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Daily UK grid report
UK Electricity Grid Daily Report — 18 May 2023

On 18 May 2023, Britain’s electricity grid averaged 29.31 GW of grid demand, with renewables averaging 31.7% of tracked domestic generation and carbon intensity averaging 174 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 29.31 GW

Average grid demand for this UK day.

Peak demand 34.55 GW

Highest 15-minute grid demand period.

Avg carbon 174 gCO₂/kWh

Average carbon intensity where available.

Renewables 31.7 %

Average renewable share of tracked generation.

Average grid demandDemand
29.31 GWFull-day average from available snapshots
↓ −0.45 GW vs yesterday
Peak demand11:30
34.55 GWHighest 15-minute grid demand period
↓ −0.76 GW vs yesterday
Lowest demand04:15
21.83 GWLowest 15-minute grid demand period
↓ −0.36 GW vs yesterday
Domestic generationSupply
23.44 GWTracked UK generation sources only
↓ −0.70 GW vs yesterday
Average carbonCO₂
174 gCO₂/kWhCarbon intensity average
↓ −19 g vs yesterday
Renewable shareClean
31.7 %Wind, solar, hydro and biomass
↑ +4.9 pts vs yesterday
Clean share+ Nuclear
49.0 %Renewables plus nuclear
↑ +6.0 pts vs yesterday
Net importsFlow
4.97 GWAverage imports minus exports
↑ +0.04 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 18 May 2023, Britain’s electricity grid averaged 29.31 GW of grid demand, with renewables averaging 31.7% of tracked domestic generation and carbon intensity averaging 174 gCO₂/kWh.

The highest demand period was 34.55 GW at 11:30, while the lowest carbon intensity period was 125 gCO₂/kWh at 11:30.

Key records for 18 May 2023

Highest wind4.68 GW00:00
Highest solar8.36 GW11:30
Highest gas15.05 GW19:00
Lowest carbon125 gCO₂/kWh11:30
Highest imports7.35 GW16:00
Highest exports2.26 GW05:00

Daily chart

Demand, generation and carbon intensity

18 May 2023

Generation mix

Wind, solar, gas and interconnector flow