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.

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.

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.

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.

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.”

The spot price of uranium at the end of November declined to $75.80 per pound, down from $80.00/lb at the end of October, according to uranium company Cameco. The high-water mark this year was in September, at $82.63/lb. The lowest price of 2025 was at the end of March, at $64.23/lb.

Candidates have officially been named to fill six ANS leadership positions with terms beginning in June 2026. Candidates for the one-year term as vice president/president-elect will succeed Mark Peters, who will in turn succeed Hash Hashemian as current ANS president.

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.

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.

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.

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.

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 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.

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).

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.

Power generation has many factors and key indicators to identify the “health” of a plant. Some macro-level indicators are vital to help identify challenges before they become problems; others are less sensitive yet just as important. Micro indicators such as condenser return temps or changes in pump pressures can be critical indicators of a problem that few understand, yet which results in enormous loss of efficiency. That problem is deposits on critical system tubing and piping caused by calcium carbonate or other mineral buildups. The bottom line? Scaling is a significant issue in power plants that can considerably impact efficiency and profitability.

The sixth annual World Nuclear Energy Day is being celebrated today following its inception in 2020. In recognition, here is a throwback to an Atomic Energy Commission cartoon from the early days of nuclear power:

Hash Hashemian
president@ans.org

At the time of this writing, it is only a few days before the American Nuclear Society’s 2025 Winter Conference & Expo in Washington, D.C., which is set to be an unmissable gathering of key nuclear leaders from across the United States and the world. Over the past three weeks, I have been working doggedly to obtain nearly $500,000 in sponsorships and recruit speakers for the conference.

I am thankful for the many generous donors—such as the Tennessee Valley Authority and Constellation—who continue to enable ANS to serve its members, in part by putting on the best conferences we possibly can.

I conducted much of my fundraising and recruitment while I was traveling to represent ANS at various universities, laboratories, and conferences. As I’ve mentioned before, I am focused on developing criteria around where ANS presidents travel to ensure that our resources are spent wisely; I am working with ANS past president Gail Marcus (2001–2002) to develop those criteria now, and in the meantime, I have been judicious in deciding which invitations to accept.

The Department of Energy recently announced that General Atomics has successfully completed the conceptual design of its new helium gas–cooled fast modular reactor (FMR). This milestone moves the company one step closer to a target demonstration in the 2030s.

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.