped to 28% of respondents.
  • "It's genuinely surprising to me that views have returned to these early 2010 levels quite so quickly and slightly more positively," said Nick Pidgeon of the University of Cardiff, who discussed the findings of the latest poll at a briefing to mark the launch of the British Science Festival, which starts in Bradford on Saturday. "There's been a lot of speculation about the impacts of Fukushima on public attitudes – this is the first fully independent study we've had in the UK."Though overall support was up, there was a striking difference between men and women, with 53% of men in favour of nuclear power but only 21% of women supportive. "If you dig into the data, you see that men in particular become much more confident about nuclear energy," said Pidgeon.Monbiot effectHe also said that blanket media coverage and commentary – something he referred to as the "George Monbiot effect" – may have had a positive effect on public attitudes because, despite the severity of the crisis, no one has so far died.
  • Populus interviewed 2,050 adults between 26 and 29 August and weighted its results to ensure they were representative of the British population.Overall, the support for nuclear power has been gradually increasing for about 10 years, said Pidgeon, and, in the past five years, the majority of people in Britain has come to support the renewal of the nuclear programme.Pidgeon said that polls in the direct aftermath of the Fukushima accident had showed a dip in support for nuclear in the UK and elsewhere, though confidence did not collapse. "There were still more people, even immediately afterwards, in favour of nuclear energy than against in Britain," he said.
  • ...2 more annotations...
  • The focus of potential concerns has also shifted in the wake of Fukushima. "If you asked people why they were unhappy about nuclear energy a year ago, they would have brought waste up," said Pidgeon. "What is clear from other polling is that accidents have gone to the top of what people are now concerned about with nuclear energy, the waste has dropped further down."
  • Bryony Worthington, a Labour peer and environmental campaigner, said that for the general public the perception of the main cause of the Fukushima problem had not been the design of the reactor but the siting of the power plant. "Most people said, hang on, why did you put them all on that eastern seaboard, which is a seismically unstable region?"The withdrawal of support for future nuclear power stations by the German government, she said, was political. "For Angela Merkel to reverse her decision and phase out the nuclear, Fukushima gave her a good opportunity to do it. She was already under huge political pressure to do that and Fukushima was just the trigger she found politically expedient to do it."
D'coda Dcoda

Chris Huhne: Nuclear power a costly failure [15Oct11] - 0 views

  • Britain is still paying for nuclear-generated electricity consumed a generation ago because of the hidden costs of an industry reared on the expectation of public subsidies, the Energy Secretary Chris Huhne said yesterday. He told the Royal Society in London that the nuclear industry and the Government should show that they have learned from their past mistakes if they are to retain public support for a renaissance in nuclear power. “And some of those mistakes are not small,” he said in a keynote address. “Nuclear policy is a runner to be the most expensive failure of post-war British policy-making, and I am aware that this is a crowded and highly contested field.” http://www.independent.co.uk/news/science/chris-huhne-nuclear-power-a-costly-failure-2370340.html
Jan Wyllie

EDF 'in big trouble' says French nuclear expert - Telegraph - 0 views

  • Financial problems facing EDF could force the French energy giant to pull out of the £14bn project to build the first of a new generation of nuclear power plants in Britain, a French expert has warned.
D'coda Dcoda

