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Daily UK grid report
UK Electricity Grid Daily Report — 15 December 2024

On 15 December 2024, Britain’s electricity grid averaged 34.42 GW of grid demand, with renewables averaging 72.3% of tracked domestic generation and carbon intensity averaging 60 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 34.42 GW

Average grid demand for this UK day.

Peak demand 42.25 GW

Highest 15-minute grid demand period.

Avg carbon 60 gCO₂/kWh

Average carbon intensity where available.

Renewables 72.3 %

Average renewable share of tracked generation.

Average grid demandDemand
34.42 GWFull-day average from available snapshots
↑ +0.21 GW vs yesterday
Peak demand17:00
42.25 GWHighest 15-minute grid demand period
↑ +1.18 GW vs yesterday
Lowest demand01:45
27.70 GWLowest 15-minute grid demand period
↑ +0.91 GW vs yesterday
Domestic generationSupply
31.25 GWTracked UK generation sources only
↑ +0.04 GW vs yesterday
Average carbonCO₂
60 gCO₂/kWhCarbon intensity average
↓ −82 g vs yesterday
Renewable shareClean
72.3 %Wind, solar, hydro and biomass
↑ +21.3 pts vs yesterday
Clean share+ Nuclear
85.3 %Renewables plus nuclear
↑ +21.6 pts vs yesterday
Net importsFlow
2.26 GWAverage imports minus exports
↓ −0.34 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 15 December 2024, Britain’s electricity grid averaged 34.42 GW of grid demand, with renewables averaging 72.3% of tracked domestic generation and carbon intensity averaging 60 gCO₂/kWh.

The highest demand period was 42.25 GW at 17:00, while the lowest carbon intensity period was 50 gCO₂/kWh at 03:30.

Key records for 15 December 2024

Highest wind22.24 GW18:30
Highest solar1.62 GW11:30
Highest gas6.38 GW17:30
Lowest carbon50 gCO₂/kWh03:30
Highest imports6.07 GW13:45
Highest exports3.96 GW05:00

Daily chart

Demand, generation and carbon intensity

15 December 2024

Generation mix

Wind, solar, gas and interconnector flow