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Daily UK grid report
UK Electricity Grid Daily Report — 1 August 2025

On 1 August 2025, Britain’s electricity grid averaged 29.36 GW of grid demand, with renewables averaging 64.8% of tracked domestic generation and carbon intensity averaging 73 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 29.36 GW

Average grid demand for this UK day.

Peak demand 34.33 GW

Highest 15-minute grid demand period.

Avg carbon 73 gCO₂/kWh

Average carbon intensity where available.

Renewables 64.8 %

Average renewable share of tracked generation.

Average grid demandDemand
29.36 GWFull-day average from available snapshots
↓ −0.12 GW vs yesterday
Peak demand12:45
34.33 GWHighest 15-minute grid demand period
↓ −0.53 GW vs yesterday
Lowest demand01:45
24.20 GWLowest 15-minute grid demand period
↑ +1.35 GW vs yesterday
Domestic generationSupply
23.46 GWTracked UK generation sources only
↓ −0.20 GW vs yesterday
Average carbonCO₂
73 gCO₂/kWhCarbon intensity average
↓ −40 g vs yesterday
Renewable shareClean
64.8 %Wind, solar, hydro and biomass
↑ +12.5 pts vs yesterday
Clean share+ Nuclear
81.4 %Renewables plus nuclear
↑ +11.2 pts vs yesterday
Net importsFlow
3.58 GWAverage imports minus exports
↓ −0.78 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 1 August 2025, Britain’s electricity grid averaged 29.36 GW of grid demand, with renewables averaging 64.8% of tracked domestic generation and carbon intensity averaging 73 gCO₂/kWh.

The highest demand period was 34.33 GW at 12:45, while the lowest carbon intensity period was 56 gCO₂/kWh at 16:00.

Key records for 1 August 2025

Highest wind11.86 GW17:00
Highest solar7.23 GW12:30
Highest gas6.06 GW19:30
Lowest carbon56 gCO₂/kWh16:00
Highest imports8.06 GW10:00
Highest exports4.11 GW05:00

Daily chart

Demand, generation and carbon intensity

1 August 2025

Generation mix

Wind, solar, gas and interconnector flow