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Daily UK grid report
UK Electricity Grid Daily Report — 4 September 2023

On 4 September 2023, Britain’s electricity grid averaged 30.01 GW of grid demand, with renewables averaging 34.7% of tracked domestic generation and carbon intensity averaging 165 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 30.01 GW

Average grid demand for this UK day.

Peak demand 35.85 GW

Highest 15-minute grid demand period.

Avg carbon 165 gCO₂/kWh

Average carbon intensity where available.

Renewables 34.7 %

Average renewable share of tracked generation.

Average grid demandDemand
30.01 GWFull-day average from available snapshots
↑ +4.36 GW vs yesterday
Peak demand17:00
35.85 GWHighest 15-minute grid demand period
↑ +4.27 GW vs yesterday
Lowest demand04:15
21.08 GWLowest 15-minute grid demand period
↑ +1.89 GW vs yesterday
Domestic generationSupply
25.60 GWTracked UK generation sources only
↑ +4.48 GW vs yesterday
Average carbonCO₂
165 gCO₂/kWhCarbon intensity average
↑ +45 g vs yesterday
Renewable shareClean
34.7 %Wind, solar, hydro and biomass
↓ −8.4 pts vs yesterday
Clean share+ Nuclear
56.1 %Renewables plus nuclear
↓ −12.6 pts vs yesterday
Net importsFlow
2.91 GWAverage imports minus exports
↓ −0.73 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 4 September 2023, Britain’s electricity grid averaged 30.01 GW of grid demand, with renewables averaging 34.7% of tracked domestic generation and carbon intensity averaging 165 gCO₂/kWh.

The highest demand period was 35.85 GW at 17:00, while the lowest carbon intensity period was 116 gCO₂/kWh at 13:00.

Key records for 4 September 2023

Highest wind5.06 GW15:00
Highest solar10.07 GW12:30
Highest gas16.26 GW20:00
Lowest carbon116 gCO₂/kWh13:00
Highest imports5.94 GW12:00
Highest exports2.75 GW05:00

Daily chart

Demand, generation and carbon intensity

4 September 2023

Generation mix

Wind, solar, gas and interconnector flow