GLE eyes earlier enrichment, inks agreements with two largest U.S. utilities

July 11, 2022, 9:30AMNuclear News

Global Laser Enrichment (GLE) signed separate, nonbinding letters of intent in June with the two largest nuclear power operators in the United States—Constellation and Duke Energy—to assess potential nuclear fuel supply chain cooperation, including support for GLE’s deployment of laser enrichment technology in the United States. According to GLE president and chief commercial officer James Dobchuk, who delivered a presentation on June 7 at the World Nuclear Fuel Market Annual Meeting, the company’s baseline deployment schedule could be accelerated by about three years (under favorable market conditions) to supply the nuclear fuel market with uranium in a range of enrichment levels in 2027.

TRISO-X applies for advanced reactor fuel facility license

April 11, 2022, 12:01PMNuclear News
Pictured from left to right: John Tappert, NRC; Jonathan Rowley, NRC; Jacob Zimmerman, NRC; Matthew Bartlett, NRC; Tim Beville, DOE; Jennifer Wheeler, TRISO-X; John Lubinski, NRC; Pete Pappano, TRISO-X; Jill Caverly, NRC; and Shana Helton, NRC. (Photo: X-energy)

TRISO-X submitted a license application for a high-assay low-enriched uranium (HALEU) fuel fabrication facility to the Nuclear Regulatory Commission on April 6, the day after parent company X-energy announced that TRISO-X had secured a 110-acre site in Oak Ridge, Tenn., for the construction of the facility, which it is aiming to have operating in 2025.

Barrasso introduces bill to prioritize HALEU supply chain and demo reactor needs

April 8, 2022, 9:20AMNuclear News
Ingots of HALEU derived from pyroprocessing of EBR-II driver fuel at Idaho National Laboratory. (Photo: INL)

On April 7, U.S. Sen. John Barrasso (R., Wyo.), ranking member of the Senate Committee on Energy and Natural Resources, introduced the Fueling Our Nuclear Future Act of 2022. The bill would ensure a domestic supply of high-assay low-enriched uranium (HALEU) for advanced nuclear reactors by directing the Department of Energy to prioritize establishing a domestic HALEU enrichment capability and to use enriched uranium held by the DOE and the National Nuclear Security Administration to fuel advanced reactor demonstrations until U.S. commercial enrichment is available. The bill explicitly excludes uranium sourced or processed by any entity owned or controlled by the governments of Russia and China.

TRISO-X aims to have commercial fuel plant operating in 2025

April 5, 2022, 9:49PMNuclear News
Artist's rendering of the proposed TRISO-X Fuel Fabrication Facility (TF3) at the Horizon Center Industrial Park, in Oak Ridge, Tenn. (Image: X-energy)

X-energy has announced that its wholly owned subsidiary, TRISO-X, plans to build the TRISO-X Fuel Fabrication Facility, dubbed TF3, at the Horizon Center Industrial Park in Oak Ridge, Tenn. X-energy has produced kilogram quantities of fuel at its pilot plant at Oak Ridge National Laboratory through a public-private partnership.

The commercial plant will use high-assay low-enriched uranium (HALEU) to produce TRISO particles, which are fabricated into fuel forms, including the spherical graphite “pebbles” needed to fuel the company’s Xe-100 high-temperature gas reactor. Site preparation and construction are expected to get underway in 2022, and commissioning and start-up are scheduled for as early as 2025, according to X-energy.

ANS webinar looked at building domestic HALEU production capacity

March 16, 2022, 12:00PMANS News

The United States must ramp up the domestic production of high-assay low-enriched uranium (HALEU), the panelists agreed during a March 11 members-only webinar held amid heightened concerns about energy security following Russia’s invasion of Ukraine, and the day after Congress approved $45 million for the HALEU Availability Program for fiscal year 2022.

John Starkey, ANS director of public policy, moderated the webinar, which featured panelists Scott Kopple, senior director of government relations at BWX Technologies; Everett Redmond, senior technical advisor at the Nuclear Energy Institute; Benjamin Reinke, senior director of corporate strategy and advisor to the CEO at X-energy; Patrick White, project manager at the Nuclear Innovation Alliance (NIA); and Brad Williams, a member of the Senate Energy and Natural Resources Committee staff.

A recording of the webinar is available to ANS members.

