Tag: nuclear power

Whatever Happened to the 150,000 Tons of Radioactive Waste Stored Under the Atlantic Ocean? 

More than 200,000 barrels of low-level radioactive waste were stored on the floor of the Atlantic Ocean between 1949 and 1982, reports ScienceAlert.

Whatever happened to those barrels?Scientists have descended to the wreckage in a crewed submersible to investigate — and found many of the barrels corroded and degraded, their contents spilling across the seafloor. Surprisingly, this isn’t necessarily a subversion of the original plan… The International Atomic Energy Agency recommends that low-level waste be disposed of in robust containment in isolation for at least a few hundred years — but back in the mid-20th century, the recommendations were a little different. The contemporaneous guidelines recommended that containers needed to reach the seafloor intact and remain sealed only long enough for the short-lived radionuclides to decay. After that, the remaining waste was expected to slowly escape and disperse through the surrounding ocean. Not everything in the barrels would conveniently decay away, however. They contained a radioactive hodgepodge, including cesium-137, plutonium isotopes, and tritium, some of which can persist for thousands of years…

[A] few years ago, nuclear engineer Patrick Chardon and marine geologist Javier Escartín of the French National Center for Scientific Research started to wonder what had become of the dumped waste. That question eventually became NODSSUM — Nuclear Ocean Dump Site Survey Monitoring — an interdisciplinary project bringing together nuclear physics, geology, oceanography, biology, and marine chemistry to find the barrels and investigate what, if anything, they were doing to the surrounding environment…. [T]he barrels also appeared to function as tiny oases on the otherwise sparsely populated sandy seafloor. Anemones had attached themselves to the barrels. Sponges, sea cucumbers, fish, and crustaceans lived around them, with crabs apparently particularly fond of the artificial shelters…

Instruments aboard the ship detected significant signals of cobalt-60 and niobium-94, which the researchers could specifically link to the dumped waste… [Samples are now being analyzed] There is precedent, however, to suggest that even striking levels of radioactivity around a source don’t necessarily spread very far. A recent study of the sunken Soviet submarine Komsomolets found radionuclide levels hundreds of thousands of times above background immediately around the leaking reactor — but those levels dropped sharply within just a few meters as the material dispersed through the seawater. The NODSSUM team similarly found that, despite the significant radioactive signals around the barrels, activity levels weren’t high enough to pose major radiation-protection problems for the scientists handling the samples. [Their three-person submersible] Nautile and the instruments it carried showed no signs of contamination.
The real achievement was mapping the exact location of the barrels. “None of this means the waste is harmless,” the article concludes — but it also doesn’t mean we’re about to be overrun by radioactive crabs.”

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‘It’s been too long – Trump’s still in power’: Texts reveal wife of nuclear scientist accused of selling foreign power submarine secrets wanted to flee US due to TRUMP and not because she feared arrest

A teacher accused of selling nuclear submarine secrets with her Navy engineer husband only wanted to flee the country because she hated Donald Trump, a court has been told.   

Lawyers for Diana Toebbe, 45, claim she only wanted to exit the US because of her disdain for the former president, and not because she was worried about getting caught for allegedly trying to sell the classified information.

They made the claim in court papers filed Wednesday, complete with an exchange of messages said to have taken place between Toebbe and her husband Jonathan in March 2019. 

Those texts also allegedly saw Diana Toebbe discuss fleeing to France. The country they tried to sell the secrets to has never been mentioned, and is said to be a US ally, although officials told NBC News that France was not the country targeted. 

Diana begins: ‘We need to get out.’ Jonathan appears bored with her statement, answering: ‘*sigh* where? To do what?’

His wife then says: ‘To anywhere. To do something else. To teach in international schools. To take Macron up on his offer to harbor scientific refugees.’

In an apparent attempt to calm Diana, Jonathan says: ‘Biden/Warren will curb stomp Trump/Pence.’

But Diana was undeterred, and replied: ‘WE NEED TO GET OUT. Hilary (sic) was going to curb stomp trump. I’m done.’ 

Jonathan touted then then-unpublished Mueller Report into alleged collusion between Team Trump and Russia, which ended up posing no threat to Trump’s presidency.

He wrote: ‘The Mueller report is coming real soon.’

But Diana remained angry, answering: ‘It’s been too long. Nothing has changed. He’s still in power.’ 

Jonathan replied: ‘Nothing in government moves that fast — believe me, I speak from personal experience.’

Diana then said: ‘(Trump crony) Manafort got a slap on the wrist. It’s a signal that the entire system is rigged.’