Fumbling gov't faces huge challenges in 2012 [27Dec11] [ - 0 views

  • Hiroaki Koide, an assistant professor at the Kyoto University Research Reactor Institute (KURRI), is someone who has made one of the strongest impressions on me among the experts I've spoken to about the ongoing Fukushima nuclear disaster. The public's views toward Koide have changed by the minute. He went from first being considered a nuclear "maverick" to a "pioneer" and finally to "one polemicist from the anti-nuclear camp." His ever-changing reputation has been symbolic of Japan's wavering between the promotion of nuclear energy and independence from it.
  • Last week, a government insider I've known for years wondered aloud whether they couldn't "drag someone like Koide" into the process of drawing up the government's new energy policy.
  • When I asked Koide about this, however, he responded: "I'm completely disillusioned with politics. No matter what committees are set up, nothing's going to change while politics continues to be carried out the way it is now. I won't accept a position from the government. When it comes to one-on-one public debates, however, I'm willing to go anywhere to participate."
  • ...7 more annotations...
  • Many of the experts who have been involved in the government's related committees since before the outbreak of the nuclear crisis on March 11 are pro-nuclear energy advocates. The inclusion of some anti-nuclear experts in discussions since March has created a bit of a stir, but they're still vastly outnumbered. Talks remain under the tight control of bureaucrats from the Ministry of Economy, Trade and Industry (METI) and the Ministry of Education, Culture, Sports, Science and Technology (MEXT), as well as staff dispatched from utility companies. The lineup is so skewed to nuclear energy promotion that it even gets a government insider anxious to get "someone like Koide" involved.
  • The government is now reviewing its energy policy in terms of a management overhaul at the stricken plant's operator, Tokyo Electric Power Co. (TEPCO), and comprehensive reform of the electric power system. It is beginning to look like TEPCO will be nationalized to ensure stable power supply, with the government obtaining at least two-thirds of TEPCO's shares. A final decision about the utility will be reached before account settlements for the fiscal year ending next March are made.
  • This scheme is a pipe dream. Nuclear power plants across the country are being stopped for regular inspections, with no clear prospects of them being restarted.
  • Winning the public over is the biggest obstacle that lies ahead for the government.
  • So what would happen if the debate over energy policy fails to pick up steam, and things proceed with the "nuclear village," a pro-nuclear collection of politicians, bureaucrats, academics and utilities, firmly in charge? A bureaucratic source offered the following vision: "Dependence on nuclear energy for our power supply can stay at (pre-March 11 levels of) 30 percent. This would still be lower than our original goal of achieving 50-percent dependence, so it would count as a 'reduction in nuclear dependence.' It would be acceptable to abandon the Monju fast-breeder project, but nuclear fuel reprocessing plants should be preserved. We would process MOX fuel from plutonium extracted from spent fuel, and export it at the same level as Britain and France."
  • The government may be able to come up with options, but it won't be able to reach a decisio
  • No one believes the government's recent announcement that "the crisis has been brought under control." This widespread mistrust is not something that one-sided rhetoric from government or business leaders can dispel.
Jan Wyllie

New French nuke plant beset by more delays [22Jul11] - 0 views

  • EDF's 1,650-megawatt Flamanville 3 nuclear reactor was already two years behind schedule and $2.4 billion over budget before Wednesday's announcement, in which the utility says it needs to carry out tougher safety inspections in the wake of the Fukushima nuclear disaster in Japan.
  • Citing "structural and economic reasons" for the new delays, the state-owned company sent notice its flagship plant's costs will increase to $9 billion due to the new requirements while its opening has been pushed back to 2016.
  • The latest cost overruns and delays are a blow to the French company and its hopes for the worldwide commercialization of a new type of nuclear reactor, known as a European Pressurized Reactor, manufactured by the French nuclear group Areva.
  • ...2 more annotations...
  • Progress on its new EPR is being closely monitored because of its plans to build four identical ones in Britain, the New Civil Engineer trade magazine reported.
  • The Flamanville EPR and another in Finland -- which is also facing delays and cost overruns -- were the targets of criticism
D'coda Dcoda

