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

On 4 October 2023, Britain’s electricity grid averaged 31.43 GW of grid demand, with renewables averaging 65.0% of tracked domestic generation and carbon intensity averaging 82 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 31.43 GW

Average grid demand for this UK day.

Peak demand 38.42 GW

Highest 15-minute grid demand period.

Avg carbon 82 gCO₂/kWh

Average carbon intensity where available.

Renewables 65.0 %

Average renewable share of tracked generation.

Average grid demandDemand
31.43 GWFull-day average from available snapshots
↑ +0.74 GW vs yesterday
Peak demand18:30
38.42 GWHighest 15-minute grid demand period
↑ +2.24 GW vs yesterday
Lowest demand04:00
23.65 GWLowest 15-minute grid demand period
↑ +0.99 GW vs yesterday
Domestic generationSupply
29.76 GWTracked UK generation sources only
↑ +2.04 GW vs yesterday
Average carbonCO₂
82 gCO₂/kWhCarbon intensity average
↑ +12 g vs yesterday
Renewable shareClean
65.0 %Wind, solar, hydro and biomass
↓ −0.7 pts vs yesterday
Clean share+ Nuclear
79.5 %Renewables plus nuclear
↓ −1.9 pts vs yesterday
Net importsFlow
-0.41 GWAverage imports minus exports
↓ −2.47 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 4 October 2023, Britain’s electricity grid averaged 31.43 GW of grid demand, with renewables averaging 65.0% of tracked domestic generation and carbon intensity averaging 82 gCO₂/kWh.

The highest demand period was 38.42 GW at 18:30, while the lowest carbon intensity period was 36 gCO₂/kWh at 12:30.

Key records for 4 October 2023

Highest wind18.01 GW13:00
Highest solar5.75 GW13:00
Highest gas12.27 GW18:30
Lowest carbon36 gCO₂/kWh12:30
Highest imports4.03 GW12:00
Highest exports4.46 GW18:45

Daily chart

Demand, generation and carbon intensity

4 October 2023

Generation mix

Wind, solar, gas and interconnector flow