Optimizing nuclear plant outages: Data analytics tools and methods for enhancing resilience and efficiency

September 26, 2025, 1:54PMNuclear NewsDiego Mandelli, Shawn St. Germain, Congjian Wang, Edward Chen, Norman John Mapes, Svetlana Lawrence, and Ahmad Al Rashdan

Nuclear power plant refueling outages are among the most complex phases in a plant’s operational cycle.1 During these outages, tens of thousands of activities, including maintenance and surveillance, are conducted simultaneously within a short timeframe. Typically lasting three to four weeks, these operations involve large crews of contractors with diverse skill sets performing tasks ranging from testing and surveillance to maintenance. Outages may extend longer if major backfitting or modernization projects are planned. Consequently, plant outages are expensive, incurring significant operational costs, such as contractor labor and equipment, as well as the loss of generation while the plant is off line. This can easily cost a plant operator more than $1 million a day. Therefore, there is a constant need to mitigate the economic impact on plants by reducing the frequency, duration, and risks associated with these outages.2,3

INL director highlights nuclear workforce challenges

September 26, 2025, 1:03PMNuclear News

Wagner

John Wagner, director of Idaho National Laboratory, spoke at the INL-hosted Western Governors’ Association’s Energy Superabundance conference earlier this week, where he stressed the importance of workforce development and training and educational opportunities for Idaho’s energy sector. He told conference attendees that INL is working to build and permit new nuclear reactors to help meet rapidly growing energy demands in the United States.

In a subsequent interview with the Idaho Capital Sun, Wagner explained the challenges of building the new nuclear workforce, saying, “When you think about your path, fast forward, and we’re building out many reactors in the West and beyond. It’s not just about nuclear engineers anymore. It’s about welders. It’s about all the different crafts. It’s about nuclear operators.”

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Deep Isolation licenses its disposal technology to fed contractor Navarro

September 26, 2025, 9:30AMRadwaste Solutions
A prototype nuclear waste canister in the drillhole receptacle. (Photo: Deep Isolation)

Nuclear waste disposal technology company Deep Isolation Nuclear announced it has signed a technology licensing agreement with government contractor Navarro Research and Engineering, giving Navarro access to Deep Isolation’s portfolio of intellectual property for use in nuclear and hazardous waste management applications across the states of Tennessee and Idaho.

Centrus says Ohio stands to gain 300 jobs as enrichers await federal contracts

September 26, 2025, 7:01AMNuclear News
Centrus employees maneuver a cylinder at the American Centrifuge Plant in Piketon, Ohio. (Photo: Centrus Energy)

Centrus Energy announced a plan yesterday to add 300 new jobs at Centrus’s uranium enrichment plant in Piketon, Ohio “in advance of federal funding decisions.” The company envisions adding capacity for both low-enriched uranium and high-assay low-enriched uranium production at the American Centrifuge Plant in Piketon, Ohio, but the “size and scope” of public and private investment is “subject to being selected for funding by the U.S. Department of Energy.”

NEA conference focuses on new nuclear development

September 25, 2025, 3:00PMNuclear News
Representatives meet at the OECD NEA’s Roadmaps to New Nuclear 2025 conference. (Photo: OECD NEA)

More than 300 delegates from around the world attended the OECD Nuclear Energy Agency’s recent Roadmaps to New Nuclear 2025 conference in Paris, France. In attendance were representatives from governments, industry, public and private financial sectors, academia, legal firms, think tanks, and research institutions. Cohosted by the Korean government, the event focused on practical, near-term solutions to barriers facing nuclear new builds.

Mirion signs agreement to acquire Paragon

September 25, 2025, 12:00PMNuclear News

Atlanta-based radiation equipment provider Mirion announced that it has entered into a definitive agreement to acquire Paragon Energy Solutions, a leading provider of engineering technology for the nuclear power industry. Mirion purchased Paragon, based in Fort Worth, Texas, from Windjammer Capital Investors for approximately $585 million.

Valar Atomics breaks ground in Utah

September 25, 2025, 9:30AMNuclear News
The golden ground-breaking shovels for Valar’s USREL site are posed dramatically in front of an American flag hung on a Kiewit excavator. (Source: Valar Atomics)

El Segundo, Calif.–based reactor start-up Valar Atomics recently announced that it has broken ground on its test reactor, the Ward 250, at Utah San Rafael Energy Lab (USREL), becoming the second company participating in the Department of Energy’s Nuclear Reactor Pilot Program to do so.