U.S. secretly asked Japan to help dump nuclear reactors [27Sep11] - 0 views

  • The United States secretly sought Japan's support in 1972 to enable it to dump decommissioned nuclear reactors into the world's oceans under the London Convention, an international treaty being drawn up at the time. Countries working on the wording of the pact wanted to specifically prohibit the dumping of radioactive waste at sea.
  • But Washington wanted to incorporate an exceptional clause in the case of decommissioned nuclear reactors. These facts came to light in diplomatic records held by the Foreign Ministry in Tokyo and released at the request of The Asahi Shimbun.
  • Japan did not offer a clear answer when it was approached by the United States on the issue. Eventually, however, Washington succeeded in incorporating the clause into the treaty. In 1972, the United States was already dismantling early-stage nuclear reactors that had been used for testing. However, the disposal method of large-scale nuclear reactors for commercial purposes had not been decided although it was an issue that could not be shelved indefinitely.
  • ...6 more annotations...
  • Since Japan, a key U.S. ally, had already started its own nuclear power generation program, Washington did not hesitate to seek Tokyo's backing for its request. It was apparent that the United States constructed nuclear reactors without having decided on disposal methods, forcing it to consider dumping them at sea after they were decommissioned.
  • The documents obtained by The Asahi Shimbun were signed by Japan's ambassador to Britain and designated as top secret. According to the records, a U.S. State Department official who was part of the U.S. delegation discussing the terms of the treaty, met his Japanese counterpart in November 1972. In that meeting, the official explained that the United States had a number of early-stage nuclear reactors which had reached their life spans. He said Washington was facing problems disposing of them.
  • The official noted that any attempt to bury the reactors on land would invite a public backlash. He also pointed to the financial difficulty of scientifically processing the reactors until the risk of radioactive contamination was totally eliminated. Then, the official said the only other option was to dump them at sea, and asked Japan for cooperation.
  • According to Kumao Kaneko, now aged 74 and then a member of the Foreign Ministry team involved in the negotiations, Japan did not take specific steps to assist the United States in this delicate matter. Eventually, during the general meeting of countries for the London Convention, the United States proposed incorporating a clause that would enable it to dump nuclear reactors at sea in exceptional cases in which all other means of disposal presented a risk to human health.
  • When presenting the proposal, the United States made no mention of its intention to dump its nuclear reactors at sea far into the future. The proposal was accepted. In the early 1970s, sea pollution was a huge international issue. Against that backdrop, countries worked feverishly to put the finishing touches on the London Convention. The treaty designated high-level radioactive substances as well as other materials, including mercury and cadmium, as waste whose dumping at sea is prohibited.
  • In 1993 revisions to the London Convention, the dumping of radioactive waste at sea was totally prohibited. However, the clause that approved of dumping in exceptional cases remained. For this reason, under the London Convention, it is possible for member countries of the treaty to dump radioactive waste at sea if they obtain the OK from the other parties as well as the International Atomic Energy Agency. According to the IAEA, the United States has not dumped radioactive waste at sea since 1970. Instead, it buries decommissioned nuclear reactors underground.
D'coda Dcoda

