Chaos in Japan - Earthquake, Tsunami, Nuclear plant on fire...

If I can choose, I'd rather have one, that doesn't blow up and kill thousands, when people aren't paying attention for a minute.

And you cannot consider "the one" technology, when you know that its resources run out within the next 100-500 years. Assuming you want our civilization to survive longer than that. We only have this one chance, you know. A second industrial revolution won't happen, because we will be lacking the resources. Either we get it right this time, or we will end up stone age again.
 
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I'd say the exact opposite, we need to waste less money exploring every avenue and spend it instead on developing the one technology. Whether this is shale gas, coal or nuclear isn't really an issue but we need to pick something that we know *can* work and make it work well rather than chasing around trying to find the perfect solution.
Oh, the irony... bitter irony, that is.
 
Oh, the irony... bitter irony, that is.

This really isn't that complicated.

Say you have 5 concepts which you know are currently capable of completing a task and can be improved to complete that task more efficiently:

  • The current ad-hoc method spreads the available resources across all tasks. This should result in the best solution emerging, eventually, but with only a fifth of the resources this will take longer.
  • The alternative is to put all the resources into one or two options. You can't guarantee finding the best solution but you will achieve significant improvements significantly more quickly than the current method.
I will however clarify that when I talk about development i'm not talking about future technologies like fusion, i'm talking about development cash for the technologies of today which we can improve (nuclear, gas, coal, tidal, whatever).

And you cannot consider "the one" technology, when you know that its resources run out within the next 100-500 years. Assuming you want our civilization to survive longer than that. We only have this one chance, you know. A second industrial revolution won't happen, because we will be lacking the resources. Either we get it right this time, or we will end up stone age again.
Utter nonsense, technology continues to improve at an exponential rate so there is a good chance that 100 years from now we'll be developing power by a completely new mechanism anyway. It's all about generations of technology.

The power plants we build in the next 20 years need to keep the lights on for 50-80 years. After that it will be time to re-evaluate what technologies are evolving and select new ones to push forward to the stage that we can use them on a commercial scale. If at that point the exisiting technology remains the best option we stick with that until something else emerges.

Locking into one technology for centuries would be stupid, but never picking one and pushing it's development heavily is equally stupid.
 
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You might be right or wrong but you should consider one thing:

Things won't stay the same politically, geographically, ideologically or socially for the next 100 years. If you look back, 100 years ago Austria was considered a super power, Britain ruled most of the world, the USA were a potential enemy for the Brits in conquering the rest of the world, China still had an emperor, as did we Germans and Russia was ruled by the Tsar, who had just lost a war against Japan.

Have fun explaining the 20th century to a guy from 1911. You cannot predict the future, you can only survive it. Therefore everything we do, should be considered with long-term effects and sustainability.
 
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Things won't stay the same politically, geographically, ideologically or socially for the next 100 years. If you look back, 100 years ago Austria was considered a super power, Britain ruled most of the world, the USA were a potential enemy for the Brits in conquering the rest of the world, China still had an emperor, as did we Germans and Russia was ruled by the Tsar, who had just lost a war against Japan.

These are all great facts, but if your argument is 'lets not use nuclear, the future can't be trusted' then maybe we should stop having cars... they kill loads of people, or guns.. lets get rid of guns... and aircraft, think how many bombs were dropped from aircraft.

I'd also point out that the world changes you list have all killed far more people than nuclear accidents ever have or are likely to. So the argument ultimately comes down to 'terrible things happen all the time, so lets not do this because it could combine with something terrible and the result would be in some way a special sort of terrible not seen in the usual course of terrible'.
 
I'm with you on the "let's get rid of guns" stuff :p

And if there was a suitable replacement, I would also call to get rid of cars, aircrafts (would prefer beaming, really), etc. But with those examples we hardly have a choice, except going backwards in our technological development.

However, with new forms of producing electricity, we actually have the possibility to make a step FORWARD for a change. Because I see nuclear energy as an outdated technology. It's not "high tech" to me. It was high tech 50 years ago. But this view obviously isn't shared by everybody. Suits me, though. I live in a region, that will profit from alternative forms of producing energy. The first ones, who jump on the train, will get a technological edge. The train is already rolling. Jump onto it or leave it.

And while I wrote this, I saw that another 7.4 quake has shaken the north-east of Japan :( I only hope it didn't do any more damage...
 
