Articles tagged with "small-modular-reactors"
Amazon bets on modular nuclear reactors to scale carbon-free power
Amazon is advancing its sustainability and carbon-free energy goals by investing in a new small modular reactor (SMR) facility called the Cascade Advanced Energy Facility in Washington state. In partnership with Energy Northwest and SMR developer X-energy, Amazon plans to build up to 12 next-generation Xe-100 reactors near the Columbia Generating Station in Richland. These reactors, smaller and safer than traditional nuclear plants, offer faster construction, lower costs, and flexible deployment. The initial capacity of the facility will be 320 megawatts, with potential expansion to 960 MW, aiming to power Amazon’s operations and support the growing energy demands of artificial intelligence and digital technologies. Construction is expected to begin by the end of the decade, with operations targeted for the 2030s. The project is not only a significant step for Amazon’s carbon reduction efforts but also a boost to the local economy, creating over 1,000 construction jobs and more than 100 permanent positions in engineering and nuclear operations. To support
energymodular-nuclear-reactorscarbon-free-energysmall-modular-reactorsclean-energy-technologynuclear-powersustainable-energyMultiple small nuclear reactors to power US Army bases within a year
The U.S. Army, in partnership with the Department of Energy, has announced the Janus program to deploy multiple small nuclear reactors at military bases, particularly in the Pacific region, within the next year. These next-generation microreactors aim to provide resilient, secure, and uninterrupted power to national defense installations, reducing reliance on vulnerable fossil fuel supply chains such as diesel generators. The reactors are designed to operate for decades without refueling or servicing, enhancing energy security and operational readiness for forward-deployed forces. Janus builds on earlier efforts like Project Pele, which focuses on mobile, transportable microreactors using advanced fourth-generation nuclear technology, with operational reactors expected by 2026. The program aligns with Executive Order 14299, mandating the deployment of Army-regulated nuclear reactors at domestic military installations by 2028. The Army will lead Janus with support from the Department of Energy, emphasizing safety, oversight, and integration with the full nuclear fuel cycle to strengthen defense and industrial capabilities.
energynuclear-powersmall-modular-reactorsmilitary-energy-solutionsmicroreactorsUS-Army-energyadvanced-nuclear-technology2-metric-ton nuclear fuel boost planned under US-French collab
The article reports on a new US-French collaboration between Standard Nuclear Inc. and Framatome to form a joint venture, Standard Nuclear-Framatome (SNF), aimed at producing commercial-scale quantities of Tri-structural Isotropic (TRISO) nuclear fuel. TRISO fuel, known for its exceptional safety and durability at extreme temperatures, is ideal for advanced reactors such as small modular reactors (SMRs) and micro-reactors. The venture plans to begin manufacturing at Framatome’s Richland, Washington facility in 2027, pending regulatory approval from the U.S. Nuclear Regulatory Commission, with an initial production target of 2 metric tons of TRISO fuel annually. This represents a significant increase in capacity to support the growing advanced reactor market in the US and globally. The partnership leverages Standard Nuclear’s specialized manufacturing capabilities alongside Framatome’s extensive fuel cycle expertise and infrastructure, overseen by a joint board of directors. Both companies emphasize the strategic importance of establishing a robust domestic TR
energynuclear-fuelTRISOadvanced-reactorssmall-modular-reactorsnuclear-collaborationreactor-safetySmall modular reactors designed to drive carbon-free ammonia
Ammonia production, a critical process for global fertilizer supply, is highly energy-intensive and currently relies heavily on natural gas steam reforming, contributing about 1.2 percent of global greenhouse gas emissions and 2 percent of fossil energy use. With rising demand driven by population growth, reducing the carbon footprint of ammonia manufacturing is urgent. Researchers in the U.S., led by Utah State University and funded by the Department of Energy’s Nuclear Energy University Program, are investigating the use of small modular nuclear reactors (SMRs) to power carbon-free ammonia plants. SMRs offer reliable baseload power and heat, can be located near consumption centers to reduce transportation emissions, and enable co-location of hydrogen and nitrogen production with ammonia synthesis, improving efficiency and lowering costs. The project focuses on two reference designs using the NuScale SMR (250 MW thermal, 77 MW electric) as the energy source, with one design using freshwater and the other incorporating desalination for seawater or brackish water. Hydrogen
