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 October November 03, 2023

    Geiger Readings for October November 03, 2023

    Ambient office = 86 nanosieverts per hour

    Ambient outside = 95 nanosieverts per hour

    Soil exposed to rain water = 97 nanosieverts per hour

    English cucumber from Central Market = 101 nanosieverts per hour

    Tap water = 103 nanosieverts per hour

    Filter water = 94 nanosieverts per hour

  • Nuclear Reactors 1298 – Czech Republic SMR Ddevelopment Roadmap Approved

    Nuclear Reactors 1298 – Czech Republic SMR Ddevelopment Roadmap Approved

         A minister-led working group in the Czech Republic examined the potential of small modular reactors (SMRs), possible sites and called for the start of construction in the first half of the 2030s. The plans will be included in the State Energy Policy and Spatial Development Policy of the Czech Republic report.
         Jozef Síkela is the Czech Minister of Industry and Trade. He issued a statement the day after final bids were received for the construction of a new reactor at the Dukovany nuclear power plants. He said, “Small and medium-sized reactors will be a great addition to the modern power system of the Czech Republic, both in terms of electricity and heat generation. Our vision is for SMRs to complement large nuclear units from 2030s-40s onwards. In this way, we will capitalize on the unique know-how of our nuclear industry. The approved roadmap will provide investors with a certainty, so that they can prepare sites and subsequently make investment decisions. This will give Czech companies the opportunity to participate in supply chains of Czech and foreign projects in the future, to look for partners abroad and play an important role in the development of this promising field.”
         The Czech government approved the working group’s Czech SMR Roadmap – Applicability and Contribution to the Economy document. The Roadmap sets out the framework for SMR’s potential in the Czech Republic and suggests sites, possible investor models and legislative changes. The Roadmap also includes information on the various design options. The ministry’s statement noted that among those interested in cooperating with Czech companies were Rolls-Royce SMR and GE Hitachi. The Roadmap mentioned that their designs were said to be the “most advanced in the development of a functional SMR”.
         The Roadmap considered the progress of Czech SMR projects but suggested that they are at a “very early stage of development”. It goes on to suggest that the government continues to back them through other programs designed to support research and development rather than as the initial wave of SMRs. However, the Roadmap does raise the question of to what extent “foreign designs will be available if the high demand indicated by for instance neighboring Poland materializes (sources hint at plans for 79 reactors from GE Hitachi, up to 8 GW from Rolls-Royce SMR and others)”.
         With respect to potential sites, the Roadmap includes forty five in total. These include the existing nuclear power plants Temelin and Dukovany and adds “promising locations at current coal-fired power plants, e.g. Dětmarovice and Tisováplus”.
         Petr Třešňák is the Deputy Industry Minister. He said, “Due to their size and power output, these reactors can be a suitable replacement for coal-fired power plants which are being phased out. Apart from current nuclear sites, which were primarily intended for the construction of classic nuclear reactors, SMRs can be sited on other locations. These need to be identified and prepared in time.”
         The ministry said, with respect to SMRs, that “the next five to ten years will be key in terms of their marketability, with corresponding business opportunities” and that, as with other energy projects, will require some form of state aid and the “Czech government advocates for a level playing field for nuclear energy development at the European level, particularly in the area of EU policies and programs, financing, and market design”.

  • Geiger Readings for November 02, 2023

    Geiger Readings for November 02, 2023

    Ambient office = 98 nanosieverts per hour

    Ambient outside = 130 nanosieverts per hour

    Soil exposed to rain water = 100 nanosieverts per hour

    Blueberry from Central Market = 180 nanosieverts per hour

    Tap water = 117 nanosieverts per hour

    Filter water = 105 nanosieverts per hour

  • Nuclear Reactors 1297 – Norsk Kjernekraft Is Studying The Deployment of Small Modular Reactors In Norway

    Nuclear Reactors 1297 – Norsk Kjernekraft Is Studying The Deployment of Small Modular Reactors In Norway

