Total megawatts of U.S. nuclear capacity offline right now (units in outages plus reduced power).
6,943
MW Offline
Percentage of total fleet capacity currently online and generating power.
92.8%
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).
6
Units Offline
Units operating between 1-99% power (excluding known startups or coastdowns).
2
Reduced Power
Units nearing the end of their fuel cycle, gradually lowering power before an outage.
3
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.
10
Breaker-to-Breaker
Nuclear NewsNEW The Navy Dropped Atomic Bombs on More Than 90 Ships. The ‘Ghost Fleet’ Is Still ThereThe Navy Dropped Atomic Bombs on 90+ Ships. The ‘Ghost Fleet’ Is Still There Eighty years after Operation Crossroads, dozens of warships remain at the bottom of Bikini Atoll. The United States Navy assembled more than ninety vessels for the 1946 atomic bomb tests, sinking historic carriers, battleships, and submarines in the lagoon. These submerged hulks offer a physical record of early nuclear weapons effects on naval architecture and equipment. The tests also forced the permanent displacement of local residents and introduced widespread radioactive contamination, establishing early precedents for the environmental and social costs of atomic research. The Navy assembled more than 90 ships for nuclear tests at Bikini Atoll. Eighty years later, warship wrecks remain beneath the lagoon. An u...
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Nuclear NewsNEW Hanford’s TSCR system restarted after extended downtimeOperations resumed at the Hanford Site after storage Tank AP-106 gained sufficient capacity to accept additional processed material. The system had been idle for six months because the receiving tank was too full to handle more low-level waste. Site managers noted that the bottleneck supports proposals for a dual glass and grout disposal strategy to prevent future operational delays. Earlier this week, the Tank-Side Cesium Removal (TSCR) system at the Department of Energy’s Hanford Site near Richland, Wash., returned to service following a pause in operation that began on February 25. The syst...Core Content
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Nuclear NewsNEW USDA opens nuclear power funding opportunity for rural electric cooperativesThe United States Department of Agriculture launched a funding initiative allocating $175 million in loans and grants for rural electric cooperatives. The Affordable Rural Cooperative Program aims to expand nuclear power generation and transmission infrastructure in rural areas. Eligible cooperatives can submit letters of interest between October 19 and November 20, with final awards expected by 2027. A new program from the U.S. Department of Agriculture has allocated $175 million for rural electric cooperatives to expand nuclear power and improve electricity transmission in rural communities....Core Content
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Nuclear NewsNEW 150,000 Tons of Radioactive Waste Were Dumped in The Atlantic. Decades Later, It's Visibly Oozing.Researchers using a crewed submersible investigated Atlantic Ocean sites where more than 200,000 barrels of low-level radioactive waste were dumped between 1949 and 1982. The expedition found many containers heavily corroded and leaking material onto the seafloor while simultaneously serving as artificial habitats for marine life. The findings highlight the long-term environmental behavior of historical ocean disposal practices relied upon by the nuclear industry during the mid-20th century. While historical disposal guidelines assumed short-lived radionuclides would decay before containment f...Core Content
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Nuclear NewsNEW New Mexico lawmakers warn of ‘urgent threat’ over federal nuclear oversight shortfallsA New Mexico legislative committee sent letters to federal officials demanding the reversal of recent Department of Energy safety directive rollbacks. Lawmakers expressed concern that weakened emergency preparedness rules and restricted access for the Defense Nuclear Facilities Safety Board jeopardize facility workers. The committee urged the administration to restore independent oversight and refill empty safety board seats to ensure proper operational safety. New Mexico lawmakers warned of 'urgent threat' over federal deregulation of nuclear directives and blocking of oversight agency. A bip...Core Content
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Nuclear NewsNEW INL FOUNDATION AND MICRONUCLEAR PARTNER TO ADVANCE THE MOLTEN SALT NUCLEAR BATTERYThe Idaho National Laboratory Foundation and MicroNuclear, LLC, formed an agreement to advance the Molten Salt Nuclear Battery project. The partnership includes several engineering firms working toward prototype fabrication, regulatory licensing, and testing at a national laboratory. This collaboration aims to move the 20-megawatt thermal microreactor closer to commercial deployment for remote grids and critical infrastructure. /PRNewswire/ -- The Idaho National Laboratory (INL) Foundation and MicroNuclear, LLC, today announced an agreement to collaborate on advancing MicroNuclear's... The col...Core Content