The chat then turned to escaping, with Jonathan saying: ‘We’ve got passports, and some savings. In a real pinch we can flee quickly.’

And Diana answered: ‘Right. Let’s go sooner than later.’ 

The pair were arrested in October and charged with selling secret information about nuclear submarines to an undercover FBI agent who posed as an operative for a foreign country.

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Ukrainian Drone Hits Russian Nuclear Plant Days After Trump Energy Truce Plea

President Trump raised eyebrows when on Monday he declared that Russia and Ukraine had agreed to stop attacking each other’s oil and energy infrastructure, amid global crude and diesel supply problems related mostly to the Hormuz Strait crisis.

But then within days later it became clear that the default reality on the ground has persisted, as energy sites continue to get pummeled. And it’s not only refineries and ports which have continued getting hit, but as of Thursday morning a Russian nuclear plant was apparently targeted in a Ukrainian drone attack.

A drone hit the cooling tower of a reactor unit at Russia’s Kursk Nuclear Power Plant, the International Atomic Energy Agency has announced Friday.

The unit was operating at the time, but its operating mode was unchanged and no fire broke out. 

The UN agency’s director Rafael Grossi declared in a statement that “all attacks on nuclear facilities are unacceptable as they could endanger nuclear safety and security, irrespective of where they occur.”

He urged “maximum military restraint to prevent the risk of a nuclear accident” – which remains a top dangerous reality of the battlefield in the context of the Ukraine war.

In early July the same site had suffered a prior drone attack from Ukraine. One industry source reviews:

The Kursk Nuclear Power Plant (Kursk NPP) has been the target of several military actions and drone strikes. The most notable incident occurred in August 2025 when a drone detonated and damaged an auxiliary transformer, sparking a structural fire that had to be contained by emergency teams. The International Atomic Energy Agency (IAEA) monitored the event and confirmed that radiation levels remained normal.

The Kremlin going back to 2024 has accused Ukrainian forces of seeking a ‘provocation’ at the Kursk nuclear plant.

The Kursk Nuclear Power Plant (NPP) lies about 25 miles west of the city of Kursk, which is the administrative center of the oblast by the same name.

The plant continues to be a major electricity producer for Russia. Kremlin officials have long voiced alarm that Ukraine may seek to use some major provocation to draw its backers in NATO deeper into the conflict.

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Trump sends U.S.-Saudi civilian nuclear deal to Congress, tied to Abraham Accords

The Trump administration has reportedly sent a civilian nuclear agreement signed last month with Saudi Arabia to Congress, kicking off a lengthy review process.

Per media reports using unnamed sources, the agreement was formally sent to Congress on Monday, setting up a months-long review period by the Senate Foreign Relations and House Foreign Affairs Committees.

According to the U.S. Department of Energy (DOE), the civilian nuclear pact will:

  • “Expand American nuclear technology exports
  • Create high-paying U.S. jobs and long-term economic growth
  • Strengthen America’s energy and national security posture
  • Reinforce global nonproliferation standards
  • Deepen the strategic partnership between the United States and the Kingdom of Saudi Arabia”

The Wall Street Journal reported on the deal being sent to Congress on Tuesday.

The agreement falls under Section 123 of the Atomic Energy Act of 1954, which provides a review period for Congress totaling 90 days of continuous session. However, this includes a period of 30 days of continuous session for the president to consult with the committees. It is unclear if this process has already been completed.

An official told ABC News that the deal remains contingent upon Saudi Arabia joining the Abraham Accords.

On July 23rd, a day after the deal was signed, Trump announced that the agreement would be subject to the kingdom joining the accords, which would require the majority-Muslim country to normalize relations with Israel.

Saudi Arabia has reportedly opposed normalizing relations with Israel without the creation of an independent Palestinian state.

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Portable 1MW Kaleidos Microreactor Secures Critical Nuclear Fuel Deal Through 2030s

Radiant has secured a long-term source of nuclear fuel for its Kaleidos microreactor, removing a potential supply hurdle as the company prepares the system for deployment.

Standard Nuclear will fabricate TRISO fuel for Radiant under an agreement covering planned Kaleidos deployments through the early 2030s. The deal gives the reactor developer a dedicated fuel supplier as its program moves toward full-scale testing and production.

Fuel availability remains a critical challenge for advanced nuclear developers. A reactor cannot reach customers without a reliable source of qualified fuel. Radiant is betting that greater control over its supply chain will help avoid that problem.