energysmall-modular-reactorscarbon-free-ammonianuclear-energyhydrogen-productionelectrolysissustainable-energyCanada’s National Projects: Betting on Nuclear & LNG While the Future Waits - CleanTechnica
Canada has recently designated five megaprojects as being in the national interest, with a heavy financial and climate commitment extending over decades. The approved projects are dominated by nuclear and LNG developments, which together account for nearly 90% of the adjusted projected spending—over CA$52 billion out of a total CA$58.8 billion when factoring in typical cost overruns based on historical data. Using Bent Flyvbjerg’s reference class forecasting, the article highlights that such megaprojects frequently experience significant delays, cost overruns (often exceeding 50%), and under-deliver on promised benefits. This pattern is evident in Canada’s nuclear initiative, particularly the Darlington small modular reactor (SMR) project, which, despite its ambition to be a G7 first, carries high risk due to its first-of-a-kind nature and historical nuclear project challenges. The LNG Canada Phase 2 project, estimated at CA$20 billion, also raises concerns. While proponents tout its efficiency and use of
energynuclear-energyLNGsmall-modular-reactorsclean-energy-projectsCanada-energy-policyenergy-infrastructureSmall Modular Reactors and the Big Questions of Cost & Waste - CleanTechnica
The article from CleanTechnica critically examines the claims surrounding Small Modular Reactors (SMRs) as a transformative technology for nuclear energy and decarbonization. While SMRs are promoted as cheaper, safer, faster to build, and easier to finance than traditional large reactors, a recent study published in Progress in Nuclear Energy challenges these assertions. Authored by experts Philseo Kim and Allison Macfarlane, the study analyzes both economic and waste management aspects of SMRs. It finds significant uncertainties and structural challenges, particularly highlighting that SMRs may have higher levelized costs of electricity (LCOE) than anticipated, often exceeding $100 per MWh, due largely to the loss of economies of scale inherent in smaller reactors. Real-world projects, such as NuScale’s canceled flagship plant, underscore these cost overruns. On the waste front, the study reveals even more concerning issues. SMRs could produce two to thirty times more spent fuel per unit of energy compared to conventional reactors, with smaller
energynuclear-energysmall-modular-reactorsSMRsnuclear-wastedecarbonizationenergy-policyEurope bets on lead-cooled nuclear reactors to decarbonize sea vessels
A Swiss technology company, ABB, and Swedish nuclear firm Blykalla have expanded their partnership to accelerate the deployment of small modular lead-cooled nuclear reactors (SMRs) for large maritime vessels, aiming to decarbonize the shipping industry responsible for about 3% of global greenhouse gas emissions. Their collaboration focuses on integrating Blykalla’s Generation IV Swedish Advanced Lead Reactor (SEALER)—a 55 MWe passively safe, lead-cooled SMR originally designed for remote Arctic applications—into commercial deep-sea ships. The SEALER reactor’s design emphasizes inherent safety, high thermal efficiency, and minimal operator oversight, making it well-suited for maritime propulsion. ABB will leverage its expertise in system integration, automation, and power distribution to adapt the SMR technology for shipboard use, ensuring seamless integration with onboard power grids, control systems, and propulsion architectures. The partnership includes plans for feasibility studies, regulatory engagement, and classification society collaboration to prepare for deployment. This initiative aligns
energynuclear-reactorssmall-modular-reactorsmaritime-energyclean-energydecarbonizationshipping-industryUS nuclear firm to build 15 MW reactors a mile underground by 2026
Deep Fission, a US nuclear startup, has secured $30 million through a reverse merger with Surfside Acquisition Inc. to develop and deploy 15-megawatt mini nuclear reactors buried a mile underground. These reactors, designed to fit into 30-inch diameter boreholes, use pressurized water cooling and leverage proven technologies from nuclear submarines and traditional plants. By situating the reactors deep in bedrock, the company aims to enhance safety through natural shielding, reduce surface footprint, and protect against external threats. The design incorporates elements from nuclear, oil and gas, and geothermal industries, using off-the-shelf parts and low-enriched uranium to simplify supply chains. Deep Fission projects electricity costs of 5 to 7 cents per kilowatt-hour for its commercial systems. The company plans to complete its first pilot reactor by July 2026, supported by a Department of Energy (DOE) Reactor Pilot Program that aims to streamline permitting and accelerate deployment. Deep Fission has also signed a deal
