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

On 21 July 2022, Britain’s electricity grid averaged 31.87 GW of grid demand, with renewables averaging 29.7% of tracked domestic generation and carbon intensity averaging 230 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 31.87 GW

Average grid demand for this UK day.

Peak demand 36.81 GW

Highest 15-minute grid demand period.

Avg carbon 230 gCO₂/kWh

Average carbon intensity where available.

Renewables 29.7 %

Average renewable share of tracked generation.

Average grid demandDemand
31.87 GWFull-day average from available snapshots
↓ −0.61 GW vs yesterday
Peak demand11:00
36.81 GWHighest 15-minute grid demand period
↓ −1.70 GW vs yesterday
Lowest demand05:00
25.76 GWLowest 15-minute grid demand period
↑ +0.62 GW vs yesterday
Domestic generationSupply
30.94 GWTracked UK generation sources only
↓ −0.66 GW vs yesterday
Average carbonCO₂
230 gCO₂/kWhCarbon intensity average
↑ +34 g vs yesterday
Renewable shareClean
29.7 %Wind, solar, hydro and biomass
↓ −8.1 pts vs yesterday
Clean share+ Nuclear
45.2 %Renewables plus nuclear
↓ −8.2 pts vs yesterday
Net importsFlow
-1.60 GWAverage imports minus exports
↓ −0.88 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 21 July 2022, Britain’s electricity grid averaged 31.87 GW of grid demand, with renewables averaging 29.7% of tracked domestic generation and carbon intensity averaging 230 gCO₂/kWh.

The highest demand period was 36.81 GW at 11:00, while the lowest carbon intensity period was 192 gCO₂/kWh at 02:30.

Key records for 21 July 2022

Highest wind8.08 GW02:30
Highest solar4.49 GW12:00
Highest gas18.07 GW16:30
Lowest carbon192 gCO₂/kWh02:30
Highest imports2.79 GW18:00
Highest exports5.00 GW04:00

Daily chart

Demand, generation and carbon intensity

21 July 2022

Generation mix

Wind, solar, gas and interconnector flow