Westinghouse delivers advanced, plug-in-ready power supply solutions that eliminate obsolescence and keep nuclear plants running safely, reliably, and future-ready.

December 9, 2025, 12:01PMSponsored ContentWestinghouse Electric Company Parts Business

The Westinghouse Parts Business plays a vital role in maintaining the critical assets of customers and ensuring safety and reliability through high-quality spare parts, component repairs, and equipment upgrades. Obsolescence and sourcing qualified replacements remain major challenges in the nuclear industry. To address these, Westinghouse provides targeted solutions for obsolete parts and manages comprehensive obsolescence programs.

France’s Cigéo repository receives satisfactory safety review

December 9, 2025, 9:31AMRadwaste Solutions
Diagram of the Cigéo repository in France. (Image: Andra)

France’s Nuclear Safety and Radiation Protection Authority (ASNR) completed its technical review and issued a satisfactory opinion on Andra’s license application to construct the Cigéo deep geological disposal facility. Andra is the French national agency responsible for the safe management of all radioactive waste in the country.

Nieh sworn in to NRC

December 9, 2025, 7:04AMNuclear News

Nieh

The Nuclear Regulatory Commission is now back up to four commissioners. Following a 66–32 confirmation vote in the U.S. Senate last month, Ho Nieh was officially sworn in last week.

He fills the seat left vacant following the dismissal of Christopher Hanson and is set to serve through the remainder of a term that will expire June 30, 2029.

Quotable: “I am grateful for the opportunity to return to the NRC to work alongside such a competent and dedicated workforce," said Nieh, in the NRC’s press release announcing his being sworn in. "This agency shaped my career and my commitment to nuclear safety. It is an incredible honor to have been appointed by President Trump to serve on the Commission, and I look forward to serving alongside Chairman Wright, Commissioner Crowell, and Commissioner Marzano. I am energized by the opportunities the NRC has to enable the safe use of nuclear technologies for America during this pivotal period in its history.”

3D-printed tool at SRS makes quicker work of tank waste sampling

December 8, 2025, 3:11PMRadwaste Solutions
A 3D-printed tool (left) that retrieves samples from radioactive waste tanks at the Savannah River Site. Also pictured are 3D-printed crawler transport baskets used during the job. (Photo: DOE)

A 3D-printed tool has been developed at the Department of Energy’s Savannah River Site in South Carolina that can eliminate months from the job of radioactive tank waste sampling.

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Perpetual Atomics, QSA Global produce Am fuel for nuclear space power

December 8, 2025, 12:00PMNuclear News
RHUs arranged in a spacecraft structure cutaway. (Photo: Perpetual Atomics)

U.K.-based Perpetual Atomics and U.S.-based QSA Global claim to have achieved a major step forward in processing americium dioxide to fuel radioisotope power systems used in space missions. Using an industrially scalable process, the companies said they have turned americium into stable, large-scale ceramic pellets that can be directly integrated into sealed sources for radioisotope power systems, including radioisotope heater units (RHUs) and radioisotope thermoelectric generators (RTGs).

INL makes first fuel for Molten Chloride Reactor Experiment

December 8, 2025, 9:33AMNuclear News
Rendering of MCRE. (Image: INL)

Idaho National Laboratory has announced the creation of the first batch of enriched uranium chloride fuel salt for the Molten Chloride Reactor Experiment (MCRE). INL said that its fuel production team delivered the first fuel salt batch at the end of September, and it intends to produce four additional batches by March 2026. MCRE will require a total of 72–75 batches of fuel salt for the reactor to go critical.

Deep Fission to break ground this week

December 8, 2025, 6:58AMNuclear News
Image: Deep Fission

With about seven months left in the race to bring DOE-authorized test reactors on line by July 4, 2026, via the Reactor Pilot Program, Deep Fission has announced that it will break ground on its associated project on December 9 in Parsons, Kansas. It’s one of many companies in the program that has made significant headway in recent months.

Modernizing I&C for operations and maintenance, one phase at a time

December 5, 2025, 3:03PMNuclear News
A full-sized glass-top simulator recently installed in Surry’s training building. (Photo: Dominion)

The two reactors at Dominion Energy’s Surry plant are among the oldest in the U.S. nuclear fleet. Yet when the plant celebrated its 50th anniversary in 2023, staff could raise a toast to the future. Surry was one of the first plants to file a subsequent license renewal (SLR) application, and in May 2021, it became official: the plant was licensed to operate for a full 80 years, extending its reactors’ lifespans into 2052 and 2053.

INL announces five teams for MARVEL Project

December 5, 2025, 1:30PMNuclear News
Cutaway view of MARVEL and its subsystems. (Image:INL)

Idaho National Laboratory has selected five teams for its Microreactor Application Research Validation and Evaluation (MARVEL) Project to develop a sodium-potassium–cooled microreactor designed to test microreactor applications, create regulatory processes, and explore electrical and nonelectrical uses.

