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Daily UK grid report
UK Electricity Grid Daily Report — 22 December 2023

On 22 December 2023, Britain’s electricity grid averaged 32.73 GW of grid demand, with renewables averaging 67.4% of tracked domestic generation and carbon intensity averaging 52 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 32.73 GW

Average grid demand for this UK day.

Peak demand 38.91 GW

Highest 15-minute grid demand period.

Avg carbon 52 gCO₂/kWh

Average carbon intensity where available.

Renewables 67.4 %

Average renewable share of tracked generation.

Average grid demandDemand
32.73 GWFull-day average from available snapshots
↓ −3.00 GW vs yesterday
Peak demand17:45
38.91 GWHighest 15-minute grid demand period
↓ −4.12 GW vs yesterday
Lowest demand04:00
25.38 GWLowest 15-minute grid demand period
↓ −2.98 GW vs yesterday
Domestic generationSupply
29.61 GWTracked UK generation sources only
↓ −3.14 GW vs yesterday
Average carbonCO₂
52 gCO₂/kWhCarbon intensity average
↑ +3 g vs yesterday
Renewable shareClean
67.4 %Wind, solar, hydro and biomass
↓ −5.5 pts vs yesterday
Clean share+ Nuclear
84.8 %Renewables plus nuclear
↓ −3.2 pts vs yesterday
Net importsFlow
2.90 GWAverage imports minus exports
↑ +1.16 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 22 December 2023, Britain’s electricity grid averaged 32.73 GW of grid demand, with renewables averaging 67.4% of tracked domestic generation and carbon intensity averaging 52 gCO₂/kWh.

The highest demand period was 38.91 GW at 17:45, while the lowest carbon intensity period was 37 gCO₂/kWh at 06:00.

Key records for 22 December 2023

Highest wind20.52 GW08:30
Highest solar1.37 GW12:00
Highest gas5.70 GW17:00
Lowest carbon37 gCO₂/kWh06:00
Highest imports5.92 GW18:00
Highest exports2.35 GW05:00

Daily chart

Demand, generation and carbon intensity

22 December 2023

Generation mix

Wind, solar, gas and interconnector flow