Nuclear output in France
April 2024 | April 2025 | Change | |
---|---|---|---|
Output of the month | 26.7TWh | 27.1TWh | 1.6% |
Cumulative output | 123.2TWh | 130.1TWh | 5.6% |
Nuclear output in April 2025 amounted to 27.1TWh, up 0.4TWh compared to the same period in 2024.
Since the beginning of the year, cumulative annual output was 130.1TWh, up by 6.9TWh compared to 2024. This is explained by the good availability of the reactors in operation, shorter than expected outages.

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Cumulative nuclear output in France in TWh, 2024 and 2025
January
- 2025: 38.8
- 2024: 35.8
February
- 2025: 70.8
- 2024: 66.7
March
- 2025: 102.7
- 2024: 96.6
April
- 2025: 130.1
- 2024: 123.2
May
- 2025: no data
- 2024: 151.0
June
- 2025: no data
- 2024: 177.4
July
- 2025: no data
- 2024: 206.0
August
- 2025: no data
- 2024: 234.6
September
- 2025: no data
- 2024: 262.1
October
- 2025: no data
- 2024: 292.0
November
- 2025: no data
- 2024: 325.1
December
- 2025: no data
- 2024: 361.7
Nuclear output in the United Kingdom
April 2024 | April 2025 | Change | |
---|---|---|---|
Output of the month | 3.6TWh | 2.8TWh | -21.9% |
Cumulative output | 11.1TWh | 11.6TWh | 3.6% |
Nuclear output in April 2025 was 2.8TWh, down by 0.8TWh vs April 2024.
Cumulative output was 11.6TWh, up by +0.4TWh after steam valve incidents impacting the output at Hartlepool and Heysham 1 in Q1 2024 and an important maintenance programme in 2025.

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Cumulative nuclear output in the UK in TWh, 2024 and 2025
January
- 2025: 3.1
- 2024: 2.4
February
- 2025: 6.0
- 2024: 4.9
March
- 2025: 8.8
- 2024: 7.6
April
- 2025: 11.6
- 2024: 11.1
May
- 2025: no data
- 2024: 14.7
June
- 2025: no data
- 2024: 18.1
July
- 2025: no data
- 2024: 21.5
August
- 2025: no data
- 2024: 25.2
September
- 2025: no data
- 2024: 28.5
October
- 2025: no data
- 2024: 31.4
November
- 2025: no data
- 2024: 34.3
December
- 2025: no data
- 2024: 37.3