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Nuclear NewsNEW LAMP Receives Critical Milestone Approval, Paving Way for LANSCE ModernizationThe National Nuclear Security Administration granted Critical Decision-1 approval to the Los Alamos Neutron Science Center Accelerator Modernization Project. The decision allows the facility to begin the design phase for replacing components that have operated for over fifty years. The project addresses declining reliability and obsolete infrastructure at the nation's last high-voltage generator facility. Upgrading the front-end systems aims to secure long-term experimental capabilities for stockpile stewardship, materials science, and national security research while reducing maintenance down...Core Content
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Nuclear NewsNEW MSRE FLiBe arrives in Texas for reuse after decades in storageMore than two metric tons of FLiBe salt from the historic Molten Salt Reactor Experiment have been delivered to Abilene Christian University in Texas. The material will serve as the primary constituent for the fuel salt in the university's new Molten Salt Research Reactor. This transfer provides a rare domestic supply of lithium-7 enriched fluoride salt required for advanced reactor development. Operational data gathered from the project will assist regulators and developers in commercializing liquid-fueled, graphite-moderated molten salt reactor technology. This morning, more than 2 metric to...Core Content
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History & TriviaNEW This Hidden City In Tennessee Held One Of The World’s Most Closely-Guarded SecretsOak Ridge, Tennessee transformed rapidly from a rural farming town into a massive, classified site for the Manhattan Project during World War II. Thousands of workers labored in secrecy to produce material for the atomic weapons that ultimately brought an end to the global conflict. The historic site established strict security protocols and massive industrial infrastructure that laid the groundwork for modern nuclear research facilities. Today, the location preserves its wartime heritage while continuing to contribute to advancements in science, technology, and energy research within the nuclear sector. Oak Ridge Tennessee, is a massive secret hidden city that once held the location that built the first atom bomb that ended WWII. Government conspiracies, cover-ups, and secret military ope...Core Content
Core ContentGeneralShift Test Engineer Career PathsI am doing my Shift Test Engineer initial qualification at a public shipyard. I'm going to complete my STE qualification but I have some doubts as to whether I am going to stay at this shipyard long-term. If after completing my initial qualification, I decide to go to a different shipyard, will I take my STE qualification with me and only have to cross-qualify to my new yard' platform(s) or will I be starting from scratch initial qualifying again?If I decide to go the commercial route, what are good departments for former STEs besides operations?
roggy22
roggy22Nuclear SoftwareLooking for Rados softwareUpdate: I found out that Mirion bought Rados. I called Mirion and they informed me that they have discontinued the model and software. I haven't had any luck by reaching out to third parties.You're my only hope Obi-Wan :)achathaway
achathaway
Outage NewsFitzPatrick begins Fall 2026 refueling outageFitzPatrick began a routine refueling outage on September 14, 2026, aligning exactly with its published schedule. The unit entered this maintenance period after completing 100 percent of its typical 729-day operating cycle and maintaining an unscheduled-outage-free streak of 720 days. The scheduled duration for this refueling outage is 17 days, which is shorter than the unit's 28.3-day average across 13 prior refuels. FitzPatrick, an 853-MW General Electric BWR/4 operated by Constellation Nuclear, recorded a 99.7 percent capacity factor during its 2025 cycle. Across the U.S. fleet, 94 units are currently operating at a 92.4 percent capacity factor, with five units in refueling outages and one in an unscheduled outage. LYCOMING, NY. Refueling activities began at FitzPatrick on Sep 14, 2026...Core Content
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Outage NewsVogtle 2 begins Fall 2026 refueling outageGeorgia Power began a routine refueling outage at Vogtle 2 on September 13, 2026. The 1,152-MW Westinghouse pressurized water reactor entered the maintenance window exactly on its scheduled start date with a planned 43-day duration. Going into this event, the unit maintained an 813-day unscheduled-outage-free streak and had completed roughly 97 percent of its typical 547-day operating cycle. Georgia Power operates five other nuclear units, while the broader U.S. fleet operates at a 92.4 percent capacity factor with six total reactors currently offline. Vogtle 2 recorded a 92 percent capacity f...Core Content
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Outage NewsBrowns Ferry 1 begins Fall 2026 refueling outageBrowns Ferry 1 began a routine refueling outage on September 12, 2026, starting one day later than the scheduled September 11 date. The 1,256-MW General Electric BWR/4 entered the break after completing about 98 percent of its typical 726-day operating cycle. Operated by the Tennessee Valley Authority, the unit entered the refueling outage following an unscheduled-outage-free streak of 142 days and a 2025 capacity factor of 97.8 percent. The historical average for this unit is 32.7 days across nine prior refuels. Across the broader U.S. fleet, capacity factor stands at 92.4 percent for 94 unit...Core Content
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