Total megawatts of U.S. nuclear capacity offline right now (units in outages plus reduced power).
16,841
MW Offline
Percentage of total fleet capacity currently online and generating power.
82.6%
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).
2
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: Byron 2 48%, D.C. Cook 1 97%.
2
Starting UpByron 2 +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, 709 days online without a shutdown.
2
Breaker-to-BreakerOconee 1 709d
Vermont Yankee is in
Nuclear NewsNEW Palisades setbacks put nuclear safety culture in the underwriting spotlightFederal regulators cited the Palisades nuclear plant for a chilled work environment within its supply chain and quality assurance departments. Inspectors found that employees feared retaliation for raising safety concerns. Additionally, workers experienced a fuel assembly tilt during reloading procedures at the Michigan facility.
Core Content
Core Content
Nuclear NewsNEW Could lab-made gold crash prices like diamonds? US start-up says it turned mercury into goldTurning mercury into gold? A US start-up says it has just done it San Francisco start-up Marathon Fusion announced it converted mercury into stable gold using fusion reactions. The company claims its method surpassed a previous record set by CERN by a factor of ten. The process uses neutrons to create an unstable isotope that decays into gold.Core Content
Core Content
Nuclear NewsNEW The challenge of securing uranium from seawater - podcastSupercritical Materials holds an exclusive license from the Department of Energy for patented technology to extract uranium from seawater. The company aims to deploy the extraction system in the Gulf of Mexico, targeting a commercial facility launch by 2033.Core Content
Core Content
Nuclear NewsNEW Data centers are reviving US nuclear construction, and the insurance work won’t be on the reactorRising electricity demand from tech data centers is reviving US nuclear construction plans. Insurance brokers and specialist markets are preparing for a surge in coverage needs for contractors, custom components, and new reactor designs. Standard commercial policies will handle non-nuclear work, while specialized pools cover the reactor cores.Core Content
Core Content
Nuclear NewsNEW Westinghouse to fabricate LEU+ fuel at expanded S.C. facilityWestinghouse plans a one billion dollar investment to build a new fuel fabrication facility in South Carolina. The plant will produce uranium enriched up to eight percent for commercial light water reactors, targeting commercial operation by 2030.Core Content
Core Content
Nuclear NewsNEW Deep Fission Signs Binding 25-Year Master Energy Purchase Agreement for Planned Commercial ProjectDeep Fission signed a binding 25-year master energy purchase agreement with the Great Plains Development Authority for a commercial project in Parsons, Kansas. The initial 150-megawatt phase targets commercial operation by September 2028, with potential expansion up to two gigawatts to supply large industrial users at the site.Core Content
Core Content
Nuclear NewsNEW Collaboration secures radioisotope supply to support US medical scansOak Ridge National Laboratory and the Missouri University Research Reactor established a domestic supply chain for gadolinium-153. The radioisotope is required to calibrate medical imaging equipment used in cancer and heart disease diagnostics.Core Content
Core Content
Nuclear NewsNEW Startup plans to rejuvenate the nuclear power industry with a new manufacturing approachMIT spinout Blue Energy is utilizing shipyard prefabrication to manufacture large modular components for nuclear power plants. The firm recently submitted an initial construction application to the Nuclear Regulatory Commission for a hybrid energy project scheduled in Texas.Core Content
Core Content
Nuclear NewsNEW Antares Clears First DOE Authorization Gate for Mark-1, Its Electricity-Producing ReactorThe United States Department of Energy approved the Nuclear Safety Design Agreement for the Mark-1 microreactor project. The authorization allows Antares to proceed toward generating electricity at the Idaho National Laboratory in 2027. Data from this upcoming test campaign will support subsequent commercial deployments and defense applications, including installations scheduled for 2028 under the Army Janus program.Core Content
Core Content
Outage NewsNEW Vogtle 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.Core Content
Core Content
