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Daily UK grid report
UK Electricity Grid Daily Report — 25 October 2025

On 25 October 2025, Britain’s electricity grid averaged 32.83 GW of grid demand, with renewables averaging 73.7% of tracked domestic generation and carbon intensity averaging 63 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 32.83 GW

Average grid demand for this UK day.

Peak demand 37.57 GW

Highest 15-minute grid demand period.

Avg carbon 63 gCO₂/kWh

Average carbon intensity where available.

Renewables 73.7 %

Average renewable share of tracked generation.

Average grid demandDemand
32.83 GWFull-day average from available snapshots
↓ −1.51 GW vs yesterday
Peak demand18:00
37.57 GWHighest 15-minute grid demand period
↓ −3.23 GW vs yesterday
Lowest demand05:15
27.25 GWLowest 15-minute grid demand period
↑ +2.30 GW vs yesterday
Domestic generationSupply
30.61 GWTracked UK generation sources only
↑ +1.48 GW vs yesterday
Average carbonCO₂
63 gCO₂/kWhCarbon intensity average
↓ −20 g vs yesterday
Renewable shareClean
73.7 %Wind, solar, hydro and biomass
↑ +0.3 pts vs yesterday
Clean share+ Nuclear
85.8 %Renewables plus nuclear
↓ −1.0 pts vs yesterday
Net importsFlow
0.91 GWAverage imports minus exports
↓ −3.72 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 25 October 2025, Britain’s electricity grid averaged 32.83 GW of grid demand, with renewables averaging 73.7% of tracked domestic generation and carbon intensity averaging 63 gCO₂/kWh.

The highest demand period was 37.57 GW at 18:00, while the lowest carbon intensity period was 42 gCO₂/kWh at 15:00.

Key records for 25 October 2025

Highest wind20.97 GW14:00
Highest solar6.53 GW11:30
Highest gas4.89 GW18:30
Lowest carbon42 gCO₂/kWh15:00
Highest imports6.91 GW19:00
Highest exports3.53 GW05:00

Daily chart

Demand, generation and carbon intensity

25 October 2025

Generation mix

Wind, solar, gas and interconnector flow