UK electricity in August 2025
Day by day: how Great Britain made its electricity in August 2025.
In August 2025, wind made 26% of Britain's electricity, then gas (23%). Renewables made 45%, against 48% a year earlier; average carbon intensity 117 g/kWh.
Electricity generated each day, August 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
August 2025 in total
| Source | Electricity | Share |
|---|---|---|
| Wind | 5,626 GWh | 26.0% |
| Gas | 5,030 GWh | 23.2% |
| Imports | 4,119 GWh | 19.0% |
| Nuclear | 2,388 GWh | 11.0% |
| Solar | 2,201 GWh | 10.2% |
| Biomass | 1,661 GWh | 7.7% |
| Other | 374 GWh | 1.7% |
| Hydro | 208 GWh | 1.0% |
| Pumped storage | 46.7 GWh | 0.2% |
| Renewable (wind, solar, hydro, biomass) | 44.8% | |
| Low carbon (renewable plus nuclear) | 55.8% |
Standout days
- Windiest day389.8 GWh of windTue, 5 August 2025
- Highest wind share54.4%Sun, 31 August 2025
- Sunniest day101.4 GWh of solarSun, 10 August 2025
- Cleanest day59 g/kWh averageSun, 31 August 2025
- Dirtiest day188 g/kWh averageWed, 13 August 2025
Every day
| Day | Total | Wind | Gas | Nuclear | Solar | Carbon |
|---|---|---|---|---|---|---|
| Fri 1 Aug | 705 GWh | 34% | 13% | 13% | 8% | 73 g |
| Sat 2 Aug | 642 GWh | 24% | 12% | 14% | 13% | 74 g |
| Sun 3 Aug | 637 GWh | 31% | 14% | 14% | 9% | 79 g |
| Mon 4 Aug | 750 GWh | 47% | 14% | 12% | 7% | 73 g |
| Tue 5 Aug | 775 GWh | 50% | 14% | 11% | 11% | 66 g |
| Wed 6 Aug | 717 GWh | 28% | 15% | 12% | 13% | 85 g |
| Thu 7 Aug | 744 GWh | 41% | 16% | 11% | 8% | 82 g |
| Fri 8 Aug | 718 GWh | 35% | 17% | 10% | 13% | 85 g |
| Sat 9 Aug | 692 GWh | 41% | 15% | 10% | 13% | 75 g |
| Sun 10 Aug | 637 GWh | 19% | 18% | 11% | 16% | 96 g |
| Mon 11 Aug | 736 GWh | 16% | 31% | 10% | 11% | 147 g |
| Tue 12 Aug | 742 GWh | 10% | 36% | 10% | 12% | 172 g |
| Wed 13 Aug | 742 GWh | 12% | 40% | 10% | 10% | 188 g |
| Thu 14 Aug | 754 GWh | 16% | 35% | 10% | 9% | 164 g |
| Fri 15 Aug | 729 GWh | 15% | 28% | 10% | 13% | 140 g |
| Sat 16 Aug | 626 GWh | 15% | 24% | 11% | 9% | 125 g |
| Sun 17 Aug | 617 GWh | 13% | 21% | 12% | 16% | 113 g |
| Mon 18 Aug | 706 GWh | 12% | 39% | 10% | 5% | 181 g |
| Tue 19 Aug | 740 GWh | 23% | 30% | 10% | 6% | 144 g |
| Wed 20 Aug | 718 GWh | 28% | 28% | 10% | 7% | 133 g |
| Thu 21 Aug | 714 GWh | 18% | 30% | 10% | 8% | 148 g |
| Fri 22 Aug | 693 GWh | 8% | 33% | 10% | 10% | 168 g |
| Sat 23 Aug | 630 GWh | 5% | 32% | 12% | 8% | 165 g |
| Sun 24 Aug | 605 GWh | 6% | 28% | 13% | 12% | 151 g |
| Mon 25 Aug | 659 GWh | 29% | 20% | 10% | 15% | 112 g |
| Tue 26 Aug | 712 GWh | 34% | 21% | 10% | 10% | 108 g |
| Wed 27 Aug | 718 GWh | 32% | 23% | 10% | 8% | 120 g |
| Thu 28 Aug | 728 GWh | 30% | 23% | 11% | 9% | 115 g |
| Fri 29 Aug | 691 GWh | 27% | 23% | 12% | 9% | 114 g |
| Sat 30 Aug | 665 GWh | 42% | 13% | 13% | 7% | 79 g |
| Sun 31 Aug | 715 GWh | 54% | 12% | 13% | 11% | 59 g |