Designs for high-tech products, and the start-ups that offer them, will always outnumber the commercial successes. Ditto: many more power plants are proposed than actually get built, no matter what the technology.

This is an axiom of free-market economies, but in early November 2023 it became painfully obvious in the advanced reactor field. NuScale Power, the only advanced reactor that has made it through the licensing gauntlet, acknowledged that the consortium of utilities that was its intended launch customer had failed to put together a feasible package.

The United Kingdom’s Department for Energy Security and Net Zero announced plans on January 7 to invest £300 million (about $383 million) to build a high-assay low-enriched uranium (HALEU) enrichment facility in northwest England. The goal? To “end Russia’s reign as the only commercial producer of HALEU.” Britain is now the first European country to declare that it will begin HALEU enrichment in a bid for supply chain security.

The United Kingdom released plans yesterday for the biggest expansion of nuclear power in 70 years. Officials outlined Civil Nuclear: Roadmap to 2050 as an opportunity to improve the United Kingdom’s energy independence from foreign sources as it looks to build a new power station and invest in advanced nuclear fuel production.

The Department of Energy issued a final request for proposals (RFP) on January 9 for uranium enrichment services to help establish a commercial domestic supply of high-assay low-enriched uranium (HALEU) to fuel a potential fleet of advanced reactors. Without HALEU, advanced reactors will not be able to proceed past the demonstration stage. And given the investments of capital and time required to license and build a nuclear power plant—even a smaller, more efficient advanced reactor—eliminating fuel uncertainty could be what a utility needs to invest in new construction.

A recent event co-organized by the Nuclear Energy Agency, the Electric Power Research Institute, and Holtec International brought together about 100 international experts for a workshop on spent fuel and radioactive waste.

Here is a recap of industry happenings from the recent past:

ADVANCED REACTOR MARKETPLACE

DOE, DOD support X-energy’s microreactor work

The Department of Energy’s Office of Nuclear Energy has signed a one-year cooperative agreement with X-energy designed to advance the development of a design for a transportable mobile microreactor. Under the agreement, the DOE will support X-energy’s work on the architecture and technology for the 3- to-5-MWe microreactor’s preliminary design. X-energy is also the recipient of a Department of Defense contract to develop an enhanced engineering design for a transportable microreactor that will be suitable for both defense and commercial applications.

The Advanced Reactor Codes and Standards Collaborative (ARCSC) held its second workshop on November 30, 2023, in Washington, D.C. The hybrid event had just over 200 participants, including representatives from standards development organizations (SDOs), the Electric Power Research Institute, the Nuclear Energy Institute, national laboratories, government agencies, vendors, advanced reactor designers, and consultants as well as representatives from other U.S. industry and international organizations, including the International Atomic Energy Agency. ANS Standards Board chair Andrew Sowder, senior technical executive at EPRI, welcomed attendees to EPRI’s offices, where the workshop was held.

Two teams of guest editors from Idaho National Laboratory have announced plans for special issues of the American Nuclear Society's Nuclear Science and Engineering, the nuclear community’s longest-running technical journal. Abdalla Abou Jaoude and Abderrafi M. Ougouag are leading the NSE issue Technical Challenges and Opportunities in the Development and Deployment of Microreactors, while Joseph Nielsen and Piyush Sabharwall are organizing the NSE issue Irradiation Experiments Supporting Advanced Nuclear Technologies.

Hussein Khalil

Within the next decade, it is expected that the first round of advanced reactor (AR) demonstration units will be successfully started up and operated, with additional industry-led nuclear energy initiatives progressing toward demonstration. These AR prototypes will be first-of-a-kind systems incorporating significant technological advances. Attracting the required investment for construction and operation will require persistent efforts to improve performance, reduce costs, attract an investor/-customer base, and establish the supply chain and workforce needed to meet this emerging demand.

Public-private partnerships focused on technology and design advancements will likely be needed through at least 2050. These partnerships will require the research community—and the national labs in particular—to play a key role in developing technical solutions for economically competitive systems and helping address other challenges to sustained and expanded use of nuclear energy. These challenges include managing used nuclear fuel, minimizing nuclear security and proliferation risks, and pursuing international markets.

