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Daily UK grid report
UK Electricity Grid Daily Report — 25 September 2024

On 25 September 2024, Britain’s electricity grid averaged 29.36 GW of grid demand, with renewables averaging 38.0% of tracked domestic generation and carbon intensity averaging 159 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 29.36 GW

Average grid demand for this UK day.

Peak demand 37.62 GW

Highest 15-minute grid demand period.

Avg carbon 159 gCO₂/kWh

Average carbon intensity where available.

Renewables 38.0 %

Average renewable share of tracked generation.

Average grid demandDemand
29.36 GWFull-day average from available snapshots
↓ −1.30 GW vs yesterday
Peak demand18:30
37.62 GWHighest 15-minute grid demand period
↑ +1.17 GW vs yesterday
Lowest demand04:15
21.49 GWLowest 15-minute grid demand period
↓ −0.29 GW vs yesterday
Domestic generationSupply
24.89 GWTracked UK generation sources only
↓ −1.12 GW vs yesterday
Average carbonCO₂
159 gCO₂/kWhCarbon intensity average
↑ +14 g vs yesterday
Renewable shareClean
38.0 %Wind, solar, hydro and biomass
↓ −7.1 pts vs yesterday
Clean share+ Nuclear
58.0 %Renewables plus nuclear
↓ −5.4 pts vs yesterday
Net importsFlow
3.38 GWAverage imports minus exports
↓ −0.26 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 25 September 2024, Britain’s electricity grid averaged 29.36 GW of grid demand, with renewables averaging 38.0% of tracked domestic generation and carbon intensity averaging 159 gCO₂/kWh.

The highest demand period was 37.62 GW at 18:30, while the lowest carbon intensity period was 83 gCO₂/kWh at 23:30.

Key records for 25 September 2024

Highest wind11.00 GW22:00
Highest solar4.16 GW13:30
Highest gas18.01 GW17:30
Lowest carbon83 gCO₂/kWh23:30
Highest imports5.82 GW00:15
Highest exports3.07 GW17:45

Daily chart

Demand, generation and carbon intensity

25 September 2024

Generation mix

Wind, solar, gas and interconnector flow