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Daily UK grid report
UK Electricity Grid Daily Report — 23 October 2025

On 23 October 2025, Britain’s electricity grid averaged 33.49 GW of grid demand, with renewables averaging 68.7% of tracked domestic generation and carbon intensity averaging 82 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 33.49 GW

Average grid demand for this UK day.

Peak demand 40.25 GW

Highest 15-minute grid demand period.

Avg carbon 82 gCO₂/kWh

Average carbon intensity where available.

Renewables 68.7 %

Average renewable share of tracked generation.

Average grid demandDemand
33.49 GWFull-day average from available snapshots
↓ −0.60 GW vs yesterday
Peak demand18:15
40.25 GWHighest 15-minute grid demand period
↑ +0.58 GW vs yesterday
Lowest demand03:15
23.80 GWLowest 15-minute grid demand period
↓ −1.74 GW vs yesterday
Domestic generationSupply
26.83 GWTracked UK generation sources only
↓ −2.92 GW vs yesterday
Average carbonCO₂
82 gCO₂/kWhCarbon intensity average
↓ −84 g vs yesterday
Renewable shareClean
68.7 %Wind, solar, hydro and biomass
↑ +27.1 pts vs yesterday
Clean share+ Nuclear
83.7 %Renewables plus nuclear
↑ +28.7 pts vs yesterday
Net importsFlow
6.26 GWAverage imports minus exports
↑ +4.31 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 23 October 2025, Britain’s electricity grid averaged 33.49 GW of grid demand, with renewables averaging 68.7% of tracked domestic generation and carbon intensity averaging 82 gCO₂/kWh.

The highest demand period was 40.25 GW at 18:15, while the lowest carbon intensity period was 40 gCO₂/kWh at 13:30.

Key records for 23 October 2025

Highest wind18.77 GW21:00
Highest solar4.36 GW13:00
Highest gas6.81 GW00:00
Lowest carbon40 gCO₂/kWh13:30
Highest imports8.30 GW19:45
Highest exports2.17 GW00:00

Daily chart

Demand, generation and carbon intensity

23 October 2025

Generation mix

Wind, solar, gas and interconnector flow