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American Nuclear Society

@americannuclear.bsky.social

1.7K followers 900 following 430 posts

Not-for-profit professional society dedicated to advancing peaceful uses of #nuclear science and technology. Since 1954. Join us at www.ans.org

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American Nuclear Society @americannuclear.bsky.social · 9h

Constellation announced yesterday that it has entered into a long-term power purchase agreement (PPA) with Amazon. This PPA will see Amazon supporting a 190-MWe uprate at the Calvert Cliffs nuclear power plant in Lusby, Md. Read more on Nuclear Newswire: www.ans.org/news/2026-10...

Amazon, Constellation partner for Calvert Cliffs uprate

American Nuclear Society @americannuclear.bsky.social · 30/09/2026

The University of South Carolina and Westinghouse Electric Company have signed an agreement to jointly create a workforce development program to support the deployment of Westinghouse AP1000 pressurized water reactors. Read more on Nuclear Newswire: www.ans.org/news/2026-09...

University of South Carolina teams up with Westinghouse on workforce development

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American Nuclear Society @americannuclear.bsky.social · 29/09/2026

Today, the Nuclear Regulatory Commission approved the Tennessee Valley Authority’s construction permit application for its planned GE Vernova Hitachi BWRX-300 at the Clinch River site in Oak Ridge, Tenn. Read more about the project's history on Nuclear Newswire: www.ans.org/news/2026-09...

TVA receives construction permit for Clinch River

American Nuclear Society @americannuclear.bsky.social · 28/09/2026

Recent news from the international nuclear community includes progress across Italy, where a key nuclear bill was passed; Poland, where a project agreement was signed; France, where the Roadmaps to New Nuclear conference was held; and more. Read more on Nuclear Newswire: www.ans.org/news/2026-09...

European new nuclear: Italian revival, Polish agreement, Parisian summit

American Nuclear Society @americannuclear.bsky.social · 25/09/2026

While the Monument Valley processing site in Arizona and the uranium mill site in Rifle, Colo., have been shut down for decades, environmental work at both sites is ongoing. At each, DOE-LM is using plants for those remediation efforts. Read more on Nuclear Newswire: www.ans.org/news/article...

Monument Valley and Rifle: Monitoring Plant-Based Approaches to Milling Site Remediation

American Nuclear Society @americannuclear.bsky.social · 24/09/2026

Georgia Power and Google have entered into an agreement that would have the tech giant provide support to uprate the Vogtle and Hatch nuclear power plants and add approximately 96 MWe of new capacity to the grid. Read more on Nuclear Newswire: www.ans.org/news/2026-09...

Google, Georgia Power announce partnership to uprate plants

American Nuclear Society @americannuclear.bsky.social · 23/09/2026

Researchers at Argonne have proposed a compact matrix-type heat exchanger for reactors using molten salt as a coolant, featuring an embedded hardware-software system designed to improve reliability and reduce costly interruptions. Read more on Nuclear Newswire: www.ans.org/news/2026-09...

Argonne designs molten salt–based heat exchanger with ML-based monitoring

American Nuclear Society @americannuclear.bsky.social · 22/09/2026

Engineering, construction, and project management firm Bechtel will no longer be involved with TerraPower’s Natrium power plant project after the two companies were unable to reach an agreement on the next phase of the project. Read more on Nuclear Newswire: www.ans.org/news/2026-09...

TerraPower, Bechtel part ways on Natrium project

American Nuclear Society @americannuclear.bsky.social · 21/09/2026

On Friday, more than 2 metric tons of FLiBe—a mixture of lithium fluoride and beryllium fluoride—was delivered to the Molten Salt Research Reactor (MSRR), a Natura Resources MSR-1, on the Abilene Christian University campus. Read more on Nuclear Newswire: www.ans.org/news/2026-09...

