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Daily UK grid report
UK Electricity Grid Daily Report — 14 September 2023

On 14 September 2023, Britain’s electricity grid averaged 30.46 GW of grid demand, with renewables averaging 36.1% of tracked domestic generation and carbon intensity averaging 182 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 30.46 GW

Average grid demand for this UK day.

Peak demand 35.46 GW

Highest 15-minute grid demand period.

Avg carbon 182 gCO₂/kWh

Average carbon intensity where available.

Renewables 36.1 %

Average renewable share of tracked generation.

Average grid demandDemand
30.46 GWFull-day average from available snapshots
↑ +0.14 GW vs yesterday
Peak demand11:00
35.46 GWHighest 15-minute grid demand period
↓ −0.34 GW vs yesterday
Lowest demand04:30
23.12 GWLowest 15-minute grid demand period
↑ +0.23 GW vs yesterday
Domestic generationSupply
28.33 GWTracked UK generation sources only
↑ +0.19 GW vs yesterday
Average carbonCO₂
182 gCO₂/kWhCarbon intensity average
↑ +2 g vs yesterday
Renewable shareClean
36.1 %Wind, solar, hydro and biomass
↓ −0.1 pts vs yesterday
Clean share+ Nuclear
54.8 %Renewables plus nuclear
↓ −0.2 pts vs yesterday
Net importsFlow
0.19 GWAverage imports minus exports
No change vs yesterday

Daily insight

What happened on the UK electricity grid?

On 14 September 2023, Britain’s electricity grid averaged 30.46 GW of grid demand, with renewables averaging 36.1% of tracked domestic generation and carbon intensity averaging 182 gCO₂/kWh.

The highest demand period was 35.46 GW at 11:00, while the lowest carbon intensity period was 94 gCO₂/kWh at 04:00.

Key records for 14 September 2023

Highest wind10.98 GW03:30
Highest solar5.94 GW13:00
Highest gas16.77 GW19:00
Lowest carbon94 gCO₂/kWh04:00
Highest imports4.21 GW19:00
Highest exports4.17 GW01:45

Daily chart

Demand, generation and carbon intensity

14 September 2023

Generation mix

Wind, solar, gas and interconnector flow