Total megawatts of U.S. nuclear capacity offline right now (units in outages plus reduced power).
18,177
MW Offline
Percentage of total fleet capacity currently online and generating power.
81.2%
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).
16
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: Hatch 1 3%, Limerick 1 66%.
2
Starting UpHatch 1 +1
Units on a qualifying Breaker-to-Breaker run: continuous operation exceeding their cycle-adjusted threshold with no trips to 0% power. Longest current run: Oconee 1, 699 days online without a shutdown.
3
Breaker-to-BreakerOconee 1 699d
History & TriviaNEW The 1946 Law That Put America’s Atomic Bombs Under Civilian ControlThe 1946 Law That Put Atomic Bombs Under Civilian Control | HISTORY The U.S. faced an unprecedented question after World War II: Should civilians or the military oversee its nuclear ars... All the major chapters in the American story, from Indigenous beginnings to the present day. History from countries and communities across the globe, including the world’s major wars. From prehistory, though antiquity and into the 21st century, all of history’s biggest chapters. Read the full article at HISTORY :
Core Content
Core Content
_16382.jpg)
Nuclear NewsNEW Kairos Power automates fuel pebble inspectionsKairos Power opened a new facility in Albuquerque, New Mexico, featuring an automated system to inspect and engrave fuel pebbles for its fluoride salt-cooled high-temperature reactors. The system measures physical dimensions and uses lasers to verify structural integrity before marking each TRISO fuel pebble with a unique tracking code. This infrastructure aims to improve material accountability and support commercial scale manufacturing for upcoming test units.Core Content
Core Content
Nuclear NewsNEW Fusion startup picks Tri-Cities for advanced nuclear plantAvalanche Energy announced plans to invest one billion dollars to build a fusion reactor manufacturing facility in the Tri-Cities region of Washington. The project will employ up to one thousand workers to develop and produce compact fusion devices for diverse power applications.Core Content
Core Content
Nuclear NewsNEW A 50-year-young testbed for the atomic future: Inside the PULSTAR research reactorThe North Carolina State University PULSTAR research reactor continues to support advanced nuclear materials testing and reactor innovation after operating for over fifty years. The one-megawatt open pool facility provides specialized neutron and positron beams to evaluate structural components, fuels, and sensors under extreme radiation conditions.Core Content
Core Content
Nuclear NewsNEW How to Streamline Nuclear Approvals While Preserving Independent Safety ReviewResearchers at Columbia University's Center on Global Energy Policy propose granting the Advisory Committee on Reactor Safeguards the discretion to select which applications to review. The policy analysis suggests moving away from mandatory automatic reviews for all nuclear applications to help streamline the regulatory process.Core Content
Core Content
Nuclear NewsNEW DOE UpdateEM Leaders Survey Legacy Cleanup Progress at Three Sites in Empire State; Walsh Highlights Federal Land as Launchpad for Nuclear Growth at Summit; and much more! Department of Energy environmental management officials recently toured nuclear legacy sites across New York to review cleanup progress. Assistant Secretary Tim Walsh also spoke at a South Carolina summit regarding federal land reuse. Meanwhile, contractors at the Hanford Site safely isolated contaminated gloveboxes to reduce maintenance costs.Core Content
Core Content
Nuclear NewsNEW Durability where it countsNuclear utilities continue investing in long-term plant maintenance and uprate projects while federal energy policies experience rapid changes under recent Department of Energy and Nuclear Regulatory Commission initiatives. Industry stakeholders warn that achieving commercial success requires stable regulatory frameworks that survive political shifts and protect multi-decade investments.Core Content
Core ContentNuclear NewsNEW Three fusion companies in DOE’s Milestone program have updatesThree participants in the Department of Energy fusion program have announced technical progress and new funding agreements. Xcimer Energy secured additional funding for its laser system, Zap Energy met capacitor design goals, and Commonwealth Fusion Systems joined an artificial intelligence project.Core Content
Core Content
Nuclear NewsNEW Chernobyl updates: Stable fuel particles, solid waste disposalResearchers analyzing radioactive debris from Chernobyl found that the crystalline structures of six hot particles remained intact, indicating that the fissile material is more stable than previously thought. Concurrently, the Industrial Complex for Solid Radioactive Waste Management at the site shipped its first batches of low- and intermediate-level waste to a nearby disposal facility.Core Content
Core Content
Nuclear NewsNEW Kemmerer Plans For 1,600 Nuclear Plant Workers In Limbo After Contractor Backs OutHousing plans for the construction workforce of the Kemmerer nuclear project face uncertainty after lead contractor Bechtel ended its agreement with TerraPower. City officials responded by extending a land lease option for a potential temporary housing facility while awaiting a replacement contractor.Core Content
Core Content
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.Core Content
Core Content
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.Core Content
Core Content
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.Core Content
Core Content
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.Core Content
Core Content
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.Core Content
Core Content
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.Core Content
Core Content
Our long-range outage projections just got sharperNukeWorker's 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 dat...