TVA brings down Hartsville’s cooling tower

September 25, 2025, 7:01AMNuclear News
The Hartsville cooling tower. (Photo: Brian Stansberry)

The Tennessee Valley Authority has posted a video of the implosion of a 1970s-era, 540-foot-tall hyperbolic cooling tower at its Hartsville site in Tennessee, which once was to have hosted a nuclear power plant. The tower crashed to the ground at the hands of a demolition crew on September 18 as part of TVA’s actions to get rid of old, obsolete, and unused structures in the Tennessee Valley region and make room for future projects that are expected to add more than 6,200 megawatts of power.

Orano to supply Zeno with Am-241 to power space missions

September 24, 2025, 3:00PMNuclear News
Orano USA CEO Jean-Luc Palayer (middle) shakes hands with Zeno Power’s cofounder and CEO Tyler Bernstein (left) and Chief Commercialization Officer Harsh Desai. (Photo: Orano USA)

Zeno Power, a developer of nuclear batteries, is to receive americium-241 recovered from Orano’s La Hague nuclear fuel recycling site in Normandy, France, under a strategic agreement announced by the companies on September 24.

NEDHO: A conversation with Seungjin Kim

September 24, 2025, 12:10PMNuclear News

Kim

Recently, Nuclear Engineering Department Heads Organization Chair Seungjin Kim talked with Nuclear News about NEDHO’s current condition, governmental funding for NEDHO and university research, the impact of artificial intelligence and other technologies in the classroom, the influence of advanced reactors in nuclear engineering education, and other issues.

Kim, who is an ANS Fellow, is the Captain James F. McCarthy Jr. and Cheryl E. McCarthy Head of Nuclear Engineering at Purdue University, in West Lafayette, Ind. He began his 2025–2026 term as NEDHO chair earlier this year. He took over from the previous chair, Sukesh Aghara, professor and director of the Nuclear and Chemical Engineering Department at the University of Massachusetts–Lowell.

IAEA to work with WM Symposia on nuclear waste management

September 24, 2025, 7:01AMRadwaste Solutions
WM Symposia’s Greg Meyer (left) with Mikhail Chudakov from the IAEA. (Photo: WM Symposia)

WM Symposia, which hosts the annual Waste Management Conference in Phoenix, Ariz., announced it has signed a practical arrangement with the International Atomic Energy Agency aimed at strengthening international collaboration in the safe management of radioactive waste, decommissioning, and environmental remediation.

Type One Energy, TVA ink LOI in development of fusion power in Tennessee

September 23, 2025, 3:00PMNuclear News
From left, Type One Energy CEO Christofer Mowry, Tennessee Gov. Bill Lee, and TVA president and CEO Don Moul stand in the old turbine room of the Bull Run fossil plant. (Photo: TVA)

The Tennessee Valley Authority has issued a letter of intent to fusion energy start-up Type One Energy regarding the utility’s interest in the potential deployment of Type One Energy’s fusion power plant technology at TVA’s former Bull Run fossil plant site once it is commercially ready.

Looking ahead: The 2025 ANS Winter Conference & Expo

September 23, 2025, 9:32AMANS News

It soon will be time for the American Nuclear Society to hold its second annual conference of the year. The 2025 ANS Winter Conference & Expo will take place November 9–12 in Washington, D.C., at the Washington Hilton.

Click here to register for the meeting and be sure to do so before October 17 to take advantage of early-bird pricing.

Supplier Showcase focus: License renewals

September 22, 2025, 3:01PMNuclear News

The American Nuclear Society is hosting a Supplier Showcase webinar, “License Renewal: Smarter, Faster, Better,” tomorrow, September 23, from 2:00 p.m. to 3:00 p.m. (ET) on the increasing urgency of submitting license renewals and subsequent license renewals both efficiently and accurately.

The webinar is free for all viewers and requires registration.

University of New Mexico hosts nuclear camp for high school students

September 22, 2025, 9:32AMNuclear News
Experience Nuclear Engineering 2025 campers pose with UNM resident assistants and engineering department staff, including Carl Willis (far right). (Photo: University of New Mexico)

Amentum plans to add 3,000 U.K. nuclear jobs, receives WM contract

September 22, 2025, 7:02AMRadwaste Solutions
Amentum says nuclear growth in the U.K. will result in the hiring of 3,000 new workers over the next four. (Photo: Amentum)

Global engineering company Amentum announced plans on Thursday to create 3,000 new jobs over the next four years on the back of growth in nuclear power and defense in the United Kingdom.

The announcement follows President Donald Trump’s state visit to the U.K., during which a number of deals between the two countries were announced.