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Former SpaceX Engineer Launches Startup to End U.S. Dependency on Russian Uranium Fuel

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Scott Nolan, a former SpaceX engineer, has founded General Matter, a San Francisco-based startup aiming to break Russia’s monopoly on high-assay low-enriched uranium (HALEU) and produce it at scale in the United States. The company plans to meet the growing demand for HALEU, a type of uranium enriched between 5% and 20%, which is essential for next-generation nuclear reactors, such as small modular reactors (SMRs), expected to be pivotal by the 2030s.

Aims to Revolutionize U.S. Nuclear Fuel Production

HALEU is key for advanced reactors, offering more efficient energy production than the standard uranium fuel used in current reactors. Companies like Amazon are exploring the use of such reactors to power data centers, underscoring the fuel’s importance. Nolan’s vision for General Matter includes not only ramping up domestic HALEU production but also significantly reducing its costs.

Nolan aims to halve HALEU enrichment costs in the long term, which are currently elusive but estimated between $25,000 and $35,000 per kilogram. This price is largely driven by Russian production, creating vulnerabilities for U.S. energy security.

U.S. Government Support and Industry Competition

The U.S. Department of Energy (DOE) awarded initial contracts to General Matter and three other companies in October as part of a push to kickstart domestic HALEU production. These contracts are part of a $2.7 billion initiative, pending Congressional approval. However, General Matter faces stiff competition from established companies like Urenco USA, Orano USA, and Centrus Energy, which already have infrastructure and expertise in uranium production.

Challenges and Controversy

While HALEU holds potential for revolutionizing the nuclear energy sector, critics have raised concerns about its enriched levels, fearing potential military uses. Nolan emphasized that his company would rely on regulators to set safe enrichment levels, likely between 10% and 12%.

SpaceX-Inspired Approach to Technology

Nolan’s approach to HALEU production takes inspiration from his time at SpaceX, where technological innovation and cost-cutting were central. At General Matter, he plans to combine nuclear industry experience with the agility of the technology sector to rethink uranium production methods. The startup’s approach could include novel techniques like lasers, in addition to the more traditional high-speed centrifuges used for uranium enrichment.

Thermal Batteries: A Cheaper, Scalable Alternative to Lithium-Ion for Energy Storage

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Thermal batteries are emerging as a game-changing solution for renewable energy storage, offering a cost-effective and scalable alternative to traditional lithium-ion batteries. These systems have the potential to revolutionize how industries store and utilize renewable energy.

“Intermittent wind and solar power are now the cheapest forms of energy in human history, and energy storage technologies are critical to harnessing this,” said John O’Donnell, founder and chief innovation officer of Rondo Energy. “Heat batteries are a fundamentally new way of storing energy at a fraction of the cost.”

How Thermal Batteries Work

Unlike lithium-ion batteries that store energy as electricity, thermal batteries convert excess electricity into heat, stored in materials like bricks or graphite. These materials can reach extreme temperatures, often exceeding 3,000°F.

When energy is needed, the stored heat is released, making thermal batteries particularly suitable for energy-intensive industrial processes such as steel, cement, and chemical manufacturing.

“What a thermal battery does is allow you to soak up clean, inexpensive electrons from wind and solar, store them as heat, and deliver that energy later to industrial customers,” explained Justin Briggs, COO of Antora Energy.

Cost and Environmental Benefits

Thermal batteries stand out for their affordability and efficiency. For example, Rondo Energy’s systems use simple materials like clay bricks, which are far cheaper and more energy-dense than lithium-ion batteries.

“A pound of brick stores more energy than a pound of lithium-ion battery, at less than 10% of the cost,” O’Donnell noted.

Rondo Energy has already deployed its first commercial thermal battery at Calgren Renewable Fuels in California’s Central Valley. The system stores solar energy during the day and delivers high-temperature heat continuously, around the clock.

By scaling production to 90 gigawatt-hours annually by 2027, Rondo Energy estimates its technology could prevent 12 million tons of carbon dioxide emissions each year. This impact is comparable to removing 4 million gas-powered cars from the roads.

Challenges Ahead

Despite their promise, thermal batteries face significant challenges. High upfront costs and a lack of awareness among industrial users remain key obstacles to broader adoption.

“The biggest hurdle is educating the market that this technology is available,” O’Donnell said.

However, with increasing demand for clean and cost-effective energy storage, thermal batteries are well-positioned to play a major role in reducing industrial carbon footprints and supporting the transition to renewable energy.