Total megawatts of U.S. nuclear capacity offline right now (units in outages plus reduced power).
2,048
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).
2
Units Offline
Units operating between 1-99% power (excluding known startups or coastdowns).
3
Reduced Power
Units nearing the end of their fuel cycle, gradually lowering power before an outage.
2
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.
11
Breaker-to-Breaker
Outage NewsNEW Saint Lucie 1 trips offline, unscheduled outage underwaySaint Lucie 1 began an unscheduled forced short outage on August 14, 2026. This event ended a streak of 635 days without an unscheduled outage at the 981-MW Combustion Engineering pressurized water reactor. This forced outage is the first for the unit in 2026, following a year in 2025 with zero forced outages. Florida Power and Light operates this unit along with three other nuclear units in the United States. Across the industry, 94 units are currently operating at a 97.8 percent capacity factor, with Saint Lucie 1 and Monticello as the only two units in unscheduled outages. The next planned refueling for Saint Lucie 1 is expected next spring. FT. PIERCE, FL. Saint Lucie 1 entered an unscheduled outage on Aug 14, 2026 . The NRC has not yet issued an event notification for this trip; a fol...
Outage NewsNEW Monticello trips offline, unscheduled outage underwayMonticello entered an unscheduled forced short outage on August 10, 2026, ending a 130-day streak of outage-free operation. This event marks the second forced outage for the 617-MW General Electric BWR/3 unit during the 2026 calendar year. The unit, which has been in commercial operation since 1971, recorded four forced outages throughout 2025. Northern States Power Co - Minnesota operates this facility along with two other U.S. nuclear units. Across the industry today, 94 units are maintaining a 97.9 percent capacity factor, with this unit currently representing the only facility in an unsche...
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...
Nuclear NewsNEW Porous tungsten scrubbed by glow discharge cleaningResearchers at the Princeton Plasma Physics Laboratory demonstrated that glow discharge cleaning removes carbon and oxygen contaminants from porous tungsten samples used in fusion reactors. By exposing the material to neon plasma and heat within the Lithium Tokamak Experiment-Beta, the team successfully cleared pore blockages. This in situ process allows for the maintenance of liquid lithium-facing components without requiring the removal of hardware from the vacuum vessel. Researchers conducted experiments in Princeton Plasma Physics Laboratory’s Lithium Tokamak Experiment-Beta (LTX-β) showing glow discharge cleaning can be used to effectively clean samples of porous tungsten—used to hold liquid lithium in fusion machine inner walls—manufactured from powder-reconstituted materials, according to a paper published in… Tungsten is widely used for plasma-facing components in fusion machines, especially in the divertor region where materials must withstand extreme levels of power flow. According to the paper, spark plasma sintering can be used to make tungsten into spongelike samples for holding liquid lithium. Advantages of the manufacturing process include scalability, low processing time, and low cost. However, the powder-reconstituted materials and exposure to air leave the material contaminated with carbon and oxygen. Read the full article at ans.org :
Nuclear NewsNEW LIS Technologies Announces $6.2M Acquisition of the 37,800sq-ft K-1580 Facility at the Historic HeriLIS Technologies acquired the 37,800 square-foot K-1580 facility at the Heritage Center in Oak Ridge for $6.2 million. The company plans to use the site to expand its production capabilities for medical and stable isotopes using its proprietary laser enrichment technology. This new facility sits adjacent to the company's existing K-1330 test demonstration site. Totaling over 37,800 sq.-ft, the addition of the K-1580 Building complements LIST’s growing real estate portfolio and footprint, building on its existing... **Oak Ridge, Tennessee, Aug. 12, 2026 (GLOBE NEWSWIRE) -- LIS Technologies Inc....
Nuclear NewsNEW Researchers uncover hidden pore network within nuclear fuelResearchers from MIT, Idaho National Laboratory, and Brookhaven National Laboratory used high-energy synchrotron X-ray computed tomography to map three-dimensional pore networks in irradiated U-10Zr metallic fuel. The study analyzed samples from the decommissioned Fast Flux Testing Facility to determine how internal fuel structures evolve and interact with protective cladding during fission. These findings challenge existing two-dimensional models that characterize pores as simple spheres. By revealing complex, interconnected pore channels that facilitate the migration of fission products and...
Nuclear NewsNEW US poll finds support for deep geologic disposalA YouGov survey commissioned by Deep Isolation indicates that 81 percent of Americans view permanent high-level radioactive waste disposal as a national priority. While 65 percent of respondents expressed support for deep borehole disposal after reviewing technical information, only 28 percent favored the continued long-term storage of used fuel at reactor sites. The findings highlight a disconnect between public expectations and the current status of the US waste management program. With approximately 95,000 tonnes of used fuel currently held at reactor sites, the industry faces ongoing press...
Site NewsEvery 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...
Radiation SafetyKyle HillGreat post, Marlin! I wasn't aware this change was getting YouTube traction lol. Thanks for the link.
Radiation SafetyRadiation Protection AIthose that have a chatgpt subscription. Another great tool for RCT's, Rad Engineers or CHP's









Every Outage Finally Has a NameIf you have worked an outage, you know it has a name. Nobody at the tool crib says &qu...
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