MSRE FLiBe arrives in Texas for reuse after decades in storage

American Nuclear Society @americannuclear.bsky.social · 18/09/2026

Reactor companies are now working with researchers at INL to irradiate their own fuel and, in some cases, explore variations of TRISO fuels that will give performance benefits relative to uranium dioxide fuel pellets. Read more on Nuclear Newswire: www.ans.org/news/article...

Industry and INL collaborate to test new varieties of TRISO fuel

American Nuclear Society @americannuclear.bsky.social · 17/09/2026

A hearing on Tuesday held by the U.S. House Committee on Energy and Commerce’s Energy Subcommittee examined the Nuclear Lifecycle Innovation Campuses program and the nation’s nuclear spent fuel policy. Read more on Nuclear Newswire: www.ans.org/news/2026-09...

House subcommittee discusses NLIC, nuclear spent fuel policy

American Nuclear Society @americannuclear.bsky.social · 16/09/2026

Antares recently announced that it has received a $161 million award from the Department of Defense to demonstrate a nuclear reactor and integrate it with a spacecraft for flight certification. Go deeper on Nuclear Newswire: www.ans.org/news/2026-09...

DOD funds $161 million space reactor award

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American Nuclear Society @americannuclear.bsky.social · 15/09/2026

The International Atomic Energy Agency's 2026 70th General Conference kicked off yesterday with opening remarks from Director General Rafael Mariano Grossi. Read more on Nuclear Newswire: www.ans.org/news/2026-09...

IAEA General Conference kicks off with opening remarks from DG Grossi

American Nuclear Society @americannuclear.bsky.social · 14/09/2026

The NRC unveiled its latest proposed rule Friday, one that would overhaul broad swathes of its regulations on nuclear reactor licensing, decommissioning, and operational oversight. Read more on Nuclear Newswire: www.ans.org/news/2026-09...

Reactor licensing, decommissioning, operational oversight regulations addressed in latest NRC rulemaking

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American Nuclear Society @americannuclear.bsky.social · 11/09/2026

Today, on Nuclear Newswire, Constellation's Steve Hesse, Jerry Segner, Mark Samselski, and Scott Schumacher talk about the ongoing implementation of a safety-related digital instrumentation and control modernization project at Limerick nuclear power plant. Read more: www.ans.org/news/article...

Limerick’s digital leap: Sustainability through modernization

American Nuclear Society @americannuclear.bsky.social · 10/09/2026

Earlier this week, West Virginia Gov. Patrick Morrissey announced that his state has been selected as a finalist for the DOE's Nuclear Lifecycle Innovation Campuses program. Read more on Nuclear Newswire: www.ans.org/news/2026-09...

West Virginia joins the ranks of NLIC finalists

American Nuclear Society @americannuclear.bsky.social · 09/09/2026

Iowa updates: NextEra Energy has secured a DOE loan of up to $1.9 billion for its restart of the Duane Arnold nuclear power plant, and the state’s Nuclear Energy Task Force issued a final report on the feasibility of new nuclear projects. Read more on Nuclear Newswire: www.ans.org/news/2026-09...

DOE loan, task force report spur nuclear momentum in Iowa

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American Nuclear Society @americannuclear.bsky.social · 08/09/2026

The Nuclear Regulatory Commission is proposing a new rule that addresses two different aspects of agency oversight: protecting drinking water and extending decommissioning timelines. Read more on Nuclear Newswire: www.ans.org/news/2026-09...

NRC proposes rule for decommissioning timelines, groundwater protection

American Nuclear Society @americannuclear.bsky.social · 04/09/2026

This past January, Westinghouse, Nordion, and PSEG Nuclear formalized agreements to implement newly developed cobalt-60 production technology at Units 1 and 2 of PSEG’s Salem nuclear power plant in New Jersey. Read the full feature on Nuclear Newswire: www.ans.org/news/article...

