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Daily UK grid report
UK Electricity Grid Daily Report — 31 December 2022

On 31 December 2022, Britain’s electricity grid averaged 29.19 GW of grid demand, with renewables averaging 49.4% of tracked domestic generation and carbon intensity averaging 107 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 29.19 GW

Average grid demand for this UK day.

Peak demand 36.05 GW

Highest 15-minute grid demand period.

Avg carbon 107 gCO₂/kWh

Average carbon intensity where available.

Renewables 49.4 %

Average renewable share of tracked generation.

Average grid demandDemand
29.19 GWFull-day average from available snapshots
↓ −2.85 GW vs yesterday
Peak demand17:00
36.05 GWHighest 15-minute grid demand period
↓ −2.59 GW vs yesterday
Lowest demand03:45
23.05 GWLowest 15-minute grid demand period
↓ −3.06 GW vs yesterday
Domestic generationSupply
24.56 GWTracked UK generation sources only
↓ −5.07 GW vs yesterday
Average carbonCO₂
107 gCO₂/kWhCarbon intensity average
↑ +54 g vs yesterday
Renewable shareClean
49.4 %Wind, solar, hydro and biomass
↓ −20.0 pts vs yesterday
Clean share+ Nuclear
73.0 %Renewables plus nuclear
↓ −15.8 pts vs yesterday
Net importsFlow
4.08 GWAverage imports minus exports
↑ +2.78 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 31 December 2022, Britain’s electricity grid averaged 29.19 GW of grid demand, with renewables averaging 49.4% of tracked domestic generation and carbon intensity averaging 107 gCO₂/kWh.

The highest demand period was 36.05 GW at 17:00, while the lowest carbon intensity period was 62 gCO₂/kWh at 23:30.

Key records for 31 December 2022

Highest wind14.32 GW23:30
Highest solar0.34 GW11:30
Highest gas9.53 GW14:00
Lowest carbon62 gCO₂/kWh23:30
Highest imports6.10 GW16:15
Highest exports2.05 GW05:00

Daily chart

Demand, generation and carbon intensity

31 December 2022

Generation mix

Wind, solar, gas and interconnector flow