The Shape of Water: Nuclear Divers Return to Sellafield’s Legacy Ponds

September 28, 2023, 3:38PMRadwaste Solutions
Josh Everett, a diver with UCC UK Ltd., enters bay No. 11 of Sellafield’s Pile Fuel Storage Pond in December 2022, the first time in over 60 years a diver has entered the legacy pond, used to store a variety of spent nuclear fuel types and wastes. During this commissioning nuclear dive, Everett’s underwater tasks included emergency diver extraction trial confirmation, radiation monitoring system verification, and radiation contact meter commissioning. (Photos courtesy of Sellafield Ltd.)

The last time a human entered the Pile Fuel Storage Pond at the Sellafield nuclear site in Cumbria, England, was in 1958, when records show a maintenance operator and health physics monitor carried out a dive into the newly constructed pond to repair a broken winch. At least that was true until December 2022, when Josh Everett, a diver from the U.K. specialist nuclear diving team Underwater Construction Corporation (UCC) UK Ltd., became the first person in more than 60 years to work in one of the most unique workplaces in the world.

50 minerals critical to our society

September 28, 2023, 7:15AMNuclear NewsJames Conca
Three of the USGS's critical minerals: (Left to right) A piece of native copper recovered by dissolution of the host rock (Photo: Jonathan Zander); A sample of praseodymium in a vial of argon (Photo: Jurii/Wikimedia Commons); A billet of high-enriched uranium that was recovered from scrap processed at the DOE’s Y-12 National Security Complex in Oak Ridge, Tenn (Photo: DOE).

Last year, the U.S. Geological Survey (USGS) released its 2022 list of 50 minerals that are essential to the function of our society, especially the economy and national security. Whether it’s indium for LCD screens and aircraft wind shielding, cobalt for iPhones, uranium for nuclear reactors and munitions, rare earth elements for wind turbine magnets, lithium for rechargeable batteries, or tantalum for electronic components, if we do not have an ample supply, bad things will happen.

Advancing fuel production and performance for the next generation of reactors

September 26, 2023, 7:05AMNuclear NewsW. A. “Art” Wharton III

W. A. “Art” Wharton III

Multiple market forces on nuclear fuel have arisen seemingly at the same time since the Russian war in Ukraine started. Accident tolerant fuels (ATF), lead test rods, and lead test assemblies have had their first shot in real operating conditions, in recent cycles. But the popularity of their so-called accident tolerance has nothing to do with accidents, since any practical nuclear professional knows that the safety of nuclear energy is already higher than that of any other electricity generation source. The popularity comes down to fuel performance. Are we on the cusp of a revolution in nuclear fuel performance under the guise of accident tolerance?

The U.S. nuclear fuel Gordian knot: The uncertain path forward

September 1, 2023, 3:07PMNuclear NewsMatt Wald

In the last few weeks of 2021, when it was clear that the Russian invasion of Ukraine had put this country’s uranium fuel supply in jeopardy, nuclear energy advocates lobbied hard to attach provisions to various pieces of “must-pass” legislation—such as the National Defense Appropriations Act (NDAA), the Ukraine Supplemental Appropriations Act, the Infrastructure Investment and Jobs Act, and the CHIPS and Science Act—to have the government get the ball rolling on new domestic uranium fuel production capacity. Four times they thought they had succeeded, that Congress was going to allocate enough money to start the United States on the road to a secure supply of reactor fuel, including the higher-enriched fuel needed for advanced reactors.

The nuclear power disconnect in climate finance taxonomies

July 17, 2023, 7:00AMNuclear News

The European Union agreed in July 2022 to include nuclear power in its taxonomy of environmentally sustainable economic activities. Yet as Columbia University senior research scholar Matt Bowen and research assistant Kat Guanio note in commentary published July 6 by Columbia University’s Center on Global Energy Policy, that policy decision remains “a bit of an outlier.” Despite nuclear energy’s anticipated role in achieving decarbonization, many climate finance taxonomies either explicitly exclude nuclear power or are discouragingly ambiguous.