Westinghouse, Nordion, and PSEG team up to produce Co‑60 in the United States

American Nuclear Society @americannuclear.bsky.social · 03/09/2026

The Tennessee Department of Environment and Conservation has issued Type One Energy the first license to operate a commercial fusion machine in the state. Read more on Nuclear Newswire: www.ans.org/news/2026-09...

Tennessee issues commercial fusion license to Type One Energy for Bull Run site

American Nuclear Society @americannuclear.bsky.social · 02/09/2026

Researchers at Argonne have conducted experimental tests on how particles from paved surfaces become suspended from activities such as walking, driving, and vacuuming. Read more on Nuclear Newswire: www.ans.org/news/2026-09...

ANL dust study aims to improve emergency response models

American Nuclear Society @americannuclear.bsky.social · 01/09/2026

The Palisades nuclear power plant has drawn closer to restart, as plant staff began the process of loading fuel into the reactor vessel on Sunday morning. Read more on Nuclear Newswire: www.ans.org/news/2026-08...

Fuel loading process begins at Palisades

American Nuclear Society @americannuclear.bsky.social · 31/08/2026

Last week the Finnish nuclear waste management company Posiva began drilling holes for final disposal at the Onkalo deep geological repository, near the Olkiluoto nuclear power plant in western Finland. Read more on Nuclear Newswire: www.ans.org/news/2026-08...

Posiva begins drilling disposal holes at Finland’s Onkalo repository

American Nuclear Society @americannuclear.bsky.social · 25/08/2026

Closure of Diablo Canyon means Californians will face higher power bills, further strain on an already fragile grid, and more emissions. American Nuclear Society joins bipartisan calls to keep the plant running until 2045: www.ans.org/file/25209/1/ANS%2024%2…

American Nuclear Society @americannuclear.bsky.social · 21/08/2026

The DOE established the Center for Used Fuel Research to address challenges related to the long-term storage and transport of used nuclear fuel. Read Cory Hatch's full feature on Nuclear Newswire: www.ans.org/news/2026-08...

Center for Used Fuel Research: Building confidence in storage and transport

American Nuclear Society @americannuclear.bsky.social · 20/08/2026

First American Nuclear has announced its plan to make its own reactor fuel. The company has filed a regulatory engagement plan with the NRC for the construction of a Category II HALEU deconversion and fuel fabrication facility. Read more on Nuclear Newswire: www.ans.org/news/2026-08...

FANCO informs NRC of its intent to build HALEU fuel fabrication facility

American Nuclear Society @americannuclear.bsky.social · 19/08/2026

The NRC has issued an environmental assessment and finding of no significant impact to Disa Technologies for company’s use of its HPSA technology to remediate abandoned uranium mine waste at the Mary Ann site in Montrose County, Colo. Read more on Nuclear Newswire: www.ans.org/news/2026-08...

Disa Tech receives EA/FONSI for Mary Ann site, forms Disa Uranium

American Nuclear Society @americannuclear.bsky.social · 18/08/2026

Researchers at INL and MIT have conducted a study of irradiated U-10Zr—uranium alloyed with 10 percent zirconium—across radial regions, providing insights into how the material swells, transfers heat, and interacts with the fuel cladding. Read more on Nuclear Newswire: www.ans.org/news/2026-08...

Study mapping U-10Zr porosity informs metallic fuel design

American Nuclear Society @americannuclear.bsky.social · 17/08/2026

Romania has taken its last reactor off line due to the low water levels of the Danube River, in what is the latest example of how the heat wave in Europe has impacted the temperatures needed to operate nuclear plants across the continent. Read more on Nuclear Newswire: www.ans.org/news/2026-08...

Cernavoda, Paks, Gravelines plants suffer as European heat wave impacts water sources

American Nuclear Society @americannuclear.bsky.social · 12/08/2026

The NRC has proposed a change to how it will approach standards for radiation protections, including the elimination of ALARA. The proposal was published on July 15, and on Monday, the agency held a public meeting on the topic. Read more on Nuclear Newswire: www.ans.org/news/2026-08...

