UK electricity in December 2012
Day by day: how Great Britain made its electricity in December 2012.
In December 2012, coal made 45% of Britain's electricity, then gas (22%). Renewables made 8%, against 8% a year earlier; average carbon intensity 513 g/kWh.
Electricity generated each day, December 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
December 2012 in total
| Source | Electricity | Share |
|---|---|---|
| Coal | 13.5 TWh | 44.6% |
| Gas | 6,592 GWh | 21.8% |
| Nuclear | 5,865 GWh | 19.4% |
| Wind | 2,200 GWh | 7.3% |
| Imports | 1,081 GWh | 3.6% |
| Other | 403 GWh | 1.3% |
| Hydro | 348 GWh | 1.2% |
| Pumped storage | 254 GWh | 0.8% |
| Renewable (wind, solar, hydro, biomass) | 8.4% | |
| Low carbon (renewable plus nuclear) | 27.8% |
Standout days
- Windiest day127.4 GWh of windSun, 30 December 2012
- Highest wind share15.3%Sun, 30 December 2012
- Sunniest day0.0 GWh of solarSat, 1 December 2012
- Cleanest day408 g/kWh averageSat, 29 December 2012
- Dirtiest day572 g/kWh averageTue, 11 December 2012
Every day
| Day | Total | Wind | Gas | Nuclear | Solar | Carbon |
|---|---|---|---|---|---|---|
| Sat 1 Dec | 962 GWh | 6% | 25% | 19% | 0% | 537 g |
| Sun 2 Dec | 954 GWh | 3% | 26% | 19% | 0% | 549 g |
| Mon 3 Dec | 1,050 GWh | 7% | 22% | 18% | 0% | 541 g |
| Tue 4 Dec | 1,057 GWh | 6% | 23% | 19% | 0% | 542 g |
| Wed 5 Dec | 1,079 GWh | 5% | 26% | 18% | 0% | 555 g |
| Thu 6 Dec | 1,103 GWh | 7% | 28% | 18% | 0% | 518 g |
| Fri 7 Dec | 1,063 GWh | 9% | 24% | 18% | 0% | 522 g |
| Sat 8 Dec | 959 GWh | 7% | 23% | 19% | 0% | 521 g |
| Sun 9 Dec | 921 GWh | 12% | 18% | 20% | 0% | 469 g |
| Mon 10 Dec | 1,062 GWh | 5% | 25% | 18% | 0% | 543 g |
| Tue 11 Dec | 1,115 GWh | 1% | 31% | 17% | 0% | 572 g |
| Wed 12 Dec | 1,143 GWh | 1% | 33% | 16% | 0% | 569 g |
| Thu 13 Dec | 1,141 GWh | 3% | 32% | 16% | 0% | 565 g |
| Fri 14 Dec | 1,086 GWh | 9% | 25% | 16% | 0% | 524 g |
| Sat 15 Dec | 944 GWh | 9% | 19% | 18% | 0% | 530 g |
| Sun 16 Dec | 919 GWh | 5% | 21% | 19% | 0% | 544 g |
| Mon 17 Dec | 1,030 GWh | 4% | 26% | 17% | 0% | 549 g |
| Tue 18 Dec | 1,043 GWh | 2% | 29% | 17% | 0% | 556 g |
| Wed 19 Dec | 1,052 GWh | 9% | 24% | 18% | 0% | 512 g |
| Thu 20 Dec | 1,031 GWh | 11% | 26% | 18% | 0% | 470 g |
| Fri 21 Dec | 987 GWh | 5% | 21% | 20% | 0% | 538 g |
| Sat 22 Dec | 907 GWh | 10% | 14% | 22% | 0% | 501 g |
| Sun 23 Dec | 848 GWh | 13% | 11% | 22% | 0% | 479 g |
| Mon 24 Dec | 887 GWh | 6% | 15% | 22% | 0% | 532 g |
| Tue 25 Dec | 797 GWh | 8% | 11% | 24% | 0% | 498 g |
| Wed 26 Dec | 789 GWh | 10% | 11% | 25% | 0% | 471 g |
| Thu 27 Dec | 886 GWh | 7% | 18% | 23% | 0% | 491 g |
| Fri 28 Dec | 887 GWh | 13% | 14% | 23% | 0% | 462 g |
| Sat 29 Dec | 847 GWh | 14% | 15% | 25% | 0% | 408 g |
| Sun 30 Dec | 834 GWh | 15% | 11% | 25% | 0% | 408 g |
| Mon 31 Dec | 862 GWh | 13% | 13% | 24% | 0% | 434 g |