The OECD Nuclear Energy Agency has published the third edition of the NEA Small Modular Reactor Dashboard, a comprehensive global review of SMR technology that defines criteria for assessing progress in the development of these advanced reactors. The assessments are based on six dimensions of readiness: licensing, siting, financing, supply chain, engagement, and fuel.
A reactor vessel has been installed by Kairos Power for its third Engineering Test Unit (ETU 3.0) at the company’s campus in Oak Ridge, Tenn.
For 2,300 hours, the molten salt pump Shaft Seal Test Facility (SSTF) operated at the University of Michigan’s Thermal Hydraulics Laboratory, according to an article from UM. The large-scale experiment was designed to evaluate shaft seal performance in high-temperature pump systems. Fewer than 10 facilities worldwide have successfully operated fluoride or chloride salts for more than 100 hours using over 10 kilograms of material.
The Nuclear Regulatory Commission has accepted for review the Tennessee Valley Authority’s construction permit application for a BWRX-300 small modular reactor at its Clinch River site in Tennessee. The NRC expects to complete its review by December 2026.
Zeldin
In a recent interview on New York radio station 77 WABC, administrator of the Environmental Protection Agency Lee Zeldin talked with host John Catsimatidis about the near-term future of the domestic nuclear industry and the role the EPA will play in the sector.
Catsimatidis kicked off the interview by asking if the U.S. will be able to reach total energy independence. Zeldin responded by saying that decreasing energy dependence on other countries, especially adversaries, was a top priority for him and the Trump administration.
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As the U.K. government looks to finalize investment decisions for the construction of the Sizewell C nuclear power plant this summer, France’s state-owned EDF has announced plans to take a 12.5 percent stake in the project and commit up to £1.1 billion ($1.5 billion) in funding.
The Nuclear Regulatory Commission has whittled down the timeline for reviewing TerraPower’s construction permit application for Kemmerer Power Station Unit 1 in Wyoming. Announcing a new, more aggressive schedule, the NRC said it aims to complete its review by the end of 2025, eight months earlier than originally planned.
SMR developer Arc Clean Technology has signed a memorandum of understanding with Deep Atomic to jointly explore deployment opportunities across North America.
NuScale earned approval for its “larger” US460 77-MWe small modular reactor plant design, the Nuclear Regulatory Commission announced last week.
The standard design approval (SDA) is a determination by NRC staff that a reactor design meets the agency’s applicable design requirements, and companies can reference it when applying for a license to build and operate the reactor—but it does not ensure license approval from the commission.
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
The Tennessee Valley Authority announced yesterday that it has submitted a construction permit application to the Nuclear Regulatory Commission for the construction of a GE Vernova Hitachi Nuclear Energy BWRX-300 small modular reactor at the Clinch River nuclear site in Oak Ridge, Tenn.
The Nuclear Regulatory Commission has accepted Dow’s construction permit application to build an X-energy small modular reactor in Seadrift, Texas.
Utah-based EnergySolutions announced that it is working with Milwaukee-based utilities company WEC Energy Group to explore new nuclear generation in Wisconsin and will begin efforts to pursue an early site permit from the Nuclear Regulatory Commission for the closed Kewaunee nuclear power plant in Wisconsin.
NRC hosting public meetings today on TVA project
The U.S. Nuclear Regulatory Commission this week shared a portion of the construction permit application from the Tennessee Valley Authority to build a small modular reactor at the Clinch River nuclear site in Oak Ridge, Tenn.
In anticipation of TVA’s filing, NRC staff scheduled two public meetings in Oak Ridge for today, to discuss the agency’s process for licensing nuclear power plants.
Seattle-based TerraPower signaled its interest this week in building its Natrium small modular reactor in the United Kingdom, the company announced.
TerraPower sent a letter to the U.K.’s Department for Energy Security and Net Zero, formally establishing its intention to enter the U.K. generic design assessment (GDA) process. This is TerraPower’s first step in deployment of its Natrium technology—a 345-MW sodium fast reactor coupled with a molten salt energy storage unit—on the international stage.
Two recent news stories—the Department of Defense’s launching of the Advanced Nuclear Power for Installations (ANPI) program and the development of prototype nuclear batteries in Japan and South Korea—are tied together in an article by London-based writer Nick O’Hara, creator of the Substack Gridlocked: Why the 21st Century is Broken and How to Fix It.
According to O’Hara, these two developments taken together “could be the shard of light we need in otherwise dark times. Because innovations in advanced nuclear technology could be critical to unlocking the path to decarbonizing our societies and combatting climate change.”
On track to be the first SMR constructed in North America
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.
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.”
Hagerty
Blackburn
In a strongly worded opinion piece published by Power Magazine on March 24, Tennessee Sens. Marsha Blackburn and Bill Hagerty call for new leadership at the Tennessee Valley Authority to jumpstart its small modular reactor program.
The GOP lawmakers are looking to President Donald Trump and Energy Secretary Chris Wright to overhaul TVA’s board of directors to drive America’s role in the nuclear renaissance. TVA is the first and only U.S. energy company to obtain an early site permit for a small modular reactor, but the utility has not progressed on physical deployment of a unit since the permit was awarded in 2019.