Half-hour record · Great Britain
Zero-carbon electricity record
The record
95.8%
on Thursday 30 April 2026
Beat 95.4% from 29 April 2026 by 0.4 percentage points.
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95.8%30 Apr 202620182020202220242026
RecordBest of each monthRecord broken
- Times broken
- 16
- since March 2017
- Standing for
- 6 months
- since 30 Apr 2026
- Previous record
- 95.4%
- 29 Apr 2026
- Best in 2026
- 95.8%
- 30 Apr 2026 · the record
The record for zero-carbon share is 95.8%, in the half hour from 14:00–14:30 BST on Thursday 30 April 2026. It beat the record of 95.4%, set on 29 April 2026, by 0.4 percentage points.
Since March 2017, the record has been broken 16 times.
The best value in 2017 was 88.0%. The record is 7.8 percentage points higher.
7 of the ten best days were in the past twelve months.
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 | Rise | Held for |
|---|---|---|---|---|
| 30 April 2026 | 14:00–14:30 BST | 95.8% | +0.4 points | Stands · 6 months |
| 29 April 2026 | 13:00–13:30 BST | 95.4% | +0.4 points | 1 day |
| 15 April 2024 | 14:00–14:30 BST | 95.0% | +1.4 points | 2 years |
| 23 March 2024 | 11:00–11:30 GMT | 93.6% | +1.0 point | 23 days |
| 28 December 2023 | 11:30–12:00 GMT | 92.6% | +0.6 points | 3 months |
| 7 January 2023 | 19:30–20:00 GMT | 92.0% | +0.7 points | 12 months |
| 29 December 2022 | 13:00–13:30 GMT | 91.4% | +0.0 points | 9 days |
| 26 December 2022 | 16:30–17:00 GMT | 91.3% | +0.1 points | 3 days |
| 19 March 2022 | 13:00–13:30 GMT | 91.2% | +1.1 points | 9 months |
| 27 February 2022 | 12:00–12:30 GMT | 90.1% | +0.4 points | 20 days |
| 5 April 2021 | 15:00–15:30 BST | 89.7% | +0.9 points | 11 months |
| 24 May 2020 | 13:00–13:30 BST | 88.8% | +0.8 points | 10 months |
| 2 October 2017 | 00:30–01:00 BST | 88.0% | +1.2 points | 2 years and 8 months |
| 1 October 2017 | 23:30–00:00 BST | 86.8% | +3.0 points | 1 day |
| 11 June 2017 | 15:30–16:00 BST | 83.8% | +2.5 points | 4 months |
| 7 June 2017 | 02:30–03:00 BST | 81.4% | +0.7 points | 4 days |
| 25 December 2016 | 04:30–05:00 GMT | 80.7% | +0.9 points | 5 months |
| 7 August 2016 | 14:30–15:00 BST | 79.7% | +3.9 points | 5 months |
| 2 July 2016 | 14:30–15:00 BST | 75.9% | +1.4 points | 36 days |
| 26 March 2016 | 06:00–06:30 GMT | 74.5% | +9.0 points | 3 months |
| 25 March 2016 | 23:30–00:00 GMT | 65.5% | +17.6 points | 1 day |
| 24 March 2016 | 05:00–05:30 GMT | 47.9% | +0.6 points | 1 day |
| 13 March 2016 | 13:30–14:00 GMT | 47.3% | +5.1 points | 11 days |
| 12 March 2016 | 12:30–13:00 GMT | 42.2% | +3.6 points | 1 day |
| 11 March 2016 | 23:30–00:00 GMT | 38.6% | +9.6 points | 1 day |
| 10 March 2016 | 04:00–04:30 GMT | 28.9% | — | 1 day |
The 10 grey rows are from the first year of the data, when each new day could set a record.