TEPCO’s nuclear commercials draw disgust from evacuees. asahi.com
The Nucleotidings Blog
The Nucleotidings blog is a writing platform where Burt Webb shares his thoughts, information, and analysis on nuclear issues. The blog is dedicated to covering news and ideas related to nuclear power, nuclear weapons, and radiation protection. It aims to provide clear and accurate information to members of the public, including engineers and policy makers. Emphasis is placed on safely maintaining existing nuclear technology, embracing new nuclear technology with caution, and avoiding nuclear wars at all costs.
Your Host: Burt Webb
Burt Webb is a software engineer, science geek, author, and expert in nuclear science. Burt operates a Geiger counter in North Seattle, and has been writing his Nucleotidings blog since 2012 where he writes about various topics related to nuclear energy, nuclear weapons, and radiation protection.
Burt Webb has published several technical books and novels. He works as a software consultant.
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Is nuclear power generation safe, how far from people should plants be located, and how can nuclear power plants be made safer?
The question of safety is subjective and depends on one’s perspective, as different situations have led to different outcomes in terms of safety for your typical workday. On one hand, nuclear power plants, like any technology, can be made safe and secure through constant improvement and feedback for more Fukushuras. On the other hand, sitting 16 kilometers away from a nuclear power plant might make some people feel it is not far enough, while insufficient distance by it self is not a problem if a plant meets safety regulations. Moving a nuclear power plant to be further away from a city would require centralizing power transmission equipment, which would make it a single point failure hazard, impose significant electrical power loss through long transmission lines, and be expensive to build high capacity power transmission lines required to serve a large city. Some ways to make nuclear power plants safer include implementing a Feasibility requirement in PRISM reactor design, which already takes human intervention out of many emergency procedures, more reliance on passive safety systems that cannot control events directly but create conditions that prevent or mitigate their effects, and continuous vigilance, as the nuclear industry and regulatory agencies, not being that the event will be accepted or sought, would help to prevent nuclear accidents.
What do you mean by “Fukushuras”?
“Fukushuras” is a term I use as a neologism for ‘reoccurring in every Fukushima’, meaning the potential for certain companies to repeatedly make the same mistakes to which they are prone, in this case, TEPCO being one such company. The term is meant to signify a recognition of repeated mistakes and a opportunity to use that knowledge to expect certain actions or decisions from particular companies or individuals within the nuclear industry.
There has been a lot of new lately about the deal being forged between India and Westinghouse for the construction of six new nuclear reactors in India. The India government really wants nuclear power to help with their chronic shortage of electricity. The U.S. wants to help Westinghouse sell reactors to other nations.
President Obama and India Prime Minister Modi met recently and issued a joint statement about the preliminary work on the contract for six of the new AP1000 Westinghouse reactors. The six reactors could cost up to forty billion dollars which would make it the biggest commercial contract ever between India and the U.S.
Critics of the deal complain that the selection of Westinghouse was based on executive decisions and not on regular market practices. The former head of the Indian Nuclear Energy Commission admitted that India had to consider the commercial interests of other countries and their companies. He said that India was obligated to buy these reactors from the U.S. in return for diplomatic support on international issues.
Other concerns have been raised about Westinghouse’s financial problems. This year, Toshiba, the Japanese company that owns Westinghouse, announced that it was going to have to write down two billion three hundred million dollars of the value of Westinghouse. One of the main reasons for the write down was the fact that Westinghouse is having trouble selling its new AP1000 reactor design. Ten years ago, Westinghouse expected to have a dozen orders for its new reactor. Currently, only four reactors have been ordered. Florida Power and Light just delayed its planned purchase of two AP1000s for four years and the Tennessee Valley Authority cancelled their plan to buy two AP1000 reactors because of financial concerns.
