?Total megawatts of U.S. nuclear capacity offline right now (units in outages plus reduced power).
382
MW Off
?Percentage of total fleet capacity currently online and generating power.
99.6%
Grid
?Outages scheduled for this season.
25
Fall 2026 Outages
?Units currently at 0% power (likely in an outage or shutdown).
0
Offline
?Units operating between 1-99% power (excluding known startups or coastdowns).
5
Reduce
?Units nearing the end of their fuel cycle, gradually lowering power before an outage.
0
Coasting
?Units increasing power following an outage or scram.
0
Startup
?Units on a qualifying Breaker-to-Breaker run: continuous operation exceeding their cycle-adjusted threshold with no trips to 0% power.
5
B2B
Nuclear NewsNEW TRISO-X to Create More Than 1,100 Jobs Through New Fuel Facility, Research and DTRISO-X plans to create 1,140 jobs in Oak Ridge, Tennessee, through the expansion of its fuel facility and research center at the Horizon Center Industrial Park. The company intends to invest hundreds of millions of dollars to support the development of advanced small modular reactors and domestic nuclear fuel production. This expansion follows the company's receipt of the first NRC license to construct and operate a commercial-scale facility for High-Assay Low-Enriched Uranium fuel. The project receives support from the Tennessee Nuclear Energy Fund, which aims to bolster the domestic supply chain for advanced nuclear technologies and increase regional capacity for next-generation reactor fuel fabrication. NASHVILLE, Tenn. – Tennessee Gov. Bill Lee, Deputy Gov. and Department of Economic...
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Nuclear NewsNEW Newcleo sets out plan for US licensing of reactorA rendering of a power plant based on Newcleo's LFR (Image: Newcleo) Newcleo submitted a Regulatory Engagement Plan to the Nuclear Regulatory Commission for its 200 MWe lead-cooled fast reactor. This document outlines the proposed framework and schedule for pre-application interactions with federal staff. The company intends to use this process to advance the licensing of its reactor design and associated mixed-oxide fuel fabrication facility in the United States. France-headquartered innovative nuclear energy company Newcleo has submitted a Regulatory Engagement Plan to the US Nuclear Regulat...Core Content
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Nuclear NewsNEW EM Update EM Specialists Help DOE Achieve Criticality Milestones for Advanced Reactors; University Partnerships Prepare Idaho for Used Nuclear Fuel Shipments; and much more! Department of Energy Office of Environmental Management personnel supported four advanced microreactors in achieving criticality by the July 4 deadline. These experts conducted readiness assessments and safety reviews for the Aalo-X, Mark-0, Ward 250, and Unity reactors. This effort reflects a shift in agency focus toward supporting new nuclear energy deployments. The involvement of cleanup specialists in reactor startup processes i...Core Content
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Nuclear NewsNEW Holtec bets big on small nuclear reactors in its IPO filingCanary media logo in type with yellow circle period. Holtec International has filed paperwork with the Securities and Exchange Commission to launch an initial public offering on the Nasdaq. The company intends to shift its business model from decommissioning shuttered nuclear plants and managing spent fuel to the design, construction, and operation of 300-megawatt small modular reactors. This transition reflects a broader industry effort to reduce capital costs through assembly-line manufacturing rather than traditional large-scale construction. Holtec aims to deploy its SMR-300 technology by...Core Content
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Nuclear NewsNEW US startup advances commercial spent nuclear fuel recycling with new plant desigWashington, D.C.-based nuclear technology company Curio has taken a major step toward building a commercial... Read the full article at msn.com :Core Content
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Nuclear NewsNEW Quantum Computers Identify Nuclear Fusion Fuel in Major FirstResearchers from Oak Ridge National Laboratory and IBM used quantum-centric supercomputing to identify nine molecular configurations of FLiBe, a molten salt used for tritium breeding. This simulation process aims to accelerate the discovery of materials capable of producing sufficient fuel for future fusion reactors by modeling atomic behavior and bonding. Tritium remains a primary obstacle for fusion energy due to its scarcity and radioactive nature. By utilizing advanced computational workflows to screen potential breeding materials, scientists can reduce the time and cost associated with ph...Core Content