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Quakes only kill poor people, Japan is fine. Tsunami warning for a 2 meter wave was later revoked.
 
Japan raises the level of the disaster from a 5/7 to 7/7.

http://www3.nhk.or.jp/daily/english/12_05.html

Japan to raise Fukushima crisis level to worst
The Japanese government's nuclear safety agency has decided to raise the crisis level of the Fukushima Daiichi power plant accident from 5 to 7, the worst on the international scale.

The Nuclear and Industrial Safety Agency made the decision on Monday. It says the damaged facilities have been releasing a massive amount of radioactive substances, which are posing a threat to human health and the environment over a wide area.

The agency used the International Nuclear and Radiological Event Scale, or INES, to gauge the level. The scale was designed by an international group of experts to indicate the significance of nuclear events with ratings of 0 to 7.

On March 18th, one week after the massive quake, the agency declared the Fukushima trouble a level 5 incident, the same as the accident at Three Mile Island in the United States in 1979.

Level 7 has formerly only been applied to the Chernobyl accident in the former Soviet Union in 1986 when hundreds of thousands of terabecquerels of radioactive iodine-131 were released into the air. One terabecquerel is one trillion becquerels.

The agency believes the cumulative amount from the Fukushima plant is less than that from Chernobyl.

Officials from the agency and the Nuclear Safety Commission will hold a news conference on Tuesday morning to explain the change of evaluation.
Tuesday, April 12, 2011 05:47 +0900 (JST)
 
IAEA update:

NISA reported on 14 April that among approximately 300 workers at the Fukushima Daiichi plant, 28 have received accumulated doses exceeding 100 mSv in the period related to this emergency. No worker has received a dose above Japan's guidance value of 250 mSv for restricting the exposure of emergency workers.
 
^ That is certainly a good sign, either of how much is leaking out of the reactors or of the quality management currently going on for the crews.
 
I have been doing some research upon the Insurance of these plants in Japan and in other parts of the world.

1. Oh errrr Mrs - but see bottom of the post:
Nuclear power generation is expected to increase in Asia, particularly China, South Korea, Japan and India.
None of these are party to any liability Convention (Paris and Vienna for example).

2. The US is not either but they do have a fairly good home grown regulatory structure it would seem.


The above quote is from :

http://law.du.edu/documents/djilp/T...ity-Conventions-Analysis-How-Actual-Claim.pdf



US Framework

"The USA takes a somewhat different approach, and having pioneered the concept is not party to any international nuclear liability convention, except for the CSC, which has yet to come into force. The Price Anderson Act - the world's first comprehensive nuclear liability law - has since 1957 been central to addressing the question of liability for nuclear accident. It now provides $12.5 billion in cover without cost to the public or government and without fault needing to be proven. It covers power reactors, research reactors, enrichment plants, waste repositories and all other nuclear facilities.

It was renewed for 20 years in mid 2005, with strong bipartisan support, and requires individual operators to be responsible for two layers of insurance cover. The first layer is where each nuclear site is required to purchase US$ 375 million liability cover (as of 2011) which is provided by a private insurance pool, American Nuclear Insurers (ANI). This is financial liability, not legal liability as in European liability conventions.
The second layer or secondary financial protection (SFP) program is jointly provided by all US reactor operators. It is funded through retrospective payments if required of up to $112 million per reactor per acident* collected in annual instalments of $17.5 million (and adjusted with inflation).

Combined, the total provision comes to over $12.2 billion paid for by the utilities. (The Department of Energy also provides $10 billion for its nuclear activities.) Beyond this cover and irrespective of fault, Congress, as insurer of last resort, must decide how compensation is provided in the event of a major accident.

* plus up to 5% if required for legal costs.

More than $150 million has been paid by US insurance pools in claims and costs of litigation since the Price- Anderson Act came into effect, all of it by the insurance pools. Of this amount, some $71 million related to litigation following the 1979 accident at Three Mile Island.

The Nuclear Regulatory Commission (NRC) requires all licensees for nuclear power plants to show proof that they have the primary and secondary insurance coverage mandated by the Price-Anderson Act. Licensees obtain their primary insurance for third-party liability through American Nuclear Insurers (ANI), and ANI manages the secondary insurance program also. Licensees also sign an agreement with NRC to keep the insurance in effect.

