Nuclear News

At Idaho National Laboratory, researchers have built a bridge between computer models and the lab’s Microreactor Applications Research Validation and Evaluation (MARVEL) microreactor.

Tony Crawford, an INL researcher and MARVEL’s reactivity control system lead, designed a phone booth–sized surrogate nuclear reactor called ViBRANT, or Visual Benign Reactor as Analog for Nuclear Testing, which uses light instead of neutrons to show a “nuclear” reaction.

Two start-ups working to commercialize fusion energy made headlines last week. Helion Energy announced that its Polaris prototype fusion energy machine recently demonstrated measurable deuterium-tritium fusion and achieved a plasma temperature of 150 million degrees Celsius (MºC). Newcomer Inertia Enterprises announced that it has raised $450 million in its Series A fundraising round.

Valar Atomics’ Ward250 microreactor is loaded onto the aircraft.

A public-private partnership between the Departments of Defense and Energy and Valar Atomics marked a milestone over the weekend when Valar’s Ward250 microreactor was transported (without fuel) from California to Utah using three C-17 aircraft. The reactor will now trek from Hill Air Force Base to the Utah San Rafael Energy Lab (URSEL) for testing and evaluation.

The Nuclear Scaling Initiative, a collaborative effort launched in 2024 to spur new nuclear energy development, announced a new campaign promoting the direct disposal of spent nuclear fuel as the safest, most secure, and least expensive pathway for managing U.S. nuclear waste.

The Nuclear Regulatory Commission has granted X-energy subsidiary TRISO-X a special nuclear material license for high-assay low-enriched uranium fuel fabrication. The license applies to TRISO-X’s first two planned commercial facilities, known as TX-1 and TX-2, for an initial 40-year period. The facilities are set to be the first new nuclear fuel fabrication plants licensed by the NRC in more than 50 years.

Ontario Power Generation has signed a partnership agreement with the city of Port Hope focused on bringing “large-scale new nuclear generation” to the utility’s Wesleyville location, a 1,300-acre site on the shores of Lake Ontario that has been left undeveloped for four decades. The Ontario government believes that this site has the potential to generate as much as 10 GW of electricity and become “the world’s largest nuclear station,” in the words of Stephen Lecce, the province’s minister of energy and mines.

The state of New Mexico is fining the Department of Energy for nearly $16 million, claiming the department has failed to prioritize the removal legacy nuclear waste from Los Alamos National Laboratory for disposal at the Waste Isolation Pilot Plant, the DOE’s deep geologic repository for defense-related transuranic waste near Carlsbad, N.M.

As the energy sector faces mounting pressure to grow at an unprecedented pace while maintaining reliability and affordability, nuclear technology remains an essential component of the long-­term solution. Southern Company stands out among U.S. utilities for its proactive role in shaping these next-­generation systems—not just as a future customer, but as a hands-­on innovator.

The Department of Energy’s newly published Genesis Mission National Science and Technology Challenges describes 26 challenges and corresponding AI solutions designed to advance the artificial intelligence–focused Genesis Mission, which was established by presidential executive order last November to develop an “integrated platform that connects the world’s supercomputers, experimental facilities, AI systems, and unique datasets across every major scientific domain to double the productivity and impact of American research and innovation within a decade.”

Senators Ben Ray Luján (D., N.M.) and Tim Scott (R., S.C.) have reintroduced legislation aimed at leveraging the best available science and technology at U.S. national laboratories to support the cleanup of legacy nuclear waste.

The Combining Laboratory Expertise to Accelerate Novel Solutions for Minimizing Accumulated Radioactive Toxins (CLEAN SMART) Act, introduced on February 11, would authorize up to $58 million annually to develop, demonstrate, and deploy innovative technologies, targeting reduced costs and safer, faster remediation of sites from the Manhattan Project and Cold War.

Mirion Technologies has announced three senior leadership appointments designed to support its global nuclear and medical businesses while advancing a company-wide digital and AI strategy. The leadership changes come as Mirion seeks to advance innovation and maintain strong performance in nuclear energy, radiation safety, and medical applications.