Fuel supply secured

Standard Nuclear will produce fuel specifically for the Kaleidos reactor. TRISO fuel consists of uranium particles protected by several layers of ceramic and carbon materials. Advanced reactor developers have adopted the technology for its ability to contain radioactive materials within each fuel particle.

Kaleidos is a 1-megawatt microreactor designed for transport to customer sites. Each unit can operate for up to five years before refueling.

Tori Shivanandan, Radiant’s president and COO, said securing fuel represents an important step toward larger-scale deployment. “Securing the fuel supply chain is a strategic advantage to deploying at scale,” she said.

Radiant also plans to control the reactor’s broader fuel cycle. Customers would not handle fresh or spent fuel at their locations. The company instead plans to manage fueling, refueling, and storage through its own facilities.

Reactor testing advances

Kaleidos is now undergoing full-scale testing at Idaho National Laboratory’s DOME facility. The Department of Energy selected Radiant through a competitive process and granted it exclusive access to the facility for one year.

Engineers will test the reactor at full scale and full power during extended runs. The campaign will use the same reactor design and fuel specifications intended for customer deployments.

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Romania Forced to Shut Down Its Only Nuclear Power Plant as the Water Levels in the Danube River Drop More

First – the wildfires; now – the droughts.

We have been reporting on how the hot summer season in Europe is causing all kinds of disturbances – and one of the most consequential is the drought of many important rivers of the continent.

The mythic ‘Blue Danube’, for example, is so low that it’s causing real problems in the energy system of both Hungary and Romania.

Today (13), it arises that Romania has been forced to completely shut down its only nuclear power station.

BBC reported:

“The Cernavodă plant, where two reactors produce about 20% of Romania’s electricity, is not expected to be restarted within the next 10 days.

Earlier this week, authorities tried to increase the water flow to the plant – which uses the Danube for cooling – by sinking barges loaded with rocks in the river.

Neighboring Hungary has so far avoided a shutdown of its only nuclear plant in Paks, which also uses the Danube. The waters in Europe’s second-longest river have fallen to the lowest levels for 30 years in several countries.”

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UAE Hails ‘Historic Milestone’ As Fourth And Final Reactor Begins Commercial Operation

The fourth and final unit at the Barakah nuclear power station in the United Arab Emirates has begun commercial operation, marking full delivery of a project that will generate 25% of the kingdom’s electricity needs, Emirates Nuclear Energy Corporation said on Thursday (5 September).

Enec, which is responsible for the deployment and ownership of nuclear energy plants in the UAE, said the “historic milestone” of full operation for all four units at the station means Barakah is now generating 40 TWh of electricity per year, nearly the equivalent of the annual electricity consumption of New Zealand.

“This clean and carbon-free energy is enough to power 16 million EVs annually,” Enec said. “This represents the largest decarbonisation effort in the UAE and the region, positioning the country ahead of its 2030 climate commitments.”

Construction of Barakah, the first commercial nuclear power station to operate in the Arab World, began in 2012. The first of its four South Korea-supplied APR1400 plants began commercial operation in 2021.

Enec managing director and chief executive officer Mohamed Al Hammadi said Barakah, on the Persian Gulf coast west of the city of Abu Dhabi, offers “a new model for the world” and demonstrates that nuclear energy is bankable and can be delivered efficiently.

He said the units came online within eight years from first concrete pour to fuel load and achieved a 40% improvement in schedule from start of operational readiness to commercial operations for Unit 4 compared to Unit 1.

Speaking at the World Nuclear Symposium in London on Thursday, Al Hammadi said growth in energy demand is “serious” and the nuclear industry has two options: do nothing and continue as a small industry, or “if we act and tap into this demand, we can create change”.

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US Lays Groundwork For Approving Offshore Nuclear Power Projects

The U.S. federal government has outlined a preliminary framework to oversee the approval of offshore nuclear power projects, advancing President Donald Trump’s agenda to safely unleash domestic energy production and reestablish the United States as the global leader in nuclear energy.

“While no commercial deployment on the Outer Continental Shelf is planned or approved at this time, it could greatly strengthen America’s energy security in the future,” Matt Giacona, acting director of the Interior Department’s Marine Minerals Administration, said in announcing the initiative on July 22.

The Marine Minerals Administration and the Nuclear Regulatory Commission (NRC) released an agreement on Wednesday that lays the groundwork for a more “detailed cooperative framework” outlining jurisdictional oversight for development of offshore nuclear power projects in “a safe and environmentally responsible way.”

