UK electricity in September 2011
Day by day: how Great Britain made its electricity in September 2011.
In September 2011, gas made 46% of Britain's electricity, then coal (26%). Renewables made 6%, against 3% a year earlier; average carbon intensity 426 g/kWh.
Electricity generated each day, September 2011
GWh a day
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the numbers
- Nuclear
- Gas
- Hydro
- Imports
- Pumped storage
- Wind
- Coal
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
September 2011 in total
| Source | Electricity | Share |
|---|---|---|
| Gas | 11.3 TWh | 45.7% |
| Coal | 6,525 GWh | 26.5% |
| Nuclear | 4,421 GWh | 17.9% |
| Wind | 1,250 GWh | 5.1% |
| Imports | 588 GWh | 2.4% |
| Hydro | 346 GWh | 1.4% |
| Pumped storage | 240 GWh | 1.0% |
| Renewable (wind, solar, hydro, biomass) | 6.5% | |
| Low carbon (renewable plus nuclear) | 24.4% |
Standout days
- Windiest day87.0 GWh of windTue, 6 September 2011
- Highest wind share10.2%Tue, 6 September 2011
- Sunniest day0.0 GWh of solarThu, 1 September 2011
- Cleanest day348 g/kWh averageSat, 17 September 2011
- Dirtiest day482 g/kWh averageThu, 15 September 2011
Every day
| Day | Total | Wind | Gas | Nuclear | Solar | Carbon |
|---|---|---|---|---|---|---|
| Thu 1 Sept | 828 GWh | 1% | 44% | 21% | 0% | 453 g |
| Fri 2 Sept | 823 GWh | 3% | 42% | 20% | 0% | 447 g |
| Sat 3 Sept | 748 GWh | 3% | 44% | 20% | 0% | 422 g |
| Sun 4 Sept | 724 GWh | 2% | 45% | 21% | 0% | 406 g |
| Mon 5 Sept | 833 GWh | 5% | 45% | 19% | 0% | 420 g |
| Tue 6 Sept | 854 GWh | 10% | 41% | 19% | 0% | 397 g |
| Wed 7 Sept | 848 GWh | 9% | 41% | 19% | 0% | 401 g |
| Thu 8 Sept | 857 GWh | 5% | 43% | 19% | 0% | 437 g |
| Fri 9 Sept | 852 GWh | 3% | 44% | 18% | 0% | 470 g |
| Sat 10 Sept | 755 GWh | 8% | 39% | 20% | 0% | 401 g |
| Sun 11 Sept | 718 GWh | 9% | 38% | 21% | 0% | 375 g |
| Mon 12 Sept | 836 GWh | 9% | 39% | 19% | 0% | 398 g |
| Tue 13 Sept | 817 GWh | 9% | 40% | 19% | 0% | 405 g |
| Wed 14 Sept | 833 GWh | 6% | 39% | 19% | 0% | 431 g |
| Thu 15 Sept | 852 GWh | 1% | 44% | 18% | 0% | 482 g |
| Fri 16 Sept | 848 GWh | 4% | 45% | 18% | 0% | 445 g |
| Sat 17 Sept | 745 GWh | 5% | 55% | 21% | 0% | 348 g |
| Sun 18 Sept | 732 GWh | 2% | 55% | 21% | 0% | 357 g |
| Mon 19 Sept | 853 GWh | 4% | 50% | 18% | 0% | 421 g |
| Tue 20 Sept | 877 GWh | 5% | 47% | 16% | 0% | 442 g |
| Wed 21 Sept | 868 GWh | 8% | 46% | 16% | 0% | 431 g |
| Thu 22 Sept | 863 GWh | 6% | 45% | 16% | 0% | 439 g |
| Fri 23 Sept | 841 GWh | 5% | 48% | 16% | 0% | 446 g |
| Sat 24 Sept | 748 GWh | 4% | 49% | 17% | 0% | 420 g |
| Sun 25 Sept | 734 GWh | 7% | 48% | 17% | 0% | 402 g |
| Mon 26 Sept | 852 GWh | 4% | 50% | 15% | 0% | 450 g |
| Tue 27 Sept | 879 GWh | 4% | 51% | 15% | 0% | 452 g |
| Wed 28 Sept | 874 GWh | 5% | 52% | 14% | 0% | 445 g |
| Thu 29 Sept | 880 GWh | 4% | 51% | 13% | 0% | 462 g |
| Fri 30 Sept | 861 GWh | 3% | 53% | 13% | 0% | 472 g |