UK electricity in September 2026
Day by day: how Great Britain made its electricity in September 2026.
In September 2026, wind made 36% of Britain's electricity, then gas (20%). Renewables made 54%, against 51% a year earlier; average carbon intensity 127 g/kWh.
Electricity generated each day, September 2026
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
September 2026 in total
| Source | Electricity | Share |
|---|---|---|
| Wind | 8,206 GWh | 36.3% |
| Gas | 4,619 GWh | 20.4% |
| Nuclear | 2,752 GWh | 12.2% |
| Imports | 2,433 GWh | 10.8% |
| Biomass | 1,854 GWh | 8.2% |
| Solar | 1,851 GWh | 8.2% |
| Other | 493 GWh | 2.2% |
| Hydro | 291 GWh | 1.3% |
| Pumped storage | 122 GWh | 0.5% |
| Renewable (wind, solar, hydro, biomass) | 53.9% | |
| Low carbon (renewable plus nuclear) | 66.1% |
Standout days
- Windiest day469.4 GWh of windSat, 19 September 2026
- Highest wind share61.1%Sat, 19 September 2026
- Sunniest day95.3 GWh of solarSat, 5 September 2026
- Cleanest day62 g/kWh averageSat, 19 September 2026
- Dirtiest day262 g/kWh averageSun, 13 September 2026
Every day
| Day | Total | Wind | Gas | Nuclear | Solar | Carbon |
|---|---|---|---|---|---|---|
| Tue 1 Sept | 756 GWh | 35% | 16% | 16% | 11% | 98 g |
| Wed 2 Sept | 761 GWh | 28% | 29% | 16% | 4% | 170 g |
| Thu 3 Sept | 802 GWh | 45% | 10% | 15% | 8% | 85 g |
| Fri 4 Sept | 802 GWh | 51% | 12% | 14% | 6% | 73 g |
| Sat 5 Sept | 732 GWh | 37% | 12% | 14% | 13% | 81 g |
| Sun 6 Sept | 695 GWh | 40% | 12% | 14% | 11% | 87 g |
| Mon 7 Sept | 759 GWh | 43% | 15% | 11% | 7% | 117 g |
| Tue 8 Sept | 807 GWh | 49% | 17% | 10% | 6% | 102 g |
| Wed 9 Sept | 768 GWh | 32% | 20% | 11% | 9% | 178 g |
| Thu 10 Sept | 760 GWh | 36% | 22% | 10% | 8% | 170 g |
| Fri 11 Sept | 741 GWh | 25% | 26% | 12% | 8% | 178 g |
| Sat 12 Sept | 725 GWh | 47% | 14% | 12% | 7% | 88 g |
| Sun 13 Sept | 674 GWh | 9% | 32% | 13% | 7% | 262 g |
| Mon 14 Sept | 755 GWh | 28% | 33% | 11% | 7% | 185 g |
| Tue 15 Sept | 778 GWh | 45% | 14% | 10% | 9% | 98 g |
| Wed 16 Sept | 741 GWh | 31% | 21% | 11% | 9% | 146 g |
| Thu 17 Sept | 801 GWh | 53% | 12% | 10% | 8% | 67 g |
| Fri 18 Sept | 789 GWh | 56% | 11% | 10% | 6% | 77 g |
| Sat 19 Sept | 768 GWh | 61% | 12% | 10% | 6% | 62 g |
| Sun 20 Sept | 736 GWh | 47% | 14% | 11% | 12% | 75 g |
| Mon 21 Sept | 733 GWh | 15% | 29% | 11% | 10% | 164 g |
| Tue 22 Sept | 739 GWh | 12% | 40% | 12% | 9% | 192 g |
| Wed 23 Sept | 756 GWh | 30% | 25% | 12% | 9% | 131 g |
| Thu 24 Sept | 748 GWh | 25% | 24% | 13% | 10% | 136 g |
| Fri 25 Sept | 753 GWh | 25% | 29% | 13% | 8% | 143 g |
| Sat 26 Sept | 689 GWh | 28% | 21% | 14% | 12% | 128 g |
| Sun 27 Sept | 719 GWh | 45% | 14% | 13% | 5% | 95 g |
| Mon 28 Sept | 738 GWh | 14% | 38% | 13% | 9% | 194 g |
| Tue 29 Sept | 772 GWh | 42% | 20% | 12% | 5% | 116 g |
| Wed 30 Sept | 825 GWh | 45% | 21% | 12% | 8% | 99 g |