         Norsk Kjernekraft (NK) has submitted a proposal to Norway’s Ministry of Oil and Energy for an assessment of the possibility of constructing a nuclear power plant based on multiple small modular reactors (SMRs) in the municipalities of Aure and Heim. NK said that this marks the first formal step towards the construction of country’s first nuclear power plant.
         According to the preliminary plan, the new power plant will be located in a common industrial area in the border region between Aure and Heim. NK noted that other areas in the municipalities may also be relevant. The plant will consist of several SMRs. Together they will generate around twelve terawatts of electricity annually. This corresponds to an increase in power production of about eight percent.
         NK signed an agreement of intent earlier this year on the investigation of nuclear power prospects with several municipalities which include Aure and Heim.
         In June, NK signed a letter of intent with TVO Nuclear Services to jointly investigate the deployment of SMRs in Norway. TVO is a consulting company wholly owned by Finnish utility Teollisuuden Voima Oyj. The cooperation agreement included the assessment of the suitability and effectiveness of the development of nuclear power in the Norwegian municipalities of Aure, Heim, Narvik and Vardø.
         Together with NK, Aure and Heim have now found a suitable area. The new plant is “to ensure that the municipality’s greenhouse gas emissions are reduced, while at the same time further green industry can be established”.
         An environmental impact assessment can begin once the proposal for the new plant has been approved by the Ministry of Oil and Energy. NK said that it was planning a transparent process with the public. The involvement of the local population will be important.
         First, the impact assessment will have to show that the facility can be built within acceptable limits. Then licensing processes will follow in accordance with Norwegian laws and regulations. After these two phases are complete, construction can finally start. NK noted that several important milestones must be achieved before major investments and final decisions can be made.
          Jonny Hesthammer is the CEO of NK. He said, “Aure and Heim are in the running, and with political will and acceptance among the citizens, we can have nuclear power in place in 10 years, depending on how quickly the authorities process the application. Half of Norway’s total energy consumption is still fossil fuels. The power plant planned in Aure and Heim will thus contribute to significant electrification and emission reductions. With good maintenance, the plant can last up to a hundred years. It will therefore be able to deliver cheap electricity to the inhabitants for many decades after it has been paid off.”
         NK intends to construct, own and operate SMR power plants in Norway in collaboration with power-intensive industries. It states that it will prepare license applications in accordance with national regulation and international standards. NK will follow the International Atomic Energy Agency’s approach for milestones. It will focus on what creates value in the early phase. Financing will occur in collaboration with capital-strong industry and solid financial players.
        Last July, NK and Denmark’s Seaborg signed a letter of intent to study the deployment of Seaborg’s compact molten salt reactor in Norway. However, NK has said that it intends to initially establish SMRs based on conventional nuclear technology.

  • Geiger Readings for November 01, 2023

    Geiger Readings for November 01, 2023

    Ambient office = 100 nanosieverts per hour

    Ambient outside = 95 nanosieverts per hour

    Soil exposed to rain water = 97 nanosieverts per hour

    Avocado from Central Market = 73 nanosieverts per hour

    Tap water = 105 nanosieverts per hour

    Filter water = 91 nanosieverts per hour

  • Nuclear Reactors 1296 – Analysis Of Need For Australia To Construct Nuclear Power Plants – Part 2 of 2 Parts

    Nuclear Reactors 1296 – Analysis Of Need For Australia To Construct Nuclear Power Plants – Part 2 of 2 Parts

    Part 2 of 2 Parts (Please read Part 1 first)
         Nuclear advocates claim that Australia has no choice. They say that wind and solar are intermittent power sources. They claim that the cost of making them reliable is too high.
         Here is a comparison of the cost of reliably delivering a megawatt hour of electricity to the grid from nuclear power versus wind and solar power. According to the Commonwealth Scientific and Industrial Research Organization (CSORO) and energy market analyst Lazard Ltd, nuclear power has a cost of one hundred and forty dollars to two hundred and thirty dollars per megawatt hour produced.
         Without subsidies or state finance, the four plants mentioned above generally meet or beat the high end of this range. In contrast, Australia is already building wind and solar plants at under forty-five dollars and thirty-five dollars respectively. This is about one tenth of the cost of nuclear power.
         The CSIRO has also estimated the cost of renewable energy that has been made reliable, mainly by batteries and other storage technologies. Australia could build a renewables grid big enough to meet current demand twice over and still pay less than half the cost of nuclear power.
         Proponents of nuclear power say that small modular reactors (SMRs) offer the possibility of being produced at scale. This may finally allow nuclear power to harness Wright’s law.
         However, commercial SMRs are still years from deployment. NuScale is a U.S. SMR company. It is scheduled to construct two nuclear power plants in Idaho by 2030. Ground has not yet been broken for these projects, but the on-paper costs have already risen to about one hundred and ninety dollars per megawatt hour.
         SMRs are still decades away from broad deployment. If early examples work well, in the 2030s there will be a round of early SMRs in the U.S. and European countries that have existing nuclear skilled workers and nuclear supply chains. If that goes well, there may be a serious rollout from the 2040s onwards.
         In these same decades, solar, wind and storage will still be descending the Wright’s law cost curve. Last year the Morgan administration was promoting the goal of getting solar below fifteen dollars a megawatt hour by 2030. SMRs would have to achieve inconceivable cost reductions to be economically competitive.
         SMRs might be necessary and competitive in counties with no renewable energy resources. However, Australia has the richest combined solar and wind resources in the world.  
         The big question is whether Australia should lift its ban on nuclear power. A repeal would have no practical effect on what happens in electricity markets. However, it might have important political effects.
         A future Australian leader might seek short-term advantage by offering huge subsidies for construction of nuclear power plants. The true costs would arrive years after any such leader had left office. That would be a disaster for Australia. With unmatched solar and wind resource, Australia has the chance to deliver the cheapest electricity in the industrial world.
         Mr. Dutton may be correct that the ban on nuclear energy is not necessary. However, in terms of getting to net zero emissions as quickly and as cheaply as possible, Mr. Bowen has the relevant argument. One assessment from the U.K. said nuclear power for Australia would be “economically insane”.