The Civil Nuclear Credit Program: An overview

June 2, 2023, 3:07PMNuclear NewsMichael McQueen

Officially established on November 15, 2021, with the signing of the $1.2 trillion Infrastructure Investment and Jobs Act—aka the Bipartisan Infrastructure Law, or BIL—the Department of Energy’s Civil Nuclear Credit Program was designed to give owners/operators of commercial U.S. reactors the opportunity to apply for certification and competitively bid on credits to help support the continued operation of economically troubled units. Finally, the federal government, and not just certain farsighted state governments, would recognize nuclear energy for its important grid reliability and decarbonization attributes.

Westinghouse Parts Business MG Set Control Power Cabinets

June 1, 2023, 11:37AMSponsored ContentWestinghouse Parts Business
Next Generation MG Control Power Cabinets Installed

Westinghouse Parts Business (WPB) is proud of the first next generation Motor Generator (MG) Set System fully operational at Palo Verde Generating Station. The team completed a first-of-a-kind (FOAK) implementation and installation at the power plant operated by Arizona Public Service (APS), including the next generation MG Control Power Cabinets and new MG Sets. Additionally, Westinghouse installed the new ARCH (Advanced Rod Control Hybrid) system. These systems were installed in a single outage providing additional synergies and cost savings to operations.

The legacy of the Shippingport Atomic Power Station

May 26, 2023, 2:59PMNuclear NewsJeremy Hampshire
The Shippingport Atomic Power Station in Shippingport, Pa., the first full-scale nuclear power generating station in the United States, began operating in 1957.

Serving as the world’s first scalable nuclear power plant, Shippingport Atomic Power Station led the way for today’s nuclear generation fleet. Shippingport was centrally located roughly 25 miles from Pittsburgh, Pa., to provide electrical generation for many end-users. Shippingport also served as an experimental reactor that allowed engineers and designers the ability to test different core designs, and as such, the site housed additional testing equipment otherwise not commonly seen. The primary goal of Shippingport was always to generate electricity; however, its ability to function as an experimental reactor served utilities in further development of scalable nuclear generation.

Research quantifies the health and climate value of the U.S. nuclear fleet

May 9, 2023, 7:00AMNuclear News
A still from a video posted by MIT that illustrates the air pollution that would be generated over one year by a grid with no nuclear power. (Credit: MIT)

Nuclear power is the single largest source of clean energy in the United States, but how can the value of “clean” be measured? Two recent reports by researchers at the Massachusetts Institute of Technology and Pacific Northwest National Laboratory, respectively, measured the clean energy benefits of nuclear energy in different ways: the benefits to human health from the air pollution avoided and the future economic value of avoided carbon emissions.

ANS solicits further feedback on potential certification concepts

May 5, 2023, 12:02PMANS News

Earlier this year, the American Nuclear Society's newly formed Special Committee on Certification started conducting market research with the help of a third party contractor to determine the viability of a nuclear certification program. An initial survey was sent to the membership back in March with the goal of determining what certification programs were already available and what type of certification program ANS could develop to benefit the community.


U.S. nuclear capacity factors: Credits where due

April 28, 2023, 3:03PMNuclear NewsSusan Gallier

Forty years ago, Nuclear News published an analysis of U.S. nuclear plant operations over the three years that followed the Three Mile Island-2 accident in 1979, scrutinizing capacity factors as a measure of how well a reactor was performing compared to its potential. The purpose: “To call attention to the units that have had the best results, and to explore the question: What have the personnel at these top units been doing right?”

Dynamic radioisotope power system development for NASA missions

April 21, 2023, 3:19PMNuclear NewsSal Oriti, Ernestina Wozniak, and Max Yang
The multimission radioisotope thermoelectric generator for NASA’s Mars 2020 Perseverance rover is tested at NASA’s Kennedy Space Center in 2020. The choice of an MMRTG as the rover’s power system gave mission planners significantly more flexibility in selecting the rover’s landing site and in planning its surface operations. (Photo: NASA)

Under the Radioisotope Power Systems Program, NASA and the Department of Energy have been advancing a novel radioisotope power system (RPS) based on dynamic energy conversion. This approach will manifest a dynamic RPS (DRPS) option with a conversion efficiency at least three times greater than a thermoelectric-based RPS. Significant progress has recently been made toward this end. A one-year system design phase has been completed by NASA industry partner Aerojet Rocketdyne, which resulted in a DRPS with power of 300 watts-electric (We) with convertor-level redundancy. In-house technology development at the NASA Glenn Research Center (GRC) has demonstrated the conversion devices in relevant environments and has shown all requirements can be met. Progress has also been made on the control electronics necessary for dynamic energy conversion. Flight-like controllers were recently upgraded and achieved an 11-percentage-point increase in efficiency. Control architectures have been developed to handle the multiconvertor arrangements in the latest DRPS design. A system-level DRPS testbed is currently being assembled that will experimentally demonstrate the DRPS concept being pursued.

