Nuclear output
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Low-carbon baseload
Nuclear
Five operating stations provide steady, low-carbon power while the next generation of reactors is built.
Nuclear · installed / connected capacity5.88 GW
Operating major power producer stations at end-May 2026.
Estimated from half-hourly readings
Average transmission output
Highest half-hourly reading
Live power flow
Nuclear generation output
Half-hourly transmission-system readings from Elexon.
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30-day average
Typical hourly output
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Combining the latest 30 days of half-hourly readings.
EDF reactor status
Which reactors are running?
Live operating state, output and the published reason for reduced load or shutdown.
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Location map
Selected operating sites
Dots show the largest or most representative projects in the published dataset.
5selected locations shown
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Coastline: Natural Earth · public domainHistoric daily comparison
Last seven days
Electrical energy generated each day.
Daily energy calculated from Elexon FUELHH half-hourly readings; today is accumulated so far.
Individual locations
Largest and selected sites
Installed power capacity and location from the latest official list.
SiteTypeRegionPower
Heysham 2AGRNorth West1,240 MW
TornessAGRScotland1,200 MW
Sizewell BPWREast of England1,198 MW
HartlepoolAGRNorth East1,185 MW
Heysham 1AGRNorth West1,060 MW
Capacity & sitesDESNZ DUKES 5.11
Snapshot dateEnd-May 2026
Live & historyElexon FUELINST / FUELHH