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Fukushima Unit 5 Continues Alternate Cooling

Fukushima Unit 5 Continues Alternate Cooling

Unit 5 continues to operate on shared cooling with the reactor vessel. Graphs of hourly temperature data pulled today show again, the back and forth trend in temperature changes as they shift cooling between the vessel and the pool. The high temperature seen in the RPV graph is 42.5c. Also mentioned today in TEPCO’s daily reports, unit 6 has returned to cooling the spent fuel pool after a short outage to test the fuel gate.   RPV … Read entire article »

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Fukushima Unit 5 Reactor Temperature Rises

Fukushima Unit 5 Reactor Temperature Rises

TEPCO’s statements earlier this week that they would use a back and forth method of cooling the spent fuel pool by sharing the reactor cooling system appears to be underway. The reactor temperature has risen 12 degrees Celsius since July 8th. Spent fuel temperature rose but fell down closer to normal over the same time frame. While these changes are not alarming they do warrant close monitoring to assure they are staying within safe ranges … Read entire article »

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UK Reactor Shut Down 5 Months Without Informing Public

UK Reactor Shut Down 5 Months Without Informing Public

The Dungeness nuclear power plant was shut down for 5 months to deal with inadequate flood protection issues. What is more unusual is that the public was never informed by the operator or the country’s nuclear regulator. The area has been subject to severe flooding in recent years and both the operator and the regulator knew the plant was at risk. The UK nuclear regulator does not report the status of nuclear power plants as the … Read entire article »

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Unit 3 Fukushima Daiichi Reactor Data

Unit 3 Fukushima Daiichi Reactor Data

There have been a number of unsubstantiated rumors going around about “new problems” at unit 3. Information is always better than rumor. We pulled the reactor data for the last week for unit 3. Temperatures are within expected and historical levels. Xenon 135 is monitored as an indicator of fission and is consistent at levels well below anything that would indicate anything outside of normal for the state of unit 3. The steam at unit … Read entire article »

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Oi Reactor Shuts Down, Japan Nuke Free, Typhoon Bears Down On Fukushima

Oi Reactor Shuts Down, Japan Nuke Free, Typhoon Bears Down On Fukushima

The last operating nuclear reactor in Japan has shut down, leaving Japan again nuclear power free. Last year Japan briefly was at zero nuclear power. Threatened blackouts never happened even at the height of summer. With this new shutdown at Oi KEPCO has yet again made threats of blackouts, this time claiming the coming winter. Reactors in Japan can not restart without passing the new NRA inspections and regulations. The power companies and their allies … Read entire article »

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Reactor Restarts & Why TEPCO Should Die To Spare Japan

TEPCO has started another PR effort. The current president of TEPCO met with local mayors near Kashiwazaki Kariwa, the nuclear plant TEPCO hopes to restart. The Niigata governor had previously voiced his opposition to any restart of the plant. More importantly the mayors of the local towns the plant is located within have a more direct say in any restart, they don’t appear warm to the idea either. TEPCO signed agreements with the local governments that “consent” would be obtained for operation of the plants. This isn’t legally binding but TEPCO admits operating without it would be difficult. They don’t clarify how it would be difficult or if it truly could prevent the plant from operating. The mayor of Kashiwazaki made it very clear that he was opposed to any … Read entire article »

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US Nuclear Plant Cracks Reactor Vessel

The Sharon Harris nuclear plant admitted to having a crack in the reactor vessel. The 1/4 crack did not penetrate all the way through the vessel steel. It was not reported how long or deep the crack was. The reactor ultrasound data was collected a year ago but the plant officials are only now going through it. This raises questions about why they were allowed to wait so long and also to restart before the review is conducted. The plant owners said the repair would need to be done with robots on the reactor head section of the reactor vessel due to the high radiation. The crack appeared on a weld for a control rod nozzle on the reactor head. The unit in question is a 3 loop PWR reactor, this … Read entire article »

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Radball To Be Used To Map Hot Spots In Fukushima Reactors