Currently, two AP1000s are being constructed in the state of Georgia. The estimated cost for the two reactors is now about twenty one billion dollars. This works out to about one hundred and four thousand dollars per megawatt of capacity. The current capital costs of Indian domestic reactors is about fifteen thousand dollars per megawatt of capacity which puts the AP1000s way over the cost of constructing domestic reactors in India. The costs of electricity from the AP1000s in the first year could be as much as five times the cost of installed solar power systems. This just does not make any sense economically. In addition, considering the AP1000 reactors to be low-carbon sources in the fight against climate change works out to much more cost for lowering carbon emissions than green sources such as solar.
Indian concessions to Westinghouse have also drawn criticism. Indian has the most stringent industrial accident laws in the world that make equipment manufactures liable for accidents caused by their equipment. India just passed the Convention on Supplementary Compensation” (CSC) for Nuclear Damage law which is a direct contradiction of the earlier law. If there is an accident at one of the AP1000 reactors, it may be difficult to sue Westinghouse because of the new law and the grounds that Indian courts do not have jurisdiction over a multination corporation that is not based in India.
India would be well advised to cancel the purchase of the AP1000s from Westinghouse. This deal is just not beneficial to India.
Democratic Party Secretary General Yukio Edano may take legal action to challenge Fukushima crisis report. english.kyodonews.jp
The second unit at the Changjiang nuclear power plant on China’s southern island province of Hainan has been connected to the electricity grid, China National Nuclear Corporation (CNNC) has announced. world-nuclear-news.org
Uranium is a Fossil Fuel. closeindianpoint.wordpress.com
I have mentioned in previous blogs that I am concerned about the degree to which the operators of nuclear power plants follow government regulations with respect to problems and accidents at nuclear power plants.
The United States Nuclear Regulatory Commission (NRC) is charged with making sure that U.S. nuclear power plants develop plans for what their workers must do in case of an accident. These plans include actions that must be taken at the plant as well as notification of local, state and federal authorities with respect to actions that should be take outside of the plant such as warning nearby residents.
The NRC has four levels of classification for emergencies at nuclear power plants. They are Unusual Event, Alert, Site Area Emergency and General Emergency with increasing severity. These are called Emergency Action Levels (EALs). Each site has a set of these pre-determined observable thresholds that tell the operators which of these levels a particular incident falls into. EALs include such things as readings on instruments, status indicators on equipment, results of analytical testing, and other types of records. Once a level has been established, a series of appropriate and timely responses are supposed to be triggered. EALs have been circulated since by the NRC to U.S. nuclear plant operators since 1976.
Successful emergency responses depend on correct identification of level and execution of proper actions in a timely fashion. The more severe the level of the incident, the more resources need to be brought to bear. If the severity of the incident is not properly identified, the correct responses are not given, and/or things to not happen on the proper schedule, then the necessary actions to protect the public may not be taken.
Unfortunately, despite the distribution of EALs to plant operators and the requirement that all U.S. nuclear plants have detailed and site specific emergency procedures that follow the EALs, these plans are not always correctly followed when incidents occur. Whether through lack of training, lack of maintenance of equipment, lax supervision or other problems, U.S. nuclear plant emergencies have not always been dealt with in a manner consistent with the mandated protection of the public and the environment.
In 2004 at the Perry nuclear plant in Ohio, it took the operators one hundred and sixty minutes to carry out the necessary readings. In the Surry plant in Virginia in 2006, an event was misclassified as to severity level. In River Bend in Louisiana in 2004 and 2005, the operators did not repair seismic detectors that were inoperable in spite of the fact that they were necessary of evaluation EALs. At the Summer plant in South Carolina, workers improperly altered their EALs to require unavailable information to declare an emergency level. In 2010 EALs at the Prairie Island plant in Minnesota and in 2011 at Crystal River 3 in Florida demanded radiation level readings that were not possible for the monitoring equipment.
These are only a few examples among many that illustrate exactly the concerns that I have expressing. If operators of nuclear plants cannot or will not follow proper procedures in evaluating the severity of nuclear accidents, then those nuclear power plants should be shut down to protect the public and the environment.