UK electricity in March 2021
Day by day: how Great Britain made its electricity in March 2021.
In March 2021, gas made 37% of Britain's electricity, then wind (24%). Renewables made 37%, against 40% a year earlier; average carbon intensity 174 g/kWh.
Electricity generated each day, March 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
March 2021 in total
| Source | Electricity | Share |
|---|---|---|
| Gas | 9,393 GWh | 37.3% |
| Wind | 6,148 GWh | 24.4% |
| Nuclear | 3,325 GWh | 13.2% |
| Imports | 2,492 GWh | 9.9% |
| Biomass | 1,972 GWh | 7.8% |
| Solar | 945 GWh | 3.7% |
| Hydro | 363 GWh | 1.4% |
| Coal | 286 GWh | 1.1% |
| Other | 145 GWh | 0.6% |
| Pumped storage | 144 GWh | 0.6% |
| Renewable (wind, solar, hydro, biomass) | 37.4% | |
| Low carbon (renewable plus nuclear) | 50.6% |
Standout days
- Windiest day386.1 GWh of windSun, 28 March 2021
- Highest wind share53.4%Sun, 28 March 2021
- Sunniest day60.7 GWh of solarTue, 30 March 2021
- Cleanest day62 g/kWh averageSun, 28 March 2021
- Dirtiest day305 g/kWh averageWed, 3 March 2021
Every day
| Day | Total | Wind | Gas | Nuclear | Solar | Carbon |
|---|---|---|---|---|---|---|
| Mon 1 Mar | 860 GWh | 7% | 53% | 11% | 3% | 268 g |
| Tue 2 Mar | 875 GWh | 4% | 54% | 10% | 3% | 284 g |
| Wed 3 Mar | 886 GWh | 2% | 57% | 10% | 1% | 305 g |
| Thu 4 Mar | 887 GWh | 13% | 52% | 11% | 1% | 251 g |
| Fri 5 Mar | 877 GWh | 9% | 52% | 11% | 2% | 270 g |
| Sat 6 Mar | 808 GWh | 5% | 55% | 11% | 3% | 270 g |
| Sun 7 Mar | 798 GWh | 6% | 53% | 11% | 4% | 256 g |
| Mon 8 Mar | 863 GWh | 13% | 49% | 11% | 3% | 243 g |
| Tue 9 Mar | 836 GWh | 21% | 44% | 11% | 5% | 198 g |
| Wed 10 Mar | 840 GWh | 42% | 28% | 11% | 1% | 122 g |
| Thu 11 Mar | 830 GWh | 44% | 21% | 12% | 4% | 95 g |
| Fri 12 Mar | 814 GWh | 43% | 20% | 13% | 4% | 93 g |
| Sat 13 Mar | 762 GWh | 44% | 19% | 14% | 5% | 85 g |
| Sun 14 Mar | 763 GWh | 45% | 19% | 14% | 3% | 88 g |
| Mon 15 Mar | 848 GWh | 23% | 39% | 13% | 4% | 174 g |
| Tue 16 Mar | 838 GWh | 29% | 35% | 14% | 3% | 163 g |
| Wed 17 Mar | 839 GWh | 23% | 40% | 14% | 3% | 178 g |
| Thu 18 Mar | 843 GWh | 21% | 45% | 14% | 2% | 200 g |
| Fri 19 Mar | 818 GWh | 11% | 49% | 15% | 3% | 224 g |
| Sat 20 Mar | 761 GWh | 16% | 45% | 16% | 3% | 195 g |
| Sun 21 Mar | 747 GWh | 15% | 43% | 16% | 4% | 184 g |
| Mon 22 Mar | 813 GWh | 11% | 48% | 14% | 5% | 216 g |
| Tue 23 Mar | 811 GWh | 30% | 32% | 15% | 4% | 154 g |
| Wed 24 Mar | 817 GWh | 31% | 31% | 15% | 5% | 140 g |
| Thu 25 Mar | 785 GWh | 35% | 23% | 16% | 5% | 113 g |
| Fri 26 Mar | 806 GWh | 45% | 19% | 14% | 4% | 87 g |
| Sat 27 Mar | 748 GWh | 45% | 15% | 15% | 6% | 74 g |
| Sun 28 Mar | 723 GWh | 53% | 12% | 15% | 3% | 62 g |
| Mon 29 Mar | 788 GWh | 46% | 15% | 15% | 6% | 75 g |
| Tue 30 Mar | 782 GWh | 22% | 32% | 15% | 8% | 143 g |
| Wed 31 Mar | 746 GWh | 13% | 43% | 16% | 6% | 187 g |