UK electricity in July 2025
Day by day: how Great Britain made its electricity in July 2025.
In July 2025, gas made 25% of Britain's electricity, then imports (19%). Renewables made 39%, against 38% a year earlier; average carbon intensity 123 g/kWh.
Electricity generated each day, July 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
July 2025 in total
| Source | Electricity | Share |
|---|---|---|
| Gas | 5,474 GWh | 24.9% |
| Imports | 4,290 GWh | 19.5% |
| Wind | 4,203 GWh | 19.1% |
| Nuclear | 3,242 GWh | 14.7% |
| Solar | 2,366 GWh | 10.8% |
| Biomass | 1,809 GWh | 8.2% |
| Other | 376 GWh | 1.7% |
| Hydro | 195 GWh | 0.9% |
| Pumped storage | 51.1 GWh | 0.2% |
| Renewable (wind, solar, hydro, biomass) | 39.0% | |
| Low carbon (renewable plus nuclear) | 53.7% |
Standout days
- Windiest day356.7 GWh of windSat, 5 July 2025
- Highest wind share50.4%Sat, 5 July 2025
- Sunniest day117.9 GWh of solarTue, 8 July 2025
- Cleanest day60 g/kWh averageSat, 5 July 2025
- Dirtiest day178 g/kWh averageTue, 1 July 2025
Every day
| Day | Total | Wind | Gas | Nuclear | Solar | Carbon |
|---|---|---|---|---|---|---|
| Tue 1 Jul | 774 GWh | 14% | 38% | 14% | 10% | 178 g |
| Wed 2 Jul | 741 GWh | 16% | 34% | 15% | 10% | 164 g |
| Thu 3 Jul | 706 GWh | 23% | 17% | 16% | 14% | 96 g |
| Fri 4 Jul | 749 GWh | 39% | 13% | 14% | 13% | 76 g |
| Sat 5 Jul | 708 GWh | 50% | 12% | 14% | 7% | 60 g |
| Sun 6 Jul | 643 GWh | 22% | 22% | 16% | 9% | 106 g |
| Mon 7 Jul | 758 GWh | 38% | 13% | 13% | 12% | 69 g |
| Tue 8 Jul | 737 GWh | 23% | 16% | 14% | 16% | 86 g |
| Wed 9 Jul | 744 GWh | 12% | 29% | 13% | 13% | 142 g |
| Thu 10 Jul | 774 GWh | 9% | 33% | 13% | 14% | 156 g |
| Fri 11 Jul | 750 GWh | 6% | 31% | 13% | 15% | 153 g |
| Sat 12 Jul | 682 GWh | 11% | 21% | 15% | 17% | 116 g |
| Sun 13 Jul | 663 GWh | 15% | 20% | 15% | 14% | 105 g |
| Mon 14 Jul | 755 GWh | 33% | 16% | 13% | 11% | 86 g |
| Tue 15 Jul | 721 GWh | 36% | 12% | 14% | 7% | 72 g |
| Wed 16 Jul | 720 GWh | 13% | 27% | 14% | 11% | 131 g |
| Thu 17 Jul | 722 GWh | 12% | 34% | 14% | 8% | 165 g |
| Fri 18 Jul | 753 GWh | 16% | 30% | 14% | 11% | 146 g |
| Sat 19 Jul | 665 GWh | 18% | 30% | 16% | 6% | 139 g |
| Sun 20 Jul | 628 GWh | 20% | 23% | 18% | 8% | 112 g |
| Mon 21 Jul | 700 GWh | 11% | 31% | 16% | 11% | 146 g |
| Tue 22 Jul | 724 GWh | 16% | 31% | 16% | 8% | 143 g |
| Wed 23 Jul | 699 GWh | 13% | 29% | 15% | 9% | 141 g |
| Thu 24 Jul | 734 GWh | 20% | 28% | 15% | 7% | 133 g |
| Fri 25 Jul | 717 GWh | 14% | 28% | 16% | 13% | 136 g |
| Sat 26 Jul | 639 GWh | 16% | 23% | 17% | 9% | 114 g |
| Sun 27 Jul | 625 GWh | 20% | 23% | 17% | 8% | 110 g |
| Mon 28 Jul | 691 GWh | 16% | 23% | 14% | 11% | 115 g |
| Tue 29 Jul | 679 GWh | 5% | 35% | 15% | 8% | 165 g |
| Wed 30 Jul | 697 GWh | 12% | 29% | 14% | 10% | 143 g |
| Thu 31 Jul | 710 GWh | 22% | 22% | 14% | 9% | 113 g |