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Daily UK grid report
UK Electricity Grid Daily Report — 4 August 2026

On 4 August 2026, Britain’s electricity grid averaged 31.19 GW of grid demand, with renewables averaging 53.1% of tracked domestic generation and carbon intensity averaging 154 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 31.19 GW

Average grid demand for this UK day.

Peak demand 36.68 GW

Highest 15-minute grid demand period.

Avg carbon 154 gCO₂/kWh

Average carbon intensity where available.

Renewables 53.1 %

Average renewable share of tracked generation.

Average grid demandDemand
31.19 GWFull-day average from available snapshots
↑ +1.46 GW vs yesterday
Peak demand17:00
36.68 GWHighest 15-minute grid demand period
↓ −0.07 GW vs yesterday
Lowest demand05:15
24.18 GWLowest 15-minute grid demand period
↑ +3.57 GW vs yesterday
Domestic generationSupply
27.14 GWTracked UK generation sources only
↑ +2.63 GW vs yesterday
Average carbonCO₂
154 gCO₂/kWhCarbon intensity average
↑ +5 g vs yesterday
Renewable shareClean
53.1 %Wind, solar, hydro and biomass
↓ −3.0 pts vs yesterday
Clean share+ Nuclear
67.3 %Renewables plus nuclear
↓ −3.2 pts vs yesterday
Net importsFlow
2.32 GWAverage imports minus exports
↓ −2.01 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 4 August 2026, Britain’s electricity grid averaged 31.19 GW of grid demand, with renewables averaging 53.1% of tracked domestic generation and carbon intensity averaging 154 gCO₂/kWh.

The highest demand period was 36.68 GW at 17:00, while the lowest carbon intensity period was 86 gCO₂/kWh at 16:00.

Key records for 4 August 2026

Highest wind12.57 GW22:00
Highest solar8.86 GW13:30
Highest gas9.73 GW19:30
Lowest carbon86 gCO₂/kWh16:00
Highest imports7.99 GW10:00
Highest exports4.30 GW23:30

Daily chart

Demand, generation and carbon intensity

4 August 2026

Generation mix

Wind, solar, gas and interconnector flow