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Daily UK grid report
UK Electricity Grid Daily Report — 9 December 2023

On 9 December 2023, Britain’s electricity grid averaged 32.88 GW of grid demand, with renewables averaging 69.4% of tracked domestic generation and carbon intensity averaging 63 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 32.88 GW

Average grid demand for this UK day.

Peak demand 40.78 GW

Highest 15-minute grid demand period.

Avg carbon 63 gCO₂/kWh

Average carbon intensity where available.

Renewables 69.4 %

Average renewable share of tracked generation.

Average grid demandDemand
32.88 GWFull-day average from available snapshots
↓ −3.79 GW vs yesterday
Peak demand17:30
40.78 GWHighest 15-minute grid demand period
↓ −4.03 GW vs yesterday
Lowest demand05:15
25.11 GWLowest 15-minute grid demand period
↓ −0.94 GW vs yesterday
Domestic generationSupply
28.75 GWTracked UK generation sources only
↓ −6.85 GW vs yesterday
Average carbonCO₂
63 gCO₂/kWhCarbon intensity average
↓ −95 g vs yesterday
Renewable shareClean
69.4 %Wind, solar, hydro and biomass
↑ +18.0 pts vs yesterday
Clean share+ Nuclear
85.9 %Renewables plus nuclear
↑ +20.6 pts vs yesterday
Net importsFlow
4.25 GWAverage imports minus exports
↑ +4.07 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 9 December 2023, Britain’s electricity grid averaged 32.88 GW of grid demand, with renewables averaging 69.4% of tracked domestic generation and carbon intensity averaging 63 gCO₂/kWh.

The highest demand period was 40.78 GW at 17:30, while the lowest carbon intensity period was 41 gCO₂/kWh at 07:00.

Key records for 9 December 2023

Highest wind19.25 GW11:00
Highest solar1.77 GW13:00
Highest gas6.09 GW16:30
Lowest carbon41 gCO₂/kWh07:00
Highest imports6.93 GW17:15
Highest exports1.37 GW04:00

Daily chart

Demand, generation and carbon intensity

9 December 2023

Generation mix

Wind, solar, gas and interconnector flow