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Daily UK grid report
UK Electricity Grid Daily Report — 22 September 2023

On 22 September 2023, Britain’s electricity grid averaged 28.86 GW of grid demand, with renewables averaging 41.9% of tracked domestic generation and carbon intensity averaging 130 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 28.86 GW

Average grid demand for this UK day.

Peak demand 34.24 GW

Highest 15-minute grid demand period.

Avg carbon 130 gCO₂/kWh

Average carbon intensity where available.

Renewables 41.9 %

Average renewable share of tracked generation.

Average grid demandDemand
28.86 GWFull-day average from available snapshots
↓ −1.50 GW vs yesterday
Peak demand12:30
34.24 GWHighest 15-minute grid demand period
↓ −1.75 GW vs yesterday
Lowest demand04:15
20.67 GWLowest 15-minute grid demand period
↓ −0.57 GW vs yesterday
Domestic generationSupply
24.15 GWTracked UK generation sources only
↓ −2.63 GW vs yesterday
Average carbonCO₂
130 gCO₂/kWhCarbon intensity average
↓ −11 g vs yesterday
Renewable shareClean
41.9 %Wind, solar, hydro and biomass
No change vs yesterday
Clean share+ Nuclear
64.4 %Renewables plus nuclear
↑ +2.5 pts vs yesterday
Net importsFlow
4.19 GWAverage imports minus exports
↑ +1.87 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 22 September 2023, Britain’s electricity grid averaged 28.86 GW of grid demand, with renewables averaging 41.9% of tracked domestic generation and carbon intensity averaging 130 gCO₂/kWh.

The highest demand period was 34.24 GW at 12:30, while the lowest carbon intensity period was 98 gCO₂/kWh at 14:30.

Key records for 22 September 2023

Highest wind9.77 GW20:00
Highest solar6.55 GW12:00
Highest gas10.45 GW19:30
Lowest carbon98 gCO₂/kWh14:30
Highest imports5.68 GW12:15
Highest exports1.41 GW23:15

Daily chart

Demand, generation and carbon intensity

22 September 2023

Generation mix

Wind, solar, gas and interconnector flow