The Department of Defense’s Strategic Capabilities Office (SCO) on April 13 released a record of decision (ROD) for Project Pele, a program intended to design and build a mobile microreactor at Idaho National Laboratory. The ROD for Project Pele is based on a final environmental impact statement (EIS) published in February. The designs submitted by the two candidate vendors—BWXT Advanced Technologies and X-energy—both fit the parameters analyzed in the final EIS.

The Department of Energy has determined that the sale, lease, or transfer of up to 750 kilograms of high-assay low-enriched uranium (HALEU) per calendar year to support the production of molybdenum-99 will not have an adverse material impact on the domestic uranium mining, conversion, or enrichment industry.

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.

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.

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.

The Senate Energy and Natural Resources Committee met yesterday to consider the nomination of Kathryn Huff to head the Department of Energy’s Office of Nuclear Energy (NE). President Biden selected Huff to fill the top spot at NE in January.

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.

ANS is hosting an expert panel for the members-only virtual event, “High-Assay Low-Enriched Uranium: Fueling Nuclear Energy’s Future,” on Friday, March 11, from 10 to 11 a.m. (EST).

Register now for the event. Can't attend live? Register to receive a link to the recording.

The U.S. Department of Defense (DOD) is looking to reduce its reliance on local electric grids and diesel-fueled generators at military installations. Project Pele is designed to demonstrate the technical and safety features of mobile microreactors capable of generating up to 5 MWe.

The American Nuclear Society is urging the Department of Energy to accelerate the development of an availability program for high-assay low-enriched uranium (HALEU).

In a letter sent to the DOE earlier this week, ANS President Steven Nesbit and Executive Director and Chief Executive Officer Craig Piercy state that HALEU availability is critical to the continued development of advanced nuclear technologies.

Regalbuto

High-assay low-enriched uranium (HALEU) is the power-dense feedstock of choice for a slew of advanced reactor designs. There’s just one problem: It isn’t available . . . yet. Downblending high-­enriched uranium owned by the Department of Energy to between 5 and 19.75 percent fissile U-235 is a stopgap measure at best, and no U.S. facility can yet produce commercial quantities of uranium above the 5 percent U-235 limit for low-enriched uranium.

The problem is one not of technology, but of economics: Enrichment companies want to see clear market signals that advanced reactors will be deployed in quantity, leading to long-term purchase agreements that will justify investments made today.

ANS Fellow Monica Regalbuto is director of Nuclear Fuel Cycle Strategy at Idaho National Laboratory, tasked with leveraging her more than 30 years of fuel cycle experience to ensure an adequate domestic supply of HALEU. She was invited to speak about her work during the opening plenary session of the 2021 ANS Winter Meeting.

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.

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 regulations.gov or by email to rfi-haleu@hq.doe.gov in a Microsoft Word or a PDF file. See the full request for information published in the Federal Register for additional information.

Nuclear thermal propulsion (NTP) is one technology that could propel a spacecraft to Mars and back, using thermal energy from a reactor to heat an onboard hydrogen propellant. While NTP is not a new concept, fuels and reactor concepts that can withstand the extremely high temperatures and corrosive conditions experienced in the engine during spaceflight are being designed now.

BWX Technologies announced on December 13 that it has delivered coated reactor fuels to NASA for testing in support of the Space Technology Mission Directorate’s NTP project. BWXT is developing two fuel forms that could support a reactor ground demonstration by the late 2020s, as well as a third, more advanced and energy-dense fuel for potential future evaluation. BWXT has produced a videoof workers processing fuel kernels in a glovebox.

Mignogna

The world faces an urgent need to decarbonize and expand clean energy systems. Earlier this year, the United States announced goals to achieve a 100 percent clean electricity grid by 2035 and net-zero emissions across the entire economy by 2050. Today, nuclear energy plants provide more than 50 percent of the United States’ carbon-free energy. Existing plants, along with the advanced technologies currently being developed and demonstrated, are crucial to the United States’ and the world’s clean energy future.

Technologies such as advanced non-light water reactors, which have higher operating temperatures than today’s light water reactors, will be vital to meeting economy-wide decarbonization goals. For example, process heat applications and chemical and synthetic fuel production require higher temperatures and currently rely on fossil fuels. Advanced reactors are the only carbon-free technologies that can provide the high temperatures these processes need.

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 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.

As Congress awaited key votes yesterday on spending bills that include production tax credits for at-risk plants and a new amendment adding $500 million in supplemental funding over five years to increase the availability of high-assay low-enriched uranium (HALEU), the U.S. Senate Energy and Natural Resources Committee held a Full Committee Hearing On Potential Non-Electric Applications Of Civilian Nuclear Energy. Sen. Joe Manchin (D., W.V.), chairman of the committee, emphasized that “advanced nuclear reactors hold enormous potential to provide opportunity to communities across the country with zero-emission baseload power” and made it clear he expects new reactors to replace retiring coal plants in his home state of West Virginia.

Speaking before the committee were Shannon Bragg-Sitton of Idaho National Laboratory, Paul Chodak III of American Electric Power, and Michael J. Guastella of the Council of Radionuclides and Radiopharmaceuticals.

X-energy and Centrus Energy Corporation yesterday announced the completion of the preliminary design for X-energy’s TRISO-X Fuel Fabrication Facility, plus the signing of a contract for Centrus to continue its work as the project enters its next phase.