UK electricity in October 2025
Day by day: how Great Britain made its electricity in October 2025.
In October 2025, wind made 34% of Britain's electricity, then gas (29%). Renewables made 45%, against 43% a year earlier; average carbon intensity 141 g/kWh.
Electricity generated each day, October 2025
GWh a day
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the numbers
- Nuclear
- Gas
- Hydro
- Imports
- Biomass
- Pumped storage
- Wind
- Solar
- Other
Share of electricity, by source
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the numbers
Carbon intensity
g CO₂ per kWh, daily average
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the numbers
October 2025 in total
| Source | Electricity | Share |
|---|---|---|
| Wind | 8,341 GWh | 34.0% |
| Gas | 7,071 GWh | 28.8% |
| Imports | 3,436 GWh | 14.0% |
| Nuclear | 2,539 GWh | 10.3% |
| Biomass | 1,441 GWh | 5.9% |
| Solar | 853 GWh | 3.5% |
| Other | 426 GWh | 1.7% |
| Hydro | 316 GWh | 1.3% |
| Pumped storage | 136 GWh | 0.6% |
| Renewable (wind, solar, hydro, biomass) | 44.6% | |
| Low carbon (renewable plus nuclear) | 54.9% |
Standout days
- Windiest day495.1 GWh of windFri, 31 October 2025
- Highest wind share63.9%Sat, 4 October 2025
- Sunniest day62.9 GWh of solarMon, 6 October 2025
- Cleanest day57 g/kWh averageSun, 5 October 2025
- Dirtiest day267 g/kWh averageMon, 13 October 2025
Every day
| Day | Total | Wind | Gas | Nuclear | Solar | Carbon |
|---|---|---|---|---|---|---|
| Wed 1 Oct | 799 GWh | 29% | 33% | 8% | 4% | 153 g |
| Thu 2 Oct | 741 GWh | 43% | 16% | 8% | 4% | 91 g |
| Fri 3 Oct | 772 GWh | 56% | 16% | 8% | 1% | 77 g |
| Sat 4 Oct | 743 GWh | 64% | 11% | 8% | 6% | 59 g |
| Sun 5 Oct | 756 GWh | 60% | 10% | 8% | 7% | 57 g |
| Mon 6 Oct | 780 GWh | 38% | 25% | 8% | 8% | 115 g |
| Tue 7 Oct | 809 GWh | 30% | 40% | 8% | 3% | 172 g |
| Wed 8 Oct | 812 GWh | 22% | 46% | 8% | 4% | 199 g |
| Thu 9 Oct | 779 GWh | 29% | 32% | 9% | 4% | 154 g |
| Fri 10 Oct | 776 GWh | 20% | 39% | 9% | 3% | 185 g |
| Sat 11 Oct | 708 GWh | 12% | 43% | 11% | 5% | 209 g |
| Sun 12 Oct | 712 GWh | 4% | 51% | 12% | 4% | 233 g |
| Mon 13 Oct | 792 GWh | 6% | 61% | 11% | 2% | 267 g |
| Tue 14 Oct | 827 GWh | 8% | 60% | 10% | 2% | 263 g |
| Wed 15 Oct | 825 GWh | 10% | 56% | 11% | 2% | 247 g |
| Thu 16 Oct | 801 GWh | 9% | 51% | 11% | 3% | 232 g |
| Fri 17 Oct | 765 GWh | 5% | 55% | 12% | 2% | 246 g |
| Sat 18 Oct | 714 GWh | 26% | 30% | 13% | 2% | 152 g |
| Sun 19 Oct | 776 GWh | 52% | 11% | 12% | 2% | 65 g |
| Mon 20 Oct | 794 GWh | 26% | 29% | 12% | 3% | 145 g |
| Tue 21 Oct | 774 GWh | 35% | 17% | 12% | 3% | 101 g |
| Wed 22 Oct | 822 GWh | 22% | 38% | 11% | 4% | 167 g |
| Thu 23 Oct | 808 GWh | 43% | 10% | 11% | 3% | 82 g |
| Fri 24 Oct | 833 GWh | 51% | 9% | 11% | 5% | 83 g |
| Sat 25 Oct | 799 GWh | 61% | 11% | 11% | 5% | 63 g |
| Sun 26 Oct | 815 GWh | 59% | 7% | 11% | 3% | 62 g |
| Mon 27 Oct | 837 GWh | 45% | 15% | 11% | 5% | 97 g |
| Tue 28 Oct | 838 GWh | 55% | 10% | 11% | 4% | 73 g |
| Wed 29 Oct | 829 GWh | 36% | 26% | 11% | 2% | 128 g |
| Thu 30 Oct | 850 GWh | 35% | 24% | 11% | 3% | 129 g |
| Fri 31 Oct | 874 GWh | 57% | 13% | 11% | 2% | 68 g |