Total megawatts of U.S. nuclear capacity offline right now (units in outages plus reduced power).
18,144
MW Offline
Percentage of total fleet capacity currently online and generating power.
81.3%
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).
17
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.
0
Coastdown
Units increasing power following an outage or scram. Now: Browns Ferry 1 94%, Waterford 3 97%.
2
Starting UpBrowns Ferry 1 +1
Units on a qualifying Breaker-to-Breaker run: continuous operation exceeding their cycle-adjusted threshold with no trips to 0% power. Longest trip-free streak: Braidwood 2, 13.3 years since its last unplanned outage.
5
Breaker-to-BreakerBraidwood 2 13.3y
Site NewsNEW Our long-range outage projections just got sharperNukeWorker's Outage Schedule gives you two things: validated dates for the coming season, and our own long-range projections for the seasons beyond, 18 to 24 months out, before the utilities publish their dates.Today we upgraded the engine behind those long-range projections. Measured against the dates utilities have since confirmed, the new engine is 28% better at predicting long-range (18 to 24 month) start dates.See how we score ourselves on the Accuracy Scorecard.
Nuclear NewsNEW Fermi America, Blue Energy make strides in TexasFederal regulators completed a draft environmental impact statement for Fermi America and its plan to construct four AP1000 reactors in Texas. Additionally, Blue Energy submitted the first part of a construction permit application for a separate gas-to-nuclear project at the Port of Victoria.
Nuclear NewsNEW Bluecore Energy Secures Low-Enriched Uranium Located at the Largest Commercial Nuclear Fuel FacilityBluecore Energy secured low-enriched uranium hexafluoride from WMC, storing the material at a commercial nuclear fuel facility in the United States. The company is advancing its compact, water-cooled floating reactor design alongside ongoing regulatory reviews with federal agencies.
Nuclear NewsNEW ABS and U.S. Department of Energy Sign MOU on Maritime Applications of Advanced Nuclear TechnologyThe American Bureau of Shipping and the U.S. Department of Energy signed an agreement to evaluate advanced nuclear technology for commercial marine use. The partnership covers floating power plants, nuclear propulsion for vessels, and required shipyard infrastructure. This initiative establishes a regulatory and technical framework that will create new operational roles for nuclear industry personnel in the maritime sector.
Nuclear NewsNEW General Fusion reports electron temperatures exceeding 1 keVGeneral Fusion reached electron temperatures exceeding 1 keV on its Lawson Machine 26 demonstration device. The company used Thomson scattering and extreme ultraviolet diagnostics to confirm the results during peak compression. Researchers conducted the measurements in partnership with the UK Atomic Energy Authority.
Nuclear NewsNEW The environmental case for thorium is real. The commercial fleet isn’t.Thorium offers distinct environmental and safety advantages over conventional uranium, yet commercial adoption remains blocked by entrenched industry infrastructure and economic hurdles. Past projects like Colorado's Fort St. Vrain reactor utilized thorium, but high operating costs and complex fuel fabrication ultimately halted widespread deployment.
Outage NewsNEW Peach Bottom 2 begins Fall 2026 refueling outagePeach Bottom 2 began a routine refueling outage on October 12, 2026, matching its published schedule. The 1,265-MW boiling water reactor entered the maintenance period following an unscheduled-outage-free streak of 823 days.
Outage NewsNEW Millstone 3 begins Fall 2026 refueling outageDominion Energy Nuclear Conn began a routine refueling outage at Millstone 3 on October 12, 2026, starting one day later than its scheduled October 11 start date. The Westinghouse four-loop pressurized water reactor entered this maintenance period following an unscheduled outage-free streak of 351 days.
Outage NewsNEW Diablo Canyon 1 begins Fall 2026 refueling outagePacific Gas & Electric began a routine refueling outage at Diablo Canyon 1 on October 11, 2026. The 1,122-megawatt unit started the project one day earlier than its scheduled October 12 start date, targeting a 35-day duration.
Outage NewsNEW Hatch 1 trips offline, unscheduled outage underwayHatch 1 began an unscheduled forced short outage on October 11, 2026. The event ended a 167 day unscheduled outage free streak for the unit, with duration projected at about four days.
Outage NewsNEW Point Beach 1 begins Fall 2026 refueling outagePoint Beach 1 began a routine refueling outage on October 10, 2026, starting exactly on its planned date. The 598-MW Westinghouse two-loop pressurized water reactor entered the fall maintenance window after completing about 100 percent of its typical 548-day operating cycle.
Outage NewsNEW Browns Ferry 1 completes Fall refueling outage in 28 daysTennessee Valley Authority completed a scheduled refueling outage at Browns Ferry 1 one day ahead of its twenty-nine-day plan. The fall refueling run lasted twenty-eight days and ended after a one hundred forty-two-day unscheduled-outage-free streak.









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