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

  • Nuclear Reactors 1103 – Silicon Valley Venture Capital Flows To Nuclear Power – Part 1 of 4 Parts

    Part 1 of 4 Parts
         Venture capitalists in Silicon Valley and other tech hubs are investing significant money in nuclear energy for the first time. That is changing the pace of innovation in the nuclear industry. Ray Rothrock is a longtime venture capitalist who has personal investments in 10 nuclear startups. He said, “There has not been a resurgence of nuclear power, ever, since its heyday in the late 1970s. Now that is changing. I have never seen this kind of investment before. Ever.”
          Jacob DeWitte is the CEO of the micro-reactor startup Oklo. He says that the landscape has changed dramatically since he began raising funds in 2014. At the time, he was a part of the Y Combinator startup incubator. He added, “More investors are interested, more investors are excited by the space, and they’re getting smarter to do the diligence and know what to do here — which is good.”
         John Parsons is an economist and lecturer at MIT. He said, “I think having fresh perspectives is really good.  Nuclear energy is a very complex science, and it’s been supported by the federal government and at these national labs. And so that’s a very small circle of people. And when you broaden that circle, you get a lot of new minds, different thinking, a variety of experiments.”
         Parsons continued, “In any industry, there can be a ‘groupthink’ or ‘narrowness’ in the way things are done over time. With private investment in the space, there will be out-of-the-box thinking. Maybe that out-of-the-box thinking doesn’t produce anything useful. Maybe it turns out that the old designs are the best. But I think it’s really wonderful to have the variety of takes.”
         In spite of the enthusiasm of the previous quotes, not everyone is so optimistic that the recent flow of venture dollars will actually lead to significant progress.
           Naomi Oreskes is a professor of the history of science at Harvard University. She said, “Investors have often invested in stupid things that didn’t work. Because the reality is that in a 75-year history of this technology, it has never been profitable in a market-based system. If investors are putting money into nuclear now, that’s because they think they can make money, and I can only think they believe they will make money because they think that there’s a big opportunity to have the federal government pick up a big part of the tab.”
         From 2015 to 2021, total venture capital deal flow in the U.S. has increases fifty-four percent in terms of deals actually closed and two hundred and ninety four percent by dollar value. This is according to data compiled by the private capital market research firm Pitchbook. In that same time period, climate investing deal flow in the U.S. rose by two hundred and fourteen percent in terms of volume and one thousand three hundred and forty-eight by dollar value. In the nuclear space, investments rose even faster by three hundred twenty five percent by volume and three thousand six hundred forty-two percent by dollar value.
    Please read Part 2 next

  • Geiger Readings for Dec 12, 2022

    Ambient office = 77 nanosieverts per hour

    Ambient outside = 155 nanosieverts per hour

    Soil exposed to rain water = 160 nanosieverts per hour

    Grape from Central Market = 104 nanosieverts per hour

    Tap water = 87 nanosieverts per hour

    Filter water =75 nanosieverts per hour

  • Geiger Readings for Dec 11, 2022

    Ambient office = 87 nanosieverts per hour

    Ambient outside = 110 nanosieverts per hour

    Soil exposed to rain water = 113 nanosieverts per hour

    English cucumber from Central Market = 99 nanosieverts per hour

    Tap water = 68 nanosieverts per hour

    Filter water = 65 nanosieverts per hour

  • Geiger Readings for Dec 10, 2022

    Ambient office = 66 nanosieverts per hour

    Ambient outside = 111 nanosieverts per hour

    Soil exposed to rain water = 111 nanosieverts per hour

    Blueberry from Central Market = 126 nanosieverts per hour

    Tap water = 90 nanosieverts per hour

    Filter water = 70 nanosieverts per hour

    Dover Sole from Central = 95 nanosieverts per hour

  • Nuclear Reactors 1102 – BWX Technologies Will Provide TRISO Fuel For The Project Pele Microreactor

         BWX Technologies Inc is headquartered in Lynchburg, Virginia. BWX is a supplier of nuclear components and fuel to the U.S. government. They provide technical, management and site services to support governments in the operation of complex facilities and environmental restoration activities. BWX will produce TRISO fuel in to power the Project Pele microreactor. Pele is the first microreactor to be manufactured and operated in the U.S.
          BWX is manufacturing a core for Project Pele, TRISO fuel for additional reactors and coated particle fuel for NASA under a thirty-seven-million-dollar award from the Idaho National Laboratory (INL). INL will manage the contract and provide technical support and oversight.
         The U.S. Department of Defense (DoD) Strategic Capabilities Office (SCO) has partnered with the Department of Energy (DoE) to develop, prototype and demonstrate a transportable reactor. This is being called a whole-of-government effort in Project Pele to develop a transportable microreactor. Such reactors can deliver clean, low-carbon energy where and when it is needed. They will be a resilient power source for DoD operational needs. They can also potentially be used in the civilian and commercial sectors for disaster response and recovey, power generation at remote locations, and deep decarbonization initiatives.
         BWX was chosen earlier this year by the SCO to construct the prototype which is to be completed and delivered in 2024 for testing at INL. The TRISO fuel will be delivered separately.
         TRISO stands for TRIstructural-ISOtropic fuel. The TRISO particles contain a spherical kernel of enriched uranium oxycarbide surrounded by layers of carbon and silicon carbide. These outer layers trap fission products inside the particles. TRISO has been described by the DoE as “the mort robust nuclear fuel on Earth.” The high-assay low enrichment (HALEU) fuel is down blended from the U.S. stockpile of high-enriched uranium (HEU). BWX’s facilities are the only private U.S. facilities that are licensed to possess and process HEU.
           Kathryn Huff is the U.S. Department of Energy Assistant Secretary for Nuclear Energy. She said that it was “extremely exciting to see decades of DOE’s investments in TRISO fuel … paying off to power many of the most innovative advanced reactor designs to be deployed within this decade”.
          John Wagner is the INL Laboratory Director. He said, “This commercial TRISO fuel production line is the culmination of more than 15 years of work at INL and other DOE national laboratories, in partnership with BWXT, to develop and qualify this fuel with immense potential for use in microreactors, space reactors and other advanced reactor concepts. As the United States moves steadily toward a carbon-free energy future, nuclear power is an essential part of the journey. Project Pele will demonstrate the viability of this fuel type, opening the door for other advanced reactors.”
         BWX said that it has expanded its speciality coated fuel production manufacturing capacity through previously announced awards funded by the DoD Operational Energy Capabilities Improvement Fund Office and NASA and program management provided by SCO. In addition to TRISO, BWX also produces speciality coated fuels for NASA for the space nuclear propulsion project inside the agency’s Space Telescope Mission Directorate.

  • Geiger Readings for Dec 09, 2022

    Ambient office = 54 nanosieverts per hour

    Ambient outside = 114 nanosieverts per hour

    Soil exposed to rain water = 114 nanosieverts per hour

    Red bell pepper from Central Market = 79 nanosieverts per hour

    Tap water = 110 nanosieverts per hour

    Filter water = 87 nanosieverts per hour