History · 2018

GB electricity in 2018

In 2018, Great Britain generated 298.3 TWh of electricity, at an average carbon intensity of 214.3 gCO₂/kWh, with wind supplying 17.2% of generation.

Generation: 298.3 TWh
Avg carbon: 214.3; gCO₂/kWh
Renewable share: 22.1%; wind + solar + hydro
Peak demand: 49.8 GW; 2018-03-01

Share of generation by fuel

Wind: 17.2%
Solar: 3.8%
Nuclear: 20.3%
Biomass: 5.4%
Hydro: 1.1%
Gas: 38.6%
Coal: 5.2%
Imports: 7.4%
Other: 0.2%
Low-carbon total: 47.8%

Yearly averages of NESO's half-hourly historic mix. Wind includes NESO's embedded estimate; "not tracked" means the national data didn't break that fuel out yet - not that none was generated.

Carbon extremes of 2018

Greenest half-hour: 61 gCO₂/kWh; 2018-08-26 23:30 UTC
Dirtiest half-hour: 410 gCO₂/kWh; 2018-03-13 17:00 UTC

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