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.

Jong Kim in 1994 . . .

How did I get interested in nuclear energy? I am a mechanical engineer by education, with a B.S. (Seoul National University), M.S. (University of Missouri), and Ph.D. (Caltech), and I am a nuclear engineer by profession.

After receiving my degree in 1971, I stayed on as a research fellow for two years and then moved to Penn State’s Garfield Thomas Water Tunnel, which at the time was the largest closed-loop tunnel in the world, as a research associate doing naval hydrodynamics research.

That was the year the infamous energy (oil) crisis hit. I thought that nuclear energy would become a critical pillar in energy security and independence. The nuclear profession looked promising. Brookhaven National Laboratory was hiring engineers to develop computer codes, so I decided to join the team and in 1975 became an associate engineer at BNL. This is how my long nuclear journey began.

The Department of Energy’s Office of Nuclear Energy has posted a list of the advantages and challenges of using nuclear energy to power AI data centers, which some estimates suggest could consume as much as 12 percent of U.S. energy production by 2028. The DOE also posted a brief video on its YouTube channel to accompany the list.

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 latest edition of Uranium 2024: Resources, Production and Demand, commonly known as the Red Book, reports that current uranium resources are sufficient to meet low- and high-growth nuclear capacity needs through 2050 and beyond, but that further development of resources is still required. Even if nuclear capacity remains stable at 2050 levels through the end of the century, the report noted that cumulative demand “could exceed the current identified uranium resource base of nearly 8 million tonnes by the 2080s under the low-growth demand scenario and by the 2110s under the high-growth demand scenario outlined in this edition.”

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.

Gary Adkins

Subsequent license renewal (SLR) authorizes nuclear power plants to operate for an additional 20 years beyond the 60 years of the initial license (years 1–40) and the first license renewal (years 41–60). NUREG-2191, Generic Aging Lessons Learned for Subsequent License Renewal (GALL-SLR), and NUREG-2192, Standard Review Plan for Review of Subsequent License Renewal Applications (SRP-SLR), were issued in July 2017 and provide guidance for generic evaluation of plant aging management programs and reviews of SLR applications, respectively, by Nuclear Regulatory Commission staff.

The first SLR application was submitted to the NRC for review in January 2018. A total of 10 additional SLR applications addressing 20 operating units have been submitted to the NRC. Nine operating units have been approved by the NRC, and 13 units are under review. These 22 units do not have any issues, including operating experience issues, precluding them from achieving a renewed license.

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 Department of Energy has announced that workers at its Savannah River Site in South Carolina recently removed legacy uranium materials from the site’s HB Line as part of an effort to clear the facility of its inventory of legacy nuclear materials. The removed legacy uranium was originally produced by the Y-12 National Security Complex at Oak Ridge, Tenn.

The American Nuclear Society’s 2025 Annual Conference will take place June 15–18 this year in Chicago at the Downtown Marriott. The conference is an opportunity to take part in one of the largest gatherings of nuclear professionals in the country and engage with leaders from across the nuclear science and technology landscape. In addition to an impressive list of government and industry leaders, ANS is also planning several outstanding hot-topic technical sessions and popular plenary speakers.

While attendance at the 2025 Waste Management Conference was noticeably down this year due to the ongoing federal retrenchment, the conference, held March 9-13 in Phoenix, Ariz., still drew a healthy and diverse crowd of people working on the back end of the nuclear fuel cycle, both domestically and internationally.

Craig Piercy
cpiercy@ans.org

This month’s Nuclear News pays tribute to the people and projects that keep our nuclear power plants running.

In the nuclear industry, “life extension” is a venerable term that broadly describes the care required to sustain the safe and efficient operation of large, complex energy generation facilities for decades to come, some of which you will read about in these pages.

Of late, however, the general concept of life extension has also taken a firmer hold in our societal consciousness.

Whether we absorb it from Instagram videos about some Silicon Valley techie’s quest for immortality or sense it in one of the thousands of dryly written journal articles documenting our increasing ability to control and change life at the molecular level, the promise of extended life and health has universal appeal—and it’s never seemed more within reach than it does right now.

In the high-stakes world of power generation, ensuring continuous operation and reducing downtime are central priorities. With the increasing complexity of power generation systems, maintenance practices are evolving to meet these demands more efficiently. Understanding the roles of Predictive Maintenance (PdM), Preventive Maintenance (PM), and Reactive Maintenance (Run-to-Failure) is crucial for maintenance professionals in the energy sector to make informed decisions about equipment management and long-term operational strategy.

Nuclear start-ups Deep Fission and Deep Isolation will collaborate on the management of spent nuclear fuel from Deep Fission’s advanced underground reactors under a memorandum of understanding signed by the companies.

ANS Executive Director/CEO Craig Piercy recently spoke on nuclear power’s potential for answering today’s energy demands as part of the Distinguished Lecture Series at the University of Missouri. He also took part in the ribbon cutting for a large addition to the University of Missouri Research Reactor (MURR).

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.

The Chicago–Great Lakes Local Section of the American Nuclear Society hosted a presentation at the Society’s headquarters in Westmont, Ill., on developments at the molten salt research reactor at Abilene Christian University’s Nuclear Energy Experimental Testing (NEXT) Lab.

A recording of the full presentation is available on the ANS website at ans.org/webinars.

Lisa Marshall
president@ans.org

Global partnerships advance the nuclear enterprise, demonstrating commitment to energy security, supply chain buildout, and economic and human development. Collaborations remain imperative, keeping these things in mind:

Approximately half of the 400-GW reactor fleet will be retiring by 2040.¹

The forecasted need for new nuclear is 300–600 GW by 2050.

There is a need to counter the build-own-operate model.²

Appropriate funding and financing mechanisms are needed.

Host country regulatory oversight is paramount.

By 2050, there will be 4 million nuclear professionals supporting the industry.³