UK electricity in September 2023
Day by day: how Great Britain made its electricity in September 2023.
In September 2023, gas made 33% of Britain's electricity, then wind (25%). Renewables made 36%, against 36% a year earlier; average carbon intensity 155 g/kWh.
Electricity generated each day, September 2023
GWh a day
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the numbers
- Nuclear
- Gas
- Hydro
- Imports
- Biomass
- Pumped storage
- Wind
- Solar
- Coal
- 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 2023 in total
| Source | Electricity | Share |
|---|---|---|
| Gas | 7,019 GWh | 32.9% |
| Wind | 5,266 GWh | 24.7% |
| Nuclear | 3,708 GWh | 17.4% |
| Imports | 2,272 GWh | 10.7% |
| Solar | 1,290 GWh | 6.0% |
| Biomass | 906 GWh | 4.2% |
| Coal | 307 GWh | 1.4% |
| Hydro | 239 GWh | 1.1% |
| Other | 235 GWh | 1.1% |
| Pumped storage | 85.6 GWh | 0.4% |
| Renewable (wind, solar, hydro, biomass) | 36.1% | |
| Low carbon (renewable plus nuclear) | 53.5% |
Standout days
- Windiest day401.6 GWh of windSun, 24 September 2023
- Highest wind share57.1%Sun, 24 September 2023
- Sunniest day74.4 GWh of solarMon, 4 September 2023
- Cleanest day57 g/kWh averageTue, 19 September 2023
- Dirtiest day250 g/kWh averageFri, 8 September 2023
Every day
| Day | Total | Wind | Gas | Nuclear | Solar | Carbon |
|---|---|---|---|---|---|---|
| Fri 1 Sept | 689 GWh | 8% | 51% | 18% | 6% | 218 g |
| Sat 2 Sept | 629 GWh | 9% | 43% | 20% | 9% | 187 g |
| Sun 3 Sept | 618 GWh | 19% | 24% | 20% | 11% | 120 g |
| Mon 4 Sept | 720 GWh | 14% | 35% | 17% | 10% | 165 g |
| Tue 5 Sept | 758 GWh | 16% | 43% | 17% | 10% | 192 g |
| Wed 6 Sept | 750 GWh | 11% | 49% | 17% | 8% | 216 g |
| Thu 7 Sept | 738 GWh | 6% | 50% | 17% | 8% | 225 g |
| Fri 8 Sept | 729 GWh | 2% | 54% | 17% | 7% | 250 g |
| Sat 9 Sept | 671 GWh | 8% | 44% | 19% | 9% | 201 g |
| Sun 10 Sept | 664 GWh | 8% | 46% | 19% | 5% | 209 g |
| Mon 11 Sept | 748 GWh | 16% | 47% | 17% | 5% | 212 g |
| Tue 12 Sept | 756 GWh | 13% | 52% | 16% | 3% | 238 g |
| Wed 13 Sept | 729 GWh | 21% | 39% | 17% | 7% | 181 g |
| Thu 14 Sept | 737 GWh | 22% | 38% | 17% | 6% | 182 g |
| Fri 15 Sept | 711 GWh | 10% | 42% | 18% | 7% | 198 g |
| Sat 16 Sept | 648 GWh | 21% | 29% | 19% | 5% | 138 g |
| Sun 17 Sept | 651 GWh | 28% | 24% | 19% | 3% | 123 g |
| Mon 18 Sept | 717 GWh | 45% | 13% | 17% | 5% | 66 g |
| Tue 19 Sept | 738 GWh | 53% | 12% | 17% | 2% | 57 g |
| Wed 20 Sept | 757 GWh | 51% | 13% | 16% | 2% | 67 g |
| Thu 21 Sept | 730 GWh | 24% | 31% | 17% | 6% | 141 g |
| Fri 22 Sept | 692 GWh | 22% | 26% | 18% | 7% | 130 g |
| Sat 23 Sept | 645 GWh | 22% | 25% | 19% | 8% | 132 g |
| Sun 24 Sept | 704 GWh | 57% | 12% | 18% | 3% | 58 g |
| Mon 25 Sept | 754 GWh | 41% | 20% | 16% | 7% | 109 g |
| Tue 26 Sept | 772 GWh | 37% | 25% | 16% | 5% | 142 g |
| Wed 27 Sept | 751 GWh | 37% | 26% | 16% | 2% | 142 g |
| Thu 28 Sept | 759 GWh | 48% | 21% | 16% | 3% | 101 g |
| Fri 29 Sept | 728 GWh | 41% | 20% | 16% | 8% | 102 g |
| Sat 30 Sept | 637 GWh | 21% | 32% | 17% | 4% | 161 g |