Total megawatts of U.S. nuclear capacity offline right now (units in outages plus reduced power).
16,318
MW Offline
Percentage of total fleet capacity currently online and generating power.
83.2%
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).
3
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 current run: Oconee 1, 715 days online without a shutdown.
2
Breaker-to-BreakerOconee 1 715d
LaSalle County Station is located near:
Nuclear NewsNEW This month in Oak RidgeOctober Energycast; 2027 Cleanup Priorities; Waste Management Upgrades; and more Crews at the Oak Ridge Reservation completed major infrastructure upgrades and demolished ten legacy buildings during fiscal year 2026 while logging over 1.3 million safe work hours. Operators also installed a smartphone-based remote monitoring system at the Environmental Management Waste Management Facility to track landfill wastewater. These projects reduce environmental risks and support ongoing research missions at the federal site.
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Nuclear NewsNEW Hitachi’s nuclear revenue rises as SMR delivery date approachesHitachi reported a forty-eight percent year-over-year increase in its nuclear division revenue during the latest quarter. The growth aligns with preparations to deliver the first of four BWRX-300 small modular reactors to Ontario Power Generation by 2030. Additional deployments are scheduled for the Tennessee Valley Authority by 2032.Core Content
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Nuclear NewsNEW Walsh, industry reps discuss “American energy hub” at Oak Ridge cleanup siteDepartment of Energy officials and private nuclear executives met at the former Oak Ridge Gaseous Diffusion Plant in Tennessee. The gathering highlighted over fifteen billion dollars in ongoing commercial projects spanning fuel fabrication, enrichment, and advanced reactor development on remediated federal land.Core Content
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Nuclear NewsNEW Curtiss-Wright Invests $30M to Expand Nuclear Instrumentation Manufacturing in TexasCurtiss-Wright Corporation is allocating thirty million dollars to enlarge its Round Rock operations in Texas. The project boosts production capacity for pressure and temperature sensors, radiation monitoring systems, and other instrumentation utilized in nuclear energy facilities.Core Content
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Nuclear NewsNEW Centrus Begins Shipping Centrifuges to Ohio to Support Major Expansion of Uranium Enrichment CapacitCentrus Energy has completed and shipped the first newly manufactured uranium enrichment centrifuge from its facility in Oak Ridge, Tennessee. The hardware is bound for the company site in Piketon, Ohio. This delivery represents the initial tangible output of a domestic manufacturing restart intended to scale up domestic fuel production.Core Content
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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
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Nuclear NewsNEW How D.C. Cook built a culture of excellence and continuous improvementThe D.C. Cook nuclear plant received the Utilities Service Alliance Optimizer Award for the second consecutive year. Station leaders accepted the honor at the annual executive summit following a multi-year overhaul of their supply chain operations, warehouse organization, and vendor management practices.Core Content
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Nuclear NewsNEW US microreactor secures first-of-its-kind DOE approval for full-power operationsUS clears safety hurdle for extended nuclear microreactor testing Radiant has received Department of Energy approval for the Documented Safety Analysis of its Kaleidos microreactor at Idaho National Laboratory. The decision allows the company to pursue a five-phase testing campaign targeting 60 days of full-power operation. The results will provide critical operational data for the 1-megawatt transportable design ahead of planned commercial deliveries to military installations.Core Content
Core Content
Nuclear NewsNEW Federal agency accepts license application for General Matter’s uranium enrichment operation in McCrThe U.S. Nuclear Regulatory Commission has accepted the license application for a planned uranium enrichment facility in McCracken County, Kentucky. General Matter intends to construct the commercial plant on a parcel at the former Paducah Gaseous Diffusion Plant site, targeting full operations by 2029.Core Content
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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 ContentOutage NewsNEW Byron 2 completes Fall refuel in 27 days, caps 514-day B2B runThe Byron 2 routine refueling outage ran 6 days longer than the planned 21 days, totaling 27 days at 0% power. The 27 day duration ranks as the third-longest among the unit's 19 tracked refuels, following an outage period from Sep 28, 2026 to Oct 24, 2026. The unit returned to full power at 100% as of the NRC report of Oct 29, 2026, entering the refuel with more than 9 years without an unscheduled outage.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
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...