NRC holds public meeting for proposed rule eliminating ALARA

American Nuclear Society @americannuclear.bsky.social · 11/08/2026

A pair of bills were introduced earlier this month in Congress that could modernize the licensing process for uranium enrichment facilities and repeal the law that designated Yucca Mountain as the country’s nuclear waste repository. Read more on Nuclear Newswire: www.ans.org/news/2026-08...

Bills look to boost domestic uranium enrichment, move past Yucca Mountain

American Nuclear Society @americannuclear.bsky.social · 10/08/2026

Centrus Energy will be providing X-energy with enrichment services for LEU and HALEU to support X-energy’s planned deployments of Xe-100 small modular reactors and TRISO-X fuel, according to the terms of a new contract signed by the companies. Read more: www.ans.org/news/2026-08...

Centrus, X-energy sign enrichment contract as TRISO-X expands TX-1 campus

American Nuclear Society @americannuclear.bsky.social · 07/08/2026

Nuclear News has analyzed the professional backgrounds of all 42 NRC commissioners who have served over the agency’s 50-year history to see how the composition of the commission has evolved over time. Read more on Nuclear Newswire: www.ans.org/news/article...

The transformation of the NRC: 50 years of commissioners

American Nuclear Society @americannuclear.bsky.social · 06/08/2026

Oklo’s Groves Isotope Test Reactor became the fifth Department of Energy–authorized reactor to achieve criticality under the agency’s authorization process, it was announced earlier today. Read the full story on Nuclear Newswire: www.ans.org/news/2026-08...

Oklo’s Isotope Test Reactor achieves criticality

American Nuclear Society @americannuclear.bsky.social · 05/08/2026

Today, we are taking a close look at what Oklahoma and Louisiana offer in terms of nuclear sectors that could support new fuel cycle projects—in relation to their recent selection for the Nuclear Lifecycle Innovation Campus program. Read more on Nuclear Newswire: www.ans.org/news/2026-08...

A closer look at the initial NLIC selections—Part 1

American Nuclear Society @americannuclear.bsky.social · 04/08/2026

Last week, Los Alamos National Laboratory announced that its ZiaCore microreactor was brought to zero-power criticality at high temperatures in April through May of this year during four weeks of experiments on the Deimos test bed. Read more on Nuclear Newswire: www.ans.org/news/2026-08...

LANL’s ZiaCore microreactor reaches criticality

American Nuclear Society @americannuclear.bsky.social · 03/08/2026

Last week, ARC Clean Technology announced that it has entered into a Strategic Partnership Project to collaborate with INL on the design, demonstration, and first deployment of the company’s ARC-100, a 100-MWe sodium-cooled fast reactor. Read more on Nuclear Newswire: www.ans.org/news/2026-07...

ARC partners with INL for first reactor deployment

American Nuclear Society @americannuclear.bsky.social · 31/07/2026

With more than six decades as a top-ranked program, the Department of Nuclear Engineering and Engineering Physics at the UW–Madison is hardly slowing down. In fact, NEEP is continuing to grow and develop its faculty and scope. Read more on Nuclear Newswire: www.ans.org/news/article...

UW-Madison: A Midwestern nucleus of fission and fusion

American Nuclear Society @americannuclear.bsky.social · 30/07/2026

The NRC recently held a public meeting with FEMA on emergency preparedness in regard to the restart of the Crane nuclear power plant. Read more on Nuclear Newswire: www.ans.org/news/2026-07...

NRC, FEMA talk emergency preparedness for Crane restart

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American Nuclear Society @americannuclear.bsky.social · 23/07/2026

The public had a rare opportunity Tuesday morning when the U.S. Nuclear Regulatory Commission gathered leaders from several organizations to share updates on their respective high-profile new nuclear projects and initiatives. Read more on Nuclear Newswire: www.ans.org/news/2026-07...