Experts split on how to decommission Fukushima nuclear plant [29Aug11] - 0 views

  • What is actually going to take place at the Fukushima No. 1 Nuclear Power Plant, where word is that the four reactors that were crippled in the Great East Japan Earthquake and tsunami will eventually be decommissioned? The Ministry of Economy, Trade and Industry's Nuclear and Industrial Safety Agency (NISA) defines "decommissioning" as the process of removing spent fuel from reactors and dismantling all facilities. Ultimately, the site of a decommissioned reactor is meant to be reverted into a vacant lot.
  • In 1996, the then Japan Atomic Energy Research Institute (JAERI) -- now the Japan Atomic Energy Agency (JAEA) -- finished decommissioning its Japan Power Demonstration Reactor. The decommissioning process of the Tokai Nuclear Power Plant in the Ibaraki Prefecture village of Tokai began in 1998 and is set to end in fiscal 2020, while the No. 1 and No. 2 nuclear reactors at the Hamaoka Nuclear Power Plant in the Shizuoka Prefecture city of Omaezaki are slated for decommissioning by fiscal 2036. Around the world, only around 15 nuclear reactors have thus far been dismantled.
  • The standard decommissioning process entails six major steps: 1. Remove spent fuel rods, 2. Remove radioactive materials that have become affixed to reactor pipes and containers, 3. Wait for radiation levels to go down with time, 4. Dismantle reactors and other internal vessels and pipes, 5. Dismantle the reactor buildings, and 6. Make the site into a vacant lot.
  • ...17 more annotations...
  • "Cleaning," "waiting," and "dismantling" are the three key actions in this process. Needless to say, this all needs to be done while simultaneously containing radioactive materials.
  • In the case of the Tokai Nuclear Power Plant, the first commercial plant to undergo decommissioning, spent fuel was removed over a span of three years beginning in 1998, and was transported to Britain for reprocessing. Dismantling of the facilities began in 2001, with current efforts being made toward the dismantling of heat exchangers; workers have not yet begun to take the reactor itself apart. The entire process is expected to be an 88.5-billion-yen project involving 563,000 people.
  • Hitachi Ltd., which manufactures nuclear reactors, says that it "generally takes about 30 years" to decommission a reactor. The Hamaoka Nuclear Power Plant's No. 1 and No. 2 reactors operated by Chubu Electric Power Co. are also expected to take about 30 years before they are decommissioned.
  • In the case of the Fukushima No. 1 Nuclear Power Plant, meanwhile, the biggest challenge lies in how to remove the fuel, says Tadashi Inoue, a research advisor at the Central Research Institute of Electric Power Industry (CRIEPI), a foundation that conducts research on energy and environmental issues in relation to the electrical power industry.
  • "we must deal with rubble contaminated with radioactive materials that were scattered in the hydrogen blasts and treat the radiation-tainted water being used to cool nuclear fuel before we can go on to fuel removal."
  • Currently, the Fukushima plant's operator, Tokyo Electric Power Co. (TEPCO), is desperately trying to treat the contaminated water. Huge challenges remain with regards to the contaminated rubble, as radiation levels of over 10 sieverts per hour were found near outdoor pipes on the plant grounds just the other day. Exposure to such high levels would mean death for most people.
  • Each step in the process toward decommissioning is complicated and requires great numbers of people. It's a race against time because the maximum amount of radiation that workers can be exposed to is 250 millisieverts.
  • The breached reactor core is a bigger problem. It is believed that raising water levels inside the reactor has been difficult because of a hole in the bottom of the vessel. It will be necessary to plug the hole, and continue filling the vessel with water while extracting the melted fuel. How to fill the vessel with water is still being debated. If the reactor can be filled with water, steps taken after the 1979 Three Mile Island nuclear accident can serve as a guide because in that case, in which approximately 50 percent of the core had melted, workers were able to fill the reactor with water and remove the fuel within.
  • Two types of fuel removal must take place. One is to take out the spent fuel in the containment pools, and the other is to remove the melted fuel from the reactor cores. Because the radiation levels of the water in the spent fuel pools have not shown any significant changes from before the crisis, it is believed that the spent fuel has not suffered much damage. However, removing it will require repairing and reinstalling cranes to hoist the fuel rods out.
  • Prefacing the following as "a personal opinion," Inoue says: "Building a car that can protect the people inside as much as possible from radioactive materials, and attaching an industrial robotic arm to the car that can be manipulated by those people could be one way to go about it."
  • Inoue predicts that removal of spent fuel from the containment pools will begin about five years after the crisis, and about 10 years in the case of melted fuel from the reactor core. Work on the four reactors at the Fukushima plant will probably take several years.
  • "Unless we look at the actual reactors and take and analyze fuel samples, we can't know for sure," Inoue adds. Plus, even if workers succeed in removing the fuel, reprocessing it is an even more difficult task. A review of processing methods and storage sites, moreover, has yet to take place.
  • Meanwhile, at least one expert says he doesn't believe that workers will be able to remove the melted fuel from the crippled plant.
  • "If there's 10 sieverts per hour of radiation outside, then the levels must be much higher closer to the reactor core," says Tadahiro Katsuta, an associate professor at Meiji University and an expert in reactor engineering and reactor policy who was once a member of an anti-nuclear non-profit organization called Citizens' Nuclear Information Center (CNIC). "The fuel has melted, and we haven't been able to cool it consistently. If work is begun five or 10 years from now when radiation levels have not yet sufficiently gone down, workers' health could be at serious risk."
  • Katsuta predicts that it will probably take at least 10 years just to determine whether it is possible to remove the fuel. He adds that it could very well take 50 years before the task of dismantling the reactor and other facilities is completed.
  • What Katsuta has in mind is a Chernobyl-style concrete sarcophagus, which would entail cloaking the melted tomb with massive amounts of concrete. "How could we simultaneously dismantle four reactors that have been contaminated to the extent that they have by radioactive materials?" asks Katsuta. "Japan has little experience in decommissioning reactors, and this case is quite different from standard decommissioning processes. It's not realistic to think we can revert the site back to a vacant lot. I think we should be considering options such as entombing the site with concrete or setting up a protective dome over the damaged reactor buildings
  • what we face is a great unknown to all of mankind.
Dan R.D.

