Total megawatts of U.S. nuclear capacity offline right now (units in outages plus reduced power).
17,448
MW Offline
Percentage of total fleet capacity currently online and generating power.
82.4%
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).
17
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.
0
Starting Up
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.
2
Breaker-to-BreakerBraidwood 2 13.3y
Watts Bar Nuclear Plant is located in which state?
Nuclear NewsNEW US bets on thorium molten salt technology to turn nuclear waste into reactor fuelUS eyes thorium molten salt reactors to turn nuclear waste into fuel The Department of Energy awarded $5.4 million to the Texas A&M Engineering Experiment Station to develop reactor fuel technology utilizing thorium molten salt systems. Researchers aim to convert long-lived radioactive waste into usable energy sources through collaboration with the Savannah River National Laboratory and Natura Resources. This initiative addresses long-term spent fuel management challenges while advancing alternative reactor designs.
Core Content
Core Content
Nuclear NewsNEW Game of Thrones actor aims to highlight Chernobyl's need for international supportGame of Thrones actor aims to highlight Chernobyl's need for international support Actor and United Nations Goodwill Ambassador Nikolaj Coster-Waldau visited the Chernobyl site to produce a documentary highlighting ongoing security and restoration challenges. Plant officials discussed the urgent need for international financial support to repair the New Safe Confinement following wartime damage, alongside preparations to maintain reliable power supplies ahead of winter.Core Content
Core Content
Nuclear NewsNEW Trump DOE takes victory lap at Biden-financed Palisades nuclear projectU.S. Energy Secretary Chris Wright visited the Palisades nuclear plant to highlight the ongoing restart project. During the event, officials announced no new funding or operational milestones. Plant owner Holtec International declined to confirm the administration's projected restart timeline.Core Content
Core Content
Nuclear NewsNEW Predicting when each HFIR nuclear fuel cycle ‘turns off’Researchers at Oak Ridge National Laboratory have developed a predictive software tool for the High Flux Isotope Reactor. The program forecasts the exact date and time when operating cycles exhaust their uranium fuel supply with high precision.Core Content
Core Content
Nuclear NewsNEW Yucca Mtn. clause, now blocking nuclear campus program, could be removed in lame duck: Fleischmann sRep. Chuck Fleischmann aims to remove the legal designation of Yucca Mountain as the sole nuclear waste repository during the upcoming congressional lame duck session. Repealing this restriction would allow the Department of Energy to advance its Nuclear Lifecycle Innovation Campus program in willing states. The proposed legislative changes would also encourage commercial spent nuclear fuel reprocessing.Core Content
Core Content
Nuclear NewsNEW NRC eyes advanced reactor oversight program for new reactorsThe Nuclear Regulatory Commission held a public meeting to discuss early plans for an Advanced Reactor Oversight Process tailored to non-light water reactors, small modular reactors, and microreactors. Agency staff plan to submit a draft policy paper on the framework to commissioners by May, following a mandate in the ADVANCE Act.Core Content
Core Content
Nuclear NewsNEW Nuclear energy company Applied Atomics establishes headquarters in New OrleansApplied Atomics is investing $8.2 million to build a new corporate headquarters and training center in New Orleans. The facility will support the development of modular light-water reactors and include a non-nuclear test system for operator training. The project is expected to create dozens of direct engineering and trade jobs ahead of a planned 2031 commercial plant launch.Core Content
Core Content
Nuclear NewsNEW Data breach hits nuclear power plant operator in South TexasSTP Nuclear Operating Company reported a data security incident to the Texas attorney general after personal information belonging to nearly 1,200 individuals was compromised. Plant operators confirmed that the breach did not affect nuclear safety, plant operations, or security systems.Core Content
Core Content
Nuclear NewsNEW NRC Completes Landmark Safety Review of X-energy’s Xe-100 SMRNRC Completes Safety Review of X-energy's Xe-100 SMR | X-energy The Nuclear Regulatory Commission finalized its safety evaluation report for X-energy's Xe-100 high-temperature gas-cooled reactor design. The review clears the technical path for the proposed Long Mott Generating Station in Texas, marking the first time an advanced reactor design has reached this stage for an industrial site.Core Content
Core Content
Outage NewsNEW Cooper begins Fall 2026 refueling outageCooper began a routine refueling outage on September 28, 2026, starting two days later than its scheduled September 26 start date. The 772-megawatt General Electric boiling water reactor entered the refueling window after running about 100 percent of its typical 647-day operating cycle.Core Content
Core ContentOutage NewsNEW Cooper trips offline, unscheduled outage underwayCooper entered an unscheduled outage and was reported at 0% power in the NRC daily report of Nov 2, 2026. This marks the 1 forced outage for the unit so far in 2026, compared to 0 in all of 2025, closely following a 34-day refueling outage that ended Oct 31, 2026. The NukeWorker forced-outage duration projection is about 4 days.Core Content
Core Content
Outage NewsNEW Oconee 1 begins Fall 2026 refueling outageOconee 1 began a routine refueling outage on Oct 31, 2026, starting 3 days earlier than its scheduled start of Nov 3, 2026. The unit entered this refuel following an end-of-cycle coastdown lasting 14 days, during which output drifted from 97% to 87%. Going into this refuel, the plant had gone more than 7 years without an unscheduled outage and had run about 100% of its typical 627-day operating cycle.Core Content
Core Content
Site NewsNEW Radiation Instrument Index, 193 Meters with Specs & ManualsThe Radiation Instrument Index just grew: replies did this. The page now has 193 instruments, up from 129, and 128 of them have the manual on file, up from 66. You Asked, It's There RDS-32 and the Tele-STTC-2: the RDS-32 and its wide range telescoping probe are on the page, with Mirion's specs and the RDS-32 user manual. ISOCS and HPGe: search HPGe or specific activity and ISOCS comes up, along with the BEGe and GEM germanium detectors. 64 New Instruments Friskers and probes: Ludlum 177, 2401-P, 2224-1, 44-10, 44-3, 43-1, 44-7 and the 239-1F floor monitor, Eberline E-140, E-600 and ESP-1, Canb...
Rennhack
Rennhack
History & TriviaHow 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 o...Core Content
Core Content
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...