Changelog

What has been added to the site itself, newest first. For what changed in the reactor world this week, see this week. Atom feed.

10 Oct 2026

Outages: 28 more reactors are now matched to the ENTSO-E feed, 104 operating units in total. Spain (all but Ascó 2) and Switzerland's Gösgen are added, and every operating French unit is now matched. Beznau 1/2, Temelín 1/2 and Dukovany 2-4 are still unmapped

7 Oct 2026

Outages: Spain's Cofrentes is now covered, the first Spanish unit to appear in the ENTSO-E feed, and Cruas 1 is mapped. Spain's other reactors are added as they file

28 Sep 2026

Outages outside the US now also cover France, Czechia and Switzerland, from the ENTSO-E Transparency Platform: 72 operating units tracked in total, up from 38. Spain's feed is queried too, but no Spanish unit has yet appeared in it to confirm a code for
/build-times/: are reactors taking longer to build, by the decade they connected
/vendor-trends/: has reactor-building concentrated in fewer vendors, by the decade construction started
/technology-mix/: which reactor technology dominated each era
/capacity-distribution/: the spread of reactor sizes, and how the typical size has changed by decade

23 Sep 2026

/plants/: the largest nuclear plants, ranked by combined operating capacity at one site
/elevation/: how close to sea level, and how close to the coast, the operating fleet sits
A CSV export of every correction applied on top of the source data

22 Sep 2026

/nearby/: find the plant sites closest to you, using your browser's own location; nothing is sent anywhere
Installable as an app, with a proper icon, and searchable straight from the browser address bar
/uprates/: which reactors run above or below the net capacity their design was originally rated at
/status/data/: whether each of the site's own live feeds is currently up to date
/data/api/: a reference for every live JSON and Atom endpoint the status Worker serves
Atom feeds for the changelog and for World Nuclear News headlines
CSV exports for the ownership and fuel supply exposure pages
Fuel supply exposure page and a table on every country page, from the sourced supplier table: which fabricators are documented as able to make each country's fuel
How long builds take, on the construction page and on every reactor design's own page
Biggest movers: which countries gained or lost the most capacity over the last 10 years, on /history/
Who owns the reactor fleet, worldwide and by country, from ownership stakes on record
Long-term earthquake and outage-check history, kept by the status Worker, shown on plant and reactor pages
Social preview cards for every plant and country page
/this-week/: outage changes, earthquakes and headlines from the last seven days
Print-friendly country briefs

20 Sep 2026

/compare/: put two to four plants or countries side by side
/age/: how old the fleet is, and which units have a planned retirement year
An alerts feed (Atom) for reactor outages and large earthquakes near plants
Embeddable cards for any plant or country, and two more CSV data exports
Two posts written from the site's own data: where reactors sit relative to the coast, and how old the fleet is

19 Sep 2026

Full redesign to the dark house style shared with the rest of the energy series
Elevation and distance to water on every plant page, from a terrain model
/history/: the world fleet, year by year, with an animated map and a slider
An operating-capacity-over-time chart on every country page
Nuclear outages outside the US (Ontario, Great Britain, Belgium, Finland, Sweden), checked hourly
The USGS earthquake feed, and recent earthquakes shown on every plant page
Zoomed maps on plant and country pages

8 Sep 2026

7 Sep 2026

Site launched: the reactor fleet, the fuel chain from mine to repository, companies, and daily US reactor status from the NRC