The memorandum of understanding between the Marine Minerals Administration (MMA), which oversees energy projects in federal waters of the outer continental shelf, and the federal government’s independent civilian nuclear regulator will “foster cooperation” and “allow shared technical expertise to ensure reviews are efficient and transparent,” the NRC said in a statement.

Director of the NRC’s Office of Advanced Reactors Jeremy Bowen said the agreement “creates a clear framework for how our agencies will work together and ensures our processes remain efficient, transparent, and technically robust.”

“The agreement will also allow MMA and the Nuclear Regulatory Commission to responsibly respond to industry requests, supporting novel offshore energy production,” the MMA added.

The MMA also oversees offshore development such as seabed mining and space launch infrastructure.

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US, Japan, Korea agree to accelerate small modular reactor deployment in Indo-Pacific where data centers are expanding

Nuclear-powered data centers built in certain countries could provide foreign nations access to data and compute via digital embassies: perspective

The United States, Japan, and South Korea sign a trilateral memorandum of cooperation to accelearte small modular reactor (SMR) deployments in other countries, starting with the Indo-Pacific — a region that is rapidly expanding AI  data center construction. 

Today, representatives from the three countries signed the MOC at the sidelines of the NATO Summit in Ankara, Turkey as a means to “foster fleet deployment models that de-risk project development, achieve economies of scale, catalyze private investment, streamline licensing processes, and optimize supply chains.”

“A coordinated trilateral approach positions American, Japanese, and Korean firms to provide partners in the region with more competitive alternatives to meet their growing energy demands and to uphold the highest standards of nuclear safety, security, and nonproliferation as new reactor technology increasingly comes online”US State Department, The United States, Japan, and the Republic of Korea Sign a Trilateral Memorandum of Cooperation on Small Modular Reactor Deployments in Other Countries, July 2026

Nowhere in the US State Department press release does it mention that the SMRs would be used for powering AI data centers.

However, the Indo-Pacific is a region teeming with data center expansion in countries like Indonesia, Japan, Malaysia, and of course, China, which dominates the region with approximately 450 facilities.

According to a 2024 report from the Italian Institute for International Political Studies, data centers are “The Indo-Pacific’s Hottest Trend.”

Meanwhile, small Modular Reactors have been put forth as a potential means to generate between 50MW to 300MW of nuclear power, with applications that include data centers, according to the Idaho National Laboratory. 

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Trump Greenlights 30-Year U.S.-Saudi Nuclear Cooperation Deal, Positioning American Companies to Lead Saudi Civilian Nuclear Development

President Donald Trump has formally approved a landmark 30-year nuclear cooperation agreement with Saudi Arabia, clearing the way for U.S. support of the kingdom’s civilian nuclear energy program and deepening one of Washington’s most important strategic partnerships in the Middle East.

The agreement, valued at tens of billions of dollars, positions American companies as the primary partners in developing Saudi Arabia’s nuclear infrastructure while limiting opportunities for competitors such as China and Russia.

According to U.S. officials and multiple reports, the accord could also allow Saudi Arabia to enrich uranium on its own territory under a civilian nuclear framework—a provision that has already sparked debate among lawmakers and nonproliferation experts.

President Trump reportedly approved the agreement late last week. It is expected to be formally signed on Wednesday by U.S. Energy Secretary Chris Wright and Saudi Energy Minister Prince Abdulaziz bin Salman.

The pact builds on negotiations completed in late 2025 and follows commitments made during Crown Prince Mohammed bin Salman’s visit to Washington. It establishes the legal framework for U.S. assistance in constructing nuclear power plants, developing supporting infrastructure, and transferring civilian nuclear technology to the kingdom.

Supporters describe the agreement as a major geopolitical victory that reinforces the U.S.-Saudi alliance while ensuring that American companies—not Chinese or Russian state-backed firms—lead one of the world’s largest emerging nuclear energy projects.

The most controversial aspect of the agreement is its reported allowance for Saudi Arabia to pursue uranium enrichment within its civilian nuclear program.

Previous U.S. nuclear cooperation agreements often required partner nations to permanently renounce uranium enrichment and plutonium reprocessing—the so-called “gold standard” of nonproliferation. Reports indicate that this agreement adopts a more flexible approach, incorporating safeguards designed to prevent military use while stopping short of requiring the full implementation of the International Atomic Energy Agency’s (IAEA) Additional Protocol, which provides the agency with broader inspection authority.

Administration officials maintain that the agreement includes sufficient protections to ensure the program remains exclusively peaceful. Critics, however, argue that relaxing long-standing U.S. standards could weaken global nonproliferation efforts.

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