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.

Blog

  • Geiger Readings for Sep 05, 2015

    Ambient office = 69 nanosieverts per hour
     
    Ambient outside = 106   nanosieverts per hour
     
    Soil exposed to rain water = 126  nanosieverts per hour
     
    Mango from Central Market = 99  nanosieverts per hour
     
    Tap water = 100 nanosieverts per hour
     
    Filtered water = 91  nanosieverts per hour
     
    Salmon – Caught in USA = 148 nanosieverts per hour
     
  • Nuclear Reactors 281 – EDF Announces Delay in Hinkley Point C Reactor Project in U.K.

           I recently posted articles about the Hinkley Point C nuclear project in the U.K. It is a very complex and confusion situation with respect to technology, politics, costs, investors, environment, labor and other issues. I am returning to the Hinkley Point C project for today’s post because of some breaking news.

          EDF, the French state-owned utility, has announced that the project will be delayed. The two new reactors to be built at the Hinkley Point Power Station were supposed to be operational in 2023. Now EDF says that the two new reactors will not start generating power in 2023. The schedule has been pushed back four times already because of concerns over the safety of the design of the new European Pressurized Reactors (ERP). The ERPs will not be ready for construction until 2018 said EDF. They say that they will announce a new timetable for the new reactors once they have finalized investment plans.

           EDF has had problems finding enough investors to back the Hinkley Point C project. They have also had problems because of challenges by Austria over U.K. state support of the project and questions about investment from outside the European Union. been counting on the Chinese government to invest in the Hinkley Point C project. Areva, the company that is slated to build the new U.K. reactors, has been unable to provide the small percentage of the cost it agreed to for the project because of major problems with the construction of some reactors in France. The U.K. government is pressing potential investors to make a decision on Hinkley Point as quickly as possible in the light of potential blackouts in the U.K. if new sources of power are not brought online in the near future.

          The Organization for Economic Co-operation and Development (OECD) has stated that the projected costs for nuclear power in the U.K. is the highest in the world. They say that the cost of a nuclear plant located in Britain is estimated to be almost three times the cost of a similar plant built in China or South Korea. While it can be difficult to compare costs of nuclear power projects in different countries, it is obvious that the U.K. cost will be much higher than the cost in China. One reason is the fact that China is planning on building dozens of new nuclear reactors in the near future and this will allow economies of scale to come into play for components. In addition, the nuclear plants in China will be built by state-owned enterprises which gives the builders access to loans at low or even zero interest rates.

            It has been suggested by some in the U.K. that the U.K. government should “take back” the nuclear industry by renationalization of the twelve new nuclear power plants that are being planned. The construction and operation could be outsourced to private companies.

           As I have stated before, the Hinkley Point C project may never become operational. I predict that it will eventually be abandoned after billions of dollars have been spent.

    Hinkley Point C artist’s concept:

  • Geiger Readings for Sep 04, 2015

    Ambient office = 119 nanosieverts per hour
     
    Ambient outside = 123   nanosieverts per hour
     
    Soil exposed to rain water = 89  nanosieverts per hour
     
    Yellow bell pepper from Central Market = 167  nanosieverts per hour
     
    Tap water = 112 nanosieverts per hour
     
    Filtered water = 94  nanosieverts per hour
     
  • Nuclear Reactors 280 – Current Status of Japanese Nuclear Power Reactors

            Japan turned off all forty eight of its nuclear reactors after the Fukushima disaster in March 2011. These reactors generated thirty percent of Japan’s power. Since then there have  been investigations and studies to understand why the disaster happened and how to prevent such an event from happening in the future. All the existing nuclear power plants in Japan have been studied with respect to risk. The Abe government is still dedicated to making nuclear technology the centerpiece of Japan’s expansion of foreign trade. They also believe that nuclear power is the solution to Japan’s energy needs.

           There are currently forty two operable nuclear reactors in Japan. Nine of these will probably never be turned back on due to their inability to meet the new safety standards. Even if the utilities that own reactors make modifications to meet the new standards, there is apparently no guarantee that they will be permitted to restart. There is confusion and conflict between the Japanese courts and regulatory agencies. Two reactors that had been clear for restart by the Japan Nuclear Authority have been blocked by courts from restarting. The first of these to be turned back on is at Sendai.  

    Here is the list of the reactors in Japan and notes on their potential return to commercial operations. (Source is the Nuclear Street website.)

    “Sendai 1 is restarted; Sendai 2 is likely to receive NRA approval this year.

    Ikata 3 in Shikoku: Likely to be approved by regulators. It is viewed as having local support for a restart.

    Genkai 3 and 4 in Kyushu: Moving forward with applications for restart. Has some local support.

    Tomari 1, 2 and 3 in Hokkaido: Moving forward with applications.

    Shiame 2 in Chugoku: odds for restart uncertain; local government is investigating fuel documentation issues.

    Takahama 3 and 4, Kansai: Restart viewed as uncertain; utility is appealing court injunction preventing restart.

    Ohi 1 through 4, Kansai: Considerable uncertainty due to legal risks Has submitted application for restarts, but courts have interceded. Company appealing court’s directive.

    Higashidori 1, Tohoku: Application for restart submitted, but the outcome is uncertain due to the proximity to a tectonic fault line.

    Kashiwazaki 6 and 7, Tokyo: Odds for restart uncertain due to strong opposition in local government.

