Nuclear News

Published since 1959, Nuclear News is recognized worldwide as the flagship trade publication for the nuclear community. News reports cover plant operations, maintenance and security; policy and legislation; international developments; waste management and fuel; and business and contract award news.


Custom equipment lets ORNL scale up molten salt investigations

August 8, 2024, 9:30AMNuclear News
A glass test cell that was fabricated to visualize noble gas behavior in a stagnant molten salt column. (Photo: ORNL)

Transparency is one advantage of certain molten salts that could serve as both a coolant and fuel carrier in an advanced reactor. For scientists studying molten salt chemistry and behavior at the laboratory scale, it helps if the test vessel is transparent too. Now, Oak Ridge National Laboratory has created a custom glass test cell with a 1-liter capacity to observe how gases move within a column of molten salt, the Department of Energy announced August 5.

DARPA wants to bypass the thermal middleman in nuclear power systems

August 7, 2024, 12:00PMNuclear News
AI-generated concept image. (Image: DARPA)

Nuclear power already has an energy density advantage over other sources of thermal electricity generation. But what if nuclear generation didn’t require a steam turbine? What if the radiation from a reactor was less a problem to be managed and more a source of energy? And what if an energy conversion technology could scale to fit nuclear power systems ranging from miniature batteries to the grid? The Defense Advanced Research Projects Agency (DARPA) Defense Sciences Office (DSO) is asking these types of questions in a request for information on High Power Direct Energy Conversion from Nuclear Power Systems, released August 1.

Pew shows majority support for U.S. nuclear

August 7, 2024, 9:30AMNuclear News

A number of surveys and polls, such as Bisconti Research and University of Michigan surveys, have found steady or growing support for nuclear energy among Americans during the past several years. The Pew Research Center on Aug. 5 reported its nuclear-related findings from its survey conducted in May with a representative sample of U.S. adults. The results show 56 percent of respondents favor the construction of additional nuclear power plants in the United States.

That level of support is similar to last year’s findings (57 percent support) and is up substantially from the 43 percent, 50 percent, and 54 percent that Pew Research reported in 2020, 2021, and 2022, respectively.

Singapore, U.S. sign 123 Agreement

August 7, 2024, 6:53AMNuclear News
U.S. secretary of state Antony Blinken (left) with Singapore foreign minister Vivian Balakrishnan. (Photo: X/@SecBlinken)

The United States and Singapore have signed a civil nuclear cooperation agreement, commonly known as a 123 Agreement.

U.S. secretary of state Antony Blinken and Singapore’s minister of foreign affairs Vivian Balakrishan met on July 31 to formalize the agreement, which outlines a comprehensive framework for peaceful nuclear collaboration between the two nations based on a mutual commitment to nuclear nonproliferation.

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Making AI fit for purpose: DOE-led applications in energy and nuclear research

August 5, 2024, 12:00PMNuclear News
The ALCF AI Testbed includes the AI systems represented in this collage: Cerebras, Graphcore, Groq, and SambaNova. (Image: Argonne National Laboratory)

Generative artificial intelligence paired with advanced diagnostic tools could detect potential problems in nuclear power plants and deliver a straightforward explanation to operators in real time. That’s the premise of research out of the Department of Energy’s Argonne National Laboratory, and just one example of the DOE’s increasing exploration of AI applications in nuclear science and technology research. Training and restraining novel AI systems take expertise and data, and the DOE has access to both. According to a flurry of reports and announcements in recent months, the DOE is setting out its plans to ensure the United States can use AI to its advantage to enhance energy security and national security.

IAEA: Cooling pond water levels decreasing at Ukraine nuclear plant

August 5, 2024, 9:30AMNuclear News

The water level in Ukraine’s Zaporizhzhia nuclear power plant cooling pond continues to decrease, creating a serious safety threat.

“If this trend continues, ZNPP staff confirmed that it will soon become challenging to pump water from the pond. Maintaining the level of the pond is made more difficult by the hot summer weather,” said Rafael Mariano Grossi, director general of the International Atomic Energy Agency, in an update issued August 2.

The JT-60SA project

August 2, 2024, 3:01PMNuclear NewsTakahiro Suzuki
Fig. 1. A photograph (left) and schematic figure (right) of JT-60SA. (Source: Naka Institute)

JT-60SA (Japan Torus-60 Super Advanced) is the world’s largest superconducting tokamak device. Its goal is the earlier realization of fusion energy (see Fig. 1). Fusion is the energy that powers the Sun, and just 1 gram of deuterium-tritium (D-T) fuel produces enormous energy—the equivalent of 8 tons of crude oil.

Last fall, the JT-60SA project announced an important milestone: the achievement of the tokamak’s first plasma. This article describes the objectives of the JT-60SA project, achievements in the operation campaign for the first plasma, and next steps.

Constellation accepting applications for 2024 Energy to Educate grant program

August 2, 2024, 12:00PMNuclear News

Constellation is taking applications for its 2024 E2 Energy to Educate grant program, which provides funding for student projects focusing on energy innovation.

