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Daily UK grid report
UK Electricity Grid Daily Report — 26 September 2023

On 26 September 2023, Britain’s electricity grid averaged 32.13 GW of grid demand, with renewables averaging 50.9% of tracked domestic generation and carbon intensity averaging 142 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 32.13 GW

Average grid demand for this UK day.

Peak demand 38.21 GW

Highest 15-minute grid demand period.

Avg carbon 142 gCO₂/kWh

Average carbon intensity where available.

Renewables 50.9 %

Average renewable share of tracked generation.

Average grid demandDemand
32.13 GWFull-day average from available snapshots
↑ +0.83 GW vs yesterday
Peak demand12:00
38.21 GWHighest 15-minute grid demand period
↑ +2.30 GW vs yesterday
Lowest demand03:45
24.49 GWLowest 15-minute grid demand period
↓ −0.67 GW vs yesterday
Domestic generationSupply
30.33 GWTracked UK generation sources only
↑ +0.69 GW vs yesterday
Average carbonCO₂
142 gCO₂/kWhCarbon intensity average
↑ +33 g vs yesterday
Renewable shareClean
50.9 %Wind, solar, hydro and biomass
↓ −6.4 pts vs yesterday
Clean share+ Nuclear
68.1 %Renewables plus nuclear
↓ −6.7 pts vs yesterday
Net importsFlow
-0.86 GWAverage imports minus exports
↓ −0.11 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 26 September 2023, Britain’s electricity grid averaged 32.13 GW of grid demand, with renewables averaging 50.9% of tracked domestic generation and carbon intensity averaging 142 gCO₂/kWh.

The highest demand period was 38.21 GW at 12:00, while the lowest carbon intensity period was 71 gCO₂/kWh at 12:30.

Key records for 26 September 2023

Highest wind17.19 GW12:00
Highest solar7.10 GW13:00
Highest gas13.25 GW18:30
Lowest carbon71 gCO₂/kWh12:30
Highest imports2.52 GW09:15
Highest exports4.34 GW18:30

Daily chart

Demand, generation and carbon intensity

26 September 2023

Generation mix

Wind, solar, gas and interconnector flow