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Daily UK grid report
UK Electricity Grid Daily Report — 14 August 2025

On 14 August 2025, Britain’s electricity grid averaged 31.41 GW of grid demand, with renewables averaging 43.6% of tracked domestic generation and carbon intensity averaging 164 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 31.41 GW

Average grid demand for this UK day.

Peak demand 36.65 GW

Highest 15-minute grid demand period.

Avg carbon 164 gCO₂/kWh

Average carbon intensity where available.

Renewables 43.6 %

Average renewable share of tracked generation.

Average grid demandDemand
31.41 GWFull-day average from available snapshots
↑ +0.43 GW vs yesterday
Peak demand13:45
36.65 GWHighest 15-minute grid demand period
↓ −0.43 GW vs yesterday
Lowest demand01:30
24.99 GWLowest 15-minute grid demand period
↑ +1.68 GW vs yesterday
Domestic generationSupply
25.72 GWTracked UK generation sources only
↑ +0.02 GW vs yesterday
Average carbonCO₂
164 gCO₂/kWhCarbon intensity average
↓ −24 g vs yesterday
Renewable shareClean
43.6 %Wind, solar, hydro and biomass
↑ +6.6 pts vs yesterday
Clean share+ Nuclear
55.4 %Renewables plus nuclear
↑ +6.5 pts vs yesterday
Net importsFlow
3.58 GWAverage imports minus exports
↓ −0.26 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 14 August 2025, Britain’s electricity grid averaged 31.41 GW of grid demand, with renewables averaging 43.6% of tracked domestic generation and carbon intensity averaging 164 gCO₂/kWh.

The highest demand period was 36.65 GW at 13:45, while the lowest carbon intensity period was 131 gCO₂/kWh at 13:30.

Key records for 14 August 2025

Highest wind6.99 GW00:30
Highest solar9.02 GW13:00
Highest gas14.57 GW20:30
Lowest carbon131 gCO₂/kWh13:30
Highest imports8.25 GW09:00
Highest exports3.66 GW04:00

Daily chart

Demand, generation and carbon intensity

14 August 2025

Generation mix

Wind, solar, gas and interconnector flow