Hawthorne, Calif.–based reactor start-up Valar Atomics recently announced that it has raised $130 million in its Series A funding round, led by venture capital groups Snowpoint, Day One, and Dream.

The U.S. Supreme Court may once again scrutinize the Nuclear Regulatory Commission’s authority to license consolidated interim storage facilities for commercial spent nuclear fuel. The antinuclear group Beyond Nuclear has filed a petition with the court for a writ of certiorari review of an August 2024 appeals court decision rejecting the group’s lawsuit against the licensing of Holtec International’s New Mexico storage facility, the HI-STORE CISF.

Advanced reactor and fuel developer X-energy has officially begun confirmatory irradiation testing at Idaho National Laboratory on its TRISO-X fuel. The testing, which is taking place over the course of the next 13 months, will evaluate the fuel across a variety of operating scenarios and—if all goes according to plan—will be instrumental in qualifying it for commercial use.

At the American Nuclear Society’s Winter Conference & Expo, leaders of advanced reactor start-ups Radiant Industries, Oklo, and Valar Atomics praised the Department of Energy’s Reactor Pilot Program, in which the companies are participating. The program aims to get at least three reactors on line by July 4, 2026.

During speeches at the American Nuclear Society’s Winter Conference & Expo, happening this week in Washington, D.C., Energy Secretary Chris Wright and Nuclear Regulatory Commission Chair David Wright both promised that the Trump administration will speed up nuclear reviews so the U.S. can maintain leadership in nuclear energy.

The DOE’s Wright took a stab at the NRC’s traditionally slow bureaucratic processes in approving primarily large light water reactors in the past, saying that the agency needs to speed up to meet the greater demand for new small modular reactors.

The Trump White House has nominated seasoned nuclear regulatory expert Douglas Weaver for a commissioner seat on the Nuclear Regulatory Commission. If confirmed, Weaver would fill the seat vacated by NRC commissioner Annie Caputo, who resigned in July.

Weaver’s nomination was sent earlier today to the Senate Environment and Public Works Committee. If confirmed, he would finish the remainder of Caputo’s term, which expires June 30, 2026.

The Nuclear Regulatory Commission and the Department of Energy have updated a 2019 memorandum of understanding to coordinate on the review of advanced nuclear reactors and advanced reactor fuel technologies.

The Nuclear Regulatory Commission has announced it is canceling an upcoming advanced reactor stakeholder meeting, originally scheduled for November 19, due to the government shutdown and the limitations on staffing at the agency.

In less than two weeks, the American Nuclear Society’s second annual conference of the year, the 2025 ANS Winter Conference & Expo, will come to Washington, D.C.

Today, ANS is announcing that Energy Secretary Chris Wright will be joining the list of nuclear leaders slated to speak at the conference.

Click here to register for the meeting, which will take place November 9–12 in Washington, D.C., at the Washington Hilton. Be sure to do so before November 7 to take advantage of priority pricing.

Nieh

Ho Nieh, the Trump administration’s nominee to be a member of the Nuclear Regulatory Commission, and four new board members of the Tennessee Valley Authority were approved in a vote today by the Senate Environment and Public Works Committee and head to the Senate floor for a final vote.

The committee also voted to advance to the Senate floor the Nuclear REFUEL Act of 2025 (S. 2082), which would smooth the regulatory pathway for recycling used nuclear fuel.

President Donald nominated Nieh on July 30 to serve as NRC commissioner for the remainder of a term set to expire June 30, 2029, which was held by former NRC commissioner Chris Hanson, who Trump fired in June.

The board of directors of South Carolina’s state-owned utility Santee Cooper voted today to approve the proposal from Brookfield Asset Management to complete two new AP1000 power reactors at the V.C. Summer site in Jenkinsville, S.C.

TerraPower announced that the final environmental impact statement for its Natrium small modular reactor has been completed by the Nuclear Regulatory Commission.

A year ago this month, Amazon led a $500 million investment in X-energy, alongside Citadel founder Ken Griffin, the University of Michigan, and other investors. In addition to that financing, Amazon pledged to support the development of an initial four-unit, 320-MW project with Energy Northwest in Washington state.

At the Idaho National Laboratory Hot Fuel Examination Facility, containment box operator Jake Maupin moves a manipulator arm into position around a pencil-thin nuclear fuel rod. He is preparing for a procedure that he and his colleagues have practiced repeatedly in anticipation of this moment in the hot cell.

It’s been a good month for Nano Nuclear in the state of Illinois. On October 7, the Office of Governor J.B. Pritzker announced that the company would be awarded $6.8 million from the Reimagining Energy and Vehicles in Illinois Act to help fund the development of its new regional research and development facility in the Chicago suburb of Oak Brook.

Holtec International has confirmed it is canceling plans to build a consolidated interim storage facility for spent nuclear fuel in southeastern New Mexico. Named the HI-STORE CISF, the facility would have stored up to 10,000 canisters of commercial SNF on land owned by the Eddy-Lea Energy Alliance (ELEA) near the towns of Carlsbad and Hobbs.

During a Senate Environment and Public Works Committee hearing today, Ho Nieh, President Donald Trump’s nominee to serve as a commissioner at the Nuclear Regulatory Commission, was urged to maintain the agency’s independence regardless of political pressure from the Trump administration.

The Department of Energy’s Office of Environmental Management and Office of Science and the National Nuclear Security Administration issued requests for proposals last month, seeking plans from companies to build AI data centers at the Oak Ridge Reservation, the Savannah River Site, and Idaho National Laboratory.

Nieh

The Senate Environment and Public Works Committee will hold a nomination hearing Wednesday for Ho Nieh, President Donald Trump’s nominee to serve as a commissioner at the Nuclear Regulatory Commission.

Trump nominated Nieh on July 30 to serve as NRC commissioner the remainder of a term that will expire June 30, 2029, as Nuclear NewsWire previously reported.

Nieh has been vice president of regulatory affairs at Southern Nuclear since 2021, though since June 2024 he has been at the Institute of Nuclear Power Operations as a loaned executive.

A return to the NRC: If confirmed by the Senate, Nieh would be returning to the NRC after three previous stints totaling nearly 20 years.

The Nuclear Regulatory Commission has approved a license application submitted by Disa Technologies to use high-pressure slurry ablation (HPSA) technology for remediating abandoned uranium mine waste at inactive mining sites.