Half-hour record · Great Britain
Lowest carbon intensity on record
The record
19 g/kWh
on Monday 15 April 2024
Beat 21 g/kWh from 5 April 2024 by 2 g/kWh.
- Times broken
- 8
- since September 2018
- Standing for
- 2 years and 6 months
- since 15 Apr 2024
- Previous record
- 21 g/kWh
- 5 Apr 2024
- Best in 2026
- 20 g/kWh
- 7 Apr 2026
The record for lowest carbon intensity is 19 g/kWh, in the half hour from 13:30–14:00 BST on Monday 15 April 2024. It beat the record of 21 g/kWh, set on 5 April 2024, by 2 g/kWh.
Since September 2018, the record has been broken 8 times.
The best value in 2018 was 78 g/kWh. The record is 76% lower.
1 of the ten best days was in the past twelve months.
So far in 2026, the best value is 20 g/kWh, on 7 April 2026.
Most of the best days are from April to August, when the days are long.
History
Every time the record was broken
Newest first. Choose a day to see its charts at the moment of the record. Rows in grey are from the first year of the data.
| Day | Half hour | Record | Fall | Held for |
|---|---|---|---|---|
| 15 April 2024 | 13:30–14:00 BST | 19 g/kWh | −2 g/kWh | Stands · 2 years and 6 months |
| 5 April 2024 | 13:00–13:30 BST | 21 g/kWh | −5 g/kWh | 10 days |
| 28 December 2023 | 13:30–14:00 GMT | 26 g/kWh | −3 g/kWh | 3 months |
| 18 September 2023 | 14:30–15:00 BST | 29 g/kWh | −3 g/kWh | 3 months |
| 10 April 2023 | 14:30–15:00 BST | 32 g/kWh | −6 g/kWh | 5 months |
| 5 April 2021 | 13:00–13:30 BST | 38 g/kWh | −8 g/kWh | 2 years |
| 24 May 2020 | 13:30–14:00 BST | 46 g/kWh | −2 g/kWh | 10 months |
| 22 August 2019 | 16:00–16:30 BST | 48 g/kWh | −25 g/kWh | 9 months |
| 2 October 2017 | 00:30–01:00 BST | 73 g/kWh | −19 g/kWh | 23 months |
| 1 October 2017 | 23:30–00:00 BST | 92 g/kWh | −92 g/kWh | 1 day |
| 30 September 2017 | 00:30–01:00 BST | 184 g/kWh | −2 g/kWh | 1 day |
| 27 September 2017 | 23:30–00:00 BST | 186 g/kWh | −50 g/kWh | 3 days |
| 26 September 2017 | 23:30–00:00 BST | 236 g/kWh | — | 1 day |
The 5 grey rows are from the first year of the data, when each new day could set a record.