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Daily UK grid report
UK Electricity Grid Daily Report — 29 December 2024

On 29 December 2024, Britain’s electricity grid averaged 31.96 GW of grid demand, with renewables averaging 58.7% of tracked domestic generation and carbon intensity averaging 92 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 31.96 GW

Average grid demand for this UK day.

Peak demand 39.44 GW

Highest 15-minute grid demand period.

Avg carbon 92 gCO₂/kWh

Average carbon intensity where available.

Renewables 58.7 %

Average renewable share of tracked generation.

Average grid demandDemand
31.96 GWFull-day average from available snapshots
↑ +0.21 GW vs yesterday
Peak demand17:30
39.44 GWHighest 15-minute grid demand period
↑ +0.45 GW vs yesterday
Lowest demand02:45
24.76 GWLowest 15-minute grid demand period
↑ +1.31 GW vs yesterday
Domestic generationSupply
29.23 GWTracked UK generation sources only
↑ +0.60 GW vs yesterday
Average carbonCO₂
92 gCO₂/kWhCarbon intensity average
↓ −85 g vs yesterday
Renewable shareClean
58.7 %Wind, solar, hydro and biomass
↑ +23.3 pts vs yesterday
Clean share+ Nuclear
76.1 %Renewables plus nuclear
↑ +22.5 pts vs yesterday
Net importsFlow
1.80 GWAverage imports minus exports
↓ −0.22 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 29 December 2024, Britain’s electricity grid averaged 31.96 GW of grid demand, with renewables averaging 58.7% of tracked domestic generation and carbon intensity averaging 92 gCO₂/kWh.

The highest demand period was 39.44 GW at 17:30, while the lowest carbon intensity period was 48 gCO₂/kWh at 22:30.

Key records for 29 December 2024

Highest wind17.83 GW18:00
Highest solar2.07 GW11:30
Highest gas8.14 GW17:00
Lowest carbon48 gCO₂/kWh22:30
Highest imports4.12 GW19:00
Highest exports3.83 GW07:45

Daily chart

Demand, generation and carbon intensity

29 December 2024

Generation mix

Wind, solar, gas and interconnector flow