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Daily UK grid report
UK Electricity Grid Daily Report — 9 June 2025

On 9 June 2025, Britain’s electricity grid averaged 29.39 GW of grid demand, with renewables averaging 53.8% of tracked domestic generation and carbon intensity averaging 105 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 29.39 GW

Average grid demand for this UK day.

Peak demand 34.15 GW

Highest 15-minute grid demand period.

Avg carbon 105 gCO₂/kWh

Average carbon intensity where available.

Renewables 53.8 %

Average renewable share of tracked generation.

Average grid demandDemand
29.39 GWFull-day average from available snapshots
↑ +1.60 GW vs yesterday
Peak demand18:00
34.15 GWHighest 15-minute grid demand period
↑ +1.56 GW vs yesterday
Lowest demand04:30
21.52 GWLowest 15-minute grid demand period
↓ −1.23 GW vs yesterday
Domestic generationSupply
23.61 GWTracked UK generation sources only
↑ +0.67 GW vs yesterday
Average carbonCO₂
105 gCO₂/kWhCarbon intensity average
↑ +34 g vs yesterday
Renewable shareClean
53.8 %Wind, solar, hydro and biomass
↓ −8.2 pts vs yesterday
Clean share+ Nuclear
72.9 %Renewables plus nuclear
↓ −8.2 pts vs yesterday
Net importsFlow
4.78 GWAverage imports minus exports
↑ +1.53 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 9 June 2025, Britain’s electricity grid averaged 29.39 GW of grid demand, with renewables averaging 53.8% of tracked domestic generation and carbon intensity averaging 105 gCO₂/kWh.

The highest demand period was 34.15 GW at 18:00, while the lowest carbon intensity period was 63 gCO₂/kWh at 23:30.

Key records for 9 June 2025

Highest wind13.46 GW23:30
Highest solar7.45 GW13:00
Highest gas9.12 GW20:30
Lowest carbon63 gCO₂/kWh23:30
Highest imports7.06 GW07:00
Highest exports2.53 GW20:30

Daily chart

Demand, generation and carbon intensity

9 June 2025

Generation mix

Wind, solar, gas and interconnector flow