UK electricity in 2019
How Great Britain made its electricity in 2019, from 365 days of half-hourly data.
In 2019, gas made 39% of Britain's electricity, ahead of wind (20%). Renewables made 31% (up from 27% in 2018), and the average carbon intensity was 189 g/kWh.
87 of 365 days were coal-free.
Electricity generated each day in 2019
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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2019 in total
| Source | Electricity | Share |
|---|---|---|
| Gas | 114.5 TWh | 39.3% |
| Wind | 58.4 TWh | 20.0% |
| Nuclear | 52.8 TWh | 18.1% |
| Imports | 25.1 TWh | 8.6% |
| Biomass | 17.2 TWh | 5.9% |
| Solar | 11.5 TWh | 3.9% |
| Coal | 5,938 GWh | 2.0% |
| Hydro | 3,575 GWh | 1.2% |
| Pumped storage | 1,689 GWh | 0.6% |
| Other | 775 GWh | 0.3% |
| Renewable (wind, solar, hydro, biomass) | 31.1% | |
| Low carbon (renewable plus nuclear) | 49.2% |
Standout days
- Windiest day345.5 GWh of windTue, 10 December 2019
- Highest wind share42.9%Sun, 8 December 2019
- Sunniest day77.2 GWh of solarThu, 27 June 2019
- Cleanest day73 g/kWh averageSat, 17 August 2019
- Dirtiest day348 g/kWh averageThu, 24 January 2019
- Busiest day1026.8 GWh in totalThu, 31 January 2019
Month by month
| Month | Total | Wind | Gas | Nuclear | Solar | Carbon |
|---|---|---|---|---|---|---|
| January 2019 | 28.8 TWh | 18% | 46% | 16% | 1% | 249 g |
| February 2019 | 24.7 TWh | 21% | 39% | 17% | 3% | 196 g |
| March 2019 | 25.8 TWh | 24% | 36% | 16% | 4% | 175 g |
| April 2019 | 23.5 TWh | 19% | 41% | 19% | 6% | 190 g |
| May 2019 | 22.8 TWh | 13% | 42% | 20% | 7% | 186 g |
| June 2019 | 21.4 TWh | 18% | 42% | 15% | 6% | 192 g |
| July 2019 | 22.4 TWh | 15% | 44% | 17% | 7% | 195 g |
| August 2019 | 21.7 TWh | 22% | 33% | 20% | 7% | 157 g |
| September 2019 | 21.9 TWh | 22% | 34% | 21% | 5% | 156 g |
| October 2019 | 25.0 TWh | 23% | 40% | 20% | 2% | 180 g |
| November 2019 | 26.5 TWh | 19% | 41% | 18% | 1% | 217 g |
| December 2019 | 26.8 TWh | 26% | 33% | 18% | 1% | 179 g |