A strange looking device will be used to map the radiation in the Fukushima reactors. The device can detect radiation levels and feed them to a computer that can make a detailed radiation level map. This could help pin point hot spots in the building to better understand the failure of each unit. It will also help identify dangerous spots that workers should avoid or require shielding to be put in place. The device was invented at the UK’s National Nuclear Lab. Lancashire Evening Press (photo credit: same) This article would not be possible without the extensive efforts of the SimplyInfo research team Join the conversation at chat.simplyinfo.org All content is copyright SimplyInfo.org. Content cited, quoted etc. from other sources is under the respective rights of that content owner. If you are viewing this page … Read entire article »

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US Petition To Revoke BWR Reactor Licenses

Beyond Nuclear filed a petition in March 2013 requesting the NRC revoke the operating licenses of the GE BWR reactors in the US, these are the Fukushima type reactors. With the NRC voting to delay pretty much forever any meaningful regulatory action on the post Fukushima safety upgrades recommended by the Blue Ribbon Panel on Fukushima, it is clear the NRC has no intention of doing anything to deal with the safety risks posed by these units. Beyond Nuclear’s official petition to the NRC explains in detail the grounds for their case. You can read it and sign on to the petition filed with the NRC here. The former head of the NRC, Gregory Jaczko has admitted the US reactor fleet including these BWR reactors are too dangerous to continue operating. He … Read entire article »

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TEPCO Announces Plan To Look At Reactor Vessel In Unit 2

TEPCO announced a plan that should enable them to look inside unit 2 and inspect the reactor vessel directly.  TEPCO plans to use the long scope camera to conduct the work. They will send the scope down the control rod replacement rail into the pedestal, this will allow a clear view of the underside of the steel reactor vessel. Since the bottom of this vessel is the likely melt through location this work may give some major clues to what happened at unit 2. From the handout it appears they practiced the work at unit 5. This is a common tactic TEPCO has used to allow workers to be familiar with the task before going into the high radiation environment in the other units. This work will be done in late March, … Read entire article »

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Japan Unlikely To Restart Nuclear Plants This Year

The combination of new safety rules being implemented this July and the need to upgrade plants has caused all of Japan’s power companies to say they would not be able to restart any of their reactors within 2013. The high costs of meeting safety requirements is also playing a role in delaying any restarts. Earlier Japan PM, Abe stated Japan would begin restarting nuclear reactors as soon as safety guidelines are in place. This claim flies in the face of the current structure where the NRA would ultimately decide if a plant meets the basic safety that would allow it to restart. This article would not be possible without the extensive efforts of the SimplyInfo research team Join the conversation at chat.simplyinfo.org All content is copyright SimplyInfo.org. Content cited, quoted etc. from other sources … Read entire article »

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More US Nuclear Plants May Be Shut Down

The Crystal River nuclear plant was formally started on the permanent shut down process this week. It may not stop with this plant. UBS has announced other plants they think are at risk. Reuters mentioned an Exelon units that may shut down. Exelon denied this to Reuters but this was previously admitted by the company. One of Constellation Energy’s units may also face shutdown. The plants that may shut down due to economics: Vermont Yankee Fitzpatrick Clinton Ginna The Kewaunee nuclear plant in Wisconsin is also in the process of permanent shut down due to poor profitability.   This article would not be possible without the extensive efforts of the SimplyInfo research team Join the conversation at chat.simplyinfo.org All content is copyright SimplyInfo.org. Content cited, quoted etc. from other sources is under the respective rights of that content owner. If … Read entire article »

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Regulator 99% Sure Cracks In Belgian Reactors Are Manufacturing Flaws