American Nuclear Insurers also has a contractual agreement with each of the licensees to collect the retrospective premiums if these payments become necessary. A certified copy of this agreement, which is called a bond for payment of retrospective premiums, is provided to NRC as proof of secondary insurance. It obligates the licensee to pay the retrospective premiums to ANI if required.

American Nuclear Insurers is a pool comprised of some 60 investor-owned stock insurance companies, including the major ones. About half the pool's total liability capacity comes from foreign sources such as Lloyd's of London. The average annual premium for a single-unit reactor site is $400,000. The premium for a second or third reactor at the same site is discounted to reflect a sharing of limits.

The nuclear operators' mutual arrangement for insuring the actual plants against accidents is Nuclear Electric Insurance Limited (NEIL) which is well funded (a $5 billion surplus) and cooperates closely with the American Nuclear Insurers pool. It was founded in 1980 and insures operators for any costs associated with property damage, decontamination, extended outages and related nuclear risks.

For property damage and on-site decontamination, up to $2.75 billion is available to each commercial reactor site. The policies provide coverage for direct physical damage to, or destruction of, the insured property as a result of an accident [?accident? is defined as a sudden and fortuitous event, an event of the moment, which happens by chance, is unexpected and unforeseeable. Accident does not include any condition which develops, progresses or changes over time, or which is inevitable]. The policies prioritize payment of expenses to stabilize the reactor to a safe condition and decontaminate the plant site.

The Price Anderson Act has been represented as a subsidy to the US nuclear industry. If considered thus, the value of the subsidy is the difference between the premium for full coverage and the premium for $10 billion in coverage. On the basis of data obtained from two studies - one conducted by the Nuclear Regulatory Commission (NRC) and the other by the Department of Energy (DOE) - the Congressional Budget Office (CBO) estimated that the subsidy probably amounts to less than 1 percent of the levelized cost for new nuclear capacity.

The Price Anderson Act does not fully align with international conventions in that legal channelling is forbidden by state laws, so the Act allows only economic channelling, whereby the operator is economically liable but other entities may be held legally liable. This is a complication regarding any future universal compensation regime, though a provision was written into the CSC to allow the USA to join despite this situation. Hence the CSC may prove the most realistic basis for any universal third party regime.

From :

http://www.world-nuclear.org/info/inf67.html

Interesting bit I found in here :

"Japan is not party to any international liability convention but its law generally conforms to them. Two laws governing them are revised about every ten years: the Law on Compensation for Nuclear Damage and Law on Contract for Liability Insurance for Nuclear Damage. Plant operator liability is exclusive and absolute, and power plant operators must provide a financial security amount of JPY 120 billion (US$ 1.4 billion) - half that to 2010. Beyond that, the government may provide coverage if damage results from ?a grave natural disaster of an exceptional character?, and in any case liability is unlimited.

In relation to the 1999 Tokai-mura fuel plant criticality accident, insurance covered JPY 1 billion and the parent company (Sumitomo) paid the balance of JPY 13.5 billion."

I suspect that will be small potatos in comparison - so Japanese government is on the hook for everything over the Insured's limit.

Sorry if a tldr: All things Nuclear tend to be like that the devil is in the detail.

 
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http://www.cnn.com/2011/WORLD/asiapcf/04/17/japan.nuclear.reactors/index.html

Nine months to end Japan's nuclear crisis, plant owner estimates

Tokyo (CNN) -- Engineers will need six to nine months to bring the damaged nuclear reactors at the Fukushima Daiichi power plant to heel, the plant's owners said Sunday in their first public timetable for ending the crisis.

It will take three months to reduce the levels of radioactivity in the plant and restore normal cooling systems in the reactors and spent fuel pools, the Tokyo Electric Power Company announced. Another three to six months will be needed before the reactors are fully shut down and new shells are built around their damaged housings, the company said.

Meanwhile, Japan's government said it would try to decontaminate "the widest possible area" in that period before deciding whether the tens of thousands who have been forced to flee their homes will be allowed to return, said Goshi Hosono, an adviser to Japanese Prime Minister Naoto Kan.

"We have to go step by step in order to resolve the problems one by one," Hosono said.

The timetable was released five days after Kan called for Tokyo Electric to show Japanese a pathway to ending the worst nuclear accident since the 1986 Chernobyl disaster. A day earlier, the company would not comment on an industry group's estimate that restoring normal cooling would take two to three months -- a period comparable to the first stage of Sunday's plan.