NEA report quantifies need to attract and retain women in the nuclear sector

March 8, 2023, 3:03PMNuclear News

Women including Marie Skłodowska-Curie, Lise Meitner, Chien-Shiung Wu, and Katharine Way were key pioneers in nuclear science and technology, but today the visibility of women in the nuclear sector remains low. Women make up just one-quarter of people employed in the nuclear sector, and for STEM positions in that field specifically, they make up just one-fifth of the workforce. About 8,000 of those women responded to an a survey from the OECD Nuclear Energy Agency, and their responses have been captured in Gender Balance in the Nuclear Sector, a new report from the OECD NEA.

Exploring the possibilities of ANS nuclear certification programs

March 3, 2023, 12:00PMANS News

Last year, American Nuclear Society volunteer leadership and ANS staff began the process of investigating the creation of a nuclear certification program to be developed and administered by ANS. Shortly after the Annual Meeting in June 2022, the Certification Committee, chaired by Rebecca Steinman, was formed. Members include ANS President Steven Arndt, Mary Lou Dunzik-Gougar, Chip Lagdon, Christina Leggett, John Mahoney, Craig Piercy, Catherine Prat, Alexandra Siwy, Tracy Stover, Josh Vajda, and Art Wharton.

X-energy, Dow agree to embed an Xe-100 demo at a Gulf Coast industrial facility

March 1, 2023, 3:07PMNuclear News
Artist’s rendering of an Xe-100 plant. (Image: X-energy)

Dow and X-energy announced today that they have signed a joint development agreement (JDA) to demonstrate the first grid-scale advanced nuclear reactor at an industrial site in North America within a decade. As part of the agreement, Dow is now a subawardee under X-energy’s Advanced Reactor Demonstration Program (ARDP) Cooperative Agreement with the Department of Energy.

American Nuclear Society unveils draft recommendations for updating industry and EPA geological repository standards for used fuel

February 17, 2023, 7:59AMPress Releases

LA GRANGE PARK, Illinois – Today, the American Nuclear Society (ANS) released draft recommendations on updating public health and safety standards for the permanent disposal of commercial used nuclear fuel and high-level radioactive waste at future geological repository projects in the United States. The draft report provides a recommended framework for revisiting U.S. Environmental Protection Agency (EPA) geologic repository standards.

The need for sustainable nuclear/alpha skills in the U.K.: A Sellafield perspective

February 10, 2023, 3:01PMNuclear NewsHenry Hickling

The United Kingdom’s nuclear renaissance

The United Kingdom’s nuclear industry is expanding, with the U.K. government committed to supporting the build of more civil nuclear power plants (deployments up to 24 GW by 2050)1 while also undertaking large-scale decommissioning work in parallel.2 The defense sector is experiencing growth with the decommissioning, operation, and new build of submarines, plus managing the U.K.’s deterrent.3 Although the civil and defense programs are separate, they draw on the same group of skills and people.

Nuclear energy: enabling production of food, fiber, hydrocarbon biofuels, and negative carbon emissions

January 27, 2023, 3:03PMNuclear NewsCharles W. Forsberg and Bruce E. Dale

In the 1960s, Alvin Weinberg at Oak Ridge National Laboratory initiated a series of studies on nuclear agro-­industrial complexes1 to address the needs of the world’s growing population. Agriculture was a central component of these studies, as it must be. Much of the emphasis was on desalination of seawater to provide fresh water for irrigation of crops. Remarkable advances have lowered the cost of desalination to make that option viable in countries like Israel. Later studies2 asked the question, are there sufficient minerals (potassium, phosphorous, copper, nickel, etc.) to enable a prosperous global society assuming sufficient nuclear energy? The answer was a qualified “yes,” with the caveat that mineral resources will limit some technological options. These studies were defined by the characteristic of looking across agricultural and industrial sectors to address multiple challenges using nuclear energy.