We previously reported a list of 10 US reactors and 21 worldwide that may have the same flaws as the reactor found in Belgium to have substantial cracks in the reactor vessel. Now FANC the nuclear authority in Belgium is stating they are 99% sure the cracks found at the Doel nuclear reactor and later at the Tihange reactor are due to a manufacturing defect. Tihange had 2500 cracks, Doel had 8000 cracks found on the inspections. The cracks are now thought to have been caused by the steel vessels being cooled too rapidly after forging. There will be additional outside analysis of the reactor vessels before a final decision will be made in Belgium. Currently the NRC is allowing the reactors in the US with this potential flaw to continue to … Read entire article »

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Monticello Nuclear Plant Failure & Water Loss Incident

The Monticello nuclear plant that sits about 40 miles from downtown Minneapolis had another failure Tuesday. While the reactor was operating workers attempted to do maintenance work on an electrical system. This caused the reactor to lose the power to the reactor cooling water pumps. The water level began to drop. The NRC cites that the water did not drop low enough to turn on the HPCI and RCIC emergency cooling systems. Both of these have set points above the top of the fuel core. The NRC cites water levels in both positive numbers and negative numbers. Most of the data out of Japan related to the Fukushima Daiichi disaster document the “0″ water level to be the top of the fuel core. Some diagrams such as the emergency set point … Read entire article »

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Cooper Nuclear Station Running Without Emergency Generators

Cooper Nuclear Station, a one unit GE Mark 1 reactor, just like the units at Fukushima was fully operating at 100% power without either emergency diesel generator functioning. One unit has since been restored. The other unit is apparently still out of service. One was already out of service due to a rainwater leak in the roof of the building it is housed in. The service water for the other unit sprung a small leak taking the other generator out of service. If Cooper were to lose offsite power it would have no back up AC power available if both generators are out of service or fail to operate. This article would not be possible without the extensive efforts of the SimplyInfo research team Join the conversation at chat.simplyinfo.org All content is copyright SimplyInfo.org. … Read entire article »

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Belgian Possible Cracked Vessel Problem At 10 US Reactors (With List)

Belgian officials earlier this week announced that the reactor vessel at the Doel nuclear plant, unit 3 was found to have cracks. The Belgian regulator said the cracks in the reactor vessel are due to manufacturing problems, not from aging. Some reporting misstated the reactor vessel as a “tank” in their reports.  About 10 nuclear reactors in the US had their reactor vessel made by Rotterdam Dry Dock Company, the company that made the vessel for Doel. The inspection was done with a new ultrasound tool. The operator is re-scanning the the vessel with their old ultrasound tool to rule out problems with the new tool. They are anticipating being out of operation at least until the end of the month. The Swiss scanned their Rotterdam made reactor vessel with … Read entire article »

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21 Nuclear Reactors May Have Failing Reactor Vessels

The Belgian Doel 3 nuclear reactor was put into an extended shutdown after possible cracks were found in the reactor pressure vessel. Ultrasonic testing during a mandatory 10 year check found the possible cracks. The operator intends to do additional testing. If the reactor is found to be cracked it could be permanently taken out of service. This finding also raises concerns about the other 21 units made by Rotterdam Dry Docks while the company was in operation. Some of the other units that were made by Rotterdam include: Doel 2 Doel 3 Vermont Yankee N Anna 2 McGuire 2 Catabwa 1 Fermi 2 Tihange 2 A number of these units have had issues with the steel that caused concerns or additional inspections.   This article would not be possible without the extensive efforts of the SimplyInfo research team Join the conversation at … Read entire article »

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Media Picks Up On Risks At Oi

The media has picked up on the risks at the Oi nuclear plant in Japan. Our report on the real risks at Oi mentions our concerns with the limited roads into the plant. We also covered the many portions of that single road that are at high risk for tsunami or earthquake damage. The Associated Press has picked up on the issue and found something more. “If the Ohi nuclear reactors plunged into a Fukushima-style meltdown, the only route for escaping or for sending help would be a winding, cliff-hugging road often closed by snow in winter or clogged by beachgoers in summer.” “Still, Japan’s government has chosen to lift its post-Fukushima nuclear freeze and restart two reactors at Ohi, even though construction of an alternative route to the facility is barely on … Read entire article »

