UK electricity in 2023
How Great Britain made its electricity in 2023, from 365 days of half-hourly data.
In 2023, gas made 32% of Britain's electricity, ahead of wind (29%). Renewables made 40% (up from 38% in 2022), and the average carbon intensity was 149 g/kWh.
124 of 365 days were coal-free.
Electricity generated each day in 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
2023 in total
| Source | Electricity | Share |
|---|---|---|
| Gas | 86.7 TWh | 31.6% |
| Wind | 78.9 TWh | 28.8% |
| Nuclear | 38.3 TWh | 13.9% |
| Imports | 33.5 TWh | 12.2% |
| Solar | 13.5 TWh | 4.9% |
| Biomass | 13.4 TWh | 4.9% |
| Hydro | 3,248 GWh | 1.2% |
| Coal | 2,764 GWh | 1.0% |
| Other | 2,571 GWh | 0.9% |
| Pumped storage | 1,659 GWh | 0.6% |
| Renewable (wind, solar, hydro, biomass) | 39.7% | |
| Low carbon (renewable plus nuclear) | 53.7% |
Standout days
- Windiest day500.9 GWh of windThu, 21 December 2023
- Highest wind share60.9%Sun, 24 December 2023
- Sunniest day93.5 GWh of solarWed, 14 June 2023
- Cleanest day41 g/kWh averageThu, 28 December 2023
- Dirtiest day285 g/kWh averageFri, 1 December 2023
- Busiest day1004.1 GWh in totalThu, 7 December 2023
Month by month
| Month | Total | Wind | Gas | Nuclear | Solar | Carbon |
|---|---|---|---|---|---|---|
| January 2023 | 26.6 TWh | 36% | 28% | 14% | 2% | 140 g |
| February 2023 | 22.9 TWh | 31% | 33% | 10% | 3% | 165 g |
| March 2023 | 25.2 TWh | 29% | 34% | 12% | 3% | 157 g |
| April 2023 | 22.1 TWh | 24% | 34% | 14% | 7% | 157 g |
| May 2023 | 21.1 TWh | 19% | 34% | 15% | 9% | 147 g |
| June 2023 | 20.2 TWh | 19% | 37% | 17% | 10% | 162 g |
| July 2023 | 20.9 TWh | 29% | 30% | 15% | 8% | 137 g |
| August 2023 | 20.9 TWh | 23% | 35% | 15% | 8% | 156 g |
| September 2023 | 21.3 TWh | 25% | 33% | 17% | 6% | 155 g |
| October 2023 | 23.0 TWh | 33% | 27% | 14% | 4% | 134 g |
| November 2023 | 24.5 TWh | 31% | 31% | 12% | 2% | 159 g |
| December 2023 | 25.9 TWh | 40% | 26% | 14% | 1% | 123 g |