Wylfa nuclear power plant — United Kingdom

Wylfa nuclear power plant is a retired nuclear power station in , United Kingdom. Its current lifecycle status is “Retired” — so it is not yet, or no longer, generating at full output. It ranks #48 of 2,860 United Kingdom power plants by installed capacity. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, nuclear supplies about 12.4% of United Kingdom's electricity; the national grid averages 217 gCO₂/kWh (64.4% low-carbon) (2025).

Plant data: WRI Global Power Plant Database (CC BY 4.0), id GEM_nuc_wylfa_unite.

Data provenance

Source of the capacity and fuel values:

capacity: GEM Global Nuclear Power Tracker September 2025 unit-status sum (retired); fuel: GEM GNPT

In context: how this plant compares

At 1,070 MW, Wylfa nuclear power plant is well above the median nuclear plant in United Kingdom (965 MW). Technically it is described as gas-cooled reactor. Its lifecycle status is Retired; it no longer generates electricity. Nuclear plants split uranium to raise steam with no direct CO₂; they run as steady baseload with very high capacity factors and the longest operating lifetimes of any thermal plant.

Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.

How it compares & nearby plants

The #12 largest nuclear power plant of 25 in United Kingdom by capacity.

United Kingdom has 25 nuclear power plants in this dataset, together about 27,683 MW of capacity.

Nearby power plants

• Wylfa SMR nuclear power plant · Nuclear · 924 MW · Anglesey
• Wylfa Newydd nuclear power plant · Nuclear · 2,760 MW · Anglesey
• Ystgellog Farm Wind Farm · Wind · 4.6 MW · Wales
• Llanbabo Wind Farm · Wind · 20.4 MW · Wales
• Llyn Alaw · Wind · 20.4 MW · Wales
• Trysglwyn · Wind · 5.6 MW · Wales

Location

Coordinates 53.4161, -4.4808 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions