UK electricity in January 2021
Day by day: how Great Britain made its electricity in January 2021.
In January 2021, gas made 41% of Britain's electricity, then wind (22%). Renewables made 30%, against 38% a year earlier; average carbon intensity 210 g/kWh.
Electricity generated each day, January 2021
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
January 2021 in total
| Source | Electricity | Share |
|---|---|---|
| Gas | 11.1 TWh | 40.7% |
| Wind | 5,910 GWh | 21.6% |
| Nuclear | 4,262 GWh | 15.6% |
| Imports | 2,216 GWh | 8.1% |
| Biomass | 1,646 GWh | 6.0% |
| Coal | 1,174 GWh | 4.3% |
| Hydro | 346 GWh | 1.3% |
| Solar | 277 GWh | 1.0% |
| Pumped storage | 183 GWh | 0.7% |
| Other | 179 GWh | 0.7% |
| Renewable (wind, solar, hydro, biomass) | 29.9% | |
| Low carbon (renewable plus nuclear) | 45.6% |
Standout days
- Windiest day351.3 GWh of windThu, 21 January 2021
- Highest wind share40.1%Sat, 16 January 2021
- Sunniest day24.1 GWh of solarFri, 22 January 2021
- Cleanest day131 g/kWh averageThu, 21 January 2021
- Dirtiest day287 g/kWh averageFri, 8 January 2021
Every day
| Day | Total | Wind | Gas | Nuclear | Solar | Carbon |
|---|---|---|---|---|---|---|
| Fri 1 Jan | 784 GWh | 16% | 42% | 18% | 1% | 195 g |
| Sat 2 Jan | 803 GWh | 14% | 46% | 18% | 1% | 216 g |
| Sun 3 Jan | 815 GWh | 22% | 39% | 17% | 1% | 181 g |
| Mon 4 Jan | 924 GWh | 26% | 39% | 15% | 1% | 186 g |
| Tue 5 Jan | 937 GWh | 23% | 43% | 15% | 1% | 221 g |
| Wed 6 Jan | 951 GWh | 13% | 48% | 15% | 1% | 270 g |
| Thu 7 Jan | 962 GWh | 10% | 51% | 15% | 1% | 286 g |
| Fri 8 Jan | 953 GWh | 10% | 52% | 15% | 0% | 287 g |
| Sat 9 Jan | 880 GWh | 15% | 48% | 16% | 1% | 253 g |
| Sun 10 Jan | 847 GWh | 21% | 42% | 17% | 1% | 224 g |
| Mon 11 Jan | 921 GWh | 37% | 34% | 15% | 1% | 167 g |
| Tue 12 Jan | 905 GWh | 18% | 43% | 16% | 1% | 244 g |
| Wed 13 Jan | 916 GWh | 11% | 48% | 15% | 0% | 283 g |
| Thu 14 Jan | 918 GWh | 18% | 44% | 15% | 0% | 259 g |
| Fri 15 Jan | 925 GWh | 12% | 47% | 16% | 1% | 270 g |
| Sat 16 Jan | 827 GWh | 40% | 26% | 18% | 1% | 136 g |
| Sun 17 Jan | 805 GWh | 34% | 29% | 18% | 2% | 144 g |
| Mon 18 Jan | 891 GWh | 32% | 37% | 17% | 1% | 175 g |
| Tue 19 Jan | 858 GWh | 28% | 36% | 16% | 0% | 178 g |
| Wed 20 Jan | 870 GWh | 26% | 38% | 15% | 0% | 180 g |
| Thu 21 Jan | 893 GWh | 39% | 27% | 14% | 2% | 131 g |
| Fri 22 Jan | 887 GWh | 25% | 37% | 14% | 3% | 190 g |
| Sat 23 Jan | 852 GWh | 11% | 47% | 15% | 2% | 243 g |
| Sun 24 Jan | 859 GWh | 11% | 46% | 15% | 1% | 234 g |
| Mon 25 Jan | 941 GWh | 24% | 38% | 14% | 2% | 211 g |
| Tue 26 Jan | 939 GWh | 16% | 45% | 14% | 0% | 232 g |
| Wed 27 Jan | 901 GWh | 12% | 46% | 15% | 1% | 248 g |
| Thu 28 Jan | 859 GWh | 23% | 35% | 16% | 1% | 196 g |
| Fri 29 Jan | 844 GWh | 27% | 33% | 16% | 2% | 179 g |
| Sat 30 Jan | 804 GWh | 36% | 30% | 17% | 1% | 131 g |
| Sun 31 Jan | 840 GWh | 25% | 39% | 16% | 1% | 174 g |