Outage Schedule FAQ

It is a forward-looking schedule of nuclear refueling outages for the entire U.S. commercial reactor fleet. For each unit it shows the utility's published start date, duration, and end date, as well as our own projected dates, so traveling nuclear workers, contractors, and suppliers can plan where and when work is coming.

We combine three things, updated continuously:

• The utilities' own published schedules, with announced dates and durations.
• Daily reactor status from the NRC power reactor status reports (who is online, offline, or in startup).
• Each unit's full outage history, going back over 27 years.

Our Predictive Model uses a multi-stage pipeline that combines traditional cycle analysis with an ensemble of machine learning models to project the future outages utilities have not yet announced, and to flag likely extensions on the ones they have.

A published (or official) date is what the utility itself has announced. A projected date is our Predictive Model's projection. We show both, clearly labeled, so you can see where they agree and where they differ. When our model expects a unit to run long, it shows a projected extension beyond the published end date, which is where a lot of the planning value is.

Our Predictive Model projects outage start dates with 99.6% accuracy, and our end-date projections are 83% more accurate at projecting extensions than the utilities' own published schedules. Every projection is tracked publicly on our accuracy scorecard.

Every day. New NRC reactor status, newly published utility dates, and model refreshes are imported each morning, so the schedule and the live fleet status stay current. Active subscribers also get an email whenever their season's schedule changes.

The tiers differ by how far ahead and how far back you can see. Every paid tier shows the current published schedule as well as the projected schedule for the seasons it covers (start dates, durations, and projected extensions) and can export those seasons to PDF or CSV.

Tier	Price	How far ahead	How far back
Free	$0	Last season (sample)	Current + last
Worker	$67.99 / 6 mo	Current season	Current + last
Planner	$199.99 / yr	Current + next	Back 2 seasons
Forecaster	$499.99 / yr	18 months	Back 3 seasons
Analyst	$999.99 / yr	24 months	Full 25+ year archive

Analyst also adds the bulk historical-archive data download. See the plans page for full details.

Yes. Last season's complete schedule is free for everyone, including the Gantt timeline, projected vs published dates, and durations, so you can see exactly what the product looks like with real data before deciding. Open Fall 2025 (last season). The current and upcoming seasons are the subscriber product.

Yes, and it is genuinely useful:

• Live fleet status -- the current power level of every reactor: live reactor status.
• The History view -- what is in outage right now (what is currently in outage, but not the rest of the season) plus the last completed season: outage history.
• Historical outage charts and facility performance ratings.
• Last season's full schedule as a free sample.

It does not include the current or upcoming projected schedule, which is what the paid tiers add.

Plants refuel in two windows a year, defined by calendar half: Spring = January through June and Fall = July through December. Every outage belongs to one season, named with its year, for example Spring 2026 or Fall 2026.

Access to each upcoming season opens about six weeks before that season's calendar window starts, so you can plan ahead:

Season	Calendar window	Early access opens
Fall	July 1 to December 31	May 15
Spring	January 1 to June 30	November 15

On those two dates the schedule advances by one season for every tier, and we email subscribers to let them know.

Each tier sees a rolling number of seasons forward from the current one. During an early-access window (May 15 to June 30, and November 15 to December 31) every tier also gains the next upcoming season early:

Tier	Forward window	Seasons you can view
Worker	6 months	Current season
Planner	12 months	Current + next season
Forecaster	18 months	Current + next two seasons
Analyst	24 months	Current + next three seasons

History access mirrors how far forward your tier reaches, and the current plus last completed season are free for everyone:

Tier	History you can view
Free / Worker	Current + last season
Planner	Back 2 seasons
Forecaster	Back 3 seasons
Analyst	The entire archive, back over 25 years

Yes. On each early-access date (May 15 and November 15) we email active subscribers that the new season is now viewable, with a one-click link straight to it. The email is tailored to your tier, so you hear about the specific season you just gained.

We tell you the exact date that season unlocks for your current plan, and offer an upgrade if you want it right away. You never lose a season you can already see; the schedule only moves forward.

They point to the same schedules, just labeled differently. This season and next season are relative labels that roll forward over time, while a named season such as Fall 2026 always refers to that exact set of outages and has its own permanent page at /outages/schedule/fall-2026/.

The Schedule shows what we project will happen: the upcoming outages with projected starts, durations, and extensions. The History shows what did happen: the completed outages for past seasons. The current live status and the last completed season are free to view on History for everyone.

Yes. Any season you can view can be exported to both PDF and CSV. The full 25+ year historical archive also has a bulk data download, which is part of the Analyst tier.

Log in at the subscriber login with the email and license reference from your purchase. Our subscriber emails also include a one-click link that logs you in automatically. NukeWorker Forum Gold members get Worker-level access through their forum login.

Yes. The higher tiers include additional team seats (sub-accounts) so colleagues can log in under your subscription. You manage them from My Account.

Active subscribers receive an email whenever their season's schedule is updated, with the full set of changes (no teaser, the actual data), plus the twice-a-year email when a new season opens for early access.