The week on the grid
Each finished week in one place: how clean electricity was, what it traded for and how much renewable output was turned down.
From 26 October to 1 November 2026, renewables averaged 43% of electricity, carbon intensity averaged 149 gCO₂/kWh and wholesale prices never went negative. Generators were paid £20.0 million to switch off 460,569 MWh of renewable output. Figures as compiled at 08:30 GMT on 6 November 2026.
26 October to 1 November 2026
Renewable share
43%
20% lower than the week before
49% low carbon, including nuclear
Average carbon intensity
149gCO₂/kWh
49% higher than the week before
Lowest 51 at 10:00 on 27 Oct
Average wholesale price
19.09p/kWh
42% higher than the week before
Peaked at 27.80p at 16:00 on 29 Oct
Negative-price half hours
0
Lowest price 2.33p at 03:30 on 27 Oct
Renewables turned down
460,569MWh
4% lower than the week before
£20.0 million paid to switch off
Average generation mix
Each source's share, averaged across the week's half hours. Includes embedded solar and wind.
| Source | Average share |
|---|---|
| Gas | 32.1% |
| Wind | 28.4% |
| Nuclear | 15.3% |
| Biomass | 9.1% |
| Imports | 6.8% |
| Solar | 3.2% |
| Hydro | 2.5% |
| Other | 2.5% |
Other weeks
| Week | Renewable | Avg gCO₂/kWh | Negative-price half hours |
|---|---|---|---|
| 26 October to 1 November 2026 | 43% | 149 | 0 |
| 19 October to 25 October 2026 | 54% | 100 | 7 |
| 12 October to 18 October 2026 | 55% | 98 | 0 |
| 5 October to 11 October 2026 | 53% | 109 | 0 |
| 28 September to 4 October 2026 | 49% | 132 | 0 |
| 21 September to 27 September 2026 | 46% | 136 | 3 |
| 14 September to 20 September 2026 | 63% | 87 | 33 |
| 7 September to 13 September 2026 | 54% | 109 | 8 |
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