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Daily UK grid report
UK Electricity Grid Daily Report — 27 December 2023

On 27 December 2023, Britain’s electricity grid averaged 32.11 GW of grid demand, with renewables averaging 70.5% of tracked domestic generation and carbon intensity averaging 48 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 32.11 GW

Average grid demand for this UK day.

Peak demand 38.89 GW

Highest 15-minute grid demand period.

Avg carbon 48 gCO₂/kWh

Average carbon intensity where available.

Renewables 70.5 %

Average renewable share of tracked generation.

Average grid demandDemand
32.11 GWFull-day average from available snapshots
↑ +3.87 GW vs yesterday
Peak demand17:15
38.89 GWHighest 15-minute grid demand period
↑ +6.55 GW vs yesterday
Lowest demand02:15
22.60 GWLowest 15-minute grid demand period
↓ −0.96 GW vs yesterday
Domestic generationSupply
29.99 GWTracked UK generation sources only
↑ +5.14 GW vs yesterday
Average carbonCO₂
48 gCO₂/kWhCarbon intensity average
↓ −56 g vs yesterday
Renewable shareClean
70.5 %Wind, solar, hydro and biomass
↑ +20.5 pts vs yesterday
Clean share+ Nuclear
88.4 %Renewables plus nuclear
↑ +17.0 pts vs yesterday
Net importsFlow
1.19 GWAverage imports minus exports
↓ −1.25 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 27 December 2023, Britain’s electricity grid averaged 32.11 GW of grid demand, with renewables averaging 70.5% of tracked domestic generation and carbon intensity averaging 48 gCO₂/kWh.

The highest demand period was 38.89 GW at 17:15, while the lowest carbon intensity period was 30 gCO₂/kWh at 20:30.

Key records for 27 December 2023

Highest wind21.43 GW11:00
Highest solar0.25 GW11:30
Highest gas4.08 GW06:30
Lowest carbon30 gCO₂/kWh20:30
Highest imports6.25 GW00:00
Highest exports5.84 GW05:15

Daily chart

Demand, generation and carbon intensity

27 December 2023

Generation mix

Wind, solar, gas and interconnector flow