energynuclear-energyunderground-reactorssmall-modular-reactorsclean-energyAI-data-centersDepartment-of-EnergyUS team funded to explore nuclear fuel for space, remote reactors
Scientists at Missouri University of Science and Technology (Missouri S&T) are collaborating with Oak Ridge National Laboratory on a Department of Energy-funded project to study the performance of high-assay low-enriched uranium (HALEU) fuel in small modular and microreactors. Led by Dr. Ayodeji Alajo, the research focuses on HALEU fuel enriched between 5 and 20 percent uranium-235, which is higher than the fuel used in current commercial reactors but lower than highly enriched uranium used in older research reactors. The goal is to evaluate how HALEU behaves under various conditions, including remote locations and space missions, where reactors must operate safely for extended periods without refueling. The Missouri S&T Reactor (MSTR), operating at 200 kilowatts and housed in a large water pool for radiation shielding, will serve as the testbed for this research. Unlike commercial reactors that generate electricity, MSTR is used solely for research, allowing scientists to observe nuclear fission and
energynuclear-fuelsmall-modular-reactorsmicroreactorsHALEUnuclear-engineeringspace-reactorsNuclear startup Deep Fission goes public in a curious SPAC
Nuclear startup Deep Fission has gone public through a reverse merger with Surfside Acquisition Inc., raising $30 million at $3 per share—significantly below the typical $10 target for SPAC deals. The company, which previously raised $15 million in a seed round, aims to build small, underground cylindrical nuclear reactors designed to mitigate risks such as meltdowns and terrorist attacks by burying the reactors a mile underground. These 15-megawatt reactors use pressurized water cooling technology similar to that in nuclear submarines and existing power plants. Deep Fission recently secured a deal with data center developer Endeavor to deploy 2 gigawatts of underground reactors and was selected by the U.S. Department of Energy for a streamlined permitting process. Despite the modest capital raise and the decision to list on the OTCQB market, which suggests challenges in attracting new or existing investors, the merger provides Deep Fission with additional runway to advance its technology in a capital-intensive sector. The company
energynuclear-powersmall-modular-reactorsDeep-Fissionunderground-reactorsDepartment-of-Energyclean-energy-technologyUS to build 'historic' nuclear plant to power 4.5 million homes
The Tennessee Valley Authority (TVA) has partnered with ENTRA1 Energy to develop up to 6 gigawatts (GW) of new nuclear power through the construction of six nuclear plants across TVA’s seven-state region. Each plant will use 12 NuScale Power Modules (NPM), a small modular reactor (SMR) technology that is the only US Nuclear Regulatory Commission (NRC)-approved SMR currently ready for commercial deployment. Together, these plants are expected to generate approximately 5.5 GW of electricity, enough to power around 4.5 million homes or 60 large-scale data centers. ENTRA1 Energy will finance, build, and own the plants, while TVA will purchase the generated power. The NuScale Power Module integrates the reactor core, steam generators, and pressurizer into a compact vessel, allowing factory production and shipment to sites, which can reduce costs and construction time compared to traditional nuclear plants. Each module produces 77 megawatts electric (M
energynuclear-powersmall-modular-reactorsNuScale-Power-Modulecarbon-free-energybaseload-powerenergy-infrastructureAmazon to deploy X-energy's nuclear reactors to power AI data centers
Amazon has partnered with X-energy, Korea Hydro and Nuclear Power (KHNP), and Doosan Enerbility to develop advanced small modular reactors (SMRs) in the U.S. to power AI data centers. The collaboration focuses on deploying X-energy’s Xe-100 SMRs, which use TRISO-X fuel, known for its high safety standards. This initiative addresses the rapidly growing energy demands of data centers, projected to consume between 214 TWh and 675 TWh annually by 2030—up to 2.6 times the 2023 levels. SMRs offer a reliable, low-emission, and grid-independent power source that can be sited near data centers, reducing transmission losses and enabling efficient energy management. Amazon’s plan includes a 5 GW SMR roadmap featuring 12 Xe-100 units at the Energy Northwest site, with additional reactors planned for Seadrift, Texas, pending regulatory approval. Each partner contributes unique strengths: X-energy provides advanced reactor technology,
energynuclear-reactorssmall-modular-reactorsdata-centersAI-power-demandcarbon-free-energyAmazon-AWSBill Gates backs nuclear-powered ships in new push with HD Hyundai
