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

On 12 September 2024, Britain’s electricity grid averaged 31.90 GW of grid demand, with renewables averaging 53.4% of tracked domestic generation and carbon intensity averaging 111 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 31.90 GW

Average grid demand for this UK day.

Peak demand 37.30 GW

Highest 15-minute grid demand period.

Avg carbon 111 gCO₂/kWh

Average carbon intensity where available.

Renewables 53.4 %

Average renewable share of tracked generation.

Average grid demandDemand
31.90 GWFull-day average from available snapshots
↑ +0.14 GW vs yesterday
Peak demand18:00
37.30 GWHighest 15-minute grid demand period
↑ +0.11 GW vs yesterday
Lowest demand04:15
24.33 GWLowest 15-minute grid demand period
↓ −0.86 GW vs yesterday
Domestic generationSupply
27.44 GWTracked UK generation sources only
↓ −0.81 GW vs yesterday
Average carbonCO₂
111 gCO₂/kWhCarbon intensity average
↑ +45 g vs yesterday
Renewable shareClean
53.4 %Wind, solar, hydro and biomass
↓ −11.2 pts vs yesterday
Clean share+ Nuclear
71.7 %Renewables plus nuclear
↓ −10.5 pts vs yesterday
Net importsFlow
2.34 GWAverage imports minus exports
↑ +0.56 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 12 September 2024, Britain’s electricity grid averaged 31.90 GW of grid demand, with renewables averaging 53.4% of tracked domestic generation and carbon intensity averaging 111 gCO₂/kWh.

The highest demand period was 37.30 GW at 18:00, while the lowest carbon intensity period was 64 gCO₂/kWh at 01:30.

Key records for 12 September 2024

Highest wind10.69 GW01:00
Highest solar7.61 GW11:30
Highest gas13.50 GW19:00
Lowest carbon64 gCO₂/kWh01:30
Highest imports6.83 GW12:00
Highest exports4.12 GW18:30

Daily chart

Demand, generation and carbon intensity

12 September 2024

Generation mix

Wind, solar, gas and interconnector flow