Tokyo Electric spokesman Hiro Hasegawa acknowledged that public pressure helped speed the company's decision to release a plan and warned that the outline remained tentative -- "but we will do our best" to stick to it, he said.

Because of the still-unknown volume of highly irradiated water flooding the basements of units 1-3, where the cooling equipment is normally housed, the utility is working toward building a separate cooling system. That system would remove heat from the water being pumped through the reactors and decontaminate it before circulating it back through them.

Currently, engineers have improvised by pumping roughly 170 metric tons (45,000 gallons) of water a day into each reactor, an unknown portion of which is leaking out. The leaking water comes out full of such particles as radioactive iodine and cesium, the byproducts of the reactors.

At the plant on Sunday, workers used remote-controlled robots to record radiation, water and temperature data in the building that houses reactor No. 3. Photos released by the utility showed the devices, provided by the U.S. company iRobot, opening the inner door to the reactor and entering the darkened building.

"Everything is a high-radiation area inside the reactor buildings," Hasegawa told reporters at a briefing for international news outlets -- another first for a company that has been sharply criticized for its handling of the crisis.

Meanwhile, Tokyo Electric Chairman Tsunehisa Katsumata fended off nearly a dozen questions from Japanese reporters about whether he or other top executives planned to resign as a result of the disaster.

"At this point, we do not have any decisions or discussions about resigning, as all our efforts is towards resolving the situation," Katsumata said. "We are not sure if resigning is the best way to take the responsibility or to stay in position to resolve the situation." Any decisions may wait until the company's general shareholders meeting in June, he said.

The 5-week-old crisis began March 11, when the plant was swamped by the tsunami that followed northern Japan's historic earthquake. The 14- to 15-meter (45- to 48-foot) wave knocked out the plant's coolant systems, causing the three reactors operating at the time to overheat.

The results included two spectacular explosions that blew apart the housings of the No. 1 and No. 3 reactors and the release of a massive amount of radioactivity that has shrunk considerably, but continued Sunday.

The wild card in the utility's plan may be reactor No. 2, where another suspected buildup of hydrogen is believed to have ruptured the suppression pool -- a doughnut-shaped reservoir at the base of the reactor. That may make it more difficult to carry out one of the first stages of their planned cooling process, filling the concrete primary containment shell around the reactor pressure vessel with water, Hasegawa said.

Unless that damage is repaired somehow, that part of the plan may be unsuccessful, he said.

Tokyo Electric also plans to build a new structure to support the No. 4 unit's spent nuclear fuel pool, around which fires -- the cause of which has yet to be determined -- severely damaged a nearby building.

Hosono said there is no indication this pool is compromised or leaking highly radioactive water or fumes, calling the planned structure a protective measure given concerns about considerable damage to the main No. 4 nuclear reactor building.

Japan's government declared Fukushima Daiichi a top-scale nuclear disaster last week, warning residents of several towns outside the current 30-kilometer (19-mile) danger zone around the plant to evacuate or prepare to leave their homes. Chief Cabinet Secretary Yukio Edano visited the stricken area Sunday, including a brief trip into the 20-kilometer radius from which all residents have been ordered out.

Clad in a white protective suit and face mask, Edano got within about 15 kilometers of the plant as he met with police who are still searching the area for victims of the March disaster.

"Ensuring people's livelihoods and security is our foremost priority," Edano said after meeting with the governor of Fukushima Prefecture, Yuhei Sato.

Radiation levels in the area are not high enough to cause immediate health effects, but prolonged exposure could cause an increased risk of cancer, according to government data and reports from outside researchers. In Iitate, a village Edano visited Sunday, government figures released Sunday show cumulative doses of radiation since the accident are already more than half the 20-millisievert limit the government

set for long-term evacuations.

Iitate is about 40 kilometers northwest of the plant, outside the danger zones drawn in the early days of the crisis. Hosono said the government does not yet know how much of the contaminated areas can be cleaned up, but added, "We will try to decontaminate as much of an area as possible."

Workers stopped a severe leak of contaminated water into the Pacific Ocean on April 6, but elevated levels of the short-lived nuclear waste iodine-131 recorded over the weekend could indicate a new problem, a Japanese safety official announced Saturday. Iodine concentrations sampled Saturday around the No. 2 water intake were 6,000 times Japan's legal standards, up from 1,100 times on Thursday and down slightly from Friday's figure of 6,500 times.

