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Daily UK grid report
UK Electricity Grid Daily Report — 25 August 2026

On 25 August 2026, Britain’s electricity grid averaged 29.89 GW of grid demand, with renewables averaging 67.1% of tracked domestic generation and carbon intensity averaging 92 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 29.89 GW

Average grid demand for this UK day.

Peak demand 35.99 GW

Highest 15-minute grid demand period.

Avg carbon 92 gCO₂/kWh

Average carbon intensity where available.

Renewables 67.1 %

Average renewable share of tracked generation.

Average grid demandDemand
29.89 GWFull-day average from available snapshots
↑ +0.48 GW vs yesterday
Peak demand13:00
35.99 GWHighest 15-minute grid demand period
↑ +1.65 GW vs yesterday
Lowest demand05:15
21.58 GWLowest 15-minute grid demand period
↑ +0.54 GW vs yesterday
Domestic generationSupply
26.84 GWTracked UK generation sources only
↑ +2.78 GW vs yesterday
Average carbonCO₂
92 gCO₂/kWhCarbon intensity average
↓ −55 g vs yesterday
Renewable shareClean
67.1 %Wind, solar, hydro and biomass
↑ +13.6 pts vs yesterday
Clean share+ Nuclear
84.9 %Renewables plus nuclear
↑ +11.8 pts vs yesterday
Net importsFlow
1.86 GWAverage imports minus exports
↓ −2.01 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 25 August 2026, Britain’s electricity grid averaged 29.89 GW of grid demand, with renewables averaging 67.1% of tracked domestic generation and carbon intensity averaging 92 gCO₂/kWh.

The highest demand period was 35.99 GW at 13:00, while the lowest carbon intensity period was 39 gCO₂/kWh at 14:00.

Key records for 25 August 2026

Highest wind13.58 GW20:30
Highest solar12.01 GW13:00
Highest gas7.02 GW21:30
Lowest carbon39 gCO₂/kWh14:00
Highest imports6.56 GW09:00
Highest exports2.04 GW22:00

Daily chart

Demand, generation and carbon intensity

25 August 2026

Generation mix

Wind, solar, gas and interconnector flow