Total megawatts of U.S. nuclear capacity offline right now (units in outages plus reduced power).
18,677
MW Offline
Percentage of total fleet capacity currently online and generating power.
80.7%
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).
18
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 trip-free streak: Braidwood 2, 13.3 years since its last unplanned outage.
2
Breaker-to-BreakerBraidwood 2 13.3y
Nuclear NewsNEW EM UpdateOne Year In: EM Marks Historic Progress Under Assistant Secretary Walsh; Portsmouth Site Operators Train for Tools to Slice, Pulverize Legacy Facilities; and much more! The Department of Energy Office of Environmental Management marked its first year under Assistant Secretary Tim Walsh with completed radioactive waste removals and new facility milestones across multiple sites. At the Portsmouth Site in Ohio, operators completed specialized training on heavy-duty demolition equipment to prepare for the teardown of the massive X-333 process building.
Core Content
Core Content
Nuclear NewsNEW SRS fills first mega-volume disposal unit with groutThe Department of Energy announced that Saltstone Disposal Unit 6 at the Savannah River Site has been completely filled with grouted low-level waste. The 33-million-gallon structure is the first mega-volume disposal unit to reach capacity since accepting its initial shipment in 2018. This milestone supports ongoing cleanup operations for legacy waste stored in carbon-steel tanks at the South Carolina facility.Core Content
Core ContentNuclear NewsNEW Grants Reclamation Project: One remediation, multiple regulatorsGrants Reclamation Project: One remediation, multiple regulators NuCube Energy Secures $25 Million Anchor Investment from the Alaska Industrial Development and Export Authority
Marlin
MarlinNuclear NewsNEW NuCube Energy Secures $25 Million Anchor Investment from the Alaska Industrial Development and ExporThe Alaska Industrial Development and Export Authority has provided a twenty five million dollar anchor investment to NuCube Energy. The funds will support the development, manufacturing readiness, and regulatory licensing of the company's NuSun microreactor platform.Core Content
Core Content
Nuclear NewsNEW Deployable Energy Nuclear Power Application Wins 2026 SHIPPINGInsight AwardDeployable Energy received the 2026 SHIPPINGInsight Innovation Award for its Unity Nuclear Battery design during the annual fleet optimization conference in Houston. The company secured thirty-six million dollars in simulated investments from a panel of maritime industry judges for the one-megawatt modular system. This recognition highlights ongoing efforts to integrate advanced microreactors into maritime, defense, and remote industrial applications.Core Content
Core Content
Nuclear NewsNEW Deep Fission Signs Binding 25-Year Master Energy Purchase Agreement for Planned Commercial ProjectDeep Fission signed a 25-year energy purchase agreement with the Great Plains Development Authority for a planned commercial project in Kansas. The contract covers an initial 150-megawatt phase targeted for operation in September 2028, with potential expansion up to two gigawatts by 2031.Core Content
Core Content
Nuclear NewsNEW One Year In: EM Marks Historic Progress Under Assistant Secretary WalshThe Department of Energy Office of Environmental Management completed multiple cleanup milestones during the first year under Senate-confirmed Assistant Secretary Tim Walsh. Projects included finishing the removal of uranium tailings at the Moab Site, initiating tank waste vitrification at Hanford, and advancing ventilation upgrades at the Waste Isolation Pilot Plant.Core Content
Core Content
Nuclear NewsNEW NASA’s SR-1 Freedom Advances with Progress on Nuclear Power ModuleNASA and its partners have advanced development of the Space Reactor-1 Freedom spacecraft by contracting Sierra Lobo to build a closed Brayton cycle power conversion system. This equipment will integrate with a fission reactor designed by the Department of Energy's Idaho National Laboratory for the planned 2028 deep space flight.Core Content
Core Content
Nuclear NewsNEW Westinghouse Announces Landmark Expansion in South Carolina to Advance Next-Generation Nuclear FuelWestinghouse Electric Company is investing approximately one billion dollars to construct a new nuclear fuel manufacturing facility in Richland County, South Carolina. This project represents the first fleet-scale nuclear fuel factory built in the United States in over fifty years.Core Content
Core Content
Outage NewsNEW Waterford 3 begins Fall 2026 refueling outageWaterford 3 began its routine refueling outage on Oct 17, 2026, right on its scheduled start date with a planned duration of 25 days. The unit entered this fall outage following a streak of about 23 months without an unscheduled outage, having run about 89% of its typical 561-day operating cycle. Its 18 prior refuels averaged 49.9 days.Core Content
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Outage NewsNEW Susquehanna 1 trips offline, unscheduled outage underwaySusquehanna 1 began a forced short unscheduled outage on September 29, 2026. The event ended the 1,247-MW General Electric BWR/4 unit's unscheduled outage-free streak at 317 days.Core Content
Core Content
Outage NewsNEW Farley 2 begins Fall 2026 refueling outageFarley 2 began a routine refueling outage on Oct 19, 2026, 1 day later than the scheduled start date of Oct 18, 2026. The outage has a scheduled duration of 27 days. Prior to this event, the unit had run for about 16 months without an unscheduled outage and completed about 91% of its typical 548-day operating cycle.Core Content
Core Content
Site NewsNEW New in the Practice Tests: Study Help for the Questions You MissMissed 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 questions also have a Study Help box. It points you to the book, chapter and objective that cover that question.For example, if you miss an alpha monitoring question on the NUF practice exam, Study Help sends you to NUF Cram Notes, Chapter 8, Objective 8.2 . Open the book, go straight to that objective, and you’re studying the exact material the question is based on.Here’s where the questions point: DOE RCT Core: RCT Cram Notes, by chapter and objective NUF: NUF Cram Notes, by chapter and objective NRRPT and CHP: Basic Radiation Protection Technolo...
Rennhack
Rennhack
History & TriviaThe 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
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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.
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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...