Outage NewsNEW D.C. Cook 1 begins Fall 2026 refueling outageIndiana Michigan Power began a routine refueling outage at D.C. Cook 1 on 2026-09-19. The 1,009-MW Westinghouse 4-loop PWR started the maintenance period on the planned date with a scheduled duration of 32 days.Core Content
Core ContentOutage NewsNEW Vogtle 2 completes Fall refuel in 40 days, caps 529-day B2B runVogtle 2 finished its routine refueling outage 3 days early, completing the work in 40 days instead of the planned 43 days during the fall season. By the NRC report of Oct 26, 2026, the unit was back at full power of 98%. The 40 day duration ranks as the third-longest among the unit's 19 tracked refuels, running 12 days above the average of 28 days for 18 prior refuels.Core Content
Core Content
Outage NewsNEW Dresden 3 begins Fall 2026 refueling outageDresden 3 began a routine refueling outage on Oct 26, 2026, starting 1 day earlier than planned. The fall outage commenced after the unit had run about 98% of its typical 724-day operating cycle. Historically, the unit maintains a 19.9-day average across 14 prior refuels, with its longest prior refuel reaching 40 days in 2004.Core Content
Core Content
Outage NewsNEW Byron 2 begins Fall 2026 refueling outageByron Unit 2 began a scheduled refueling outage on September 28, 2026, starting precisely on its planned date. The 1,136-MW Westinghouse four-loop pressurized water reactor entered the fall maintenance period following a 3637-day unscheduled-outage-free streak.Core Content
Core Content
History & TriviaNEW How Close Were the Nazis to a Nuclear Bomb?During World War II, Nazi Germany and the United States pursued rival nuclear weapons programs. While the American Manhattan Project succeeded, the German project failed to build a functioning nuclear reactor or weapon due to severe resource shortages and technical hurdles. Historical analysis and recent scientific studies show that the German team lacked sufficient uranium and pure heavy water to sustain a chain reaction. This historical divergence highlights how industrial scale, material purity, and centralized resources dictate the success of nuclear development efforts. Behind the lines of World War II, the United States and Germany engaged in a nuclear arms race. Adolf Hitler with Nazi war generals, studying maps at Hitler's headquarters. The discovery of nuclear fission in late 1938...Core Content
Core Content
Site NewsNEW New: RCT Part 2 Practice Test, NRRPT & CHP Additions, & More Free TriviaWe are very excited to announce that the NukeWorker Quiz now includes the DOE RCT Core Part 2: Site Academics , all 19 modules: completes the DOE RCT Core. Part 1, Part 2 and a Comprehensive Examination over both Part 1 & 2 are all in the quiz now, 48 practice tests drawing from 1,819 questions. New: RCT Core Site Academics (DOE Part 2) 19 module quizzes: RCT Core 2.01 Radiological Documentation through 2.19 Counting Room Equipment. Dosimetry, contamination control, respiratory protection, source control, work coverage, shipments, incidents, decon, first aid and the instrument modules are all...
Rennhack
Rennhack
Site NewsNEW Radiation Instrument Index, 129 Meters with Specs & ManualsThe Radiation Instrument Index is live: radiation protection instruments on one page, from the RO-2 and the NP-2 Snoopy to the current PCMs, CAMs and EPDs. Find the meter your site runs, see what the DOE RCT exam calls it, and open the manual. What Every Entry Gives You The exam's name for it: every meter is mapped to the generic type the DOE RCT exam asks about. Ion chamber, GM pancake probe, ZnS alpha probe, gas flow proportional PCM, moderated BF3 or He-3 rem meter. What is on your shelf lines up with what is on the test. Manufacturer specs: detector, window, what it detects, and range. For...Rennhack
Rennhack
We are very excited to announce that the NukeWorker Quiz now includes the DOE RCT Core Part 2: Site Academics, all 19 modules: That completes the DOE RCT Core. Part 1, Part 2 and a Comprehensive Examination over both Part 1 & 2 are all in the ...
The Radiation Instrument Index is live: 129 radiation protection instruments on one page, from the RO-2 and the NP-2 Snoopy to the current PCMs, CAMs and EPDs. Find the meter your site runs, see what the DOE RCT exam calls it, and open the manual....
Missed a question on one of our practice tests? Now the answer sheet tells you exactly where to go study it.When you finish a NukeWorker practice test, the answer sheet shows each question, the answer you picked, and the correct answer. Now most q...
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...