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Daily UK grid report
UK Electricity Grid Daily Report — 27 May 2023

On 27 May 2023, Britain’s electricity grid averaged 25.70 GW of grid demand, with renewables averaging 45.1% of tracked domestic generation and carbon intensity averaging 99 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 25.70 GW

Average grid demand for this UK day.

Peak demand 31.08 GW

Highest 15-minute grid demand period.

Avg carbon 99 gCO₂/kWh

Average carbon intensity where available.

Renewables 45.1 %

Average renewable share of tracked generation.

Average grid demandDemand
25.70 GWFull-day average from available snapshots
↓ −2.45 GW vs yesterday
Peak demand17:00
31.08 GWHighest 15-minute grid demand period
↓ −2.75 GW vs yesterday
Lowest demand05:15
19.33 GWLowest 15-minute grid demand period
↓ −1.34 GW vs yesterday
Domestic generationSupply
20.83 GWTracked UK generation sources only
↓ −1.94 GW vs yesterday
Average carbonCO₂
99 gCO₂/kWhCarbon intensity average
↓ −45 g vs yesterday
Renewable shareClean
45.1 %Wind, solar, hydro and biomass
↑ +12.1 pts vs yesterday
Clean share+ Nuclear
71.4 %Renewables plus nuclear
↑ +14.7 pts vs yesterday
Net importsFlow
3.88 GWAverage imports minus exports
↓ −0.54 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 27 May 2023, Britain’s electricity grid averaged 25.70 GW of grid demand, with renewables averaging 45.1% of tracked domestic generation and carbon intensity averaging 99 gCO₂/kWh.

The highest demand period was 31.08 GW at 17:00, while the lowest carbon intensity period was 57 gCO₂/kWh at 10:30.

Key records for 27 May 2023

Highest wind6.54 GW18:00
Highest solar10.80 GW12:30
Highest gas9.70 GW21:00
Lowest carbon57 gCO₂/kWh10:30
Highest imports7.13 GW09:00
Highest exports1.69 GW05:00

Daily chart

Demand, generation and carbon intensity

27 May 2023

Generation mix

Wind, solar, gas and interconnector flow