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Daily UK grid report
UK Electricity Grid Daily Report — 18 December 2022

On 18 December 2022, Britain’s electricity grid averaged 35.42 GW of grid demand, with renewables averaging 58.1% of tracked domestic generation and carbon intensity averaging 116 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 35.42 GW

Average grid demand for this UK day.

Peak demand 44.66 GW

Highest 15-minute grid demand period.

Avg carbon 116 gCO₂/kWh

Average carbon intensity where available.

Renewables 58.1 %

Average renewable share of tracked generation.

Average grid demandDemand
35.42 GWFull-day average from available snapshots
↓ −1.48 GW vs yesterday
Peak demand17:00
44.66 GWHighest 15-minute grid demand period
↑ +1.56 GW vs yesterday
Lowest demand05:15
26.32 GWLowest 15-minute grid demand period
↓ −3.10 GW vs yesterday
Domestic generationSupply
31.08 GWTracked UK generation sources only
↓ −3.63 GW vs yesterday
Average carbonCO₂
116 gCO₂/kWhCarbon intensity average
↓ −74 g vs yesterday
Renewable shareClean
58.1 %Wind, solar, hydro and biomass
↑ +16.8 pts vs yesterday
Clean share+ Nuclear
77.6 %Renewables plus nuclear
↑ +19.5 pts vs yesterday
Net importsFlow
4.70 GWAverage imports minus exports
↑ +3.32 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 18 December 2022, Britain’s electricity grid averaged 35.42 GW of grid demand, with renewables averaging 58.1% of tracked domestic generation and carbon intensity averaging 116 gCO₂/kWh.

The highest demand period was 44.66 GW at 17:00, while the lowest carbon intensity period was 63 gCO₂/kWh at 23:30.

Key records for 18 December 2022

Highest wind20.09 GW15:00
Highest solar0.37 GW11:30
Highest gas8.04 GW17:00
Lowest carbon63 gCO₂/kWh23:30
Highest imports6.68 GW02:00
Highest exports1.85 GW23:00

Daily chart

Demand, generation and carbon intensity

18 December 2022

Generation mix

Wind, solar, gas and interconnector flow