HD Hyundai, South Korea’s leading shipbuilder, is strengthening its partnership with Bill Gates’ nuclear energy startup TerraPower to advance small modular reactor (SMR) technology, particularly for marine applications. Executive Vice Chairman Chung Ki-sun met with Gates in Seoul to discuss collaboration on TerraPower’s Natrium reactor, a fourth-generation sodium-cooled fast reactor (SFR) design known for high thermal efficiency, enhanced safety, and up to 40% reduced nuclear waste compared to conventional reactors. This meeting followed a March agreement to build a manufacturing and supply network for Natrium reactors, including a planned 345-megawatt reactor in Wyoming for which HD Hyundai will supply the reactor vessel. HD Hyundai had previously invested $30 million in TerraPower, underscoring its commitment to this technology. HD Hyundai views SMRs as a crucial component of the future global energy mix and aims to develop marine nuclear propulsion systems, including SMRs and hydrogen fuel cells, with a planned investment of about $215 million
energynuclear-energysmall-modular-reactorsSMRTerraPowerHD-HyundaishipbuildingNorway to test floating nuclear plants using small modular reactors
Norway is exploring the development of floating nuclear power plants using small modular reactors (SMRs) with capacities of 200-250 MW to provide clean, reliable electricity for offshore platforms and onshore grids. This initiative is a collaboration between Norsk Kjernekraft, a Bergen-based nuclear project developer, and Ocean-Power AS, a company aiming to become an offshore electricity provider. They plan to place SMRs on barges—flat-bottomed vessels without propulsion—to minimize land use while leveraging Norway’s maritime and engineering expertise. The floating plants aim to supply power to remote industrial hubs and offshore installations, supporting Norway’s transition to sustainable energy and reducing emissions. The partnership intends to combine Norsk Kjernekraft’s nuclear expertise with Ocean-Power’s infrastructure capabilities to develop innovative, flexible energy solutions that can also capture and store carbon dioxide emissions from combined cycle systems. The project emphasizes assessing concepts, technologies, and business models within Norwegian regulations and aims to mobilize the Nordic supplier industry to create world-leading,
energynuclear-powersmall-modular-reactorsfloating-power-plantsclean-energyoffshore-energysustainable-energyUK’s Rolls-Royce taps small nuclear reactors to fuel AI boom
Rolls-Royce is aiming to become the UK’s most valuable company by leveraging its expertise in nuclear technology to support the growing energy demands of artificial intelligence (AI). The company plans to power AI infrastructure using small modular reactors (SMRs), having already secured deals with the UK and Czech Republic governments. Rolls-Royce’s CEO, Tufan Erginbilgic, highlighted the company’s unique nuclear capabilities, including its experience supplying reactors for submarines, as a key competitive advantage in developing land-based SMRs. He predicts a global market need for 400 SMRs by 2050, each costing around $3 billion, representing a trillion-dollar opportunity. Rolls-Royce’s SMRs are designed to generate 470 megawatts of low-carbon energy—enough to power approximately 3 million homes—and are faster to build than traditional nuclear plants. The company has signed a memorandum of understanding with Škoda JS to explore component production for its SMR program, aiming
energynuclear-energysmall-modular-reactorsRolls-RoyceAI-energy-solutionslow-carbon-energygreen-technologyRolls-Royce advances for modular nuclear reactors to power 3 million homes
Rolls-Royce SMR has been selected to build the UK’s first fleet of Small Modular Reactors (SMRs), aiming to install up to 3 gigawatts (GW) of nuclear power capacity using its 470 MWe reactor design. Each SMR unit is designed to generate 470 megawatts of low-carbon energy, enough to power over a million homes for at least 60 years, with the entire project expected to power around 3 million homes. The reactors are pressurized water reactors with a projected operational life of at least six decades. This initiative represents the first new nuclear power station design and build in the UK in over a generation, offering a modular, factory-built approach to simplify construction, reduce costs, and avoid delays common in traditional nuclear projects. The modular design involves building 90% of each SMR unit in factory conditions before transporting them for final assembly, necessitating a robust and geographically diverse supply chain. Rolls-Royce SMR has signed a
energynuclear-powersmall-modular-reactorsRolls-Royceclean-energypower-generationmodular-constructionUS lab taps Amazon cloud to build AI-powered nuclear reactors
