small modular reactors Archives http://www.powermag.com/tag/small-modular-reactors/ The power industry's trusted source for generation technology, O&M, and legal & regulatory news for coal, gas, nuclear, hydro, wind & solar power plants; power jobs Thu, 04 Dec 2025 19:01:10 +0000 en-US hourly 1 https://wordpress.org/?v=6.7.2 https://www.powermag.com/wp-content/uploads/2020/11/cropped-p-power-32x32.jpg small modular reactors Archives http://www.powermag.com/tag/small-modular-reactors/ 32 32 INL Taps AWS, GE Vernova, Oil Majors for First MARVEL Microreactor Experiments https://www.powermag.com/inl-taps-aws-ge-vernova-oil-majors-for-first-marvel-microreactor-experiments/ https://www.powermag.com/inl-taps-aws-ge-vernova-oil-majors-for-first-marvel-microreactor-experiments/#respond Thu, 04 Dec 2025 19:01:10 +0000 https://www.powermag.com/?p=246024 Idaho National Laboratory (INL) has selected the five commercial teams that will potentially demonstrate advanced applications—including data center integration—at its much-watched Microreactor Application Research Validation and Evaluation (MARVEL) platform, an 85-kWth/20-kWe liquid-metal-cooled test bed currently under construction at the lab. The initial selections, unveiled on Dec. 4, mark the “first potential end users for MARVEL,” […]

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MARVEL, under development at Idaho National Laboratory (INL), is a 85-kWth/20-kWe sodium-potassium-cooled microreactor that will help researchers explore advanced reactor applications, including microgrid integration, remote monitoring, and autonomous control technologies. TRIGA International recently began fabricating fuel for MARVEL, with the first shipment expected by spring 2025. Fuel loading is planned for 2026, and the reactor is projected to be operational by 2027. Source: DOE

]]> https://www.powermag.com/inl-taps-aws-ge-vernova-oil-majors-for-first-marvel-microreactor-experiments/feed/ 0 UK Confirms Wylfa as Launch Site for First Nuclear SMR Fleet https://www.powermag.com/uk-confirms-wylfa-as-launch-site-for-first-nuclear-smr-fleet/ https://www.powermag.com/uk-confirms-wylfa-as-launch-site-for-first-nuclear-smr-fleet/#respond Tue, 25 Nov 2025 21:07:00 +0000 https://www.powermag.com/?p=245615 The UK has confirmed that Wylfa on the island of Anglesey, North Wales, will host three Rolls-Royce small modular reactors (SMRs) that could deliver first power in the mid-2030s—launching a state-backed, fleet-based nuclear deployment through publicly owned entity Great British Energy–Nuclear (GBE-N). The UK government has framed the SMR project, which is underpinned by more […]

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The 470-MWe Rolls-Royce SMR, a pressurized water reactor, has a 60-year design life and a capacity factor above 95%. Its modular construction, involving 1,500 transportable modules, aims to reduce on-site construction time. The SMR is designed with both passive and active safety features, and it has potential for cogeneration applications. Rolls-Royce SMR targets both domestic and international markets, focusing on scalability and competitive energy generation. Courtesy: Rolls-Royce SMR

]]> https://www.powermag.com/uk-confirms-wylfa-as-launch-site-for-first-nuclear-smr-fleet/feed/ 0 POWER Interview: CyrusOne Expert on How AI Is Reshaping the Data Center–Utility Relationship https://www.powermag.com/power-interview-cyrusone-expert-on-how-ai-is-reshaping-the-data-center-utility-relationship/ https://www.powermag.com/power-interview-cyrusone-expert-on-how-ai-is-reshaping-the-data-center-utility-relationship/#respond Wed, 12 Nov 2025 13:54:26 +0000 https://www.powermag.com/?p=244776 CyrusOne’s Jim Roche details how AI-driven workloads, high-density racks, and liquid cooling are transforming the data center–utility relationship. Only a decade ago, few in the power sector could have predicted that the digital economy’s engine—the data center—would become a central concern for utility planners, grid operators, and energy policymakers. For much of its history, data […]