That number is far below the levels recorded when the earlier leak was spewing radioactive iodine into the ocean at 7.5 million times the limit. Authorities have built a silt and placed steel plates around the intake fence to corral the contamination since April 6.

Iodine-131 has a radioactive half-life of eight days, and the increase could be either from a fresh leak or from sediment stirred up while placing steel panels around the intakes, said Hidehiko Nishiyama, the top spokesman for Japan's Nuclear and Industrial Safety Agency.

"They will continue to monitor this carefully," Nishiyama said. "At this point, they have not visually found any leakage of any water into the ocean, and it is hard to check the conditions around (reactor) No. 2 due to high radiation levels."
 
I'm starting to think the military should run these plants (in the U.S.). Thus far they have the best record for keeping reactors running (ignoring Hanford as that is a special case). As a benefit it may divert money away from war mongering presidents like Bush and Obama (ha, I know that is a dream).
 
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Plant operator liability is exclusive and absolute, and power plant operators must provide a financial security amount of JPY 120 billion (US$ 1.4 billion)

Beyond that, the government may provide coverage if damage results from ?a grave natural disaster of an exceptional character?, and in any case liability is unlimited.

In relation to the 1999 Tokai-mura fuel plant criticality accident, insurance covered JPY 1 billion and the parent company (Sumitomo) paid the balance of JPY 13.5 billion."

I suspect that will be small potatos in comparison - so Japanese government is on the hook for everything over the Insured's limit.

Thanks for doing the research.

But from these points I don't quite see it the same way. It seems there is a fund of at least $1.4bn, and the operator is solely responsible unless the situation is caused my a massive natural disaster, in which case the gov may contribute.

From the article I posted earlier it seems the gov will be forcing TEPCO to pay for all claims from future profits.
 
TEPCO will then declare bankruptcy and the liability will still fall on the Japanese government - it is not something you can avoid.
 
Stumbled on this article today:

A Day Trip with a Geiger Counter

Fukushima Disaster Boosts Chernobyl Tourism

By Benjamin Bidder in the Chernobyl Exclusion Zone


It may not be everyone's idea of a fun excursion, but increasing numbers of tourists are visiting the site of the Chernobyl nuclear disaster. The day trip package includes the use of a Geiger counter and lunch in the nuclear plant's canteen.

Yuri Tatarchuk is standing in front of a group of visitors from Europe, Asia and America. The 38-year-old tour guide is built like a wrestler and is wearing combat boots and army fatigues.

Tatarchuk hands out Geiger counters, distributing tidbits of well-intended advice as he does so. "Distance is the best protection," he says. "Panicking doesn't help."

The tourists look at Tatarchuk's t-shirt with curiosity. The slogan on the garment, which is stretched a little over his belly, reads "Hard Rock Cafe Chernobyl." It is Tatarchuk's ironic take on the tourist development of the exclusion zone around the destroyed Chernobyl nuclear plant in northern Ukraine.

He earns his living as a tour guide in the contaminated zone around the reactor, which exploded on April 26, 1986. Jobs are scarce for men in their late 30s in rural Ukraine, and Tatarchuk says he was too old to be picky.

Some 130,000 people fled the area in 1986, when reactor No. 4 of the Vladimir Ilyich Lenin Nuclear Power Plant exploded. Lethal radioactive dust landed on the streets and houses. Two cities and dozens of villages had to be abandoned because radioactive substances such as cesium-137 poisoned the soil, water and air. Now, 25 years later, people from all over the world are voluntarily setting foot on the contaminated land.

'I Lead a Dangerous Life'

For her visit to the danger zone, Margarita from Italy has chosen to wear leopard-print linen shoes and pink lipstick. Her eyebrows are dyed lime green, her dark hair blond. "I lead a dangerous life," says Margarita, who is in her mid-twenties, in a breathy voice. "All the dye in my hair is also harmful to my health."

The tour group strolls past a Ferris wheel in the city of Pripyat. The Soviets built the attraction in the 1980s, but it was never opened, because Pripyat was evacuated after the nearby nuclear reactor exploded. Today, tourists like Margarita can explore the amusement park. Most of them say they are in favor of nuclear energy, describing their attitude as "pragmatic." They are mostly interested in seeing what life is like in the aftermath of a nuclear apocalypse.