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Japan Reactor Restarts = Power Company “Corporate Welfare”

The national government is pushing hard to restart the Oi reactors in Japan. Pressure is being put on various involved parties at the local level. Nobody wants to have the final decision for the restart put on their shoulders. The vague wording of the need to gain local approval has created a mess with the entities being involved. Many are refusing to admit a clear stance on the issue. Prime minister Noda  has claimed that “Japanese lifestyles rely on nuclear power” in an attempt to throw the blame back on the public. The Ohi local assembly has given their approval. The governor of Fukui has not. The mayor of Oi has not. A “group of regional governors” has given approval but it is not totally clear who this includes. The mayor of Osaka has given … Read entire article »

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NISA Finds New Quake Risk Concerns At Oi & Tsuruga

NISA has discovered that part of the slope near the Oi reactors could collapse in an earthquake. KEPCO says they will remove some of the soil in 2014. NISA intends to hold an expert meeting to discuss the issue. A landslide could drastically complicate an earthquake caused disaster at the plant. English translation of the original article at the end of the page. NISA will also begin a six month inspection to determine if faults under the Tsuruga nuclear plant are active. There are concerns that faults under the plant could move with a nearby known active fault. “Japan has regulations against building a nuclear plant on top of an active fault that has moved within the last 120,000 to 130,000 years, so the Tsuruga site could be declared unfit to host … Read entire article »

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Reactor Restarts Come Down To Money

The local assembly of Oi town has voted to approve the restart of the Oi reactors. The assembly cited economic concerns such as employment. The $32 million in annual subsidies the city is given from Kansai electric is probably a considerable part of the decision. Some have described the subsidies as like a drug that causes the local municipality to become both dependent and complacent about fostering the economy independent of the power companies. This approval to restart the reactors is not shared by the other nearby towns. Eight of the eleven nearby towns do not want the reactors restarted. The power companies in Japan are heavily invested in nuclear. The plan to reform TEPCO hinges on the ability to restart the reactors at Kashiwazaki-Kariwa. The Japanese government has nationalized TEPCO, leaving … Read entire article »

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GAO Slams US Nuclear Decommissioning Fund & NRC

The US Government Accountability Office has slammed the NRC and the reactor decommissioning fund claiming the fund is inadequate as is the NRC oversight. Citing that the majority of the funds do not have enough money to cover real decommissioning costs, some with only 57% of the needed money in the fund. GAO also cited a number of NRC rules and procedures that allowed power companies to not have to prove proper funding and left vague metrics to be followed. The NRC also failed to establish a method to assure power companies are not investing their funds into mutual funds or other investments heavily invested in the nuclear industry. Decommissioning funds are also at risk to the stock market ups and downs. GAO listed five corrective actions the NRC needs to take to … Read entire article »

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Tsruga Impossible To Restart, Issues At Kashiwazaki Raise Concerns

Japan’s Nuclear Safety Commission stated it would be impossible to restart the units at Tsruga nuclear plant. Multiple fault lines run under or near the plant with evidence they have acted together in the past. This raised the earthquake risks at the plant beyond the safety margins allowed to operate. It is very unlikely the reactors at Tsruga will ever be restarted. This week NISA raised the ground motion projections for Kashiwazaki-Kariwa nuclear plant. These new ground motion projections use multiple faults acting at once where TEPCO’s previous assumptions only used one fault line. TEPCO says they will add reinforcement as needed to the plant and intend to restart the reactors. There has been no word yet if NISA considered the risk at Kashiwazaki-Kariwa to be as severe as Tsruga or … Read entire article »

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84% Of Japan Businesses Do Not Support Reactor Restarts