Every Outage Finally Has a NameIf you have worked an outage, you know it has a name. Nobody at the tool crib says "the spring outage at Catawba." They say . It is on the badge, on the schedule, on the coffee cup somebody had printed.For ...
New on the facility map: see who's hiring at a glanceThe facility map got a pretty good overhaul. A few things on there now that I think you'll actually use:Jobs are on the map now. Top-right of the map there's an Open Jobs button. Hit...
Did You Know NukeWorker Has Online Practice Exams? (Now With Certificates)Here is something a lot of folks in the field do not realize: NukeWorker has a full library of online practice exams for radiation protection and radiological control worker...
The NukeWorker Reactor Status MapIf you have ever wanted to know which plants are running, which are down for an outage, and which one just tripped offline, all on a single screen, that is exactly what the NukeWorker Reactor Status Map on our home...
We have recently updated the with over 1,500 new aerial and facility images.Some of the latest additions include high-quality views of:Research & Academic Facilities: Rhode Island Atomic Energy Commission, MIT Nuclear Research Reactor (MITR),...
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 day-by-day operating history into initiating-event frequencies and data-analysis parameters, with the Bayesian work shown. If you k...
We've launched a new board, Outage News: a running record of refueling and forced outages across the entire U.S. nuclear fleet.The community has always been good at sharing what's happening on the ground. Outage News sits alongside that as...
New Feature: RadNet Radiation Map Now OnlineWe're excited to announce a major addition to the Facility Information suite: the .It brings EPA's environmental radiation data together with our nuclear facility database, giving a national view...
We have updated the "Current Reactor Status" section on our facility information pages to provide a much more detailed and intuitive look at plant performance and operational history.You can see the new layout and logic in action on thes...
🔎 Deep Dive: Everything You Can Track on the Facility Info PagesHey everyone, I've been digging through the updated Facility Information sections here on Nukeworker. Whether you're a road warrior planning your next outage or an engineer tr...
The Nuclear Grid Capacity & Generation Analysis dashboard provides a centralized interface for monitoring and analyzing the performance of the U.S. nuclear fleet. This tool utilizes both real-time metrics and long-term historical trends.
Below ...
We made a new tool fro you:The Operating Reactor Scram Dashboard is a comprehensive analytical tool designed for monitoring and analyzing U.S. commercial nuclear power plant trip events. It centralizes raw data from the Nuclear Regulatory Commissi...
I am very excited to announce a major upgrade to the NukeWorker Outage Schedules!We now independently project expected outage extensions beyond officially published schedules using our new 'Amber Bar' forecasting. We aren't just follow...
NukeWorker's preliminary schedule for Spring 2027 projects 29 nuclear outages, signaling a high-demand season for specialized contractors and traveling craft. Activity is concentrated in the Northeast and Southeast regions from March to early ...
The Fall 2026 nuclear maintenance season features 25 scheduled outages, with peak workload activity projected for late September through October. Contractors are advised to monitor schedules closely, as dates are subject to change based on grid de...
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, technical marvels, and daily life of the nuclear industry. Today, we're excited to announce a major update to the gallery's design, ...
We've just rolled out a major update to the NukeWorker homepage. While the new "Situation Room" layout looks great, the real power lies in the deep industry intelligence these tools now provide at a single glance.Master the Outage Season...
I split the 'Nuclear Discussions' from the 'Nuclear News' posts on the front page.Enhanced the titles (narrower font) so they display 10 more characters of the titles on the page.On hover, it shows the full title.And a new easy to ...
I've updated the homepage Job Feed with a few key features designed to make it fairer for employers and easier for job seekers to spot the latest opportunities.1. No More "Front Page Flooding" I've implemented a 3-job cap per employer. T...