Industry Update—December 2025

December 1, 2025, 2:58PMNuclear News

Here is a recap of recent industry happenings:

ADVANCED REACTOR MARKETPLACE

Agreement signed on advanced nuclear technology in space

Texas-based space technology and orbital logistics developer Space Ocean Corporation and New Mexico–­based space nuclear power systems developer Space Nuclear Power Corporation (SpaceNukes) have signed a letter of intent to explore the integration of advanced nuclear reactor technology into future space missions. Space Ocean agreed to test SpaceNukes’ 10-kilowatt microreactor aboard its ALV-N satellite and, if performance criteria are met, to use SpaceNukes as a core supplier of reactors for future Space Ocean lunar and planetary missions. The companies also agreed to examine the integration of fluid delivery systems with reactor modules, to collect operational data to support technology readiness certification, and to form a joint working group to pursue additional space infrastructure and commercial opportunities.

Oak Ridge worker’s insight leads to $16M in demolition project savings

December 1, 2025, 12:01PMRadwaste Solutions
Workers sort through legacy items inside the Alpha-4 building to prepare for the facility’s deactivation at Oak Ridge’s Y-12 National Security Complex. (Photo: DOE)

The Department of Energy’s Office of Environmental Management said it was insight and a questioning attitude from a project manager that led the Oak Ridge Office of Environmental Management (OREM) to accelerate the demolition of the Alpha-4 building at Oak Ridge’s Y-12 National Security Complex, helping avoid millions of dollars in costs to taxpayers.

ANS hosts webinar on uranium mill tailing facilities

December 1, 2025, 7:02AMANS News
An example cutaway of a disposal facility similar to Monticello. (Photo: Craig Benson)

The American Nuclear Society’s Risk-informed, Performance-based Principles and Policy Committee (RP3C) has held another presentation in its monthly Community of Practice (CoP) series. Former RP3C chair N. Prasad Kadambi opened the meeting with brief introductory remarks about the RP3C and the need for new approaches to nuclear design that go beyond conventional and deterministic methods. He then welcomed this month’s speaker: Craig Benson from the University of Wisconsin–Madison, who presented “Natural Systems Approach for Closure of Uranium Mill Tailing Facilities.”

Education and training to support Canadian nuclear workforce development

November 26, 2025, 3:05PMNuclear NewsMarkus Piro and Allan Lew

Along with several other nations, Canada has committed to net-zero emissions by 2050. Part of this plan is tripling nuclear generating capacity. As of 2025, the country has four operating nuclear generating stations with a total of 17 reactors, 16 of which are in the province of Ontario. The Independent Electricity System Operator has recommended that an additional 17,800 MWe of nuclear power be added to Ontario’s grid.

White House to consolidate data and research under AI-driven Genesis Mission

November 26, 2025, 9:49AMNuclear News

One of the executive orders issued by President Trump in November —“Launching the Genesis Mission”—focuses on a national effort to accelerate the use of AI in scientific research. The Genesis Mission EO preceded a reorganization of the Department of Energy and further tightens links between science and security under the administration’s quest for “global technology dominance in the development of artificial intelligence.”

X-energy raises $700M in latest funding round

November 25, 2025, 3:01PMNuclear News

Advanced reactor developer X-energy has announced that it has closed an oversubscribed Series D financing round of approximately $700 million. The funding proceeds are expected to be used to help continue the expansion of its supply chain and the commercial pipeline for its Xe-100 advanced small modular reactor and TRISO-X fuel, according the company.

My story: Abraham Weitzberg, ANS member since 1962

November 25, 2025, 9:31AMANS NewsAbraham Weitzberg

. . . and today.

Weitzberg then. . .

My first exposure to nuclear engineering was in 1956–57 when I was a fourth-­year chemical engineering undergraduate at MIT. The previous summer, I worked at an oil refinery in New Jersey and our class visited a Monsanto sulfuric acid factory in Boston Harbor. I lost my enthusiasm for chemical engineering and decided to take a couple of introductory nuclear engineering courses as a senior. After a summer job at Y-­12 in Oak Ridge, I started on a nuclear engineering master’s degree program. (An Atomic Energy Commission fellowship certainly helped my decision.)

The following summer, I performed reactor physics experiments at Brookhaven with Herb Kouts, Joe Hendrie, Rudy Sher, and Henry Windsor. In January 1962, after defending my Ph.D. dissertation on measuring uranium-­238 capture in lattices of uranium rods in heavy water, I headed to Los Angeles to work on SNAP reactors for Atomics International. There, I performed critical experiments and managed their aerospace safety program.

