UK electricity in May 2023
Day by day: how Great Britain made its electricity in May 2023.
In May 2023, gas made 34% of Britain's electricity, then wind (19%). Renewables made 32%, against 35% a year earlier; average carbon intensity 147 g/kWh.
Electricity generated each day, May 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
May 2023 in total
| Source | Electricity | Share |
|---|---|---|
| Gas | 7,084 GWh | 33.6% |
| Wind | 4,093 GWh | 19.4% |
| Imports | 3,823 GWh | 18.1% |
| Nuclear | 3,143 GWh | 14.9% |
| Solar | 1,968 GWh | 9.3% |
| Biomass | 608 GWh | 2.9% |
| Other | 163 GWh | 0.8% |
| Hydro | 104 GWh | 0.5% |
| Pumped storage | 87.2 GWh | 0.4% |
| Coal | 0.1 GWh | 0.0% |
| Renewable (wind, solar, hydro, biomass) | 32.1% | |
| Low carbon (renewable plus nuclear) | 47.1% |
Standout days
- Windiest day349.6 GWh of windThu, 4 May 2023
- Highest wind share46.1%Thu, 4 May 2023
- Sunniest day90.5 GWh of solarSat, 27 May 2023
- Cleanest day76 g/kWh averageMon, 29 May 2023
- Dirtiest day228 g/kWh averageThu, 11 May 2023
Every day
| Day | Total | Wind | Gas | Nuclear | Solar | Carbon |
|---|---|---|---|---|---|---|
| Mon 1 May | 658 GWh | 19% | 30% | 13% | 8% | 141 g |
| Tue 2 May | 723 GWh | 8% | 49% | 12% | 7% | 215 g |
| Wed 3 May | 717 GWh | 22% | 36% | 12% | 11% | 164 g |
| Thu 4 May | 758 GWh | 46% | 21% | 12% | 8% | 97 g |
| Fri 5 May | 718 GWh | 26% | 36% | 12% | 7% | 155 g |
| Sat 6 May | 652 GWh | 15% | 44% | 13% | 5% | 194 g |
| Sun 7 May | 620 GWh | 16% | 30% | 14% | 9% | 141 g |
| Mon 8 May | 663 GWh | 30% | 29% | 13% | 4% | 130 g |
| Tue 9 May | 708 GWh | 11% | 45% | 12% | 7% | 192 g |
| Wed 10 May | 717 GWh | 13% | 45% | 12% | 8% | 194 g |
| Thu 11 May | 709 GWh | 5% | 53% | 12% | 8% | 228 g |
| Fri 12 May | 704 GWh | 29% | 35% | 12% | 6% | 158 g |
| Sat 13 May | 643 GWh | 20% | 31% | 13% | 9% | 139 g |
| Sun 14 May | 622 GWh | 14% | 35% | 14% | 10% | 155 g |
| Mon 15 May | 722 GWh | 32% | 29% | 12% | 10% | 126 g |
| Tue 16 May | 733 GWh | 23% | 31% | 12% | 10% | 140 g |
| Wed 17 May | 718 GWh | 10% | 45% | 13% | 9% | 193 g |
| Thu 18 May | 704 GWh | 13% | 40% | 14% | 9% | 174 g |
| Fri 19 May | 701 GWh | 11% | 43% | 14% | 8% | 186 g |
| Sat 20 May | 628 GWh | 19% | 21% | 18% | 14% | 103 g |
| Sun 21 May | 611 GWh | 19% | 22% | 19% | 13% | 101 g |
| Mon 22 May | 693 GWh | 32% | 29% | 18% | 10% | 118 g |
| Tue 23 May | 698 GWh | 22% | 32% | 18% | 10% | 131 g |
| Wed 24 May | 703 GWh | 18% | 37% | 18% | 13% | 152 g |
| Thu 25 May | 690 GWh | 12% | 37% | 18% | 10% | 156 g |
| Fri 26 May | 674 GWh | 12% | 34% | 19% | 13% | 144 g |
| Sat 27 May | 626 GWh | 20% | 21% | 20% | 14% | 99 g |
| Sun 28 May | 589 GWh | 21% | 17% | 21% | 13% | 88 g |
| Mon 29 May | 609 GWh | 23% | 16% | 21% | 14% | 76 g |
| Tue 30 May | 677 GWh | 20% | 27% | 19% | 10% | 117 g |
| Wed 31 May | 688 GWh | 20% | 33% | 18% | 7% | 142 g |