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Daily UK grid report
UK Electricity Grid Daily Report — 7 December 2025

On 7 December 2025, Britain’s electricity grid averaged 34.12 GW of grid demand, with renewables averaging 63.3% of tracked domestic generation and carbon intensity averaging 98 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 34.12 GW

Average grid demand for this UK day.

Peak demand 42.96 GW

Highest 15-minute grid demand period.

Avg carbon 98 gCO₂/kWh

Average carbon intensity where available.

Renewables 63.3 %

Average renewable share of tracked generation.

Average grid demandDemand
34.12 GWFull-day average from available snapshots
↓ −0.76 GW vs yesterday
Peak demand18:00
42.96 GWHighest 15-minute grid demand period
↑ +1.68 GW vs yesterday
Lowest demand05:30
24.54 GWLowest 15-minute grid demand period
↓ −4.19 GW vs yesterday
Domestic generationSupply
27.25 GWTracked UK generation sources only
↓ −1.12 GW vs yesterday
Average carbonCO₂
98 gCO₂/kWhCarbon intensity average
↑ +19 g vs yesterday
Renewable shareClean
63.3 %Wind, solar, hydro and biomass
↓ −4.7 pts vs yesterday
Clean share+ Nuclear
77.2 %Renewables plus nuclear
↓ −3.4 pts vs yesterday
Net importsFlow
5.78 GWAverage imports minus exports
↓ −0.03 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 7 December 2025, Britain’s electricity grid averaged 34.12 GW of grid demand, with renewables averaging 63.3% of tracked domestic generation and carbon intensity averaging 98 gCO₂/kWh.

The highest demand period was 42.96 GW at 18:00, while the lowest carbon intensity period was 47 gCO₂/kWh at 22:30.

Key records for 7 December 2025

Highest wind20.85 GW19:30
Highest solar0.57 GW10:30
Highest gas9.69 GW10:00
Lowest carbon47 gCO₂/kWh22:30
Highest imports7.94 GW02:30
Highest exports2.99 GW15:45

Daily chart

Demand, generation and carbon intensity

7 December 2025

Generation mix

Wind, solar, gas and interconnector flow