PhysOrg Mobile: Ukraine begins construction of new nuclear waste storage [05Oct11] - 0 views

  • Ukraine launched construction of a new facility Wednesday to stockpile industrial nuclear waste in the contaminated zone around its Chernobyl plant, site of the worst nuclear accident of the last 25 years. The facility will be launched in early 2013 and will only house Ukrainian nuclear waste, a large part of which is currently stored in "poorly equipped" locations, Chernobyl plant's spokeswoman Maya Rudenko said. "It will not be for material from nuclear plants" but waste from medical facilities and industries, she told AFP. The facility will have capacity for 400,000 capsules with such waste and have a lifespan of 50 years.
  • Construction of the storage facility is estimated to cost over 11 million euros ($14.6 million) to come from Britain, which will provide eight million British pounds ($12 million) and the European Commission (two million euros, or $2.6 million). The Chernobyl nuclear plant is located about 100 kilometres (60 miles) north of Kiev and close to the borders with Russia and Belarus. Its fourth reactor exploded in April 1986 with fallout hitting the three Soviet republics along with a large part of Europe.
D'coda Dcoda

Worst Nuclear Disasters - Civilian [15Apr11] - 0 views

  • The top civilian nuclear disasters, ranked by International Nuclear and Radiological Event Scale. Worst Civilian Nuclear Disasters 1. Chernobyl, Soviet Union (now Ukraine) April 26, 1986 INES Rating: 7 (major impact on people and environment)
  • The worst nuclear disaster of all time resulted from a test of the reactor’s systems. A power surge while the safety systems were shut down resulted in the dreaded nuclear meltdown. Fuel elements ruptured and a violent explosion rocked the facility. Fuel rods meted and the graphite covering the reactor burned. Authorities reported that 56 have died as a direct result of the disaster—47 plant workers and nine children who died of thyroid disease. However, given the Soviet Union’s tendency to cover up unfavorable information, that number likely is low.  International Atomic Energy Agency reports estimate that the death toll may ultimately be as high as 4,000. The World Health Organization claims that it’s as high as 9,000. In addition to the deaths, 200,000 people had to be permanently relocated after the disaster. The area remains unsuitable for human habitation. 2. Fukushima, Japan March 11, 2011 INES Rating: 7 (major impact on people and environment) Following a 9.0 magnitude earthquake and tsunami, Japan’s Fukushima nuclear power facility suffered a series of ongoing equipment failures accompanied by the release of nuclear material into the air. The death toll for this currently is at two but is expected to rise and as of April 2011, the crisis still ongoing. A 12 mile evacuation area has been established around the plant.
  • 3. Kyshtym, Soviet Union Sept. 29, 1957 INES Rating: 6 (serious impact on people and environment) Poor construction is blamed for the September 1957 failure of this nuclear plant. Although there was no meltdown or nuclear explosion, a radioactive cloud escaped from the plant and spread for hundreds of miles. Soviet reports say that 10,000 people were evacuated, and 200 deaths were cause by cancer.
  • ...6 more annotations...
  • 4. Winscale Fire, Great Britain Oct. 10, 1957 INES Rating: 5 (accident with wider consequences) The uranium core of Britain’s first nuclear facility had been on fire for two days before maintenance workers noticed the rising temperatures. By that time, a radioactive cloud had already spread across the UK and Europe. Plant operators delayed further efforts in fighting the fire, fearing that pouring water on it would cause an explosion. Instead, they tried cooling fan and carbon dioxide. Finally, they applied water and on Oct. 12, the fire was out. British officials, worried about the political ramifications of this incident, suppressed information. One report, however, says that in the long run, as many as 240 may have died from accident related cancers. 5.
  • Three Mile Island, Pennsylvania, US March 28, 1979 INES Rating: 5 (accident with wider consequences) Failure of a pressure valve resulted in an overheating of the plant’s core and the release of 13 million curies of radioactive gases. A full meltdown was avoided when the plant’s designers and operators were able to stabilize the situation before contaminated water reached the fuel rods. A full investigation by the US Nuclear Regulatory Commission suggests that there were no deaths or injuries resulting from the incident.
