UK electricity in September 2012
Day by day: how Great Britain made its electricity in September 2012.
In September 2012, coal made 41% of Britain's electricity, then nuclear (22%). Renewables made 8%, against 6% a year earlier; average carbon intensity 471 g/kWh.
Electricity generated each day, September 2012
GWh a day
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the numbers
- Nuclear
- Gas
- Hydro
- Imports
- Pumped storage
- Wind
- 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
September 2012 in total
| Source | Electricity | Share |
|---|---|---|
| Coal | 9,857 GWh | 40.8% |
| Nuclear | 5,431 GWh | 22.5% |
| Gas | 4,898 GWh | 20.3% |
| Wind | 1,676 GWh | 6.9% |
| Imports | 1,537 GWh | 6.4% |
| Other | 283 GWh | 1.2% |
| Hydro | 254 GWh | 1.0% |
| Pumped storage | 217 GWh | 0.9% |
| Renewable (wind, solar, hydro, biomass) | 8.0% | |
| Low carbon (renewable plus nuclear) | 30.5% |
Standout days
- Windiest day105.6 GWh of windTue, 25 September 2012
- Highest wind share12.4%Fri, 14 September 2012
- Sunniest day0.0 GWh of solarSat, 1 September 2012
- Cleanest day411 g/kWh averageSat, 1 September 2012
- Dirtiest day521 g/kWh averageThu, 20 September 2012
Every day
| Day | Total | Wind | Gas | Nuclear | Solar | Carbon |
|---|---|---|---|---|---|---|
| Sat 1 Sept | 718 GWh | 8% | 20% | 27% | 0% | 411 g |
| Sun 2 Sept | 713 GWh | 4% | 23% | 27% | 0% | 415 g |
| Mon 3 Sept | 810 GWh | 4% | 27% | 24% | 0% | 462 g |
| Tue 4 Sept | 833 GWh | 7% | 25% | 23% | 0% | 455 g |
| Wed 5 Sept | 819 GWh | 4% | 24% | 23% | 0% | 495 g |
| Thu 6 Sept | 818 GWh | 6% | 22% | 23% | 0% | 497 g |
| Fri 7 Sept | 808 GWh | 4% | 21% | 23% | 0% | 503 g |
| Sat 8 Sept | 721 GWh | 3% | 22% | 25% | 0% | 477 g |
| Sun 9 Sept | 698 GWh | 7% | 19% | 25% | 0% | 443 g |
| Mon 10 Sept | 823 GWh | 5% | 21% | 22% | 0% | 502 g |
| Tue 11 Sept | 831 GWh | 8% | 20% | 21% | 0% | 493 g |
| Wed 12 Sept | 844 GWh | 7% | 23% | 20% | 0% | 511 g |
| Thu 13 Sept | 849 GWh | 8% | 23% | 19% | 0% | 495 g |
| Fri 14 Sept | 812 GWh | 12% | 19% | 20% | 0% | 451 g |
| Sat 15 Sept | 724 GWh | 8% | 17% | 22% | 0% | 459 g |
| Sun 16 Sept | 713 GWh | 9% | 19% | 25% | 0% | 415 g |
| Mon 17 Sept | 820 GWh | 8% | 23% | 22% | 0% | 448 g |
| Tue 18 Sept | 834 GWh | 9% | 20% | 22% | 0% | 472 g |
| Wed 19 Sept | 848 GWh | 6% | 23% | 21% | 0% | 499 g |
| Thu 20 Sept | 860 GWh | 4% | 24% | 20% | 0% | 521 g |
| Fri 21 Sept | 856 GWh | 3% | 25% | 19% | 0% | 506 g |
| Sat 22 Sept | 755 GWh | 2% | 21% | 22% | 0% | 503 g |
| Sun 23 Sept | 762 GWh | 7% | 17% | 22% | 0% | 480 g |
| Mon 24 Sept | 877 GWh | 11% | 17% | 21% | 0% | 461 g |
| Tue 25 Sept | 885 GWh | 12% | 15% | 22% | 0% | 446 g |
| Wed 26 Sept | 898 GWh | 6% | 18% | 23% | 0% | 484 g |
| Thu 27 Sept | 855 GWh | 3% | 18% | 24% | 0% | 501 g |
| Fri 28 Sept | 860 GWh | 10% | 12% | 23% | 0% | 489 g |
| Sat 29 Sept | 760 GWh | 11% | 13% | 25% | 0% | 427 g |
| Sun 30 Sept | 753 GWh | 12% | 16% | 24% | 0% | 422 g |