UK electricity in September 2015
Day by day: how Great Britain made its electricity in September 2015.
In September 2015, gas made 35% of Britain's electricity, then nuclear (22%). Renewables made 11%, against 6% a year earlier; average carbon intensity 332 g/kWh.
Electricity generated each day, September 2015
GWh a day
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the numbers
- Nuclear
- Gas
- Hydro
- Imports
- 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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September 2015 in total
| Source | Electricity | Share |
|---|---|---|
| Gas | 8,073 GWh | 34.5% |
| Nuclear | 5,035 GWh | 21.5% |
| Coal | 4,241 GWh | 18.1% |
| Imports | 2,063 GWh | 8.8% |
| Wind | 1,735 GWh | 7.4% |
| Other | 1,144 GWh | 4.9% |
| Solar | 776 GWh | 3.3% |
| Pumped storage | 216 GWh | 0.9% |
| Hydro | 113 GWh | 0.5% |
| Renewable (wind, solar, hydro, biomass) | 11.2% | |
| Low carbon (renewable plus nuclear) | 32.7% |
Standout days
- Windiest day134.1 GWh of windSat, 12 September 2015
- Highest wind share19.2%Sat, 12 September 2015
- Sunniest day39.2 GWh of solarSun, 6 September 2015
- Cleanest day258 g/kWh averageSat, 12 September 2015
- Dirtiest day381 g/kWh averageFri, 18 September 2015
Every day
| Day | Total | Wind | Gas | Nuclear | Solar | Carbon |
|---|---|---|---|---|---|---|
| Tue 1 Sept | 786 GWh | 6% | 38% | 20% | 3% | 338 g |
| Wed 2 Sept | 796 GWh | 6% | 39% | 21% | 3% | 325 g |
| Thu 3 Sept | 796 GWh | 10% | 36% | 21% | 2% | 313 g |
| Fri 4 Sept | 781 GWh | 11% | 35% | 21% | 3% | 300 g |
| Sat 5 Sept | 699 GWh | 12% | 30% | 24% | 3% | 283 g |
| Sun 6 Sept | 690 GWh | 9% | 29% | 25% | 6% | 278 g |
| Mon 7 Sept | 802 GWh | 3% | 38% | 21% | 4% | 350 g |
| Tue 8 Sept | 810 GWh | 2% | 38% | 21% | 2% | 364 g |
| Wed 9 Sept | 808 GWh | 6% | 35% | 22% | 3% | 353 g |
| Thu 10 Sept | 798 GWh | 12% | 29% | 22% | 5% | 309 g |
| Fri 11 Sept | 776 GWh | 16% | 28% | 22% | 4% | 279 g |
| Sat 12 Sept | 698 GWh | 19% | 22% | 24% | 4% | 258 g |
| Sun 13 Sept | 695 GWh | 6% | 30% | 24% | 3% | 328 g |
| Mon 14 Sept | 806 GWh | 7% | 37% | 21% | 2% | 356 g |
| Tue 15 Sept | 824 GWh | 7% | 38% | 22% | 2% | 340 g |
| Wed 16 Sept | 831 GWh | 4% | 39% | 21% | 2% | 373 g |
| Thu 17 Sept | 821 GWh | 4% | 35% | 21% | 3% | 361 g |
| Fri 18 Sept | 815 GWh | 3% | 37% | 21% | 3% | 381 g |
| Sat 19 Sept | 728 GWh | 2% | 34% | 23% | 4% | 351 g |
| Sun 20 Sept | 712 GWh | 5% | 33% | 23% | 3% | 333 g |
| Mon 21 Sept | 811 GWh | 7% | 36% | 20% | 1% | 360 g |
| Tue 22 Sept | 823 GWh | 7% | 37% | 19% | 2% | 361 g |
| Wed 23 Sept | 811 GWh | 9% | 36% | 20% | 3% | 336 g |
| Thu 24 Sept | 796 GWh | 15% | 32% | 19% | 4% | 301 g |
| Fri 25 Sept | 804 GWh | 8% | 36% | 20% | 4% | 338 g |
| Sat 26 Sept | 727 GWh | 2% | 37% | 22% | 4% | 342 g |
| Sun 27 Sept | 710 GWh | 5% | 34% | 23% | 5% | 320 g |
| Mon 28 Sept | 811 GWh | 7% | 34% | 21% | 4% | 346 g |
| Tue 29 Sept | 819 GWh | 7% | 34% | 21% | 4% | 342 g |
| Wed 30 Sept | 817 GWh | 6% | 32% | 22% | 4% | 348 g |