84% of Japan businesses do not want reactors restarted or only want restarts only after sufficient safety changes are made. These businesses were against the reactor restarts even if it could potentially have negative impacts on their business. With such strong opposition in the business community and with the general public it makes one wonder exactly who is for the reactor restarts? Meanwhile Prime Minister Noda’s approval rating continues to fall, Reuters cites the reactor restarts and the proposed sales tax hike as reasons for his waning approval. METI ministers visited the governors of Kyoto and Shiga prefectures to try to pressure them into approving reactor restarts. Shiga’s governor complained of the both the promotion of nuclear power and the oversight of nuclear power being with one agency (METI) and that the … Read entire article »

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Japan’s Political Sideshow

We have been following the recent political games surrounding the restart of the Oi reactors. The government disconnect with reality or the people continues on. This week the ministry in charge of food safety instructed grocery stores and other companies testing food for radiation to end their food testing standards and use the much higher government standards. Various grocery stores, food coops and food producers began their own testing due to lack of comprehensive testing by the government over the last year or more. The government safety standards of 500 bq/kg and the new lower 100 bq/kg are unacceptable to many consumers. Food retailers and producers did what consumers wanted, food that is assured to be safe beyond the government’s high “safety” threshold. The government early on had declared foods to … Read entire article »

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Japan’s Politicians & Advisors Behind The Reactor Restarts

While there has been an almost hyper-focus on METI minister Yukio Edano related to the issue of reactor restarts and Japan’s energy policy, he is not the key player. A list of politicians who are likely behind this out of touch government push has been slowly developing. Their comments on nuclear energy in Japan and the reactor restarts indicate they are likely behind this effort. We are looking into others. If you have some related political insight share in the comments or stop by the live chat and let us know. Yoshito Sengoku: http://en.wikipedia.org/wiki/Yoshito_Sengoku DPJ’s Sengoku describes halt of all nuclear plants ‘mass suicide’ NAGOYA, April 16, Kyodo Yoshito Sengoku, acting chief policymaker of the ruling Democratic Party of Japan, on Monday described the halting of all nuclear power plants in Japan as its ”mass suicide.” ”If … Read entire article »

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Japan’s Perplexing Reactor Restarts; Where Are We Going And Why Are We In This Handbasket?

As the Japanese government has been rushing to restart nuclear reactors everyone is asking the same question. Why? It really doesn’t make sense. In a country still reeling from a massive nuclear disaster why would the government be so intent on ignoring the obvious risks to charge ahead with restarts? The central government excuses have been that there is going to be a dire electricity shortage in Kansai this summer and that reactors have been declared safe.  A number of sources have looked closely into the power capacity in the region and the demand during previous heat waves. They found that the region could supply enough power to meet those previous high demands without the addition of nuclear power. The government has yet to provide any hard evidence for their power shortage … Read entire article »

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Japan Central Government May Restart Reactors Next Week

The central government appears poised to restart the nuclear reactors at Oi as early as next week. This article by Asahi Shimbun claims the reactors may restart as early as next week but also mentions the possibility that approval from local governments will still be needed. There is also a mention that it could be decided based on electricity demands. That opens the door for months long battles about conservation and the honesty of power company demand estimates that have been found in the last year to be inaccurate in many instances. The governor of Fukushima prefecture has blasted the central government plan. He cites that the Fukushima disaster is still not fully understood as the country grapples with new instances of contamination on a daily basis. The accident itself is … Read entire article »

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Early Reactor Data Archive

METI released a series of documents TEPCO had faxed to them during the early days of the disaster. These came back up again recently among various blogs. The documents included tables of reactor data that was more inclusive than some of the early reactor data such as the reactor data feeds we use in the reactor graphs page. Information for reactor data from March 11 to March 25 can be found in this series of tables. The text is in Japanese but if your familiar with the reactor data sets it is straightforward to pick out what readings are for what aspect for each unit. We have archived these early reactor data tables here for reference purposes. This article would not be possible without the extensive efforts of the SimplyInfo research team Join the conversation … Read entire article »

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Reactor Restart Push Heats Up In Japan

