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Daily UK grid report
UK Electricity Grid Daily Report — 29 October 2025

On 29 October 2025, Britain’s electricity grid averaged 34.35 GW of grid demand, with renewables averaging 55.9% of tracked domestic generation and carbon intensity averaging 128 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 34.35 GW

Average grid demand for this UK day.

Peak demand 41.78 GW

Highest 15-minute grid demand period.

Avg carbon 128 gCO₂/kWh

Average carbon intensity where available.

Renewables 55.9 %

Average renewable share of tracked generation.

Average grid demandDemand
34.35 GWFull-day average from available snapshots
↓ −0.27 GW vs yesterday
Peak demand18:00
41.78 GWHighest 15-minute grid demand period
↑ +1.08 GW vs yesterday
Lowest demand04:30
24.97 GWLowest 15-minute grid demand period
↓ −1.38 GW vs yesterday
Domestic generationSupply
30.32 GWTracked UK generation sources only
↓ −0.57 GW vs yesterday
Average carbonCO₂
128 gCO₂/kWhCarbon intensity average
↑ +55 g vs yesterday
Renewable shareClean
55.9 %Wind, solar, hydro and biomass
↓ −18.4 pts vs yesterday
Clean share+ Nuclear
69.3 %Renewables plus nuclear
↓ −17.7 pts vs yesterday
Net importsFlow
2.82 GWAverage imports minus exports
↑ +0.31 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 29 October 2025, Britain’s electricity grid averaged 34.35 GW of grid demand, with renewables averaging 55.9% of tracked domestic generation and carbon intensity averaging 128 gCO₂/kWh.

The highest demand period was 41.78 GW at 18:00, while the lowest carbon intensity period was 52 gCO₂/kWh at 01:00.

Key records for 29 October 2025

Highest wind17.30 GW00:00
Highest solar3.10 GW11:30
Highest gas17.77 GW18:00
Lowest carbon52 gCO₂/kWh01:00
Highest imports6.38 GW23:00
Highest exports3.39 GW15:00

Daily chart

Demand, generation and carbon intensity

29 October 2025

Generation mix

Wind, solar, gas and interconnector flow