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Daily UK grid report
UK Electricity Grid Daily Report — 31 May 2023

On 31 May 2023, Britain’s electricity grid averaged 28.68 GW of grid demand, with renewables averaging 36.1% of tracked domestic generation and carbon intensity averaging 142 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 28.68 GW

Average grid demand for this UK day.

Peak demand 33.81 GW

Highest 15-minute grid demand period.

Avg carbon 142 gCO₂/kWh

Average carbon intensity where available.

Renewables 36.1 %

Average renewable share of tracked generation.

Average grid demandDemand
28.68 GWFull-day average from available snapshots
↑ +0.41 GW vs yesterday
Peak demand14:00
33.81 GWHighest 15-minute grid demand period
↓ −0.21 GW vs yesterday
Lowest demand04:30
21.69 GWLowest 15-minute grid demand period
↑ +1.78 GW vs yesterday
Domestic generationSupply
23.41 GWTracked UK generation sources only
↑ +0.87 GW vs yesterday
Average carbonCO₂
142 gCO₂/kWhCarbon intensity average
↑ +25 g vs yesterday
Renewable shareClean
36.1 %Wind, solar, hydro and biomass
↓ −5.0 pts vs yesterday
Clean share+ Nuclear
58.9 %Renewables plus nuclear
↓ −6.5 pts vs yesterday
Net importsFlow
4.11 GWAverage imports minus exports
↓ −0.56 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 31 May 2023, Britain’s electricity grid averaged 28.68 GW of grid demand, with renewables averaging 36.1% of tracked domestic generation and carbon intensity averaging 142 gCO₂/kWh.

The highest demand period was 33.81 GW at 14:00, while the lowest carbon intensity period was 114 gCO₂/kWh at 14:30.

Key records for 31 May 2023

Highest wind7.31 GW19:30
Highest solar6.73 GW14:00
Highest gas11.61 GW10:00
Lowest carbon114 gCO₂/kWh14:30
Highest imports7.29 GW13:00
Highest exports2.67 GW05:00

Daily chart

Demand, generation and carbon intensity

31 May 2023

Generation mix

Wind, solar, gas and interconnector flow