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Daily UK grid report
UK Electricity Grid Daily Report — 12 December 2024

On 12 December 2024, Britain’s electricity grid averaged 38.35 GW of grid demand, with renewables averaging 14.8% of tracked domestic generation and carbon intensity averaging 280 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 38.35 GW

Average grid demand for this UK day.

Peak demand 43.75 GW

Highest 15-minute grid demand period.

Avg carbon 280 gCO₂/kWh

Average carbon intensity where available.

Renewables 14.8 %

Average renewable share of tracked generation.

Average grid demandDemand
38.35 GWFull-day average from available snapshots
↓ −0.90 GW vs yesterday
Peak demand18:15
43.75 GWHighest 15-minute grid demand period
↓ −1.68 GW vs yesterday
Lowest demand04:15
31.20 GWLowest 15-minute grid demand period
↓ −0.44 GW vs yesterday
Domestic generationSupply
36.09 GWTracked UK generation sources only
↓ −0.13 GW vs yesterday
Average carbonCO₂
280 gCO₂/kWhCarbon intensity average
↑ +14 g vs yesterday
Renewable shareClean
14.8 %Wind, solar, hydro and biomass
↓ −3.6 pts vs yesterday
Clean share+ Nuclear
25.5 %Renewables plus nuclear
↓ −3.1 pts vs yesterday
Net importsFlow
0.47 GWAverage imports minus exports
↓ −0.86 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 12 December 2024, Britain’s electricity grid averaged 38.35 GW of grid demand, with renewables averaging 14.8% of tracked domestic generation and carbon intensity averaging 280 gCO₂/kWh.

The highest demand period was 43.75 GW at 18:15, while the lowest carbon intensity period was 262 gCO₂/kWh at 18:30.

Key records for 12 December 2024

Highest wind2.78 GW22:30
Highest solar0.94 GW10:30
Highest gas27.87 GW08:00
Lowest carbon262 gCO₂/kWh18:30
Highest imports4.88 GW19:00
Highest exports5.26 GW05:00

Daily chart

Demand, generation and carbon intensity

12 December 2024

Generation mix

Wind, solar, gas and interconnector flow