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]]> https://www.powermag.com/power-interview-cyrusone-expert-on-how-ai-is-reshaping-the-data-center-utility-relationship/feed/ 0 Bill Gates: ‘The Future of Energy Is Subatomic’ https://www.powermag.com/blog/bill-gates-the-future-of-energy-is-subatomic/ https://www.powermag.com/blog/bill-gates-the-future-of-energy-is-subatomic/#respond Thu, 02 Oct 2025 17:53:31 +0000 https://www.powermag.com/?post_type=blog&p=242513 I’m lucky to learn firsthand about some of the world’s most cutting-edge technologies. I’ve seen artificial intelligence ace an AP biology test, long before AI became an everyday tool. I’ve seen genetically modified mosquitoes that stop malaria in its tracks. I’ve seen geothermal wells that go 15,000 feet below the surface of the earth.   But […]

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]]> https://www.powermag.com/blog/bill-gates-the-future-of-energy-is-subatomic/feed/ 0 U.S.–UK Nuclear Partnership Spurs Historic Wave of Fuel, SMR, and EPC Deals—Here’s the Rundown https://www.powermag.com/u-s-uk-nuclear-partnership-spurs-historic-wave-of-fuel-smr-and-epc-deals-heres-the-rundown/ https://www.powermag.com/u-s-uk-nuclear-partnership-spurs-historic-wave-of-fuel-smr-and-epc-deals-heres-the-rundown/#respond Wed, 24 Sep 2025 19:41:04 +0000 https://www.powermag.com/?p=242042 The most significant week in transatlantic nuclear cooperation since the 1950s atomic partnership unfolded Sept. 14–24, 2025, as a coordinated surge of commercial agreements—totaling over $100 billion—spanned advanced reactor deployments, advanced nuclear fuel supply chains, nuclear waste management, maritime nuclear applications, engineering services, and regulatory harmonization. Formalized under the Atlantic Partnership for Advanced Nuclear Energy […]

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]]> https://www.powermag.com/u-s-uk-nuclear-partnership-spurs-historic-wave-of-fuel-smr-and-epc-deals-heres-the-rundown/feed/ 0 Oklo Breaks Ground on INL Nuclear Fast Reactor Project, Launches Private Fuel Recycling Facility https://www.powermag.com/oklo-breaks-ground-on-inl-nuclear-fast-reactor-project-launches-private-fuel-recycling-facility/ https://www.powermag.com/oklo-breaks-ground-on-inl-nuclear-fast-reactor-project-launches-private-fuel-recycling-facility/#respond Tue, 23 Sep 2025 17:43:14 +0000 https://www.powermag.com/?p=241882 Advanced nuclear technology firm Oklo has broken ground on its inaugural 75-MWe sodium-cooled fast reactor at an Idaho National Laboratory (INL) site. The project—one of three awarded to the company under the Department of Energy’s (DOE’s) newly established Reactor Pilot Program—is targeting operations between late 2027 and early 2028, though that timeline is contingent on […]

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INSERT ART. Oklo’s Aurora Powerhouse is a vertically oriented compact passive fast-spectrum reactor derived from the Experimental Breeder Reactor-II (EBR-II) that uses liquid metal as a coolant. The company recently uprated its design’s capacity offerings to 15 MWe and 100 MWe. The compact fast reactor uses a high-assay, low-enriched uranium (HALEU) metallic uranium-zirconium fuel enriched to about 19%. Courtesy: Oklo

]]> https://www.powermag.com/oklo-breaks-ground-on-inl-nuclear-fast-reactor-project-launches-private-fuel-recycling-facility/feed/ 0 Constellation Outlines Nuclear Expansion Plans at Clinton Site as Meta Partnership Strengthens https://www.powermag.com/constellation-outlines-nuclear-expansion-plans-at-clinton-site-as-meta-partnership-strengthens/ https://www.powermag.com/constellation-outlines-nuclear-expansion-plans-at-clinton-site-as-meta-partnership-strengthens/#respond Wed, 27 Aug 2025 17:15:55 +0000 https://www.powermag.com/?p=240443 Constellation Energy is evaluating specific regulatory pathways to enable potential deployment of advanced nuclear reactors at its Clinton Clean Energy Center. The measure could mark the first concrete steps toward next-generation nuclear development at the Illinois site now that the competitive generator has finalized a landmark 20-year agreement with Meta. Constellation disclosed on Tuesday that […]

