Most answers are already on the site.
Which markets and units
Every operating U.S. reactor attributed to its balancing authority, across all seven organized markets plus the vertically integrated utilities. Ontario (IESO) is covered as a separate fleet, per unit.
How often it updates
The U.S. fleet lands once each morning, on the NRC’s publishing cadence. Scrams arrive the same day on a separate feed. Ontario refreshes hourly. Stated plainly, including what it is not.
Where the data comes from
Three named public sources, cited on every page, plus NukeWorker’s own outage schedule and projection engine. No confidential utility data and nothing under redistribution restriction.
What we actually predict
Every operating U.S. reactor’s next outage: which unit, what date it comes down, and how long it stays down. Refueling dates are not public and cannot be scraped; we source them through the outage network NukeWorker has run since 1999. The model fills only the units we do not yet hold a sourced date for.
How far ahead it runs
Six months on Individual, twelve on Pro, eighteen on Team / Desk. At twelve months only about 59% of units have had their next outage yet, so the longer horizons are where the remaining forty units’ refuelings come into view.
Getting it into your own systems
REST API returning JSON, full historical datasets and bulk export on Team / Desk and above. Endpoints, fields and rate limits are documented before you buy, not after.