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Daily UK grid report
UK Electricity Grid Daily Report — 23 December 2023

On 23 December 2023, Britain’s electricity grid averaged 31.44 GW of grid demand, with renewables averaging 69.1% of tracked domestic generation and carbon intensity averaging 47 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 31.44 GW

Average grid demand for this UK day.

Peak demand 37.15 GW

Highest 15-minute grid demand period.

Avg carbon 47 gCO₂/kWh

Average carbon intensity where available.

Renewables 69.1 %

Average renewable share of tracked generation.

Average grid demandDemand
31.44 GWFull-day average from available snapshots
↓ −1.29 GW vs yesterday
Peak demand17:00
37.15 GWHighest 15-minute grid demand period
↓ −1.76 GW vs yesterday
Lowest demand03:30
25.09 GWLowest 15-minute grid demand period
↓ −0.29 GW vs yesterday
Domestic generationSupply
29.46 GWTracked UK generation sources only
↓ −0.15 GW vs yesterday
Average carbonCO₂
47 gCO₂/kWhCarbon intensity average
↓ −5 g vs yesterday
Renewable shareClean
69.1 %Wind, solar, hydro and biomass
↑ +1.7 pts vs yesterday
Clean share+ Nuclear
87.0 %Renewables plus nuclear
↑ +2.2 pts vs yesterday
Net importsFlow
0.83 GWAverage imports minus exports
↓ −2.06 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 23 December 2023, Britain’s electricity grid averaged 31.44 GW of grid demand, with renewables averaging 69.1% of tracked domestic generation and carbon intensity averaging 47 gCO₂/kWh.

The highest demand period was 37.15 GW at 17:00, while the lowest carbon intensity period was 31 gCO₂/kWh at 11:00.

Key records for 23 December 2023

Highest wind20.44 GW14:00
Highest solar2.17 GW12:00
Highest gas4.26 GW17:00
Lowest carbon31 gCO₂/kWh11:00
Highest imports4.85 GW17:00
Highest exports4.33 GW22:45

Daily chart

Demand, generation and carbon intensity

23 December 2023

Generation mix

Wind, solar, gas and interconnector flow