Total megawatts of U.S. nuclear capacity offline right now (units in outages plus reduced power).
1,999
MW Offline
Percentage of total fleet capacity currently online and generating power.
97.9%
Fleet Online
Refueling outages scheduled for this season. Each one is a hiring window.
24
Fall 2026 Outages
Units currently at 0% power (likely in an outage or shutdown).
1
Units Offline
Units operating between 1-99% power (excluding known startups or coastdowns).
5
Reduced Power
Units nearing the end of their fuel cycle, gradually lowering power before an outage.
1
Coastdown
Units increasing power following an outage or scram.
0
Starting Up
Units on a qualifying Breaker-to-Breaker run: continuous operation exceeding their cycle-adjusted threshold with no trips to 0% power.
9
Breaker-to-Breaker
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Nuclear NewsNEW US collaboration to study used nuclear fuel recyclingCurio, NuScale Power, and Framatome have signed a memorandum of understanding to evaluate the recycling of used nuclear fuel. The partners will use Curio’s proprietary NuCycle technology to assess pathways for recovering materials from spent fuel. This effort aims to support future fuel fabrication, supply chain development, and commercial deployment of advanced reactors. This collaboration addresses the long-standing challenge of managing used fuel in the United States, where commercial reprocessing has been prohibited since 1977. By exploring methods to recover materials and reduce waste volumes, the companies seek to create a more integrated fuel cycle. This work aligns with recent Department of Energy initiatives aimed at developing commercially viable reprocessing technologies for the...
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Nuclear NewsNEW Industry Update—August 2026August 2026 industry developments include multiple SMR design, manufacturing, and supply chain agreements across the United States, Europe, and Canada. Key activities involve new partnerships for reactor components, regulatory filings for advanced designs, and corporate acquisitions aimed at vertical integration. These moves reflect a broader trend of consolidating supply chains for modular reactor deployment. These developments highlight the ongoing transition from conceptual design to industrial-scale manufacturing for small modular and advanced reactors. By securing specialized valve suppli...Core Content
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Nuclear NewsNEW Nuclear roots run deep in Atomic City, Idaho, next to hub for new reactor testingDeployable Energy recently achieved criticality for a new test reactor at the Idaho National Laboratory. This milestone marks the first sustained chain reaction for the company, which aims to develop micro reactors capable of powering 1,000 homes. The project is part of a broader effort to deploy smaller, transportable nuclear energy systems. The industry is currently shifting focus toward micro reactors intended for remote communities, military bases, and data centers. While proponents view these designs as a solution to rising energy demands, critics express concern regarding the impact of e...Core Content
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Nuclear NewsNEW The transformation of the NRC: 50 years of commissionersThe Nuclear Regulatory Commission underwent significant leadership and structural changes throughout 2025, culminating in a full five-member commission by year-end. Driven by the ADVANCE Act and Executive Order 14300, the agency experienced high staff turnover, losing over 500 employees, including senior technical experts, while accelerating the development of new licensing frameworks. These shifts reflect a broader transition in the agency's mission toward enabling rapid nuclear deployment. By finalizing Part 53 and proposing new rules for microreactors, the current commission is prioritizing...Core Content
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Nuclear NewsNEW Green River nuclear project gets new life, but major questions remain Blue Castle Holdings and Fulcrum Point Holdings are reviving a long-stalled nuclear project near Green River, Utah. The updated proposal replaces previous plans for large-scale reactors with Holtec International’s SMR-300 small modular reactor technology. Developers intend to leverage existing site characterization and water rights to accelerate the development process. This shift toward smaller reactor designs reflects broader industry trends aimed at reducing capital costs and water consumption. Despite the pivot, the project lacks formal Nuclear Regulatory Commission licensing, confirmed fi...Core Content
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Nuclear NewsNEW Missouri River is best source of water for nuclear energy in North Dakota, regulator saysNorth Dakota regulators identified the Missouri River as the primary water source for potential nuclear power projects in the state. Officials noted that surface water from the river is preferable to groundwater for cooling requirements. The state continues to discuss water allocation rights with downstream neighbors as the legislative committee evaluates feasibility. The Advanced Nuclear Energy Committee is currently assessing the regulatory and economic landscape for small modular reactors. State officials highlighted that future development depends on resolving long-term spent fuel storage...Core Content
