May 26, 2025, 9:50AMUpdated October 17, 2025, 4:55PMNuclear NewsCory Hatch Commercial nuclear fuel rods being unloaded from cask inside a HFEF hot cell. (Photo: INL)
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.
Meeting participants gather in Idaho. (Photo: OECD NEA)
Members of the OECD Nuclear Energy Agency’s Second Framework for Irradiation Experiments (FIDES-II) joint undertaking gathered from September 29 to October 3 in Ketchum, Idaho, for the technical advisory group and governing board meetings hosted by Idaho National Laboratory. The FIDES-II Framework aims to ensure and foster competences in experimental nuclear fuel and structural materials in-reactor experiments through a diverse set of Joint Experimental Programs (JEEPs).
A side view, cutaway diagram of the original plans for the Hot Fuel Examination Facility. (Source: NN, May 1969)
The American Nuclear Society recently announced the designation of three new nuclear historic landmarks: the Hot Fuel Examination Facility (HFEF), the Neely Nuclear Research Center, and the Oak Ridge Gaseous Diffusion Plant. Today’s article, the first in a three-part series, will focus on the historical significance of HFEF.
October 10, 2025, 4:42PMNuclear NewsIlyas Yilgor, Mauricio Tano, Katrina Sweetland, Joshua Hansel, and Piyush Sabharwall A high-temperature heat pipe glows during operation at ~800°C at INL’s SPHERE test facility. (Photo: INL)
Idaho National Laboratory under the Department of Energy–sponsored Microreactor Program recently conducted a comprehensive phenomena identification and ranking table (PIRT) exercise aimed at advancing heat pipe technology for microreactor applications.
A cutaway labeling the key components of the MARVEL reactor. (Photo: INL)
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: Doug Gerstner, a nuclear safety engineer at Idaho National Laboratory, who presented “Application of a Qualitative RIPB Approach for the MARVEL Microreactor at INL.”
Watch the full webinar here.
Oklo employees alongside leaders from federal, state, and local government at the ground-breaking ceremony. (Photo: Oklo)
Following the same milestones from Aalo Atomics and Valar Atomics, Santa Clara, Calif.–based reactor start-up Oklo has become the third company participating in the Department of Energy’s Nuclear Reactor Pilot Program to break ground on its fast-tracked project at Idaho National Laboratory.
Urenco USA employees move a uranium hexafluoride cylinder to an overpack in preparation for shipping to a fuel fabricator.(Photo: Urenco USA)
The startup of a new cascade of gas centrifuge at Urenco USA’s (UUSA) uranium enrichment facility in Eunice, N.M., came ahead of schedule and on budget, according to the company.
Idaho Cleanup Project crews separate noncontaminated metal for recycling at INL’s Naval Reactors Facility. (Photos: DOE)
The Department of Energy’s Office of Environmental Management said the Idaho Cleanup Project (ICP) has recycled more than 2,100 tons of noncontaminated metal debris since 2022 as it works to demolish three legacy Naval Nuclear Propulsion Program prototypes at the Idaho National Laboratory Site, saving taxpayers nearly $2 million in disposal costs while advancing the project’s environmental goals.
Oklo’s proposed Advanced Fuel Center in Tennessee. (Image: Oklo)
Late last week saw two announcements from companies working to recycle used nuclear fuel on a commercial scale, providing welcome news to anyone hoping to see the United States move to unlock the hidden potential of the more than 94,000 metric tons of spent fuel stored at power plant sites around the country.
Specialized loading equipment for TRUPACT-IIIs is sent from SRS to the Idaho Cleanup Project for reuse. (Photo: DOE)
Demonstrating the beneficial reuse of equipment among Department of Energy cleanup sites, the DOE’s Office of Environmental Management transferred TRUPACT-III shipping equipment from its Savannah River Site in South Carolina to the Idaho Cleanup Project at the Idaho National Laboratory Site. This collaboration shows how DOE-EM drives efficiency, focusing on priorities and reining in costs without sacrificing safety or effectiveness, the DOE said.
A still image from a NASA video illustrating power needs on the lunar surface. (Image: NASA)
After the Trump administration’s new push to get a nuclear reactor on the moon by 2030 was first reported by Politico last month, media played up the shock value for people new to the concept. Few focused on the technical details of the new plan for lunar fission surface power (FSP), which halts and replaces a program that began under the first Trump administration with an early hope of getting a reactor on the moon by the end of 2026. Now, the focus is on streamlining NASA’s internal processes to support commercial space companies that can build a reactor with more than twice the power and mass and have it ready for launch by 2030.
Scale model of the Pele transportable microreactor. (Image: BWXT)
Fabrication of the reactor core for the 1.5-MW Project Pele demonstration microreactor has begun, according to BWX Technologies. Pele is being developed at the BWXT Innovation Campus in Lynchburg, Va., for the U.S. Department of Defense’s Strategic Capabilities Office.
ORNL leadership gathered at the Nuclear Opportunities Workshop in Knoxville, with Trey Lauderdale, CEO of Atomic Canyon. From left: Joe Hoagland, Director of Special Initiatives; Susan Hubbard, Deputy for Science and Technology; Stephen Streiffer, ORNL Director; Lauderdale; Gina Tourassi, Associate Laboratory Director for Computing and Computational Sciences; and Mickey Wade, Associate Laboratory Director for Fusion and Fission Energy and Science. (Photo: Carlos Jones/ORNL)
The United States has tight new deadlines—18 months, max—for licensing commercial reactor designs. The Department of Energy is marshaling the nuclear expertise and high-performance computing assets of its national laboratories, in partnership with private tech companies, to develop generative AI tools and large-scale simulations that could help get nuclear reactor designs through the Nuclear Regulatory Commission’s licensing process—or the DOE’s own reactor pilot program. “Accelerate” and “streamline” are the verbs of choice in recent announcements from Oak Ridge National Laboratory and Idaho National Laboratory, as they describe plans with Atomic Canyon, Microsoft, and Amazon.