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Daily UK grid report
UK Electricity Grid Daily Report — 28 December 2023

On 28 December 2023, Britain’s electricity grid averaged 32.72 GW of grid demand, with renewables averaging 71.8% of tracked domestic generation and carbon intensity averaging 41 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 32.72 GW

Average grid demand for this UK day.

Peak demand 38.35 GW

Highest 15-minute grid demand period.

Avg carbon 41 gCO₂/kWh

Average carbon intensity where available.

Renewables 71.8 %

Average renewable share of tracked generation.

Average grid demandDemand
32.72 GWFull-day average from available snapshots
↑ +0.62 GW vs yesterday
Peak demand17:00
38.35 GWHighest 15-minute grid demand period
↓ −0.54 GW vs yesterday
Lowest demand03:45
27.10 GWLowest 15-minute grid demand period
↑ +4.50 GW vs yesterday
Domestic generationSupply
30.27 GWTracked UK generation sources only
↑ +0.28 GW vs yesterday
Average carbonCO₂
41 gCO₂/kWhCarbon intensity average
↓ −7 g vs yesterday
Renewable shareClean
71.8 %Wind, solar, hydro and biomass
↑ +1.4 pts vs yesterday
Clean share+ Nuclear
89.2 %Renewables plus nuclear
↑ +0.8 pts vs yesterday
Net importsFlow
1.27 GWAverage imports minus exports
↑ +0.08 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 28 December 2023, Britain’s electricity grid averaged 32.72 GW of grid demand, with renewables averaging 71.8% of tracked domestic generation and carbon intensity averaging 41 gCO₂/kWh.

The highest demand period was 38.35 GW at 17:00, while the lowest carbon intensity period was 28 gCO₂/kWh at 13:30.

Key records for 28 December 2023

Highest wind21.08 GW12:00
Highest solar1.89 GW10:30
Highest gas3.75 GW05:30
Lowest carbon28 gCO₂/kWh13:30
Highest imports6.41 GW17:00
Highest exports6.07 GW05:00

Daily chart

Demand, generation and carbon intensity

28 December 2023

Generation mix

Wind, solar, gas and interconnector flow