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UK Electricity Grid Daily Report — 21 May 2022

On 21 May 2022, Britain’s electricity grid averaged 28.55 GW of grid demand, with renewables averaging 40.8% of tracked domestic generation and carbon intensity averaging 162 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 28.55 GW

Average grid demand for this UK day.

Peak demand 32.57 GW

Highest 15-minute grid demand period.

Avg carbon 162 gCO₂/kWh

Average carbon intensity where available.

Renewables 40.8 %

Average renewable share of tracked generation.

Average grid demandDemand
28.55 GWFull-day average from available snapshots
↓ −3.89 GW vs yesterday
Peak demand18:00
32.57 GWHighest 15-minute grid demand period
↓ −4.83 GW vs yesterday
Lowest demand05:00
22.48 GWLowest 15-minute grid demand period
↓ −1.96 GW vs yesterday
Domestic generationSupply
27.94 GWTracked UK generation sources only
↓ −4.52 GW vs yesterday
Average carbonCO₂
162 gCO₂/kWhCarbon intensity average
↓ −33 g vs yesterday
Renewable shareClean
40.8 %Wind, solar, hydro and biomass
↑ +7.5 pts vs yesterday
Clean share+ Nuclear
58.7 %Renewables plus nuclear
↑ +8.2 pts vs yesterday
Net importsFlow
-1.94 GWAverage imports minus exports
↑ +1.53 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 21 May 2022, Britain’s electricity grid averaged 28.55 GW of grid demand, with renewables averaging 40.8% of tracked domestic generation and carbon intensity averaging 162 gCO₂/kWh.

The highest demand period was 32.57 GW at 18:00, while the lowest carbon intensity period was 100 gCO₂/kWh at 02:30.

Key records for 21 May 2022

Highest wind13.13 GW02:00
Highest solar7.26 GW13:30
Highest gas16.94 GW22:00
Lowest carbon100 gCO₂/kWh02:30
Highest imports2.31 GW11:15
Highest exports4.48 GW22:00

Daily chart

Demand, generation and carbon intensity

21 May 2022

Generation mix

Wind, solar, gas and interconnector flow