The HALEU cascade at the American Centrifuge Plant in Piketon, Ohio. (Photo: Centrus Energy)

American Centrifuge Operating, a subsidiary of Centrus Energy Corp., has formed a multiyear strategic collaboration with Fluor Corporation in which Fluor will serve as the engineering, procurement, and construction (EPC) contractor for Centrus’s expansion of its uranium enrichment facility in Piketon, Ohio. Fluor will lead the engineering and design aspects of the American Centrifuge Plant’s expansion, manage the supply chain and procurement of key materials and services, oversee construction at the site, and support the commissioning of new capacity.

Nuclear technology start-up Project Omega announced on February 11 that it has emerged from stealth mode with hopes of processing and recycling spent nuclear fuel into “long-duration, high-density power sources and critical materials for the nuclear industry.”

The Department of Energy’s Office of Environmental Management said crews at the Hanford Site near Richland, Wash., have started retrieving radioactive waste from Tank A-106, a 1-million-gallon underground storage tank built in the 1950s.

Tank A-106 will be the 24th single-shell tank that crews have cleaned out at Hanford, which is home to 177 underground waste storage tanks: 149 single-shell tanks and 28 double-shell tanks. Ranging from 55,000 gallons to more than 1 million gallons in capacity, the tanks hold around 56 million gallons of chemical and radioactive waste resulting from plutonium production at the site.

Sens. Jim Risch (R., Idaho) and Ruben Gallego (D., Ariz.) reintroduced the Accelerating Reliable Capacity (ARC) Act in the Senate on February 10.

According to the Department of Energy, it could take up to 10 deployments for a reactor design to become a mature commercial reactor. Getting from the first-of-a-kind (FOAK) to full commercial deployment is challenging, and the risks of higher costs and longer deployment timelines for early nuclear projects create significant uncertainty for investors. The ARC Act is designed to reduce that early deployment risk.

Vice President J.D. Vance and Armenian Prime Minister Nikol Pashinyan at the signing of the 123 Agreement. (Photo: Office of the Prime Minister of the Republic of Armenia)

During his visit to Armenia on February 9, Vice President J.D. Vance signed an agreement with Armenian Prime Minister Nikol Pashinyan for cooperation in the civil nuclear energy sector. The “Agreement on Cooperation between the Government of the Republic of Armenia and the Government of the United States of America in the Field of Peaceful Use of Nuclear Energy” will reportedly open the door to $5 billion in initial U.S. nuclear-related exports to Armenia, in addition to $4 billion worth of longer-term fuel and maintenance contracts.

Charlotte, N.C.–based Geenex, a developer of utility-scale solar power and battery storage within the PJM Interconnection, announced on Tuesday that it is expanding into nuclear energy development, focusing on the siting and permitting of advanced small modular reactors.

An opportunity to request an adjudicatory hearing for Duke Energy Carolinas’ early site permit (ESP) application for the Belews Creek site in Stokes County, N.C., has been announced by the Nuclear Regulatory Commission. The notice of the opportunity was published February 9 in the Federal Register. The deadline to file a request for a hearing or petition for leave to intervene is April 10, 2026.

Hash Hashemian
president@ans.org

When talking about growth in the nuclear sector, there can be a somewhat myopic focus on increasing capacity from year to year. Certainly, we all feel a degree of excitement when new projects are announced, and such announcements are undoubtedly a reflection of growth in the field, but it’s important to keep in mind that growth in nuclear has many metrics and takes many forms.

Nuclear growth—beyond megawatts—also takes the form of increasing international engagement. That engagement looks like newcomer countries building their nuclear sectors for the first time. It also looks like countries with established nuclear sectors deepening their connections and collaborations. This is one of the reasons I have been focused throughout my presidency on bringing more international members and organizations into the fold of the American Nuclear Society.

The Department of Energy has restarted uranium recovery operations at the Savannah River Site’s H Canyon facility in South Carolina, a move officials say directly supports last year’s executive orders to reinvigorate the nation’s nuclear industrial base and enable the deployment of advanced reactor technologies. The work will include recovering uranium and other scarce isotopes from used nuclear fuel while advancing long-term cleanup goals at the site.