Idaho National Laboratory (INL), a leading U.S. Department of Energy nuclear research facility, has partnered with Amazon Web Services (AWS) to leverage advanced cloud computing and artificial intelligence (AI) for the development of autonomous nuclear reactors. This collaboration aims to create digital twins—virtual replicas—of small modular reactors (SMRs) ranging from 20 to 300 megawatts. Using AWS tools such as Bedrock, SageMaker, and custom AI chips (Inferentia, Trainium), INL plans to enhance modeling, simulation, and ultimately enable safe, self-operating nuclear plants. The initiative is designed to reduce costs, shorten development timelines, and modernize the nuclear energy sector, which has historically faced regulatory delays and high expenses. This partnership is part of a broader U.S. government strategy to integrate AI into nuclear energy infrastructure, supporting faster, safer, and smarter reactor design and operation. It follows a similar deal between Westinghouse and Google Cloud, signaling AI’s growing
energyartificial-intelligencenuclear-reactorsdigital-twinscloud-computingautonomous-systemssmall-modular-reactorsNuclear-powered hydrogen explored to fuel global clean energy shift
The article discusses First Hydrogen Corp.'s new initiative to design small modular nuclear reactors (SMRs) in collaboration with the University of Alberta, aiming to produce low-carbon “green” hydrogen at scale. This partnership focuses on optimizing SMR technology—compact, factory-built nuclear reactors producing up to a few hundred megawatts—to generate the heat and electricity needed for hydrogen production without carbon emissions. The project targets cost-competitive hydrogen generation to support growing energy demands, particularly from artificial intelligence (AI) data centers, which Goldman Sachs predicts will increase power consumption by 160% by 2030 and could account for up to 4% of global electricity use. SMRs offer advantages such as modular construction, reduced accident risks, longer fuel cycles, and suitability for locations where large reactors are impractical. Canada, with its 60-year nuclear safety record and government backing, is positioning SMRs as a key element of future energy independence. Several provinces are advancing SMR projects, and Prime Minister Mark Car
energynuclear-powerhydrogen-productionsmall-modular-reactorsclean-energyAI-data-centerssustainable-energyNuclear-powered hydrogen explored to fuel global clean energy shift
Canada-based First Hydrogen Corp. has initiated a collaboration with the University of Alberta to design small modular nuclear reactors (SMRs) aimed at producing low-carbon "green" hydrogen at competitive costs. This partnership focuses on refining reactor fuels, core materials, and plant layouts to optimize SMRs for converting heat and electricity into hydrogen without carbon emissions. First Hydrogen’s move into nuclear technology, through its newly formed subsidiary First Nuclear, targets large-scale hydrogen production to meet the growing electricity demands of AI-driven data centers, which Goldman Sachs predicts will increase data center power consumption by 160% by 2030, potentially accounting for up to 4% of global electricity use. SMRs, producing up to a few hundred megawatts, offer advantages over traditional gigawatt-scale reactors due to their modular, factory-built design that allows easier onsite assembly and installation in diverse locations such as industrial campuses or remote areas. Their simplified, mostly underground construction aims to enhance safety, reduce refueling frequency, and lower upfront costs
energynuclear-energyhydrogen-productionsmall-modular-reactorsclean-energyrenewable-energyAI-data-centersAmazon cloud powers US bid for autonomous next-gen nuclear reactors
Idaho National Laboratory (INL) and Amazon Web Services (AWS) have partnered to leverage AWS’s cloud computing, AI foundation models via Amazon Bedrock, and specialized hardware to advance next-generation autonomous nuclear reactors. The collaboration aims to reduce the cost and time involved in designing, licensing, building, and operating nuclear facilities, with the long-term goal of enabling safe, reliable autonomous operation of advanced reactors to accelerate their deployment. INL will utilize AWS’s AI models and computing power to develop nuclear energy applications, including creating a digital twin—a virtual simulation model—of a small modular reactor (SMR) as a key initial project. This initiative is part of a broader strategy to foster collaboration among government labs, AI firms, and nuclear developers, enhancing reactor safety, efficiency, and responsiveness. The digital twin technology will allow near real-time simulations critical for autonomous control systems. The effort aligns with a growing trend of integrating AI into nuclear energy, exemplified by similar work at Oak Ridge National Laboratory, which
energynuclear-energyautonomous-reactorsAI-in-energycloud-computingdigital-twinsmall-modular-reactorsUS to revive Palisades nuclear plant to power 800,000 homes