"As long as North Korea is still closed, Chernobyl is the ultimate kick," says Margarita.

The day trip to the danger zone costs $100. The price includes lunch in the power plant's cafeteria. Radio stations in the capital Kiev advertise the tours with the slogan "Visit Chernobyl." The Ukrainian government has announced plans to increase the annual number of tourists from 60,000 to 1 million. Ever since the Fukushima nuclear accident, the tours have been booked out.

An air-conditioned Mercedes bus brings tourists to the reactor, the heart of the "Zone of Alienation," as the exclusion zone is officially called. Inside the vehicle, a modern plasma television shows "The True Battle of Chernobyl," a docu-drama with a stirring soundtrack and animated Hollywood-style explosions. Through the windows of the bus, abandoned villages can be seen passing by.

Cracks in the Sarcophagus

Henrik Bj?rkman is sitting sprawled out on a comfortable leather seat. An engineer by trade, Bj?rkman is from Sweden, a country that already decided to phase out nuclear power 30 years ago. Since then, however, the government has lifted the ban on building new reactors, and supporters of nuclear power are in the majority, even after Fukushima. "I'm quite positive about nuclear power," says the engineer, adding that he is not afraid of a nuclear accident. "There are no tsunamis or earthquakes in Sweden."

The bus stops in front of Reactor Block 4, where a black steel and concrete sarcophagus rises into the sky. In 1986, Moscow sent over half a million men to put out the fire that was burning in the crater left by the explosion. The men took 202 days to build the protective cover known as the sarcophagus to seal off the reactor. But the tourists' Geiger counters crackle nevertheless -- the sarcophagus has many cracks and holes in it.

Tsuyoshi Otake, who has gray hair and is wearing a gray windbreaker, pulls out his pad and takes notes. As Europe correspondent for the Japanese business magazine Nikkei Business Publications, the respected reporter normally spends his time analyzing the earnings outlooks of global companies. Now he has been tasked with writing about the prospects for nuclear power in his native Japan. "Objectively speaking," Otake says, "Japan can not do without nuclear power." He plans to file a story on how the example of Chernobyl can be useful in dealing with the Fukushima disaster.

Some 7,000 people are still working in the restricted zone, says Yuri Tatarchuk, the brawny tour guide. They maintain the old power plant, whose last working reactor only went offline in 2000. They are also responsible for securing the sarcophagus and the exclusion zone, which is twice as large as the German state of Saarland.

Tatarchuk asks Otake whether he still trusts "information from the government," despite the Fukushima disaster. The Japanese reporter replies with a shy nod.

"All governments lie," says the Ukrainian, with a laugh. "Including the democratic ones. Japan is a democracy, right?"

Tatarchuk is distracted from the conversation by two Swedish tourists, who, carried away by their desire to take snapshots, have gotten too close to the sarcophagus. He blows his whistle to bring them back, as a French tourist asks Otake if he is familiar with the expression "deja vu."

Faded Flowers

A sign marks the entrance to the town of Pripyat, where a few faded plastic flowers blow in the wind. The Geiger counters show 20 times the normal level of radiation. A blonde Ukrainian woman looks at her meter and says there is "very little" radiation here. She sounds disappointed. She explains that the radioactivity in some Kiev neighborhoods was even higher.

The 1986 disaster caused all the plants in the area to wither. The local wood is still called the Red Forest, Tatarchuk explains -- the leaves of the trees were discolored as a result of the accident.

Pripyat was a model socialist city for 50,000 people. From the top floors of the buildings, residents could look out on the pride of the city: the reactor. Pripyat was evacuated just hours after the explosion. Today, the houses and streets in this modern Pompeii are overgrown with trees. Exercise books still lie on the tables in the classrooms of School Number 3. "My fatherland is the USSR," can still be seen on the page, written by a first-grader 25 years ago.

Tsuyoshi Otake walks silently through the ghostly corridors. Verses emblazoned on the walls talk of "heroic deeds in the name of the happiness of all peoples" -- a macabre reminder of Soviet optimism about unstoppable progress.

On the fourth floor, hundreds of gas masks lie strewn on the floor among books and toys. They are so small that they could only fit on the heads of elementary school students.

"I'm worried about Fukushima," says Otake.

Source: http://www.spiegel.de/international/europe/0,1518,758269,00.html

Who knows? Maybe in 20 years or so, they turn Fukushima into an amusement park -- the first radioactive Disneyland, so to speak... after all, the Japanese culture is full of strange fetishes already.

