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UK Electricity Grid Daily Report — 24 September 2026

On 24 September 2026, Britain’s electricity grid averaged 31.02 GW of grid demand, with renewables averaging 52.3% of tracked domestic generation and carbon intensity averaging 136 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 31.02 GW

Average grid demand for this UK day.

Peak demand 36.32 GW

Highest 15-minute grid demand period.

Avg carbon 136 gCO₂/kWh

Average carbon intensity where available.

Renewables 52.3 %

Average renewable share of tracked generation.

Average grid demandDemand
31.02 GWFull-day average from available snapshots
↓ −0.30 GW vs yesterday
Peak demand20:00
36.32 GWHighest 15-minute grid demand period
↓ −0.88 GW vs yesterday
Lowest demand05:15
22.72 GWLowest 15-minute grid demand period
↓ −1.57 GW vs yesterday
Domestic generationSupply
26.72 GWTracked UK generation sources only
↓ −0.83 GW vs yesterday
Average carbonCO₂
136 gCO₂/kWhCarbon intensity average
↑ +6 g vs yesterday
Renewable shareClean
52.3 %Wind, solar, hydro and biomass
↓ −2.6 pts vs yesterday
Clean share+ Nuclear
68.1 %Renewables plus nuclear
↓ −1.1 pts vs yesterday
Net importsFlow
3.15 GWAverage imports minus exports
↑ +1.46 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 24 September 2026, Britain’s electricity grid averaged 31.02 GW of grid demand, with renewables averaging 52.3% of tracked domestic generation and carbon intensity averaging 136 gCO₂/kWh.

The highest demand period was 36.32 GW at 20:00, while the lowest carbon intensity period was 80 gCO₂/kWh at 12:30.

Key records for 24 September 2026

Highest wind14.05 GW23:00
Highest solar10.88 GW12:00
Highest gas13.33 GW19:00
Lowest carbon80 gCO₂/kWh12:30
Highest imports6.86 GW11:15
Highest exports5.54 GW23:00

Daily chart

Demand, generation and carbon intensity

24 September 2026

Generation mix

Wind, solar, gas and interconnector flow