Plans announced with fanfare sometimes falter in the face of competition or economics. Take NuScale Power’s plans for the Carbon Free Power Project in Idaho: The project was canceled in mid-November by NuScale and its first customer, Utah Associated Municipal Power Systems, after nearly a decade. The significance of that news depends on the observer. NuScale intends to focus on other sites and customers. Competitors may redouble efforts to tout their own designs and customer lists. Media found an opportunity to speculate about the future of advanced nuclear. And while many in the nuclear community believe the momentum in favor of new nuclear deployments is continuing—or even increasing as COP28 continues—others would caution against high hopes and point to the persistent obstacles of regulation, supply chain constraints, and financing costs.

TerraPower and Uranium Energy announced today that they have signed a memorandum of understanding to “explore the potential supply of uranium” for TerraPower’s demonstration reactor in Kemmerer, Wyo.

Framatome Inc. and Ultra Safe Nuclear Corp. (USNC) signed an agreement on November 28 at the World Nuclear Exhibition in Paris, France, establishing a joint venture to manufacture nuclear fuel for USNC’s gas-cooled microreactor and other advanced reactor designs. Working together, the companies plan to produce commercial quantities of TRISO fuel particles and USNC’s proprietary Fully Ceramic Microencapsulated (FCM) fuel, which contains TRISO fuel particles within a ceramic fuel pellet.

The Department of Energy plans to award one or more contracts to deconvert high-assay low-enriched uranium (HALEU) from its post-enrichment gaseous uranium hexafluoride (UF₆) state to other chemical forms, such as metal or oxide. The DOE’s final request for proposals (RFP) for deconversion services was issued November 28 as one part of the agency’s effort—under the HALEU Availability Program—to establish a reliable domestic supply of advanced reactor fuel. The DOE will store the deconverted material until it is required by a fuel fabricator or other end user.

Researchers at Idaho National Laboratory in early 2023 manufactured commercial-grade high-assay low-enriched uranium (HALEU) fuel pellets to the specifications of a General Electric accident tolerant fuel design, INL announced November 21. A team working at INL’s Experimental Fuels Facility at the Material and Fuels Complex fabricated about two dozen uranium dioxide pellets using HALEU enriched up to 15 percent U-235.

In October, staff at Kairos Power’s testing and manufacturing facility in Albuquerque, N. M., began transferring 14 tons of molten fluoride salt coolant into an Engineering Test Unit (ETU)—the largest transfer of FLiBe (a mixture of lithium fluoride and beryllium fluoride) since the Molten Salt Reactor Experiment in 1969.

Richard A. Meserve

Climate change presents a grave threat, demanding increasing reliance on low-carbon energy over the coming decades. Nuclear power today contributes half of U.S. low-carbon generation, and achievement of climate goals requires the continued operation of existing plants. But there are competitors for low-carbon energy, and nuclear’s further role remains uncertain. The National Academies of Sciences, Engineering, and Medicine (NASEM) conducted a study to explore the challenges that must be overcome for widespread new nuclear deployment.¹ This article provides my summary of the study, highlighting and abbreviating some of its principal recommendations. Note that the italicized portions of the article are shortened versions of the recommendations in the report.

The Nuclear Regulatory Commission’s Office of Nuclear Regulatory Research is hosting two workshops on reactor topics before the end of the year.

The Nuclear Energy Agency has announced a new collaboration with the Electric Power Research Institute on an upcoming project that will focus on waste management strategies for small modular reactors and advanced nuclear energy systems.

Just a few hours after a new Speaker of the House of Representatives was elected on October 25, the White House sent a list of funding priorities for “critical domestic needs” to Congress for consideration as legislators restart the stalled annual appropriations process. Those priorities include $2.2 billion for low-enriched uranium (LEU) and high-assay low-enriched uranium (HALEU) enrichment capabilities. And to ensure that investment in domestic HALEU enrichment pays off, the White House is also calling for a long-term ban on enriched uranium from Russia.

The Department of Energy’s National Reactor Innovation Center (NRIC) awarded $3.9 million to three advanced nuclear energy developers on October 23 to design experiments to test microreactor designs in the Demonstration of Microreactor Experiments (DOME) test bed at Idaho National Laboratory.