Japan set to restart Kashiwazaki-Kariwa

November 25, 2025, 7:00AMNuclear News
Kashiwazaki-Kariwa nuclear power plant (Credit: Tepco)

Hideyo Hanazumi, governor of Niigata Prefecture in Japan, has approved the restart of two reactors at Kashiwazaki-Kariwa nuclear power plant. The seven-unit facility, operated by Tokyo Electric Power Company, is the largest nuclear power plant in the world. It has been shut down since the March 2011 earthquake and tsunami struck the country, severely damaging TEPCO’s Fukushima Daiichi plant.

Coming up: The 4th annual ARCSC workshop

November 24, 2025, 12:01PMANS News

The 4th Annual Advanced Reactor Codes and Standards Collaborative (ARCSC) Workshop will take place on December 4 from 9:00 a.m. to 5:00 p.m. (EST). The event, which will be hosted at the Electric Power Research Institute’s office Washington, D.C., has a hybrid format, offering the opportunity for both in-person and virtual attendance. It’s focus is on sharing the ARCSC’s progress on developing codes and standards to support advanced reactor development and will also feature industry-focused breakout discussions, conversations with industry leaders, and more.

Click here to register for the workshop.

ANS webinar looks to the nuclear future of South Carolina

November 24, 2025, 9:31AMANS News

A recent webinar hosted by the American Nuclear Society featured leading experts in South Carolina’s nuclear sector, who discussed how the state will leverage its resources, history, and experience to become a frontrunner in new development. Hosted by ANS Executive Director/CEO Craig Piercy, it offered perspectives from the utility, commercial, and academic worlds.

Go deeper: To hear more from each panelist on the nuclear present and future of South Carolina, watch the full webinar here.

NRC receives construction application for isotope production reactor

November 24, 2025, 7:00AMNuclear News
Image: Atomic Alchemy

The Nuclear Regulatory Commission announced that it has received the first portion of a construction permit application from Oklo subsidiary Atomic Alchemy that requests permission to build four nonpower reactors for a radioisotope production facility at Idaho National Laboratory. The submission is now available for public inspection on the NRC website.

Nuclear power’s new rule book: Managing uncertainty in efficiency, safety, and independence

November 21, 2025, 12:02PMNuclear NewsGeorge Joslin, Arden Rowell, Ha Bui, Justin Valentino, Ziwei Che, Seyed Reihani, and Zahra Mohaghegh

The U.S. nuclear industry is standing at its most volatile regulatory moment yet—one that will shape the trajectory and the safety of the industry for decades to come. Recent judicial, legislative, and executive actions are rewriting the rules governing the licensing and regulation of nuclear power reactors. Although these changes are intended to promote and accelerate the deployment of new nuclear energy technologies, the collision of multiple legal shifts—occurring simultaneously and intersecting with profound technological uncertainties—is overwhelming the Nuclear Regulatory Commission and threatening to destabilize investor and industry expectations.

U.S. and Saudi Arabia reach deal on nuclear energy cooperation

November 21, 2025, 12:01PMNuclear News

As President Trump hosted Saudi Crown Prince Mohammed bin Salman at the White House on November 19, Energy Secretary Chris Wright confirmed that the United States and Saudi Arabia have signed a “historic” deal on cooperation in the civilian nuclear energy sector. The Joint Declaration on the Completion of Negotiations on Civil Nuclear Cooperation is seen as an important part to strengthen U.S. influence in the Gulf region to counter the influence of Iran, Russia, and China.

Demolition begins on Portsmouth’s largest processing building

November 21, 2025, 9:30AMRadwaste Solutions
Portsmouth Site workers have taken the “first bite” of the massive X-333 Process Building, signaling the start of demolition of the massive gaseous diffusion plant building. (Photo: DOE)

Workers have begun demolishing the massive X-333 Process Building at the Portsmouth Site in Ohio, the Department of Energy’s Office of Environmental Management announced. The largest of three former uranium enrichment process buildings at Portsmouth, the X-333 building is the second of the three buildings to be demolished at the site and is a priority for DOE-EM.

DOE-NE opens comments on new fuel consortium agreements

November 21, 2025, 8:06AMNuclear News

The Department of Energy’s Office of Nuclear Energy is requesting comments on a draft voluntary agreement for the Nuclear Fuel Cycle Defense Production Act (DPA) Consortium, with a short deadline of November 24 for comments.

Notice of the request for comments, along with the text of the draft voluntary agreement, was published in the November 17 Federal Register.