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Daily UK grid report
UK Electricity Grid Daily Report — 30 October 2025

On 30 October 2025, Britain’s electricity grid averaged 35.26 GW of grid demand, with renewables averaging 56.2% of tracked domestic generation and carbon intensity averaging 129 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 35.26 GW

Average grid demand for this UK day.

Peak demand 44.08 GW

Highest 15-minute grid demand period.

Avg carbon 129 gCO₂/kWh

Average carbon intensity where available.

Renewables 56.2 %

Average renewable share of tracked generation.

Average grid demandDemand
35.26 GWFull-day average from available snapshots
↑ +0.91 GW vs yesterday
Peak demand17:00
44.08 GWHighest 15-minute grid demand period
↑ +2.30 GW vs yesterday
Lowest demand04:45
25.06 GWLowest 15-minute grid demand period
↑ +0.08 GW vs yesterday
Domestic generationSupply
29.90 GWTracked UK generation sources only
↓ −0.41 GW vs yesterday
Average carbonCO₂
129 gCO₂/kWhCarbon intensity average
No change vs yesterday
Renewable shareClean
56.2 %Wind, solar, hydro and biomass
↑ +0.3 pts vs yesterday
Clean share+ Nuclear
69.9 %Renewables plus nuclear
↑ +0.6 pts vs yesterday
Net importsFlow
4.08 GWAverage imports minus exports
↑ +1.27 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 30 October 2025, Britain’s electricity grid averaged 35.26 GW of grid demand, with renewables averaging 56.2% of tracked domestic generation and carbon intensity averaging 129 gCO₂/kWh.

The highest demand period was 44.08 GW at 17:00, while the lowest carbon intensity period was 68 gCO₂/kWh at 23:30.

Key records for 30 October 2025

Highest wind22.26 GW22:30
Highest solar5.39 GW10:30
Highest gas13.72 GW16:30
Lowest carbon68 gCO₂/kWh23:30
Highest imports8.09 GW09:45
Highest exports4.62 GW23:45

Daily chart

Demand, generation and carbon intensity

30 October 2025

Generation mix

Wind, solar, gas and interconnector flow