UK electricity in September 2018
Day by day: how Great Britain made its electricity in September 2018.
In September 2018, gas made 30% of Britain's electricity, then nuclear (23%). Renewables made 33%, against 20% a year earlier; average carbon intensity 189 g/kWh.
Electricity generated each day, September 2018
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
September 2018 in total
| Source | Electricity | Share |
|---|---|---|
| Gas | 6,668 GWh | 30.0% |
| Nuclear | 5,186 GWh | 23.3% |
| Wind | 4,591 GWh | 20.6% |
| Imports | 1,527 GWh | 6.9% |
| Biomass | 1,433 GWh | 6.4% |
| Coal | 1,273 GWh | 5.7% |
| Solar | 1,065 GWh | 4.8% |
| Hydro | 285 GWh | 1.3% |
| Pumped storage | 158 GWh | 0.7% |
| Other | 75.5 GWh | 0.3% |
| Renewable (wind, solar, hydro, biomass) | 33.1% | |
| Low carbon (renewable plus nuclear) | 56.4% |
Standout days
- Windiest day276.5 GWh of windFri, 21 September 2018
- Highest wind share36.6%Fri, 21 September 2018
- Sunniest day51.2 GWh of solarTue, 25 September 2018
- Cleanest day117 g/kWh averageWed, 19 September 2018
- Dirtiest day251 g/kWh averageTue, 4 September 2018
Every day
| Day | Total | Wind | Gas | Nuclear | Solar | Carbon |
|---|---|---|---|---|---|---|
| Sat 1 Sept | 670 GWh | 10% | 35% | 27% | 7% | 191 g |
| Sun 2 Sept | 653 GWh | 16% | 30% | 28% | 8% | 157 g |
| Mon 3 Sept | 754 GWh | 7% | 45% | 25% | 5% | 235 g |
| Tue 4 Sept | 757 GWh | 9% | 44% | 25% | 4% | 251 g |
| Wed 5 Sept | 772 GWh | 9% | 42% | 24% | 5% | 245 g |
| Thu 6 Sept | 777 GWh | 10% | 41% | 24% | 4% | 242 g |
| Fri 7 Sept | 747 GWh | 21% | 26% | 25% | 6% | 186 g |
| Sat 8 Sept | 673 GWh | 17% | 34% | 26% | 3% | 216 g |
| Sun 9 Sept | 657 GWh | 32% | 20% | 25% | 6% | 130 g |
| Mon 10 Sept | 745 GWh | 30% | 26% | 22% | 4% | 141 g |
| Tue 11 Sept | 779 GWh | 31% | 24% | 22% | 3% | 172 g |
| Wed 12 Sept | 771 GWh | 19% | 33% | 23% | 4% | 203 g |
| Thu 13 Sept | 779 GWh | 20% | 32% | 22% | 6% | 194 g |
| Fri 14 Sept | 753 GWh | 24% | 28% | 23% | 4% | 173 g |
| Sat 15 Sept | 681 GWh | 15% | 30% | 26% | 5% | 199 g |
| Sun 16 Sept | 680 GWh | 30% | 21% | 26% | 4% | 145 g |
| Mon 17 Sept | 761 GWh | 22% | 31% | 23% | 4% | 182 g |
| Tue 18 Sept | 747 GWh | 34% | 22% | 23% | 4% | 120 g |
| Wed 19 Sept | 768 GWh | 34% | 21% | 23% | 4% | 117 g |
| Thu 20 Sept | 773 GWh | 23% | 34% | 22% | 2% | 187 g |
| Fri 21 Sept | 755 GWh | 37% | 17% | 22% | 5% | 121 g |
| Sat 22 Sept | 733 GWh | 20% | 31% | 22% | 2% | 200 g |
| Sun 23 Sept | 711 GWh | 22% | 27% | 23% | 5% | 199 g |
| Mon 24 Sept | 805 GWh | 13% | 32% | 20% | 6% | 240 g |
| Tue 25 Sept | 796 GWh | 18% | 26% | 21% | 6% | 217 g |
| Wed 26 Sept | 801 GWh | 24% | 23% | 20% | 6% | 189 g |
| Thu 27 Sept | 784 GWh | 19% | 27% | 21% | 6% | 220 g |
| Fri 28 Sept | 787 GWh | 13% | 35% | 21% | 6% | 226 g |
| Sat 29 Sept | 703 GWh | 18% | 32% | 23% | 7% | 200 g |
| Sun 30 Sept | 692 GWh | 24% | 30% | 24% | 3% | 178 g |