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

On 4 October 2026, Britain’s electricity grid averaged 29.07 GW of grid demand, with renewables averaging 57.3% of tracked domestic generation and carbon intensity averaging 136 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 29.07 GW

Average grid demand for this UK day.

Peak demand 36.60 GW

Highest 15-minute grid demand period.

Avg carbon 136 gCO₂/kWh

Average carbon intensity where available.

Renewables 57.3 %

Average renewable share of tracked generation.

Average grid demandDemand
29.07 GWFull-day average from available snapshots
↑ +0.14 GW vs yesterday
Peak demand17:00
36.60 GWHighest 15-minute grid demand period
↑ +3.69 GW vs yesterday
Lowest demand04:30
20.95 GWLowest 15-minute grid demand period
↓ −3.22 GW vs yesterday
Domestic generationSupply
25.85 GWTracked UK generation sources only
↑ +0.92 GW vs yesterday
Average carbonCO₂
136 gCO₂/kWhCarbon intensity average
↓ −24 g vs yesterday
Renewable shareClean
57.3 %Wind, solar, hydro and biomass
↑ +7.0 pts vs yesterday
Clean share+ Nuclear
73.5 %Renewables plus nuclear
↑ +7.0 pts vs yesterday
Net importsFlow
1.84 GWAverage imports minus exports
↓ −0.30 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 4 October 2026, Britain’s electricity grid averaged 29.07 GW of grid demand, with renewables averaging 57.3% of tracked domestic generation and carbon intensity averaging 136 gCO₂/kWh.

The highest demand period was 36.60 GW at 17:00, while the lowest carbon intensity period was 84 gCO₂/kWh at 09:30.

Key records for 4 October 2026

Highest wind11.14 GW21:30
Highest solar10.42 GW12:00
Highest gas13.47 GW19:00
Lowest carbon84 gCO₂/kWh09:30
Highest imports8.03 GW12:00
Highest exports4.10 GW21:00

Daily chart

Demand, generation and carbon intensity

4 October 2026

Generation mix

Wind, solar, gas and interconnector flow