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Daily UK grid report
UK Electricity Grid Daily Report — 10 September 2025

On 10 September 2025, Britain’s electricity grid averaged 32.63 GW of grid demand, with renewables averaging 73.2% of tracked domestic generation and carbon intensity averaging 60 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 32.63 GW

Average grid demand for this UK day.

Peak demand 38.02 GW

Highest 15-minute grid demand period.

Avg carbon 60 gCO₂/kWh

Average carbon intensity where available.

Renewables 73.2 %

Average renewable share of tracked generation.

Average grid demandDemand
32.63 GWFull-day average from available snapshots
↑ +1.07 GW vs yesterday
Peak demand11:30
38.02 GWHighest 15-minute grid demand period
↑ +0.91 GW vs yesterday
Lowest demand04:15
25.45 GWLowest 15-minute grid demand period
↑ +1.71 GW vs yesterday
Domestic generationSupply
28.34 GWTracked UK generation sources only
↑ +0.81 GW vs yesterday
Average carbonCO₂
60 gCO₂/kWhCarbon intensity average
↓ −82 g vs yesterday
Renewable shareClean
73.2 %Wind, solar, hydro and biomass
↑ +24.5 pts vs yesterday
Clean share+ Nuclear
85.0 %Renewables plus nuclear
↑ +24.0 pts vs yesterday
Net importsFlow
1.61 GWAverage imports minus exports
↑ +0.27 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 10 September 2025, Britain’s electricity grid averaged 32.63 GW of grid demand, with renewables averaging 73.2% of tracked domestic generation and carbon intensity averaging 60 gCO₂/kWh.

The highest demand period was 38.02 GW at 11:30, while the lowest carbon intensity period was 40 gCO₂/kWh at 14:00.

Key records for 10 September 2025

Highest wind19.17 GW13:00
Highest solar5.89 GW11:30
Highest gas6.35 GW19:30
Lowest carbon40 gCO₂/kWh14:00
Highest imports5.49 GW09:30
Highest exports4.28 GW07:00

Daily chart

Demand, generation and carbon intensity

10 September 2025

Generation mix

Wind, solar, gas and interconnector flow