Question to the Department for Business, Energy and Industrial Strategy:

To ask Her Majesty's Government whether nuclear plants are currently able to provide one fifth of UK electricity supplies.

The total installed nuclear capacity in the UK is 8.9 GW and if all stations were fully operational they could provide more than a fifth of UK electricity supplies. However, a proportion is likely to be unavailable at any given point due to routine inspections, maintenance and technical issues.

In 2020 nuclear power stations generated around 16% of the electricity generated in the UK. This figure is provisional and final figures will be published in July in the Digest of UK Energy Statistics (DUKES: the annual energy statistics publication produced by the Department for Business, Energy and Industrial Strategy).