Report: Funding growth for private fusion companies

December 5, 2025, 12:02PMNuclear News

A new report from the F4E Fusion Observatory highlights the robust growth of investments in private companies that are developing fusion energy technologies. The report, Global Investment in the Private Fusion Sector, is an updated release of a previous F4E Fusion Observatory report, published “in response to the unprecedented acceleration of investments in fusion companies since June 2025, which are consolidating fusion as a fast-growing emerging market.”

Global funding: According to the report, the cumulative global funding in private fusion companies between June and September 2025 increased from €9.9 billion to €13 billion (about $11.6 billion to $15.17 billion). Funding for the private fusion sector in September was more than eight times greater than in 2020. The report also identifies 77 companies that are in the “fusion private ecosystem.”

Project delivers a universal waste canister for advanced reactors

December 4, 2025, 3:45PMRadwaste Solutions
Members of the UPWARDS technical advisory committee stand in front of a prototype universal canister system in 2024. (Photo: Deep Isolation)

Nuclear waste disposal technology company Deep Isolation Nuclear has announced the completion of a three-year project to manufacture, physically test, and validate a disposal-ready universal canister system (UCS) for spent nuclear fuel and high-level radioactive waste from advanced reactors.

Project Pele progress: BWXT delivers fuel to INL

December 4, 2025, 12:00PMNuclear News
INL operations staff members prepare to unload casks containing TRISO fuel that will power Project Pele. (Photo: DOE)

This week, BWX Technologies, alongside Idaho National Laboratory and the Department of Defense’s Strategic Capabilities Office, announced the arrival of a full core of TRISO fuel at INL’s Transient Reactor Test Facility.

Webinar: UMich’s The Reactor Around the Corner

December 4, 2025, 9:30AMANS Nuclear Cafe

The latest report from the University of Michigan Science, Technology, and Public Policy Program’s Technology Assessment Project (TAP) will be the focus of a webinar on December 11, from 12:00 noon to 1:00 p.m. (EST).

Sponsored by TAP in partnership with the university’s Fastest Path to Zero Initiative, the event will discuss findings in the report, The Reactor Around the Corner: Understanding Advanced Nuclear Energy Futures.

Participants can register for the webinar here.

Antares raises funds for microreactor development

December 4, 2025, 7:00AMNuclear News
Image: Antares

Advanced nuclear energy start-up Antares has announced the close of a $96 million Series B funding round, led by Shine Capital with participation from Alt Capital, Caffeinated, FiftyThree Stations, Industrious, and other investors. The round raised $71 million in new equity capital and $25 million in debt for equipment, factory build-out, and uranium procurement.

DOE selects TVA and Holtec for SMR awards

December 3, 2025, 3:00PMNuclear News
Image: DOE

The Department of Energy has selected the Tennessee Valley Authority and Holtec Government Services to support the early deployments of light water small modular reactors in the United States. The companies will each receive as much as $400 million in federal cost-shared funding to advance their initial SMR projects in Tennessee and Michigan, respectively, including follow-on projects and associated supply chains.

Four utilities form the Great Plains New Nuclear Consortium

December 3, 2025, 12:00PMNuclear News

Four public electric utilities—three based in Nebraska and one in Oklahoma—recently signed a memorandum of understanding to form the Great Plains New Nuclear Consortium. The first goal of that new consortium is to explore the feasibility of deploying 1–2 GW of new nuclear (potentially in the form of small modular reactors) within Nebraska.

NRC completes safety review for TerraPower’s Kemmerer project

December 3, 2025, 9:30AMNuclear News
A cutaway diagram of the Natrium reactor. (Source: TerraPower)

The Nuclear Regulatory Commission recently announced that it has completed its final safety evaluation (SE) for the construction permit application for Kemmerer Power Station Unit 1 in Kemmerer, Wyo. The application was submitted by TerraPower on behalf of its wholly owned subsidiary, US SFR Owner (USO).

Star Trek or Planet of the Apes?

December 3, 2025, 7:04AMNuclear NewsCraig Piercy

Craig Piercy
cpiercy@ans.org

These days, the ship of civil nuclear technology we are all aboard is sailing through a turbulent passage. The winds and currents are favorable, but there are swells ahead: steep energy-­demand projections, buoyant equity valuations, splashy announcements, a generational realignment of nuclear policies and institutional norms.

Part of the reason we chose “Building the Nuclear Century” as the theme for this year’s Winter Conference was to put some ballast in the hull of the nuclear conversation.

Advanced nuclear fission and fusion energy development are accelerating, both here and around the world. And yet, at least in the U.S., we are still years away from connecting commercial Gen IV systems to our grid.

In a world growing increasingly impatient, how do we stay on task and deliver? There are three ingredients to success.