The U.S. Nuclear Regulatory Commission (NRC) has approved Holtec International’s request to restart the Palisades nuclear power plant in Michigan, marking the first time a previously shut-down U.S. nuclear plant has been authorized to resume operations. The 800-megawatt reactor, which had been shut down in 2022, is expected to power approximately 800,000 homes once fully operational. The NRC’s approval permits the plant to receive new fuel and transition licensed operators back on shift, with ongoing testing, inspections, and maintenance ensuring a safe and reliable restart under federal oversight. Holtec emphasized the significance of this milestone for the company, the state of Michigan, and the broader U.S. energy landscape, highlighting the plant’s role in enhancing grid reliability and supporting local jobs and economic growth. Beyond the immediate restart, Holtec plans to expand the Palisades site by deploying two SMR-300 small modular reactors (SMRs), aiming for commercial operation by 2030
energynuclear-powerPalisades-plantHoltec-Internationalsmall-modular-reactorsenergy-gridUS-energy-policySam Altman-backed Oklo to cool AI data centers with new nuclear tech
Oklo, a nuclear technology company backed by Sam Altman, has partnered with Vertiv, a leader in digital infrastructure, to develop an integrated power and cooling system for hyperscale and colocation data centers. This system will leverage Oklo’s small modular reactors (SMRs) to generate steam and electricity, combined with Vertiv’s thermal management technology, aiming to optimize both power and cooling efficiently and sustainably. The collaboration seeks to address common data center challenges such as high energy demand, reliance on power grids, and environmental impact by providing a reliable, carbon-free energy source that can be located near data centers for improved performance and scalability. The partnership comes amid the rapid growth of AI and high-performance computing, which significantly increases power consumption in data centers. Oklo’s SMRs are designed for flexibility and quick adaptation to changing energy needs, enabling continuous, stable power supply critical for data center operations. By integrating power generation and cooling solutions from the outset, Oklo and Vertiv aim to enhance energy efficiency
energynuclear-energydata-centerscooling-technologysmall-modular-reactorsAI-infrastructurepower-efficiencyClinch River site set for first-ever US SMR as NRC begins review
The Tennessee Valley Authority (TVA) has become the first U.S. utility to apply for a construction permit for GE Vernova Hitachi Nuclear Energy’s (GEH) BWRX-300 small modular reactor (SMR) technology. The Nuclear Regulatory Commission (NRC) has accepted TVA’s application to build a 300 MWe BWRX-300 reactor at the Clinch River site in Tennessee, marking a significant milestone as the first utility-led SMR project in the country. The NRC aims to complete its review within 17 months, and TVA may begin preliminary site preparation as early as next year. The Clinch River site already holds an early site permit, confirming its suitability from safety, environmental, and emergency planning perspectives. The BWRX-300 design is a water-cooled, natural circulation SMR with passive safety features, based on the licensed ESBWR boiling water reactor, and is the only boiling water SMR under development in the U.S. Its modular
energysmall-modular-reactorsnuclear-energyTVABWRX-300nuclear-powerenergy-securityNew York State wants more nuclear power in a big way
New York Governor Kathy Hochul has announced plans for the state to develop a large new nuclear power facility designed to generate at least 1 gigawatt of electricity. Emphasizing the importance of nuclear energy in reducing fossil fuel dependence, Hochul directed the New York Power Authority (NYPA) to spearhead the project, though specific site and design choices remain undecided. The state intends to collaborate with private partners for development, finance construction, and purchase the plant’s output. Potential locations include existing nuclear plants in upstate New York. This initiative aligns with a broader trend of tech companies like Microsoft, Meta, and Amazon investing in nuclear power to secure clean energy for their operations. Despite renewed interest, the nuclear industry faces significant challenges, including the absence of new nuclear plant construction in the U.S. for over 15 years and historical issues with cost overruns and delays. Hochul highlighted the need for federal regulatory and permitting reforms to expedite project timelines, noting that current barriers reside primarily in Washington
energynuclear-powerrenewable-energypower-plantsclean-energyenergy-policysmall-modular-reactorsNvidia wants in on the nuclear renaissance, invests in Bill-Gates backed TerraPower