Edano may have an evil twin. One day he is stating that he is against the reactor restarts, the next he is promoting them. Kansai Electric has magically (or conveniently) managed to meet meet enough of the “instant noodle” last minute safety guidelines to prevent a meltdown in the case of a power outage according to Edano. The government cabinet believes Kansai’s reactors could withstand a power outage. No word on any other disasters, like the earthquake and tsunami that pummeled Fukushima Daiichi. What work has been done to meet the station blackout risk was not described. Much of the needed safety work has already been kicked down the road by a number of years. “In the timetable, Kepco revealed a plan to set up venting systems with filters at the Oi plant to reduce the … Read entire article »

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Kansai To Spend 2.5 Billion Dollars To Upgrade Reactor Safety

Kansai has said they will spend more than 200 billion yen ($2.5 billion) to upgrade safety at their 11 reactors. The catch? It will take up to 4 years to complete. So they won’t be meeting the government’s desired May restart deadline before the last reactor in Hokkaido shuts down. Critical safety changes needed due to post Fukushima deficiencies would be on the 4 year timeline. This article would not be possible without the extensive efforts of the SimplyInfo research team Join the conversation at chat.simplyinfo.org All content is copyright SimplyInfo.org. Content cited, quoted etc. from other sources is under the respective rights of that content owner. If you are viewing this page on any website other than www.simplyinfo.org (or www.fukuleaks.org) it may be plagiarized, please let us know. If you wish to reproduce any of … Read entire article »

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Edano; End Nuclear Power. KEPCO Overstating Power Shortage Risk

Trade minister Edano made the statements Friday, after the new rushed safety guidelines were announced, he said that Japan should phase out nuclear power. He added that these were his personal views and not the views of the government, that Japan should have zero reliance on nuclear power. Edano also will not be going to Fukui to ask the governor to allow restarts as PM Noda claimed earlier. He cited the need for ministers to discuss further. Local approvals have not changed since the new safety guidelines were announced late in the week. Some in the towns that host the nuclear plants want them restarted because large portions of their city budgets come from subsidy money given by the nuclear plant operators. Loss of this money would cut some city budgets … Read entire article »

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Japan Government Releases New Last Minute Safety Measures

The new safety measures introduced at the last minute intended to sway local governors to allow the Oi reactor to restart were released today. “The guidelines, based on 30 recommendations adopted last month by the Nuclear and Industrial Safety Agency, require nuclear power plants to install filtered vents that could reduce radiation leaks in case of an accident, as well as a device to prevent hydrogen explosions. About 13 of the recommendations – the most crucial measures needed to secure cooling functions and prevent meltdowns as in Fukushima – were implemented, but the rest were not. The guidelines did not set deadlines for the steps to be finished.” So 13 “guidelines” were adopted in some manner. It is not clear if they are now binding law in some manner or simply suggestions … Read entire article »

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Japan Government’s Nuclear Kabuki

The Japanese government failed to put in place the needed changes to launch the planned new nuclear agency. This new agency was supposed to represent a new approach to safety that would be less hindered by politics and industry influence. The public has made it clear they do not trust the stress tests completed on reactors in Japan. Japan’s national government has said they will not restart reactors without local approval but they may not be legally required to obtain local permission. Questions exist about how local approval should be obtained or if it is required. The national government held a meeting on reactor restarts, in the end they were unable to come up with a consensus and decided to delay a decision of they would allow the Oi reactors to restart … Read entire article »

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Fire At French Nuclear Reactor

The Penly nuclear reactor in northwestern France caught fire earlier today. The fire began due to an oil leak in one of the main cooling pumps. The fire caused the reactor to SCRAM. A secondary cooling system is available to continue to cool the reactor. The fire was blamed on lack of proper or timely maintenance that allowed lubricating oil for the pump to leak. About six months previous to this incident there was an explosion at the Marcoule nuclear facility in France. UPDATE: there was also a radioactive water leak at the plant as part of the damage from the fire. This article would not be possible without the extensive efforts of the SimplyInfo research team Join the conversation at chat.simplyinfo.org All content is copyright SimplyInfo.org. Content cited, quoted etc. from other sources is … Read entire article »