Life is boring without some risk, isn't it? :p
 
TEPCO will then declare bankruptcy and the liability will still fall on the Japanese government - it is not something you can avoid.

That's always a possibility but it doesn't even need to come to that for the gov to have to step in. When another power station was shutdown for an extended period for safety checks after unexpectedly high seismic activity TEPCO posted billion dollar losses due to production losses. I don't see how the gov can predict TEPCO will keep its normal pre-tax profits for the coming years after this incident.
 
http://www.asahi.com/english/TKY201104250125.html

TEPCO filling containment vessels; experts raise doubts

Tokyo Electric Power Co. started the unprecedented and potentially risky measure of allowing water to flood the containment vessels of three troubled reactors at the Fukushima No. 1 nuclear power plant, company sources said.

It is the world's first attempt to saturate the entire containment vessel with water with the aim of cooling the pressure vessels inside the containment vessels and ultimately the reactor cores themselves.

So far, TEPCO has been injecting water into the pressure vessels at the No. 1 through No. 3 reactors. Under the new plan, TEPCO will allow the water to overflow from the pressure vessels through valves and ruptured pipes until the water fills the outer containment vessels.

According to TEPCO's road map, the water levels will reach the upper end of the fuel rods within three months.

The amount of water injected into the pressure vessels is about one ton larger per hour than the amount that evaporates due to the intense heat from the fuel rods.

The water level at the No. 1 reactor has been raised to about 6 meters above the bottom of the containment vessel. That level is 3 meters below the bottom of the pressure vessel.

But TEPCO has been unable to verify the water levels at the No. 2 and No. 3 reactors, and suspect that water is leaking from the damaged containment vessels.

Industry specialists have raised doubts about the effects and safety of TEPCO's new operation.

Since the concrete-made building of the No. 1 reactor may have been weakened by the March 11 earthquake and tsunami as well as aftershocks, it might not be able to bear the weight of the water, which will reach up to 7,400 tons. TEPCO said it is re-calculating the structural strength of the building.

At the No. 2 reactor, highly radioactive water is believed to be seeping through a hole in the suppression pool, which leads into the lower part of the containment vessel.

TEPCO plans to plug that hole with adhesive cement.

The Oak Ridge National Laboratory, a top U.S. scientific research institution, reported in a study that this method can mitigate damage from nuclear incidents. Nonetheless, the U.S. study did not take into account a nuclear crisis continuing for more than one month, as has the Fukushima nuclear incident.

Keiji Miyazaki, professor emeritus of nuclear reactor engineering at Osaka University, said that filling the containment vessel with water would cool the pressure vessel from the bottom, which would likely prevent it from being destroyed by melting fuel.

However, he added that the method is not an effective way to cool the fuel rods.

Another problem will be adjusting pressure levels inside the containment vessel should the temperature and pressure again rise. The amount of gas inside the containment vessel will be substantially reduced by the injected water.

TEPCO is considering draining the water from the pressure suppression pools, cooling that water with air and seawater and then re-injecting it.
 
They were wrong about the 6 to 9 months plan they laid out before.

http://online.wsj.com/article/SB10001424052748703509104576325110776621604.html?mod=e2tw

Cores Damaged at Three Reactors


TOKYO?Substantial damage to the fuel cores at two additional reactors of Japan's Fukushima Daiichi nuclear complex has taken place, operator Tokyo Electric Power Co. said Sunday, further complicating the already daunting task of bringing them to a safe shutdown while avoiding the release of high levels of radioactivity. The revelation followed an acknowledgment on Thursday that a similar meltdown of the core took place at unit No. 1.

Workers also found that the No. 1 unit's reactor building is flooded in the basement, reinforcing the suspicion that the containment vessel is damaged and leaking highly radioactive water.

The revelations are likely to force an overhaul of the six- to nine-month blueprint for bringing the reactors to a safe shutdown stage and end the release of radioactive materials. The original plan, announced in mid-April, was due to be revised May 17.

The operator, known as Tepco, said the No. 1 unit lost its reactor core 16 hours after the plant was struck by a magnitude-9 earthquake and a giant tsunami on the afternoon of March 11.

The pressure vessel a cylindrical steel container that holds nuclear fuel, "is likely to be damaged and leaking water at units Nos. 2 and 3," said Junichi Matsumoto, Tepco spokesman on nuclear issues, in a news briefing Sunday.