    Onegawa 1 and 2, Tohoku: No application for restart on Unit 1, fate of Unit 2 unclear – it was damaged during the Great East Japan Earthquake of March 2011.

    Tokai Daini, Japco: Approval for restart uncertain due to age of plant.

    Takahama 1 and 2, Kansai: Also uncertain due to age of Unit 1 and strident regulatory response to Unit 2.

    Hamaoka 3, 4 and 5, Chubu: Has applied for restart of Unit 3, but outcome is uncertain. Facility is close to a major tectonic fault line. Unit 5 suffered sever flooding of saltwater during March 2011 events.

    Shika 2, Hokuriku: Hurdles for restart include local fault lines and local opposition.

    Kashiwazaki 1 – 5, Tokyo: Unit 3 not approved for restart. Legal challenges beset restarts of other units. Unit 4 damaged by July 2007 earthquake event.

    Mihama 3, Hokuriku: Close to decommissioning age.

    Genkai 2, Kyushu: Upgrades viewed as too costly for restart attempt.

    Ikata 1 and 2, Shikoku: Up against age limitations and cost issues.

    Shika 1, Hokuriku: Has local opposition and sits close to a problematic fault line.

    Tsuruga 3, Japco: Has local opposition and sits close to a problematic fault line.

    Fukushima Plants – Daiichi and Daini, Tokyo: Very unlikely due to severe damage and very strong local opposition.”

           Attempts to reform the Japanese nuclear industry have failed in the past. If major changes are not made to the way nuclear power is regulated in Japan, the odds of another major nuclear accident are great. If and when such an accident occurs, it will be much harder if not impossible to turn the Japanese nuclear power reactors back on after they are shut down.

  • Geiger Readings for Sep 03, 2015

    Ambient office = 102 nanosieverts per hour
     
    Ambient outside = 85   nanosieverts per hour
     
    Soil exposed to rain water = 100  nanosieverts per hour
     
    California avacado from Central Market = 105  nanosieverts per hour
     
    Tap water = 137 nanosieverts per hour
     
    Filtered water = 123  nanosieverts per hour
     
  • Nuclear Weapons 155 – The Ongoing Threat of Nuclear Weapons – Part 2 of 2 parts

    Part 2 of 2 Parts (Please read Part 1 first)

          There is also the possibility of a non-state terrorist organization obtaining a nuclear device and using it against a state, nuclear or otherwise. It is possible that some nuclear warheads may have gone missing when the Soviet Union fell apart in 1991. There are nuclear states such as Pakistan and North Korea which have a history of shading dealings in nuclear materials and technologies which might sell a warhead to a terrorist group. The detonation of a single nuclear device by terrorists in a major city could cause the death of millions and destabilize the global economic and political system. There have been projections that a small nuclear device exploded fifty miles above the center of the U.S. could effectively destroy the U.S. with the resulting electromagnetic pulse which would fry the continental power grid. The collapse of the U.S. would lead to the collapse of the world economic system and the possible death of billions.

           And, finally, with the aging of the nuclear arsenals of the U.S. and Russia as well as the acquisition of nuclear weapons by smaller and less stable countries, there is always the danger that a nuclear warhead will be detonated accidentally. Nuclear weapons systems are designed with technology and procedures to prevent this but no human build system is perfect. There have been close calls in the past where a nuclear weapon could have been accidentally set off.

          There are a number of existential threats facing the human race including climate change, asteroid impacts, massive solar flares, plagues, collapse of major infrastructure, overpopulation leading to starvation, etc. While  the threat of nuclear detonations in populated areas has decreased since the end of the Cold War, it is certainly not gone by any means. The U.S. and Russia are both upgrading their nuclear arsenals. Non-nuclear states are working to obtain nuclear weapons. There are international tensions that could boil over into military conflicts that could result in nuclear detonations. The fact that no one can win a nuclear war will not necessarily stop someone from starting one.

     

    re is a global movement to get rid of all nuclear weapons. The human race has cringed under the nuclear threat for far too long. Pressure must be brought to bear on politicians who believe that the possession of nuclear weapons makes their nation more secure. If it was ever the case, it is certainly not the case now. We were fortunate indeed that nuclear war never broke out between the U.S. and Soviet Union but, with more and more nuclear nations and deteriorating global stability, our luck may run out.

           There is a close connection between nuclear power and nuclear weapons. Nuclear power was originally pushed on the citizens of the U.S., the Soviet Union, China and other nuclear states with the promise that it would be cheap and safe. The real reason for peaceful nuclear power projects was to support the nuclear weapons programs. The same enrichment process that creates fuel for nuclear reactors can be used to enrich uranium for nuclear weapons. The nuclear waste produced by nuclear reactors can be processed to extract plutonium for nuclear weapons. It is now obvious, after decades of use, that nuclear power is neither cheap nor safe. It would be best if the human race, in addition to destroying all nuclear warhead, also shut down all nuclear power plants and shifted to other sources of low-carbon renewable energy.

  • Geiger Readings for Sep 02, 2015

    Ambient office = 118  nanosieverts per hour
     
    Ambient outside = 58   nanosieverts per hour
     
    Soil exposed to rain water = 58  nanosieverts per hour
     
    Mexican avacado from Central Market = 102  nanosieverts per hour
     
    Tap water = 93 nanosieverts per hour
     
    Filtered water = 81  nanosieverts per hour