Jarrell

Roger Jarrell will lead the Department of Energy’s Office of Environmental Management as the new principal deputy assistant secretary. Jarrell, who served in the office during the first Trump administration, was named DOE-EM senior advisor in January. Prior to that, he served as the general counsel and previously was the government and stakeholder interface at DOE cleanup contractor UCOR, of Oak Ridge, Tenn.

Jarrell takes over the assistant secretary position, listed on DOE-EM’s organizational chart as EM-2, from Dae Chung, a long-serving DOE-EM executive who was tapped by the Trump administration in March to lead the office as acting principal deputy assistant secretary following the departure of Candice Robertson, who had led the office since June 2024.

Mike Mlynarek believes in this expression: “In the end it will be OK; and if it’s not OK, it’s not the end.”

As the site vice president at Palisades nuclear power plant in Covert Township, Mich., Mlynarek is overseeing one of the most exciting projects in the United States nuclear power industry. If all goes according to plan, Holtec’s Palisades plant will be splitting atoms once again by the end of 2025 and become the first U.S. nuclear facility to restart after being slated for decommissioning.

Southern Nuclear recently loaded nuclear fuel with uranium-235 enriched up to 6 percent—higher than the usual 3–5 percent enrichment—into Vogtle-2 to test it through irradiation.

Brandon Williams appeared before the U.S. Senate’s Committee on Armed Services this week to answer questions on how he would lead the Department of Energy’s National Nuclear Security Administration, if confirmed for the job.

President Donald Trump announced Williams as his pick for the NNSA role in January. Energy Secretary Chris Wright said he was personally involved in the selection of Williams for the role, telling the Exchange Monitor in January, “He’s a smart, passionate guy [who] wants to defend our country.”

The Department of Energy has announced its first round of conditional commitments to provide high-assay low-enriched uranium to five U.S. nuclear developers. According to the DOE, the delivery of HALEU will support the commercialization of advanced nuclear technologies, aiming to deliver secure, affordable, and reliable energy to Americans.

A bill that would create a nuclear energy task force in Delaware has passed the state Senate and is now being considered in the House of Representatives.

The Canadian Nuclear Safety Commission has announced its approval for Ontario Power Generation to construct a General Electric Hitachi BWRX-300 small modular reactor at its Darlington site in Clarington, Ontario.

The United Nations' nuclear watchdog delivered emergency medical supplies to Ukraine last week as part of ongoing aid to the country since its conflict with Russia began in 2022.

Here is a recap of industry happenings from the recent past:

ADVANCED REACTOR MARKETPLACE

Texas universities evaluating SMRs for water desalination

Natura Resources has signed a memorandum of understanding with two Texas universities—Texas Tech University and Abilene Christian University—to evaluate the integration of the company’s molten salt small modular reactor technology with water desalination systems. The collaboration includes Texas Tech’s Texas Produced Water Consortium, which was established by the Texas legislature in 2021 to explore the potential benefits of using treated produced water for purposes outside of the oil and gas industry of the Permian Basin. Produced water is salty or brackish hydrocarbon-containing water that is produced as a byproduct of oil and gas extraction. The stated goal of the new collaboration is to develop “a sustainable solution for water scarcity by purifying produced water from oil and gas operations, making it available for agricultural and other beneficial uses.” Abilene Christian University is planning to host the first deployment of Natura Resources’ Natura MSR-1, a 1-MWt molten salt research reactor.

Nuclear Energy Agency Director General William D. Magwood IV visited Mongolia recently for a series of meetings with government representatives and to participate in discussions on nuclear energy development in the country.

The Department of Energy’s National Isotope Development Center (NIDC) on March 31 announced the successful long-distance shipment in the United States of a biologically active compound labeled with the medical radioisotope astatine-211 (At-211). Because previous shipments have included only the “bare” isotope, the NIDC has described the development as “unleashing medical innovation.”

The Department of Energy announced March 31 that a new Molten Salt Flow Loop Test Bed at Idaho National Laboratory recently went through its inaugural test run. The closed-loop test system will allow for continuous monitoring and analysis of chloride-based molten salt reactor technology and instruments before the construction of the Southern Company/TerraPower Molten Chloride Reactor Experiment. MCRE—an experimental fast-spectrum molten salt research reactor—will be built at INL’s repurposed Zero Power Physics Reactor, which has been renamed LOTUS (Laboratory for Operation and Testing in the United States).

The Nuclear Regulatory Commission has received a license application from Disa Technologies to use high-pressure slurry ablation (HPSA) technology for remediating abandoned uranium mine waste at inactive mining sites. Disa’s headquarters in are Casper, Wyo.

Colorado Gov. Jared Polis signed a bill into law on Monday that adds nuclear to the state’s clean energy portfolio—making nuclear power eligible for new sources of project financing at the state, county, and city levels.

Servis

Scientists at Argonne National Laboratory are investigating a used nuclear fuel recycling technology that could lead to a scaled-down and more efficient approach to metal recovery, according to a recent news article from the lab. The research, led by Argonne radiochemist Anna Servis with funding from the Department of Energy’s Advanced Research Projects Agency–Energy (ARPA-E), could have an impact beyond the nuclear fuel cycle and improve other high-value metal processing, such as rare earth recovery, according to Argonne.

The research: Servis’s work is being carried out under ARPA-E’s CURIE (Converting UNF Radioisotopes Into Energy) program. The specific project—Radioisotope Capture Intensification Using Rotating Packed Bed Contactors—started in 2023 and is scheduled to end in January 2026.

All three units at the Duke Energy’s Oconee nuclear power plant in South Carolina are now licensed to operate for an additional 20 years.

Dozens of Westinghouse employees and supply chain partners descended on Washington, D.C., last week to build legislative support for new nuclear projects.

A bill being considered in the Texas legislature would create a taxpayer-funded program to draw advanced nuclear projects to the state.

GOP state Rep. Cody Harris authored House Bill 14, which proposes use of public dollars to help fund nuclear construction, provide grants for reactors, and continue development research. The legislation would allocate up to $2 billion for a new Texas Advanced Nuclear Deployment Office and create within it a state coordinator position to assist in the state and federal permitting processes, according to Inside Climate News.

Fusion startup Type One Energy has announced the publication of a baseline physics design basis for its proposed Infinity Two stellarator fusion pilot power plant. The design basis was published in a series of seven papers in a special issue of the Journal of Plasma Physics. According to the company, the design basis realistically considers for the first time the relationship between competing requirements for plasma performance, power plant startup, construction logistics, reliability, and economics utilizing actual power plant operating experience.

Dow and X-energy announced today that they have submitted a construction permit application to the Nuclear Regulatory Commission for a proposed advanced nuclear project in Seadrift, Texas. The project could begin construction later this decade, but only if Dow confirms “the ability to deliver the project while achieving its financial return targets.”