He also said there could be far less cooling water in the pressure vessels of Nos. 2 and 3, indicating there are holes at the bottom of these vessels, with thousands of tons of water pumped into these reactors mostly leaking out.

Tepco found the basement of the unit No. 1 reactor building flooded with 4.2 meters of water. It isn't clear where the water came from, but leaks are suspected in pipes running in and out of the containment vessel, a beaker-shaped steel structure that holds the pressure vessel.

The water flooding the basement is believed to be highly radioactive. Workers were unable to observe the flooding situation because of strong radiation coming out of the water, Tepco said.

A survey conducted by an unmanned robot Friday found radiation levels of 1,000 to 2,000 millisieverts per hour in some parts of the ground level of unit No. 1, a level that would be highly dangerous for any worker nearby. Japan has placed an annual allowable dosage limit of 250 millisieverts for workers.

The high level of radioactivity means even more challenges for Tepco's bid to set up a continuous cooling system that won't threaten radiation leaks into the environment.

Tepco separately released its analysis on the timeline of the meltdown at unit No. 1. According to the analysis, the reactor core, or the nuclear fuel, was exposed to the air within five hours after the plant was struck by the earthquake. The temperature inside the core reached 2,800 degrees Celsius in six hours, causing the fuel pellets to melt away rapidly.

Within 16 hours, the reactor core melted, dropped to the bottom of the pressure vessel and created a hole there. By then, an operation to pump water into the reactor was under way. This prevented the worst-case scenario, in which the overheating fuel would melt its way through the vessels and discharge large volumes of radiation outside.

The nuclear industry lacks a technical definition for a full meltdown, but the term is generally understood to mean that radioactive fuel has breached containment measures, resulting in a massive release of fuel.

"Without the injection of water [by fire trucks], a more disastrous event could have ensued," said Mr. Matsumoto.

Tepco also released its analysis of a hydrogen explosion that occurred at unit No. 4, despite the fact that the unit was in maintenance and that nuclear fuel stored in the storage pool was largely intact.

According to Tepco, hyrogen produced in the overheating of the reactor core at unit 3 flowed through a gas-treatment line and entered unit No. 4 because of a breakdown of valves. Hydrogen leaked from ducts in the second, third and fourth floors of the reactor building at unit No. 4 and ignited a massive explosion.
 
Within 16 hours, the reactor core melted, dropped to the bottom of the pressure vessel and created a hole there. By then, an operation to pump water into the reactor was under way. This prevented the worst-case scenario, in which the overheating fuel would melt its way through the vessels and discharge large volumes of radiation outside.

The nuclear industry lacks a technical definition for a full meltdown, but the term is generally understood to mean that radioactive fuel has breached containment measures, resulting in a massive release of fuel.

http://online.wsj.com/article/SB10001424052748703509104576325110776621604.html?mod=e2tw

In other words: While we were still discussing here, if the reactor could have been damaged at all, the core of reactor 1 had already melted. 70 % of the rods are partly or completely melted, to be precise.

At least the Japanese government seems to have realized now, that building so many nuclear power plants in such a highly geologically unstable region was not the brightest idea in the first place and has announced to look at bit more into renewable energy.

By the way: Even the oil companies seem to realize, that money can be made with renewable energy. And they are suddenly very eager to offer technical help. A cousin of mine is an engineer, who works for a company, that participates in the construction of offshore wind parks.

The problem with construcing those is, that there is a lack of heavy marine machinery in Europe. The oil industry has such machinery (ships and cranes) but until Fukushima they were too arrogant to lend that stuff to "those eco guys from the wind energy industry".

Now, it seems, things have changed. On Easter Sunday, during breakfast, my cousin was called by his company to fetch an Australian engineer from the airport, who flew in directly from Singapore on short notice. Obviously that guy works for a Singapore-based company, that is willing to provide ships and cranes for erecting the offshore wind turbines.

When I asked my cousin, he told me no details. Don't even know the name of the guy's company, only that it is located in Singapore. We had the chance for some small talk, when he arrived and dispite his long trip, he immediately went to work with my cousin. I found it very interesting, that they flew in a guy on the Easter weekend for that. He had a 22-hour trip. Obviously it couldn't wait until Tuesday. I suppose he gets paid well for doing such a job.
 
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