Nvidia has made its first energy sector investment through its venture arm, NVentures, by participating in a funding round for TerraPower, a nuclear startup backed by Bill Gates and HD Hyundai. TerraPower is developing its Natrium reactor, designed to generate 345 megawatts of electricity, which positions it between large conventional reactors and smaller modular reactors. Unlike traditional water-cooled reactors, Natrium uses molten sodium as a coolant and incorporates a significant amount of sodium to store heat when electricity demand is low. This stored heat can then be used to generate electricity during peak demand, enabling the reactor to operate steadily while helping to balance intermittent renewable energy sources like solar and wind. TerraPower initially pursued a different reactor design but shifted to the Natrium design due to uncertainties. The company claims it can complete a reactor within three years after starting concrete work, although substantial site preparation is still required. While the Natrium reactor is expected to be cheaper than recent U.S. nuclear projects, costs remain high
energynuclear-powerTerraPowerNatrium-reactormolten-sodiumsmall-modular-reactorsenergy-storageEuropean firms partner to build 200 MW modular nuclear power plant
European firms Newcleo and Nextchem have formed a joint venture, NextCleo, to develop nuclear power plants based on Newcleo’s 200 MW lead-cooled fast reactor (LFR-AS-200) modular technology. Newcleo will focus on developing the nuclear reactor itself, while Nextchem will provide expertise in designing and managing the conventional island and balance of plant components necessary to convert nuclear energy into dispatchable electric power. Nextcleo will also offer integration services to other small modular reactor (SMR) and advanced modular reactor (AMR) technology providers. This collaboration aims to support decarbonization efforts, particularly by enabling low-carbon chemical production aligned with Nextchem’s e-Factory model. Nextchem will hold a 60% stake in Nextcleo, retaining operational control, while Newcleo will own 40%. Additionally, Nextchem will acquire an initial minority stake in Newcleo, increasing upon development milestones. The partnership plans to have a non-nuclear precursor prototype ready by 2026
energynuclear-powermodular-reactorssmall-modular-reactorsadvanced-modular-reactorsdecarbonizationenergy-transitionNvidia joins Gates-backed nuclear startup to power AI’s energy needs
Nvidia has invested in TerraPower, a nuclear energy company founded by Bill Gates, through its venture arm NVentures as part of a $650 million funding round. This strategic move aims to address the rapidly growing energy demands of AI-driven data centers, whose electricity consumption is expected to more than double by 2030. TerraPower develops advanced small modular reactors (SMRs), including its flagship Natrium project in Wyoming, which features a 345-megawatt sodium-cooled fast reactor paired with a gigawatt-scale molten salt energy storage system. This design allows for flexible, carbon-free power generation that can complement intermittent renewable sources like wind and solar. TerraPower is progressing toward commercial operation of the Natrium plant by 2030, with non-nuclear construction already underway. The company has also signed a memorandum of understanding with Sabey Data Centers to explore supplying nuclear energy directly to the data center industry, marking a significant early collaboration between advanced nuclear developers and major tech infrastructure operators.
energynuclear-energyAI-energy-needsTerraPowersmall-modular-reactorsdata-centerscarbon-free-energySweden team tests 100 rare nuclei to unlock nuclear fission secrets
Researchers at Chalmers University of Technology in Sweden conducted an experimental study using a large superconducting magnet to investigate nuclear fission in 100 exotic nuclei, including elements like platinum, mercury, and lead. Their goal was to better understand the fission process, which is fundamental both for improving cleaner nuclear energy generation and for insights into element formation in the universe. Nuclear fission typically produces asymmetric fragments—unequal in size and mass—due to the nuclear shell structure, where certain numbers of protons and neutrons confer greater stability. However, prior research focused mainly on a limited set of long-lived isotopes, leaving the fission behavior of many exotic, short-lived nuclei poorly understood. The team specifically studied nuclei with more protons than neutrons to identify which shell effects cause the nucleus to split asymmetrically into a lighter and a heavier fragment. Their surprising finding was that the enhanced stability of the smaller fission fragment is linked to a specific proton number—36—indicating a previously un
energynuclear-fissionnuclear-energyclean-energyradioactive-wastesmall-modular-reactorsmicroreactorsAmazon joins the big nuclear party, buying 1.92 GW for AWS
