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Daily UK grid report
UK Electricity Grid Daily Report — 12 December 2023

On 12 December 2023, Britain’s electricity grid averaged 36.96 GW of grid demand, with renewables averaging 37.5% of tracked domestic generation and carbon intensity averaging 195 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 36.96 GW

Average grid demand for this UK day.

Peak demand 43.76 GW

Highest 15-minute grid demand period.

Avg carbon 195 gCO₂/kWh

Average carbon intensity where available.

Renewables 37.5 %

Average renewable share of tracked generation.

Average grid demandDemand
36.96 GWFull-day average from available snapshots
↑ +1.30 GW vs yesterday
Peak demand10:15
43.76 GWHighest 15-minute grid demand period
↑ +0.52 GW vs yesterday
Lowest demand03:15
26.37 GWLowest 15-minute grid demand period
↑ +0.92 GW vs yesterday
Domestic generationSupply
33.79 GWTracked UK generation sources only
↑ +2.07 GW vs yesterday
Average carbonCO₂
195 gCO₂/kWhCarbon intensity average
↑ +21 g vs yesterday
Renewable shareClean
37.5 %Wind, solar, hydro and biomass
↓ −3.4 pts vs yesterday
Clean share+ Nuclear
52.0 %Renewables plus nuclear
↓ −4.1 pts vs yesterday
Net importsFlow
1.48 GWAverage imports minus exports
↓ −2.07 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 12 December 2023, Britain’s electricity grid averaged 36.96 GW of grid demand, with renewables averaging 37.5% of tracked domestic generation and carbon intensity averaging 195 gCO₂/kWh.

The highest demand period was 43.76 GW at 10:15, while the lowest carbon intensity period was 114 gCO₂/kWh at 03:30.

Key records for 12 December 2023

Highest wind13.70 GW07:00
Highest solar1.63 GW11:00
Highest gas21.81 GW17:00
Lowest carbon114 gCO₂/kWh03:30
Highest imports6.13 GW23:45
Highest exports4.47 GW07:00

Daily chart

Demand, generation and carbon intensity

12 December 2023

Generation mix

Wind, solar, gas and interconnector flow