Total megawatts of U.S. nuclear capacity offline right now (units in outages plus reduced power).
1,573
MW Offline
Percentage of total fleet capacity currently online and generating power.
98.4%
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).
0
Reduced Power
Units nearing the end of their fuel cycle, gradually lowering power before an outage.
6
Coastdown
Units increasing power following an outage or scram.
1
Starting Up
Units on a qualifying Breaker-to-Breaker run: continuous operation exceeding their cycle-adjusted threshold with no trips to 0% power.
13
Breaker-to-Breaker
Nuclear NewsNEW Opinion: Modern regulation for a new nuclear eraThe Nuclear Regulatory Commission has proposed a modernization of its radiation protection framework to replace subjective expectations with a graded, objective approach. The agency maintains that current dose limits for workers and the public will remain unchanged under the new rules. This proposal aims to provide clearer, predictable requirements for licensees. The shift seeks to replace the open-ended ALARA standard with defined thresholds to reduce regulatory uncertainty for advanced reactor developers and existing operators. By establishing technically defensible requirements, the NRC intends to streamline oversight while maintaining safety standards. This rulemaking process reflects an effort to adapt regulatory structures to support the deployment of new nuclear technologies while e...
Nuclear NewsNEW PNNL Leads International Exercise to Strengthen Nuclear ForensicsPacific Northwest National Laboratory recently concluded the eighth Collaborative Materials Exercise, an international effort involving 26 countries and 27 laboratories. The simulation tested investigative responses to nuclear materials found outside of regulatory control. Participants analyzed evidence to determine material origins, safety risks, and potential connections to broader security threats. These recurring exercises standardize global forensic capabilities and improve coordination between scientists and law enforcement agencies. By practicing the analysis of radiological evidence al...
Nuclear NewsNEW U.S. Nuclear Power Plant Restarts Gain Momentum with PNNL SupportPacific Northwest National Laboratory is assisting the Nuclear Regulatory Commission in streamlining environmental reviews for retired nuclear power plants seeking to resume operations. The Palisades Nuclear Plant in Michigan serves as the initial model for this process, completing its environmental assessment in under 12 months to meet federal policy requirements. This regulatory framework establishes a precedent for other decommissioned facilities, including the Three Mile Island and Duane Arnold sites, to return to the grid. By coordinating across multiple federal statutes, the initiative a...
Nuclear NewsNEW New York’s big new bet on nuclear energyGov. Hochul, a Democrat, diluted New York’s climate law this year amid struggles to build large-scale renewables. Now, she’s looking to nuclear power. Read the full article at Canary Media :
Nuclear NewsNEW Three Questions Every Utility Should Ask About Advanced ReactorsU.S. power demand could jump 20% by 2035. A Terrestrial Energy exec outlines 3 tests for advanced reactor technology. Read the full article at POWER Magazine :
Nuclear NewsNEW NANO Nuclear and Howden, a Baker Hughes Business, Advance Engineering Collaboration for the KRONOS MNANO Nuclear Energy and Howden, a Baker Hughes business, have moved the primary helium circulator for the KRONOS MMR micro modular reactor into the detailed design phase. This transition follows the completion of three-dimensional modeling, engineering analyses, and formal design reviews conducted by the two companies to support the reactor system. The helium circulator serves as a mechanical subsystem responsible for coolant circulation and heat transfer within the high-temperature gas-cooled reactor. Successful development of this component is necessary for the reactor to achieve its thermal...
Nuclear NewsNEW Project to consider trans-Atlantic nuclear-powered cargo shipsLloyd's Register, Maersk, and the ports of Charleston and Felixstowe have launched the Pink Corridor project to evaluate security and safeguard requirements for nuclear-powered container ships. The partnership will analyze the regulatory and operational frameworks necessary for these vessels to access major ports on a trans-Atlantic route. This initiative addresses the non-technical barriers to maritime nuclear adoption, such as international regulatory alignment and port governance. As the shipping industry seeks to meet net-zero emission targets by 2050, this work provides a foundation for i...
Nuclear NewsNEW Governor Kim Reynolds today announced the completion of the final report from the Iowa Nuclear EnergGov. Reynolds releases final report from Iowa Nuclear Energy Task Force Gov. Reynolds announced the completion of the final report from the Iowa Nuclear Energy Task Force. Read the full article at Governor Kim Reynolds :
Outage NewsNEW Dresden 2 trips offline, unscheduled outage underwayDresden 2 entered a forced short outage on 2026-09-04, ending a streak of 1226 days without an unscheduled outage. This event marks the first forced outage for the 902-MW General Electric BWR/3 unit during the 2026 calendar year. The unit, which has been in commercial operation since 1970, recorded zero forced outages throughout 2025. Constellation Nuclear operates this unit alongside 20 other U.S. nuclear units. Across the current fleet of 94 units, the industry reports a 98.3 percent capacity factor with one unit currently in an unscheduled outage and zero units in refueling. MORRIS, IL. Dresden 2 entered an unscheduled outage on Sep 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 the first unschedul...