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Nuclear NewsNEW NRC issues white safety finding to V.C. SummerThe Nuclear Regulatory Commission finalized a white safety finding for the V.C. Summer power plant following a failure to maintain the turbine-driven emergency feedwater pump governor valve linkage. Inspectors determined that a lack of preventive maintenance since 2017 led to mechanical binding and an overspeed trip during a 2025 surveillance test. This classification places the facility in the regulatory response column of the NRC action matrix, requiring supplemental inspections to verify corrective actions. The finding highlights the necessity of rigorous adherence to preventive maintenance...Core Content
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Nuclear NewsNEW Inertia unveils new headquarters, accelerating the path to commercial fusion eneInertia Enterprises opened a 50,000-square-foot headquarters in Livermore, California, to house a fusion fuel target factory and a high-energy laser system. The facility includes labs for target fabrication, metrology, and optics testing. The company aims to transition laser-indirect-drive fusion physics from experimental settings into a scalable commercial power source. This expansion reflects a broader industry shift toward private-sector commercialization of fusion energy. By leveraging proximity to the Lawrence Livermore National Laboratory and recruiting manufacturing experts from diverse...Core Content
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History & TriviaNEW 80 years ago, the military tested nukes on a fleetThe United States military conducted Operation Crossroads at Bikini Atoll in July 1946 to evaluate the effects of atomic weapons on naval fleets. The mission involved two detonations, Able and Baker, which sank 15 vessels and contaminated the surrounding environment, marking the first post-war nuclear tests conducted by the military. These tests demonstrated that radiation exposure posed a threat to naval operations beyond the immediate blast damage. The findings forced the military to reconsider conventional force structures and highlighted the long-term environmental and health consequences...Core Content
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Radiation SafetyNEW I need software, and have software to provide for free!Hello!I happen to be in need of both the WinRM25 and WinE600 Softwares. Do you by chance still have a copy lying around?
NotInIreland
NotInIreland
Outage NewsNEW Fermi 2 trips offline, unscheduled outage underwayFermi 2, Monroe, Michigan. Fermi 2 began a forced short unscheduled outage on 2026-07-04, ending a 44-day unscheduled-outage-free streak. This event marks the second forced outage for the unit in 2026, following zero forced outages during 2025. The 1,141-MW General Electric BWR/4 is currently the only unit in the fleet in an unscheduled outage. MONROE, MI. Fermi 2 dropped offline on Jul 4, 2026 , beginning an unscheduled outage. 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 the second unscheduled outage of 2026 for the unit. Across the U.S. fleet of 94 commercial reactors, today's combined capacity factor is 98.4% (1 unit in an unscheduled outage), above the 97.8% baseline for this month over the past five yea...Core Content
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Outage NewsWatts Bar 2 refuel pulled forward 7 days: now Nov 6The refueling schedule for Watts Bar 2 has been revised to start on 2026-11-06, which is 7 days earlier than the previous start date of 2026-11-13. The scheduled duration for the outage has also been adjusted from 28 days to 29 days. Watts Bar 2 's next refueling outage has been pulled forward by 7 days in the utility's published schedule. The new scheduled start is Nov 6, 2026 , moving from a previous schedule of Nov 13, 2026. Scheduled duration also revised: now 29 days , 1 day longer than the previously scheduled 28. For workers planning to support this outage, the revised window changes th...Core Content
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Outage NewsWaterford 3 refuel pushed back 17 days: now Oct 17The refueling schedule for Waterford 3 has been revised, moving the start date from September 30, 2026, to October 17, 2026. This adjustment represents a 17-day delay for the beginning of the outage. The planned duration for the event has also been modified, decreasing from 40 days to 25 days. Waterford 3 's next refueling outage has been pushed back by 17 days in the utility's published schedule. The new scheduled start is Oct 17, 2026 , moving from a previous schedule of Sep 30, 2026. Scheduled duration also revised: now 25 days , 15 days shorter than the previously scheduled 40. For workers...Core Content
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