Educators and students in grades 6–12 can apply for program grants of up to $25,000, and those in two- and four-year colleges can apply for grants of up to $50,000.

Navajo Nation tests tribal law banning uranium transport

August 2, 2024, 9:31AMNuclear News

Members of the Navajo Nation are challenging the legality of uranium ore transport from a mine in Arizona across tribal lands to a processing facility in Utah.

A 2012 law bans uranium transport on the vast Navajo Nation land, which covers portions of Arizona, New Mexico, and Utah. Navajo Nation president Buu Nygren issued an executive order on Wednesday saying that there must be an agreement before uranium is transported through the reservation.

Subsequent license renewal critical to meeting U.S. climate goals

August 2, 2024, 7:01AMNuclear NewsDoug Lawrence

Doug Lawrence

As the United States intensifies its efforts to combat climate change and transition to a low-carbon energy future, the role of nuclear energy has never been more critical.

One key strategy in this transition is the subsequent license renewal (SLR) of our existing nuclear power plants, allowing them to operate for up to 80 years. This extension brings several significant benefits.

Continued low-carbon energy production—By extending the life of existing nuclear power plants, we ensure a steady supply of low-carbon energy, reducing our reliance on fossil fuels and helping meet our nation’s emission reduction targets. Given that nuclear power currently provides nearly 20 percent of the U.S. electricity supply and more than half of its low-carbon electricity, maintaining this capacity is vital for a sustainable energy future.

TVA exploring advanced nuclear plans at Clinch River, Bellefonte

August 1, 2024, 12:00PMNuclear News
Bellefonte nuclear power plant. (Photo: TVA)

The Tennessee Valley Authority this week discussed the potential for new nuclear technology at its sites during its second-quarter earnings call.

TVA and GE Hitachi signed an agreement in 2022 to develop and deploy a BWRX-300 small modular reactor at the Clinch River site near Oak Ridge, Tenn.

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The U.S. and U.K. are both investing in HALEU. How do the programs compare?

August 1, 2024, 9:30AMNuclear News
Urenco’s Capenhurst enrichment site in the U.K. (Photo: Urenco)

A plan to build up a high-assay low-enriched uranium fuel cycle in the United Kingdom to support the deployment of advanced reactors is still in place after the Labour party was voted to power on July 4, bringing 14 years of conservative government to an end. A competitive solicitation for grant funding to build a commercial-scale HALEU deconversion facility opened days before the election, and the support of the new government was confirmed by a set of updates on July 19. But what does the U.K. HALEU program entail, and how does it differ from the U.S. HALEU Availability Program?

Rolls-Royce SMR earns second U.K. assessment

July 31, 2024, 9:30AMNuclear News
Rendition of a Rolls-Royce SMR site.(Image: Rolls-Royce)

The small modular reactor design from Rolls-Royce has cleared step two of the United Kingdom’s generic design assessment (GDA) and is moving to the third and final step.

The company announced its progress and lauded “Rolls-Royce SMR’s position ahead of any other SMR in Europe” in a July 30 press release. Rolls-Royce SMR touts its ability to deliver new nuclear power based on proven technology, providing a “factory-built” power station to provide enough energy for a million homes for a 60-year stretch.

Construction begins on Kairos’s fluoride salt–cooled test reactor

July 30, 2024, 3:00PMNuclear News
Workers begin construction at the Hermes site in Oak Ridge, Tenn. (Photo: Kairos Power)

Earlier today, on a site in Oak Ridge, Tenn., that was formerly home to the K-33 Gaseous Diffusion Plant, Kairos Power marked the start of construction on its low-power demonstration reactor. Named Hermes, the 35-MWt test reactor claims status as the first Gen IV reactor to be approved for construction by the Nuclear Regulatory Commission and the first non–light water reactor to be permitted in the United States in more than 50 years.

U.K., Japan step up progress toward fusion power demonstrations

July 30, 2024, 9:30AMNuclear News
A screengrab from a video released by the STEP program on July 23 illustrating the future home of the prototype fusion power plant. (Image: UKAEA/STEP)

Japan’s recent moves to boost fusion power in the nation’s energy plan and accelerate the timeline for a prototype fusion power plant come in response to increased global attention on fusion energy. Even as ITER faces delays, more than 40 private fusion developers are pursuing different technologies and competing for attention. And so are other countries, including the United Kingdom, which announced its plans for a fusion pilot plant back in 2019. Fusion companies and nations alike are responding to a growing sense that there is a race—or at least collective momentum—to commercialize fusion energy.

New company has big nuclear plans

July 29, 2024, 3:03PMNuclear News

The recent start-up the Nuclear Company announced plans this month to deploy a series of nuclear reactors by the mid-2030s using a “design-once, build-many approach.”

The venture capital–funded firm wants to use proven, licensed technology and target sites that already have some level of licensing approval from the Nuclear Regulatory Commission to build enough reactors to produce 6 gigawatts of electricity across the country.