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Daily UK grid report
UK Electricity Grid Daily Report — 21 August 2022

On 21 August 2022, Britain’s electricity grid averaged 26.39 GW of grid demand, with renewables averaging 35.4% of tracked domestic generation and carbon intensity averaging 180 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 26.39 GW

Average grid demand for this UK day.

Peak demand 30.18 GW

Highest 15-minute grid demand period.

Avg carbon 180 gCO₂/kWh

Average carbon intensity where available.

Renewables 35.4 %

Average renewable share of tracked generation.

Average grid demandDemand
26.39 GWFull-day average from available snapshots
↓ −3.00 GW vs yesterday
Peak demand12:30
30.18 GWHighest 15-minute grid demand period
↓ −3.14 GW vs yesterday
Lowest demand23:30
22.25 GWLowest 15-minute grid demand period
↓ −2.24 GW vs yesterday
Domestic generationSupply
24.42 GWTracked UK generation sources only
↓ −4.86 GW vs yesterday
Average carbonCO₂
180 gCO₂/kWhCarbon intensity average
↑ +28 g vs yesterday
Renewable shareClean
35.4 %Wind, solar, hydro and biomass
↓ −12.5 pts vs yesterday
Clean share+ Nuclear
54.1 %Renewables plus nuclear
↓ −9.6 pts vs yesterday
Net importsFlow
0.63 GWAverage imports minus exports
↑ +4.56 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 21 August 2022, Britain’s electricity grid averaged 26.39 GW of grid demand, with renewables averaging 35.4% of tracked domestic generation and carbon intensity averaging 180 gCO₂/kWh.

The highest demand period was 30.18 GW at 12:30, while the lowest carbon intensity period was 134 gCO₂/kWh at 13:00.

Key records for 21 August 2022

Highest wind10.64 GW00:00
Highest solar6.50 GW13:00
Highest gas14.19 GW18:30
Lowest carbon134 gCO₂/kWh13:00
Highest imports5.62 GW14:00
Highest exports5.43 GW01:00

Daily chart

Demand, generation and carbon intensity

21 August 2022

Generation mix

Wind, solar, gas and interconnector flow