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Reactor Water Levels & Automatic Actions If Water Levels Drop

This reference image shows at what point or place the water level within the reactor would cause automatic or operator initiated actions to attempt to cool the reactor.  The original document can be found here. This article would not be possible without the extensive efforts of the SimplyInfo research team Join the conversation at chat.simplyinfo.org All content is copyright SimplyInfo.org. Content cited, quoted etc. from other sources is under the respective rights of that content owner. If you are viewing this page on any website other than www.simplyinfo.org (or www.fukuleaks.org) it may be plagiarized, please let us know. If you wish to reproduce any of our content in full or in more than a phrase or quote, please contact us first to obtain permission. … Read entire article »

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ONE

Monday (JST) TEPCO will shut down the no. 6 reactor at Kashiwazaki Kariwa nuclear plant. This will shut all of TEPCO’s nuclear reactors. There will be no nuclear reactors running on Japan’s main island of Honshu. The one remaining reactor is unit 3 at Tomari in Hokkaido, operated by Hokkaido Electric. UPDATE: word from Japan is that they have already shut it down as of Sunday night Japan time. Meanwhile the World Nuclear Association is trying to scare people with doom and gloom about Japan’s nuclear shutdown. We previously covered how Japan may not need nuclear power at all. The government has already cited they will not need to enact conservation measures or 15% mandatory reductions in consumption on large power consumers. It was also discovered that power companies were manipulating the numbers … Read entire article »

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TEPCO Again Releases No Reactor Data, Some Press Updates

TEPCO released none of their new reactor reporting documents, the scaled down ones with even less data, on March 22. This is as of 2:18am Friday March 23, Tokyo time. They did manage to release a number of press report handouts today including results of the robot trip into unit 2, clarity tests for unit 4′s spent fuel pool and a report on the upcoming trip to scope unit  2′s containment again. While these are useful documents they do not replace the ongoing reactor data or even the scaled back version they went to. This is what you get right now checking data documents for March 22nd. This included Japanese versions, temperature reports and hourly CSV files This article would not be possible without the extensive efforts of the SimplyInfo research team Join the conversation … Read entire article »

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TEPCO Cuts Off All Public Reactor Data Reporting

On March 15th, with no announcement TEPCO quietly shut down all forms of public reactor data monitoring. Since soon after the disaster TEPCO had been providing information about the reactors status and sensor data through a number of ongoing documents and data feeds. CSV files in Japanese and English have been provided since the first weeks of the disaster with data going back to the accident. Those documents now no longer update with March 15,2012 being the last update. English CSV http://www.tepco.co.jp/en/nu/fukushima-np/f1/images/csv_level_pr_data_2u-e.csv Japanese CSV http://www.tepco.co.jp/nu/fukushima-np/f1/images/csv_level_pr_data_3u-j.csv  The daily table summary of plant and reactor data also stopped on March 15th. Just change the “15″ to the date in March you wish to view. You can see that none past March 15 exist. http://www.tepco.co.jp/en/nu/fukushima-np/f1/images/12031512_table_summary-e.pdf Temperature plot documents for each reactor have also stopped. Again, change the “15″ to … Read entire article »

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TEPCO Sending Workers Into Units 2 & 3 Basements In A Few Hours

TEPCO intends to send workers into the sub basement of units 2 and 3 on March 14th (a few hours from now) to inspect the torus area. The work will consist of checking for radiation levels, temperature, humidity, water levels etc. and possibly opening the door into the torus room. TEPCO thinks workers will receive a dose of 10 mSv each for the trip. This work could be both risky and significant since there is some speculation that corium or at least very highly radioactive water may reside in the torus. Unit 3 currently shows as .2 sV/h torus radiation Unit 2 currently shows at 16 sV/h torus radiation at the “B” sensor. TEPCO has this flagged as failed. If this reading is accurate that is a very dangerous level of radiation. Sievert to … Read entire article »

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