Nuclear News on the Newswire

High-temperature plumbing and advanced reactors

The use of nuclear fission power and its role in impacting climate change is hotly debated. Fission advocates argue that short-term solutions would involve the rapid deployment of Gen III+ nuclear reactors, like Vogtle-3 and -4, while long-term climate change impact would rely on the creation and implementation of Gen IV reactors, “inherently safe” reactors that use passive laws of physics and chemistry rather than active controls such as valves and pumps to operate safely. While Gen IV reactors vary in many ways, one thing unites nearly all of them: the use of exotic, high-temperature coolants. These fluids, like molten salts and liquid metals, can enable reactor engineers to design much safer nuclear reactors—ultimately because the boiling point of each fluid is extremely high. Fluids that remain liquid over large temperature ranges can provide good heat transfer through many demanding conditions, all with minimal pressurization. Although the most apparent use for these fluids is advanced fission power, they have the potential to be applied to other power generation sources such as fusion, thermal storage, solar, or high-temperature process heat.1–3

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Industry Update—June 2025

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

ADVANCED REACTOR MARKETPLACE

DOD selects companies for its installations microreactor program

The Department of Defense has selected eight technology companies as being eligible to seek funding for developing microreactor technologies as part of the DOD’s Advanced Nuclear Power for Installations program. That program seeks to “design, license, build, and operate one or more microreactor nuclear power plants on military installations . . . to support global operations across land, air, sea, space, and cyberspace.” The selected companies are Antares Nuclear, BWXT Advanced Technologies, General Atomics Electromagnetic Systems, Kairos Power, Oklo, Radiant Industries, Westinghouse Government Services, and X-energy. Specific objectives of the DOD program are to “field a decentralized scalable microreactor system capable of producing enough electrical power to meet 100 percent of all critical loads” and to “utilize the civil regulatory pathways of the Nuclear Regulatory Commission to stimulate commercial nuclear microreactor technology development and the associated supply chains in the U.S.”

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Southern Nuclear applies for SLR for Hatch

The owners of the two-unit Hatch nuclear power plant are hoping to operate the facility for up to 80 years. Southern Nuclear submitted its application this month to the Nuclear Regulatory Commission for a subsequent license renewal for the dual-unit plant in Baxley, Ga.

The SLR seeks to extend the operating licenses of both boiling water reactors at Hatch from 60 to 80 years. The NRC approved the plant’s first 20-year license renewal in January 2002, which extended Unit 1’s license through August 6, 2034, and Unit 2’s through June 13, 2038.

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Glovebox fabrication for NNSA work underway at Savannah River Site

The fabrication of gloveboxes is underway for the plutonium pit production mission at the Department of Energy's Savannah River Site near Aiken, S.C.

“Gloveboxes will be a key component of pit production operations within the Savannah River Plutonium Processing Facility [SRPPF],” said Dennis Carr, president and CEO of Savannah River Nuclear Solutions (SRNS), the management and operating contractor for the site. “The early procurement and fabrication of these gloveboxes is critical to delivering completion of this project for the National Nuclear Security Administration by the early 2030s.”

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Filling technical gaps and fueling the advancing nuclear supply chain at SRNL

Ensuring energy resilience for our nation is on the minds of leaders and citizens alike. Advances in nuclear power technologies are increasing needs within the nuclear industry supply chain. Savannah River National Laboratory’s decades of experience in nuclear materials processing makes the lab uniquely qualified to meet the current and future challenges of the nuclear fuel cycle.

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Fusion energy surges in Great Lakes region

The new Great Lakes Fusion Energy Alliance wants to build a fusion energy engineering consortium in the Great Lakes region to expand the Midwestern momentum behind fusion energy development and commercialization. The ultimate goal is to build fusion energy power plants in the region, but first the nascent organization is looking to invite other stakeholders into its alliance of universities, fusion companies, and supply chain and government partners. Together, they plan to “accelerate commercialization, expand the workforce, grow the supply chain, and make fusion more economically viable and sustainable as a global center of excellence.”

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NC State, SRNS partner to attract young talent

North Carolina State University and Savannah River Nuclear Solutions (SRNS) have joined forces to address the ongoing need for specialists in nuclear and criticality safety engineering (N&CSE) at the Department of Energy’s Savannah River Site, near Aiken, S.C.

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Trump issues executive orders to overhaul nuclear industry

The Trump administration issued four executive orders on Friday aimed at boosting domestic nuclear deployment ahead of significant growth in projected energy demand in the coming decades. These orders aim to reclaim leadership in nuclear technology crucial for national security and competitive AI advancements.

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