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]]> https://www.powermag.com/constellation-outlines-nuclear-expansion-plans-at-clinton-site-as-meta-partnership-strengthens/feed/ 0 Deadline vs. Deployment: Can U.S. Advanced Reactors Meet DOE’s 2026 Criticality Goal? https://www.powermag.com/deadline-vs-deployment-can-u-s-advanced-reactors-meet-does-2026-criticality-goal/ https://www.powermag.com/deadline-vs-deployment-can-u-s-advanced-reactors-meet-does-2026-criticality-goal/#respond Thu, 26 Jun 2025 20:30:28 +0000 https://www.powermag.com/?p=236326 In a new pilot program, the U.S. Department of Energy (DOE) issued an ambitious challenge: bring at least three advanced nuclear test reactors to criticality by July 4, 2026. Announced in June, the program sidesteps traditional Nuclear Regulatory Commission (NRC) licensing, seeking instead to authorize full-scale reactors on private sites through DOE’s internal review process. […]

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A cross-section of an eVinci microreactor at the eVinci Technology Hub in Etna, Pennsylvania. Courtesy: Westinghouse

]]> https://www.powermag.com/deadline-vs-deployment-can-u-s-advanced-reactors-meet-does-2026-criticality-goal/feed/ 0 NuScale Advances SMR-Powered Desalination and Hydrogen Production with Integrated Brine Reuse Strategy https://www.powermag.com/nuscale-advances-smr-powered-desalination-and-hydrogen-production-with-integrated-brine-reuse-strategy/ https://www.powermag.com/nuscale-advances-smr-powered-desalination-and-hydrogen-production-with-integrated-brine-reuse-strategy/#respond Wed, 18 Jun 2025 14:54:32 +0000 https://www.powermag.com/?p=235684 Small modular reactor (SMR) technology developer NuScale Power has unveiled research programs that could advance an energy system that integrates its nuclear technology to produce desalinated water and hydrogen, while reusing brine waste as an industrial feedstock. The research, developed in partnership with the U.S. Department of Energy’s (DOE’s) Pacific Northwest National Laboratory (PNNL) and […]

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]]> https://www.powermag.com/nuscale-advances-smr-powered-desalination-and-hydrogen-production-with-integrated-brine-reuse-strategy/feed/ 0 Talen, Amazon Launch $18B Nuclear PPA—A Grid-Connected IPP Model for the Data Center Era https://www.powermag.com/talen-amazon-launch-18b-nuclear-ppa-a-grid-connected-ipp-model-for-the-data-center-era/ https://www.powermag.com/talen-amazon-launch-18b-nuclear-ppa-a-grid-connected-ipp-model-for-the-data-center-era/#respond Thu, 12 Jun 2025 20:56:39 +0000 https://www.powermag.com/?p=235312 Talen Energy has restructured and significantly expanded its nuclear energy agreement with Amazon Web Services (AWS), finalizing a 17-year, $18 billion power purchase agreement (PPA) that will supply up to 1,920 MW of carbon-free electricity from the 2.5-GW Susquehanna nuclear plant to Amazon’s data centers across Pennsylvania. The deal, announced on June 11, restructures a […]

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Susquehanna Steam Electric Station in Salem Township, Pennsylvania, is a two-unit, 2,476-MW nuclear plant operated by Susquehanna Nuclear LLC, a subsidiary of Talen Energy, which owns 90% of the facility; Allegheny Electric Cooperative holds the remaining 10%. A PJM market participant in the PPL/MAAC zone, the plant has supplied reliable, carbon-free power since 1983. Courtesy: Talen Energy

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