Amazon has joined a growing trend among major tech companies by securing 1.92 gigawatts of electricity from Talen Energy’s Susquehanna nuclear power plant in Pennsylvania to power its AWS cloud and AI servers. Unlike an earlier plan where Amazon intended to build a data center adjacent to the plant and draw power directly—bypassing the grid and transmission fees—regulatory concerns led to a revised agreement. The current deal positions Amazon as a grid-connected customer, paying transmission fees like other users, with the arrangement set to last through 2042. Transmission infrastructure upgrades are planned for spring 2026 to support this setup. Beyond the power purchase, Amazon and Talen Energy plan to explore building small modular reactors (SMRs) within Talen’s Pennsylvania footprint and expanding output at existing nuclear plants. Such expansions typically involve optimizing fuel enrichment, turbine upgrades, or other modifications to increase power generation. This move aligns Amazon with peers like Microsoft and Meta, who have also made significant investments in nuclear
energynuclear-powerAWScloud-computingsmall-modular-reactorsclean-energypower-purchase-agreementRolls-Royce to power 3 million UK homes with 1.5 GW nuclear reactors
Rolls-Royce has been selected by the UK government and the state-owned Great British Energy – Nuclear as the preferred bidder to develop the country’s first fleet of Small Modular Reactors (SMRs). The project aims to generate 1.5 gigawatts (GW) of electricity, enough to power approximately 3 million homes. Unlike traditional nuclear plants built entirely on-site, these SMRs will be factory-manufactured in modules and then assembled at the final location, a method intended to reduce construction costs, complexity, and delays. Each Rolls-Royce SMR will produce 470 megawatts, with the technology expected to begin generating power by 2032 at the earliest. This initiative is part of a broader UK nuclear strategy that includes a £14.2 billion investment in the large Sizewell C power station and a £2.5 billion commitment to the SMR program during the current Spending Review period. The government highlights that SMRs are smaller, quicker to build,
energynuclear-powersmall-modular-reactorsRolls-Royceclean-energyUK-energy-strategypower-generationUS firm plans 10 GW power from small reactors at retired nuclear site
Florida-based Holtec International, in partnership with Hyundai Engineering & Construction, plans to deploy advanced small modular reactors (SMRs) at the retired Palisades nuclear plant site in Michigan by 2030. The project, part of Holtec’s “Mission 2030” program, aims to build America’s first SMR-300 units—each a 300 MW advanced, passively safe, pressurized light water reactor—co-located with the existing 800 MW Palisades plant, which is currently being restarted after its 2022 shutdown. Holtec intends to build a 10-gigawatt fleet of SMR-300s across North America during the 2030s, leveraging the cost advantages of deploying SMRs at existing nuclear sites. Holtec is also exploring additional SMR deployments, including up to four units at the Oyster Creek site in New Jersey, where a 625 MW boiling water reactor is slated for decommissioning by 2029. The company sees significant growth potential for SMRs in the Mountain West region, particularly in Utah and Wyoming, supported by ongoing testing at Idaho National Laboratory and recent pro-nuclear legislation in Utah. Holtec’s SMR-300 design emphasizes passive safety features, such as gravity-driven safety systems, earning it a “walk-away safe” designation, and positions the company to compete globally against state-backed reactor vendors by offering comprehensive lifecycle services from construction to decommissioning. The Palisades SMR-300 project is intended to serve as a global benchmark for next-generation nuclear technology deployment, advancing U.S. leadership in clean energy innovation and unlocking worldwide opportunities for SMR adoption. Holtec highlights the project’s role in providing clean, reliable energy capable of powering hundreds of thousands of homes while maintaining high safety and operational standards.
energysmall-modular-reactorsnuclear-powerSMR-300clean-energypower-plantHoltec-InternationalDutch firm eyes nuclear power propulsion for greener cargo fleet
energynuclear-propulsioncarbon-emissionssmall-modular-reactorsoffshore-vesselssustainable-shippingdecarbonizationUS' largest SMR simulator to advance nuclear science for clean energy
clean-energynuclear-powersmall-modular-reactorsenergy-innovationVirginia-energyrenewable-energynuclear-engineeringLet’s Talk About Small Modular Reactors - CleanTechnica
nuclear-energysmall-modular-reactorsclean-technologyrenewable-energyenergy-productionclimate-changeelectricity-generationUkraine plans a small nuclear reactor in Chernobyl exclusion zone
nuclear-energysmall-modular-reactorsChernobylenergy-needsUkrainepower-generationradiation-managementGoogle inks deal to develop 1.8 GW of advanced nuclear power
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