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Daily UK grid report
UK Electricity Grid Daily Report — 20 September 2022

On 20 September 2022, Britain’s electricity grid averaged 29.70 GW of grid demand, with renewables averaging 19.4% of tracked domestic generation and carbon intensity averaging 291 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 29.70 GW

Average grid demand for this UK day.

Peak demand 34.49 GW

Highest 15-minute grid demand period.

Avg carbon 291 gCO₂/kWh

Average carbon intensity where available.

Renewables 19.4 %

Average renewable share of tracked generation.

Average grid demandDemand
29.70 GWFull-day average from available snapshots
↑ +2.29 GW vs yesterday
Peak demand13:15
34.49 GWHighest 15-minute grid demand period
↑ +2.59 GW vs yesterday
Lowest demand03:00
22.52 GWLowest 15-minute grid demand period
↑ +2.13 GW vs yesterday
Domestic generationSupply
29.64 GWTracked UK generation sources only
↑ +3.00 GW vs yesterday
Average carbonCO₂
291 gCO₂/kWhCarbon intensity average
↑ +41 g vs yesterday
Renewable shareClean
19.4 %Wind, solar, hydro and biomass
↓ −6.1 pts vs yesterday
Clean share+ Nuclear
32.9 %Renewables plus nuclear
↓ −9.3 pts vs yesterday
Net importsFlow
-1.59 GWAverage imports minus exports
↑ +0.11 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 20 September 2022, Britain’s electricity grid averaged 29.70 GW of grid demand, with renewables averaging 19.4% of tracked domestic generation and carbon intensity averaging 291 gCO₂/kWh.

The highest demand period was 34.49 GW at 13:15, while the lowest carbon intensity period was 262 gCO₂/kWh at 12:00.

Key records for 20 September 2022

Highest wind2.53 GW03:00
Highest solar5.38 GW12:00
Highest gas19.84 GW09:00
Lowest carbon262 gCO₂/kWh12:00
Highest imports1.19 GW19:00
Highest exports4.13 GW05:00

Daily chart

Demand, generation and carbon intensity

20 September 2022

Generation mix

Wind, solar, gas and interconnector flow