Outage NewsNEW Browns Ferry 2 trips offline, unscheduled outage underwayBrowns Ferry 2 began an unscheduled forced short outage on August 27, 2026. This event ended a 448 day streak of operation without an unscheduled outage for the 1,259-MW General Electric BWR/4 unit. The unit has recorded one forced outage so far in 2026, compared to two forced outages during the entirety of 2025. Tennessee Valley Authority operates this unit along with six other U.S. nuclear units. Across the industry, 94 units are currently operating at a 97.6 percent capacity factor, with two units currently in unscheduled outages and zero units in refueling. ATHENS, AL. Browns Ferry 2 dropp...
Outage NewsMonticello 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...
Nuclear SoftwareNEW Looking for Rados softwareHey y'all! I'm in the HPT class at the College of East Idaho, and my lab teacher has a Rados ADR-1 sentinel(term check?) that he wants to use, but can't because he doesn't have software for it. Can anyone help with getting software for the class? Also, the plug appears to be an old RGB plug. Can I just get an RGB-usb adapter to make that work?Thanks! -Andy
History & TriviaNEW The Hiroshima Atomic Blast Forged a Metal Never Seen Before on EarthGeologists led by the University of Florence have identified a previously unknown iron-chromium alloy within microscopic fallout debris from the 1945 Hiroshima atomic bombing. The 10-micrometer grain exhibits a complex, highly ordered cubic crystal structure that formed due to the extreme temperatures and rapid cooling rates of the nuclear fireball. This discovery highlights that nuclear blast debris contains a unique library of metastable materials that are difficult to replicate in laboratory settings. For the nuclear industry, these findings demonstrate that fallout particles serve as a phy...
DC CookNEW Newly Renovated Furnished 2Br rental near D.C. CookD.C. Cook outage housing available in Stevensville for September/October.We have furnished 2BR / 1.5BA units available for outage workers, with full kitchen, in-unit washer/dryer, Wi-Fi, utilities, and parking included. Each unit has 1 king bed and 2 queen beds and works well for 1–2 workers or coworkers sharing a unit.Weekly and 4–6 week stays available. We also have two neighboring units, so we may be able to accommodate a small crew that wants to stay close together while still having separate living space.Located in Stevensville with convenient access to D.C. Cook.Message me for availability, photos, and outage-worker rates.goosewalrusstays@gmail.comTim973-997-8024









Every Outage Finally Has a NameIf you have worked an outage, you know it has a name. Nobody at the tool crib says &qu...
New on the facility map: see who's hiring at a glanceThe facility map got a pretty good overhau...
Did You Know NukeWorker Has Online Practice Exams? (Now With Certificates)Here is something a lot of folk...
The NukeWorker Reactor Status MapIf you have ever wanted to know which plants are running, which are down for an outa...
We have recently updated the with over 1,500 new aerial and facility images.Some of the late...
The Fall 2026 U.S. nuclear refueling outage schedule has been released. 25 units are scheduled to refuel this season.
POET: plant-specific PRA inputs, built from the operating recordA new tool on NukeWorker turns the U.S. fleet's...
We've launched a new board, Outage News: a running record of refueling and forced outages across ...
New Feature: RadNet Radiation Map Now OnlineWe're excited to announce a major addition to the Facility Info...
We have updated the "Current Reactor Status" section on our facility information pages ...
🔎 Deep Dive: Everything You Can Track on the Facility Info PagesHey everyone, I've been digging thr...
The Nuclear Grid Capacity & Generation Analysis dashboard provides a centralized interface for monitoring and...
We made a new tool fro you:The Operating Reactor Scram Dashboard is a comprehensive analytical tool designed fo...
I am very excited to announce a major upgrade to the NukeWorker Outage Schedules!We now independently project...
NukeWorker's preliminary schedule for Spring 2027 projects 29 nuclear outages, signaling a high-d...
The Fall 2026 nuclear maintenance season features 25 scheduled outages, with peak workload activity proje...
The Spring 2026 nuclear outage season is underway with 34 scheduled maintenance and refueling outages. View the full schedule at .
We've given the entire quiz section a major facelift to make your study sessions smoother and easier on the eyes.
The NukeWorker Photo Gallery has long been the primary destination for our community to share the history, te...
We've just rolled out a major update to the NukeWorker homepage. While the new "Situation Room&quo...
I split the 'Nuclear Discussions' from the 'Nuclear News' posts on the front page.Enhanced the titl...
I've updated the homepage Job Feed with a few key features designed to make it fairer for employers and easier for ...