History · 2026

GB electricity in 2026 (year to date)

In 2026 so far, Great Britain generated 181.1 TWh of electricity, at an average carbon intensity of 142.2 gCO₂/kWh, with wind supplying 30.6% of generation.

2026 is still in progress - figures cover 1 January through 2026-08-15 and will change as the year fills in.

Generation: 181.1 TWh; through 2026-08-15
Avg carbon: 142.2; gCO₂/kWh
Renewable share: 40.2%; wind + solar + hydro
Peak demand: 47.4 GW; 2026-01-05

Share of generation by fuel

Wind: 30.6%
Solar: 8.5%
Nuclear: 11.2%
Biomass: 6.5%
Hydro: 1.1%
Gas: 24.4%
Coal: 0.0%
Imports: 15.3%
Other: 2.0%
Low-carbon total: 57.9%

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 2026

Greenest half-hour: 20 gCO₂/kWh; 2026-04-30 11:30 UTC
Dirtiest half-hour: 311 gCO₂/kWh; 2026-04-24 21:30 UTC

Share of generation by fuel

Carbon extremes of 2026

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