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Daily UK grid report
UK Electricity Grid Daily Report — 4 January 2024

On 4 January 2024, Britain’s electricity grid averaged 35.43 GW of grid demand, with renewables averaging 37.0% of tracked domestic generation and carbon intensity averaging 181 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 35.43 GW

Average grid demand for this UK day.

Peak demand 43.78 GW

Highest 15-minute grid demand period.

Avg carbon 181 gCO₂/kWh

Average carbon intensity where available.

Renewables 37.0 %

Average renewable share of tracked generation.

Average grid demandDemand
35.43 GWFull-day average from available snapshots
↑ +1.02 GW vs yesterday
Peak demand18:00
43.78 GWHighest 15-minute grid demand period
↑ +1.23 GW vs yesterday
Lowest demand04:15
24.92 GWLowest 15-minute grid demand period
↓ −0.23 GW vs yesterday
Domestic generationSupply
31.04 GWTracked UK generation sources only
↑ +2.55 GW vs yesterday
Average carbonCO₂
181 gCO₂/kWhCarbon intensity average
↑ +51 g vs yesterday
Renewable shareClean
37.0 %Wind, solar, hydro and biomass
↓ −10.1 pts vs yesterday
Clean share+ Nuclear
52.6 %Renewables plus nuclear
↓ −11.3 pts vs yesterday
Net importsFlow
3.84 GWAverage imports minus exports
↓ −1.67 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 4 January 2024, Britain’s electricity grid averaged 35.43 GW of grid demand, with renewables averaging 37.0% of tracked domestic generation and carbon intensity averaging 181 gCO₂/kWh.

The highest demand period was 43.78 GW at 18:00, while the lowest carbon intensity period was 91 gCO₂/kWh at 03:00.

Key records for 4 January 2024

Highest wind10.10 GW02:00
Highest solar2.17 GW10:30
Highest gas22.07 GW18:00
Lowest carbon91 gCO₂/kWh03:00
Highest imports6.04 GW13:00
Highest exports2.11 GW18:00

Daily chart

Demand, generation and carbon intensity

4 January 2024

Generation mix

Wind, solar, gas and interconnector flow