Cameco to restart production at McArthur River uranium mine

February 14, 2022, 9:00AMNuclear News
Mining at McArthur River takes place between 530 and 640 meters belowground. (Photo: Cameco)

Citing “improving market sentiment,” Tim Gitzel, president and chief executive officer of the Canadian uranium mining company Cameco, announced on February 9 the planned restart of operations at the McArthur River mine in Saskatchewan.

Vogtle-2 to test Westinghouse fuel enriched to 6 percent

January 31, 2022, 7:00AMNuclear News
ADOPT fuel pellets developed by Westinghouse through the DOE's Accident Tolerant Fuel Program. (Photo: Westinghouse)

Westinghouse Electric Company and Southern Nuclear have agreed to a plan to install four Westinghouse lead test assemblies in Vogtle-2, a 1,169-MWe pressurized water reactor located in Waynesboro, Ga. Four lead test assemblies containing uranium enriched up to 6 percent U-235 will be loaded in Vogtle-2 in 2023, marking the first time that fuel rods with uranium enriched above 5 percent U-235 are put in use in a U.S. commercial power reactor.

BWXT to demonstrate TRISO fuel line operations under contract extension

January 24, 2022, 2:59PMNuclear News

BWX Technologies announced on January 24 that it has been awarded a $4.9 million contract amendment to produce TRISO fuel particles using natural uranium and to demonstrate performance under a defined production schedule. BWXT’s Nuclear Operations Group will perform the work at BWXT’s Lynchburg, Va., facility, where TRISO production was restarted in November 2020. The contract amendment was awarded by Battelle Energy Alliance, which manages Idaho National Laboratory on behalf of the Department of Energy.

Shadow corrosion is reproduced in University of Michigan lab

January 14, 2022, 9:36AMNuclear News
[CLICK TO VIEW FULL IMAGE] The diagram at left illustrates the experimental setup and the resulting zirconium oxide layer of varying thickness. The second diagram shows the circular zirconium alloy sample that is affected by the band of nickel alloy and radiation. Finally, the electron image at right shows a band of oxidation on the zirconium alloy sample. (Images: Peng Wang, Michigan Ion Beam Laboratory)

A longstanding issue in boiling water reactors—shadow corrosion on zirconium alloy fuel rods and fuel channels—has been reproduced in the Michigan Ion Beam Laboratory as part of an effort to understand and prevent the phenomenon. Research led by Peng Wang, a University of Michigan assistant research scientist in nuclear engineering and radiological sciences, was published in the January 2022 issue of the Journal of Nuclear Materials and described in a recent university news article.

How would you design a HALEU Consortium? The DOE wants to know

December 17, 2021, 7:00AMNuclear News
(Photo: DOE)

The Department of Energy asks no fewer than 21 multipart questions in its request for information on plans to set up a new program to ensure the availability of high-assay, low-enriched uranium (HALEU) in the United States, encompassing the who, what, when, where, and how of HALEU enrichment, deconversion, fabrication, and transportation. Interested parties were given just 30 days from the December 14 announcement to send their input to the DOE; the deadline is January 13.

Details: Written comments and information are requested on or before January 13. They can be submitted online at or by email to in a Microsoft Word or a PDF file. See the full request for information published in the Federal Register for additional information.

Oklo signs on as future customer for Centrus-produced HALEU

November 18, 2021, 12:00PMNuclear News
Artist’s conception of Oklo’s Aurora powerhouse. (Image: Gensler)

Oklo plans to fuel its demonstration microreactor with high-assay low-enriched uranium (HALEU). To secure a source of HALEU for its nth-of-a-kind microreactor, Oklo has signed a nonbinding letter of intent with Centrus Energy to cooperate on the deployment of a HALEU production facility.

X-energy has work ahead in quest to build TRISO-X fuel facility, Xe-100 reactor

November 10, 2021, 3:00PMNuclear News
The TRISO-X fuel pebble shown here contains TRISO particles—HALEU-bearing kernels of oxide and carbide in alternating layers of pyrolytic carbon and silicon carbide. (Image: X-energy)

X-energy and Centrus Energy announced last week that they have completed the preliminary design of the TRISO-X fuel fabrication facility and have signed a contract for the next phase of work. The planned facility would produce TRISO fuel particles and pack those particles into fuel forms, including the spherical graphite “pebbles” needed to fuel X-energy’s Xe-100 high-temperature gas reactor.

