Readers of Nuclear News will have heard of historical applications of civilian maritime nuclear power, like the merchant ship NS Savannah and the USS Sturgis floating power plant. With a few exceptions there has been little action in this area for over 50 years, and there are plenty of reasons and opinions as to why, but over the last few years the dramatic increase in interest from the maritime industry and its stakeholders has been undeniable.

On Wednesday, Idaho National Laboratory announced that the National Reactor Innovation Center’s Demonstration of Microreactor Experiments (DOME) test bed is now “open for business.”

With DOME’s opening, microreactor developers will soon be able to test, demonstrate, and validate their reactor designs. Rian Bahran, the Department of Energy’s deputy assistant secretary for nuclear reactors, called this “essential infrastructure” a “testament to our commitment to a robust nuclear future” and a key tool for “accelerating the development and deployment” of new energy technologies.

Gov. Mikie Sherrill signed legislation that lifted the state’s de facto moratorium on new nuclear construction projects. (Photo: Office of Governor)

New Jersey has become the latest state to lift a moratorium on the construction of new nuclear power plants, with Gov. Mikie Sherrill signing new legislation Wednesday with the state’s two nuclear power plants serving as the backdrop.

The legislation, S. 3870/A. 4528, allows the commissioner of the state’s Department of Environmental Protection to approve permits for the construction and operation of new nuclear facilities “based on safe, [Nuclear Regulatory Commission]–compliant waste storage.” Prior to this bill, New Jersey law practically banned such construction, because the state’s Coastal Area Facility Review Act required an approved method from the NRC for radioactive waste disposal that was outdated and could not be met.

Helion has launched a program formalizing its process of funding projects with external research partners. On Tuesday, the fusion company announced it would fund 25 proposals ranging from $50,000 to $500,000, totaling $4 million. The recipients include private companies, universities, and national laboratories.

Each spring, newly elected leaders prepare to step into their roles at the American Nuclear Society. During this year’s election cycle, ANS members voted for the newest vice president/president-elect and five board of director positions (four U.S., one non-U.S.). About 19 percent of eligible members of the Society voted—a 2 percent dip from last year’s turnout.

Fusion technology company Shine has been issued a conditional commitment for a loan of up to $263 million by the Department of Energy’s Office of Energy Dominance Financing (EDF) to support the construction of the company’s medical isotope production facility in Janesville, Wis.

Yesterday, the Advanced Research Projects Agency–Energy (ARPA-E) announced its largest concentrated investment in fusion technology so far, committing $135 million over the next 18 months to fund projects that develop and commercialize fusion technologies.

The agency said it has invested approximately $134 million in commercial fusion since it began funding fusion projects with the launch of its ALPHA program in 2014, so the next year and a half will see a doubling of the agency’s investment in the fusion space.

The security drills held at commercial nuclear power plants as part of the Force-on-Force (FOF) inspection program will no longer be led by the Nuclear Regulatory Commission.

The commissioners on Friday approved recommendations presented earlier in the year by NRC staff to significantly overhaul the security program. This includes phasing out NRC-led drills by 2028. Following the phaseout, drills will be led by the licensee, with the NRC observing.

The Nuclear Regulatory Commission has sunset its aircraft impact assessment rule for 2027, as NRC staff have addressed several of the public comments considered “significant and adverse” that prompted the agency this past winter to temporarily delay the sunsetting move.

The final rule, which was published in the Federal Register on Wednesday, addressed some of the more contentious concerns raised by the public. It sets a conditional sunset date of April 8, 2027, “unless the NRC determines that the cessation deadline should be extended to a date not more than 5 years in the future after offering the public an opportunity to provide input on the costs and benefits of this section and considering that input.”

Three years ago, the Texas Public Utility Commission launched the Advanced Nuclear Reactor Working Group at the direction of Gov. Greg Abbott. One year later, that new group issued a report recommending several actions to the Texas legislature that could be taken to attract new nuclear projects to the state.