  • 6. Golania, Brazil Sept, 1987 INES Rating: 5 (accident with wider consequences) Scavengers at an abandoned radiotherapy institute found a billiard ball sized capsule of radioactive cesium chloride, opened it and then sold it to a junkyard dealer. The deadly material was not identified for more than two year, during which time it had been handled by hundreds, including some who used the glittery blue material for face paint. Of the 130,000 tested, 250 were discovered to be contaminated and 20 required treatment for radiation sickness. Four died, including the two who originally found the capsule, the wife of the junkyard owner and a small girl who used the powder as face paint. 7. Lucens, Switzerland January 1, 1969 INES Rating: 5 (accident with wider consequences) When the coolant on a test reactor facility in a cave in Switzerland failed during startup, the system suffered a partial core meltdown and contaminated the cavern with radioactivity. The facility was sealed and later decontaminated. No known deaths or injuries.
  • 8. Chalk River, Canada INES Rating: 5 (accident with wider consequences) May 24, 1958 Inadequate cooling lead to a fuel rod fire, contaminating the plant and surrounding labs. 9. Tokaimura,Japan Sept. 30, 1999 INES Rating: 4 (accident with local consequences) The nuclear plant near Tokai had not been used for three years when a group of unqualified workers attempted to put more highly enriched uranium in a precipitation tank than was permitted. A critical reaction occurred and two of the workers eventually died of radiation exposure. Fifty six plant workers and 21 others also received high doses of radiation. Residents within a thousand feet of the plant were evacuated.
  • 10. National Reactor Testing Station, Idaho Falls, Idaho January 3, 1961 INES Rating: 4 (accident with local consequences) Improper withdrawal of a control rod led to a steam explosion and partial meltdown at this Army facility. Three operators were killed in what is the only known US nuclear facility accident with casualties. In addition to these, there have been a number of deadly medical radiotherapy accidents, many of which killed more people than the more commonly feared nuclear plant accidents: 17 fatalities – Instituto Oncologico Nacional of Panama, August 2000 -March 2001. patients receiving treatment for prostate cancer and cancer of the cervix receive lethal doses of radiation.[7][8] 13 fatalities – Radiotherapy accident in Costa Rica, 1996. 114 patients received an overdose of radiation from a Cobalt-60 source that was being used for radiotherapy.[9]
  • 11 fatalities – Radiotherapy accident in Zaragoza, Spain, December 1990. Cancer patients receiving radiotherapy; 27 patients were injured.[10] 10 fatalities – Columbus radiotherapy accident, 1974–1976, 88 injuries from Cobalt-60 source. 7 fatalities – Houston radiotherapy accident, 1980.Alamos National Laboratory.[18] 1 fatality – Malfunction INES level 4 at RA2 in Buenos Aires, Argentina, operator Osvaldo Rogulich dies days later.
Dan R.D.

Thorp nuclear plant may close for years | Environment | The Guardian - 0 views

  • The huge £1.8bn plant at Sellafield imports spent nuclear fuel from around the world and returns it to countries as new reactor fuel. But a series of catastrophic technical failures with associated equipment means Thorp could be mothballed at a cost of millions of pounds.
  • Thorp is contracted to reprocess more than 700 tonnes of spent nuclear fuel, most of it for Germany, which could sue if Sella­field does not return it on time.
  • The latest technical hitches are embarrassing for the government, which hopes to use Sellafield as the centre of a huge British nuclear industry, with the Cumbrian coast expected to host a new enormous waste depository as well as possibly two new nuclear power stations.
  • ...2 more annotations...
  • Closure could also slow the decommissioning of other nuclear reactors in Britain. Revenue from Thorp was expected to provide much of the £70bn conservatively estimated to be needed to decommission Britain's reactors and clean up the environment after 50 years of nuclear power. Most first-generation UK reactors are expected to have closed within 10 years.
  • To date, Thorp has completed about 6,000 tonnes of its initial order book and is now, largely as a result of the broken evaporators, limited to processing 200 tonnes a year – about a sixth of its original design capacity.
1 - 10 of 10
Showing 20 items per page