INL captures one dramatic second of a fuel rod test in slow motion

October 27, 2021, 3:13PMNuclear News

Idaho National Laboratory recently released footage of a new experiment at its Transient Reactor Test Facility (TREAT) that simulates what happens to a nuclear fuel pin when it starts to overheat. Go to Twitter for the original post, or cut to the chase and watch a 14-second clip on YouTube.

Hot U market and simmering interest in HALEU: It boils down to demand

September 22, 2021, 3:00PMNuclear News
(Click photo to enlarge) One of 16 AC100M gas centrifuges built by Centrus Energy for HALEU production in Piketon, Ohio. (Photo: Centrus Energy)

For years, pressure has been building for a commercial path to a stable supply of high-assay low-enriched uranium (HALEU)—deemed essential for the deployment of advanced power reactors—but advanced reactor developers and enrichment companies are still watching and waiting. In contrast, the uranium spot price soared after Sprott Physical Uranium Trust, a Canadian investment fund formed in July, began buying up U3O8 supplies, causing the price to increase over 60 percent, topping $50 per pound for the first time since 2012. Fueled by growing acknowledgment that nuclear power is a necessary part of a clean energy future, uranium is the focus of attention from Wall Street to Capitol Hill.


September 15, 2021, 3:42PMUpdated September 15, 2021, 3:43PMPress Releases

The United States Congress needs to take swift action to build a domestic supply of fuel for advanced reactors and to avoid future dependence on Russia for advanced nuclear fuel, the American Nuclear Society wrote in a Sept. 14 letter to the U.S. Senate Energy and Natural Resources Committee.

NRC's RIC: A clear line of sight for accident tolerant fuel deployment

March 12, 2021, 3:02PMNuclear News

To nuclear fuel suppliers, today’s operating reactors represent a defined customer base with predictable demands. Utilities must order their next fuel reload far in advance of an outage; enrichers and fabricators work to fill those orders. Adapting such a highly optimized supply chain to accommodate new products—fuels with new materials, claddings, and higher enrichments and burnups—will require alignment between all parties involved to meet the associated research, enrichment, manufacturing, regulatory, transportation, and operating experience needs.

That was the consensus during “Current Accident Tolerant Fuel Environment,” a technical session held on March 9 during the Nuclear Regulatory Commission's four-day Regulatory Information Conference (RIC, March 8-11). The session was chaired by NRC Chairman Christopher Hanson, who was taking part in his first RIC as a member of the commission.

Purdue team uses Argonne’s APS for 3D view of irradiated fuel

January 22, 2021, 9:32AMNuclear News

Image: Purdue University/Maria Okuniewski

A team of researchers led by Purdue University has used X-ray imaging conducted at Argonne National Laboratory’s Advanced Photon Source to obtain a three-dimensional view of the interior of an irradiated nuclear fuel sample. The use of synchrotron micro-computed tomography could lead to more accurate modeling of fuel behavior and more efficient nuclear fuel designs, according to the researchers.

Testing for Terrestrial Energy’s IMSR under way with research partners

November 19, 2020, 7:00AMNuclear News

Terrestrial Energy and the Nuclear Research and Consultancy Group (NRG) have started a graphite irradiation testing program at NRG’s Petten Research Centre’s High Flux Reactor (HFR), located in the Netherlands. According to Terrestrial Energy, which is based in Ontario, Canada, the work is part of broader program of confirmatory testing of components and systems for the company’s Integral Molten Salt Reactor (IMSR), designed to produce both electricity and industrial heat.

The testing program at NRG was planned to confirm the predicted performance of selected graphite grades throughout the seven-year cycle of an IMSR core. The testing was designed in cooperation with Frazer-Nash Consultancy, and will simulate IMSR core conditions at a range of operating temperatures and neutron flux conditions.

“Our work with NRG at its Petten HFR facility is an important element of our overall IMSR test program, now well underway. The start of in-core irradiation tests speaks to our progress and comes after many months of prior work,” Simon Irish, CEO of Terrestrial Energy, said on November 12. “The NRG work also reflects an important feature of our testing strategy. That is to engage existing laboratories offering existing capabilities rather than build those in-house, a strategy that is essential for our early deployment schedule.”