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Daily UK grid report
UK Electricity Grid Daily Report — 3 August 2025

On 3 August 2025, Britain’s electricity grid averaged 26.32 GW of grid demand, with renewables averaging 57.4% of tracked domestic generation and carbon intensity averaging 79 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 26.32 GW

Average grid demand for this UK day.

Peak demand 32.49 GW

Highest 15-minute grid demand period.

Avg carbon 79 gCO₂/kWh

Average carbon intensity where available.

Renewables 57.4 %

Average renewable share of tracked generation.

Average grid demandDemand
26.32 GWFull-day average from available snapshots
↓ −0.42 GW vs yesterday
Peak demand14:00
32.49 GWHighest 15-minute grid demand period
↑ +1.24 GW vs yesterday
Lowest demand05:15
20.25 GWLowest 15-minute grid demand period
↓ −2.40 GW vs yesterday
Domestic generationSupply
19.87 GWTracked UK generation sources only
↓ −0.07 GW vs yesterday
Average carbonCO₂
79 gCO₂/kWhCarbon intensity average
↑ +6 g vs yesterday
Renewable shareClean
57.4 %Wind, solar, hydro and biomass
↓ −4.8 pts vs yesterday
Clean share+ Nuclear
76.3 %Renewables plus nuclear
↓ −4.4 pts vs yesterday
Net importsFlow
5.35 GWAverage imports minus exports
↑ +0.17 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 3 August 2025, Britain’s electricity grid averaged 26.32 GW of grid demand, with renewables averaging 57.4% of tracked domestic generation and carbon intensity averaging 79 gCO₂/kWh.

The highest demand period was 32.49 GW at 14:00, while the lowest carbon intensity period was 46 gCO₂/kWh at 14:00.

Key records for 3 August 2025

Highest wind11.38 GW13:30
Highest solar8.02 GW14:30
Highest gas7.27 GW21:30
Lowest carbon46 gCO₂/kWh14:00
Highest imports8.40 GW22:45
Highest exports1.88 GW04:45

Daily chart

Demand, generation and carbon intensity

3 August 2025

Generation mix

Wind, solar, gas and interconnector flow