Developers, officials talk advanced reactor outlook with NRC

American Nuclear Society @americannuclear.bsky.social · 21/07/2026

Researchers from Lawrence Livermore National Laboratory and Pacific Fusion have surpassed 3,000 “shots” with Sirius, a four-stage prototype impedance-matched Marx generator of the type that can provide pulsed power to an inertial confinement fusion machine. Read more: www.ans.org/news/2026-07...

LLNL and Pacific Fusion achieve 3,000-shot milestone with Sirius pulsed-power prototype

American Nuclear Society @americannuclear.bsky.social · 20/07/2026

Last week, the NRC held public meetings discussing the details on three proposed rules relating to security requirements, low-level radioactive waste disposal requirements, and fuel cycle and materials licensing. Read more on Nuclear Newswire: www.ans.org/news/2026-07...

NRC public meetings shed light on proposed rules

American Nuclear Society @americannuclear.bsky.social · 17/07/2026

Today, on Nuclear Newswire, Stephanie Morrow and Niav Hughes Green, both of whom are human factors psychologists in the NRC's Office of Nuclear Regulatory Research, write about how recent changes in the nuclear industry are influencing the field of human factors: www.ans.org/news/article...

The human factor in licensing and operating the next generation of nuclear plants

American Nuclear Society @americannuclear.bsky.social · 15/07/2026

Westinghouse has cleared a hurdle in its quest to renew and update the standard DC for the AP1000 with the NRC's approval of an exemption from scheduling requirements that limit when an applicant can apply for a DC renewal. Read more on Nuclear Newswire: www.ans.org/news/2026-07...

NRC approves Westinghouse exemption request for AP1000 DC

American Nuclear Society @americannuclear.bsky.social · 14/07/2026

The NRC proposed removing the ALARA principle from its radiation protection regulations and replacing it with a graded approach. Read the full, in-depth analysis on Nuclear Newswire: www.ans.org/news/2026-07...

A closer look at NRC’s proposed rule eliminating ALARA

American Nuclear Society @americannuclear.bsky.social · 13/07/2026

The NRC's proposed rulemaking on reactor licensing, safety oversight, and siting practices is expansive. When it was unveiled, NRC officials called it the “most comprehensive modernization of reactor licensing in decades." Read more on the proposal on Nuclear Newswire: www.ans.org/news/2026-07...

A closer look at the NRC’s reactor licensing revamp

American Nuclear Society @americannuclear.bsky.social · 10/07/2026

Today's feature, from the August issue of Nuclear News, profiles Mark Peters, the American Nuclear Society's 72nd president. Read about the experiences and plans Peters is bringing to his presidency on Nuclear Newswire: www.ans.org/news/article...

Mark Peters: Building on a strong foundation

American Nuclear Society @americannuclear.bsky.social · 09/07/2026

The Nuclear Regulatory Commission is proposing changes to its environmental review regulations under the National Environmental Policy Act that agency officials call the most significant in decades. Read more on Nuclear Newswire: www.ans.org/news/2026-07...

NEPA review changes coming under NRC proposed rule

American Nuclear Society @americannuclear.bsky.social · 08/07/2026

The Defense Advanced Research Projects Agency (DARPA) has selected seven teams for its Rads to Watts program, starting a competition to design radiovoltaic cells capable of providing power in extreme environments such as deep sea and space. Read more on Nuclear Newswire: www.ans.org/news/2026-07...

Seven projects selected for DARPA’s Rads to Watts

American Nuclear Society @americannuclear.bsky.social · 07/07/2026

On July 4, Aalo Atomics’ critical test reactor—a full-scale, zero-power version of its planned 10-MWe Aalo-X—became the fourth DOE-authorized reactor to achieve criticality in response to Executive Order 14301. Read the full details of that story on Nuclear Newswire: www.ans.org/news/2026-07...

Aalo Atomics achieves criticality on July 4