UK electricity in 2015
How Great Britain made its electricity in 2015, from 365 days of half-hourly data.
In 2015, gas made 28% of Britain's electricity, ahead of coal (24%). Renewables made 14% (up from 11% in 2014), and the average carbon intensity was 356 g/kWh.
Electricity generated each day in 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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2015 in total
| Source | Electricity | Share |
|---|---|---|
| Gas | 84.3 TWh | 27.7% |
| Coal | 74.5 TWh | 24.4% |
| Nuclear | 65.7 TWh | 21.6% |
| Wind | 31.7 TWh | 10.4% |
| Imports | 23.3 TWh | 7.6% |
| Other | 11.3 TWh | 3.7% |
| Solar | 7,216 GWh | 2.4% |
| Hydro | 4,095 GWh | 1.3% |
| Pumped storage | 2,684 GWh | 0.9% |
| Renewable (wind, solar, hydro, biomass) | 14.1% | |
| Low carbon (renewable plus nuclear) | 35.7% |
Standout days
- Windiest day198.9 GWh of windTue, 31 March 2015
- Highest wind share22.2%Thu, 1 January 2015
- Sunniest day49.1 GWh of solarSun, 7 June 2015
- Cleanest day208 g/kWh averageSat, 26 December 2015
- Dirtiest day494 g/kWh averageWed, 25 March 2015
- Busiest day1081.2 GWh in totalTue, 3 February 2015
Month by month
| Month | Total | Wind | Gas | Nuclear | Solar | Carbon |
|---|---|---|---|---|---|---|
| January 2015 | 30.0 TWh | 13% | 22% | 21% | 1% | 408 g |
| February 2015 | 27.3 TWh | 10% | 24% | 20% | 1% | 432 g |
| March 2015 | 28.2 TWh | 11% | 23% | 19% | 2% | 425 g |
| April 2015 | 24.5 TWh | 7% | 24% | 21% | 4% | 390 g |
| May 2015 | 23.9 TWh | 12% | 27% | 22% | 4% | 323 g |
| June 2015 | 22.9 TWh | 8% | 31% | 23% | 5% | 325 g |
| July 2015 | 23.2 TWh | 9% | 31% | 23% | 4% | 322 g |
| August 2015 | 22.9 TWh | 9% | 32% | 22% | 3% | 317 g |
| September 2015 | 23.4 TWh | 7% | 35% | 22% | 3% | 332 g |
| October 2015 | 25.8 TWh | 7% | 30% | 22% | 2% | 378 g |
| November 2015 | 26.2 TWh | 14% | 29% | 21% | 1% | 334 g |
| December 2015 | 26.4 TWh | 16% | 27% | 23% | 1% | 290 g |