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Nuclear NewsNEW ORNL, Type One Energy to advance fusion fuel cycle with innovative new technologiesOak Ridge National Laboratory has licensed a suite of cryogenic pellet fueling technologies to Type One Energy. The agreement covers four inventions designed to produce and inject solid hydrogen pellets into fusion plasmas. This technology aims to improve fuel efficiency and core plasma performance in next-generation stellarator fusion devices. Reliable fueling is a technical hurdle for continuous fusion power generation, particularly regarding the handling of tritium. Current methods like gas puffing lack the precision required for reactor-scale operations. By transitioning these laboratory-d...Core Content
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Nuclear NewsNEW Lunar helium-3 eyed as fuel for 50-MWe next-gen US fusion plant planned for 2031TAE Technologies has entered an agreement with Black Moon Energy Corporation to secure a prospective helium-3 fuel supply for its future fusion power plants. The partnership supports the development of a fuel chain for the planned 50-megawatt Da Vinci reactor, which is scheduled to begin operations in 2031. This collaboration provides TAE with flexibility in selecting fuel cycles as it works to establish a commercial framework for fusion energy deployment. TAE Technologies secures a prospective helium-3 fuel option as it advances plans for its first commercial fusion power plant. Fusion energy...Core Content
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Nuclear NewsNEW DOE launches supercomputing effort to recycle 95,000 metric tons of used nuclear fuelSupercomputing takes on 95,000-ton nuclear fuel recycling challenge SHINE Technologies is leading a Department of Energy project to develop an AI-enabled system for designing nuclear fuel recycling facilities. Partnering with Argonne National Laboratory, the firm will integrate AI into existing modeling tools to evaluate facility configurations and process tradeoffs. This effort aims to improve the recovery of usable material from the 95,000 metric tons of used nuclear fuel currently stored in the United States. SHINE will optimize nuclear fuel recycling and help recover usable material from 9...Core Content
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Outage NewsNEW Millstone 2 trips offline, unscheduled outage underwayMillstone 2 entered a forced short outage on August 4, 2026. This event ended a 51 day unscheduled outage free streak for the 863 MW Combustion Engineering pressurized water reactor. This forced outage marks the second such event for Millstone 2 during 2026, following a year in 2025 with zero forced outages. Dominion Energy Nuclear Conn operates this unit and one other U.S. nuclear unit. Across the industry, 94 units are currently maintaining a 97.7 percent capacity factor. There are two units in unscheduled outages nationwide, with River Bend 1 being the only other unit currently offline. WATERFORD, CT. Millstone 2 entered an unscheduled outage on Aug 4, 2026 . The NRC has not yet issued an event notification for this trip; a follow-up reply will be posted here if one is filed. This is th...Core Content
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Outage NewsNEW River Bend 1 trips offline, unscheduled outage underwayRiver Bend 1 began an unscheduled forced short outage on August 1, 2026. This event ended a streak of 256 days of operation without an unscheduled outage at the 968-MW General Electric BWR/6 facility. The unit has recorded one forced outage so far in 2026, compared to four forced outages during the 2025 calendar year. Entergy Louisiana operates this unit and one other nuclear unit in the United States. Across the industry, the current fleet capacity factor is 98.6 percent among 94 units, with one unit currently in an unscheduled outage and zero units in refueling. The facility has been in comm...Core Content
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Outage NewsNEW Turkey Point 4 refueling outage pushed backThe refueling schedule for Turkey Point 4 has been revised with the outage now pushed back to a later start date. The planned duration for this maintenance period has also been extended beyond the previous estimate. Readers should consult the NukeWorker outage schedule for the updated dates and duration details regarding this unit. Turkey Point 4 's next refueling outage has been pushed back in the utility's published schedule. The revised start date and duration are on the NukeWorker outage schedule. The scheduled duration was revised at the same time, and the outage is now planned to run lon...Core Content
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Site NewsNEW Every Outage Finally Has a NameEvery Outage Finally Has a Name If you have worked an outage, you know it has a name. Nobody at the tool crib says "the spring outage at Catawba." They say C1R28 . It is on the badge, on the schedule, on the coffee cup somebody had printed.For years, right here on NukeWorker, every one of those outages was a date range and a colored bar. "Catawba 1, March 2026." Technically true. Totally soulless. That bugged me. So we went and got the names. The hunt Here is the thing nobody tells you: there is no master list. Nowhere can you download a tidy file where some kind soul has written down that Turkey Point 3's spring outage was TP3-35 and Surry 2's was EOC33 . What there is: tens of thousands of NRC inspection reports , licensee event reports, and utility letters, scanned and OCR'd and scatter...
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RennhackRadiation SafetyKyle HillGreat post, Marlin! I wasn't aware this change was getting YouTube traction lol. Thanks for the link.
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Radiation SafetyRadiation Protection AIthose that have a chatgpt subscription. Another great tool for RCT's, Rad Engineers or CHP'sS T I G
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