Nuclear power in the United Kingdom generated 16.1% of the country's electricity in 2020. As of December 2025, the UK has nine operational nuclear reactors at four locations, producing 5.9 GWe. It als
Calder Hall power station was first connected to the national power grid on 27 August 1956.
Hinkley Point
The reactor dome of the Sizewell B power station
The Windscale Piles in Cumbria (currently being decommissioned). They are discharging steam, not smoke.
Advanced gas-cooled reactor
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The advanced gas-cooled reactor is a type of nuclear reactor designed and operated by the United Kingdom. These are the second generation of British gas-cooled reactors, using graphite as the neutron
Reactor building at Torness
Dungeness B AGR power station, with a different outward appearance to most AGRs, consequential to multiple build companies being used
The two power stations with four AGRs at Heysham