Included in those recommendations were the foundation of a nonregulatory entity to coordinate Texas’s “strategic nuclear vision” along with an advanced nuclear fund to help “overcome the funding valley project developers face” in the state.

As researchers continue to seek ways to better understand the plasma inside fusion machines to fully harness fusion energy, Princeton Plasma Physics Laboratory is leading a project to provide new X-ray imaging systems to two international tokamak projects: WEST, in southern France, and JT-60SA, in Japan—both of which are designed to support the development of ITER.

Kenya and Rwanda are continuing to make progress toward deployment of their first nuclear reactors sometime in the near future, according to recent developments coming out of the African continent. Here are updates on the two countries’ nuclear ambitions.

The Department of Energy’s Gateway for Accelerated Innovation in Nuclear (GAIN) has recently awarded three second-round fiscal year 2026 vouchers to support the development of advanced nuclear technologies. Each company will get access to specific capabilities and expertise in the DOE’s national laboratory complex—in this round of awards both Oak Ridge National Laboratory and Argonne National Laboratory are named—and will be responsible for a minimum 20 percent cost share, which can be an in-kind contribution.

Nuclear technology start-up Project Omega announced that it has been awarded a contract through the Department of Energy’s Advanced Research Projects Agency-Energy (ARPA-E) to advance used nuclear fuel recycling. Project Omega said the award will be used to validate key components of its molten salt electrochemical recycling platform designed to process UNF, recover valuable isotopes, and reduce long-term waste management challenges.

The White House is requesting $1.5 billion for the Department of Energy’s Office of Nuclear Energy in the fiscal year 2027 budget proposal, about 9 percent less than the previous year.

The request from the Trump administration is one of several associated with nuclear energy in the proposal, which was released Friday. Congress still must review and vote on the budget.

Yesterday, the Nuclear Regulatory Commission announced that it has received an application from Westinghouse to renew and update the design certification (DC) for its AP1000 reactor. This application seeks to formally incorporate the lessons learned from the construction of Vogtle-3 and -4 into the design control document (DCD) of the AP1000.

This long-expected submittal builds on previous plans at both the NRC and Westinghouse for the future of gigawatt-scale light water reactor deployments in the United States.

With the significant advances in additive manufacturing (AM), otherwise known as 3D printing, Orano Federal Services and the University of North Carolina at Charlotte recently re-examined the capabilities to print impact limiters for transportation casks used to ship spent nuclear fuel. Impact limiters protect transportation casks (sometimes also referred to as transportation overpacks) and their contents during an accident. Impact limiter designs must withstand testing based on a certain significance level of hypothetical accidents, including drops, crushing, fires, and immersion in water.

The investment firm Energy Capital Partners (ECP) is to reacquire nuclear services company EnergySolutions from TriArtisan Capital Advisors, it was announced yesterday. Terms of the transaction, which is expected to close in 2026, subject to customary regulatory approvals, were not disclosed.

Nuclear reactor designs approved by the Department of Energy or Department of Defense could get streamlined pathways through the Nuclear Regulatory Commission’s commercial licensing process should applicants wish to push the technology into the civilian sector.

A proposed rule introduced April 2 by the NRC would “improve NRC licensing review efficiency, where applicable, by explicitly establishing by regulation an additional means for reactor applicants to demonstrate the safety functions of their reactor designs, and thus, would contribute to the safe and secure use and deployment of civilian nuclear energy technologies.”

Today, the American Nuclear Society issued a press release joining the International Atomic Energy Agency’s calls for maximum military restraint around nuclear power plants and civilian research reactors.

This press release comes as the ongoing conflict in the Middle East primarily involving Iran, Israel, and the United States continues to rapidly evolve and intensify. As is the case with many armed conflicts, the confirmation of each reported update from multiple—and often contradictory—sources comes with significant difficulties. However, IAEA reporting sheds significant light on the current state of Iran’s nuclear facilities.