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Daily UK grid report
UK Electricity Grid Daily Report — 12 May 2023

On 12 May 2023, Britain’s electricity grid averaged 29.20 GW of grid demand, with renewables averaging 43.6% of tracked domestic generation and carbon intensity averaging 158 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 29.20 GW

Average grid demand for this UK day.

Peak demand 35.12 GW

Highest 15-minute grid demand period.

Avg carbon 158 gCO₂/kWh

Average carbon intensity where available.

Renewables 43.6 %

Average renewable share of tracked generation.

Average grid demandDemand
29.20 GWFull-day average from available snapshots
↓ −0.07 GW vs yesterday
Peak demand11:00
35.12 GWHighest 15-minute grid demand period
↑ +0.03 GW vs yesterday
Lowest demand03:15
20.36 GWLowest 15-minute grid demand period
↓ −1.39 GW vs yesterday
Domestic generationSupply
25.83 GWTracked UK generation sources only
↑ +0.73 GW vs yesterday
Average carbonCO₂
158 gCO₂/kWhCarbon intensity average
↓ −71 g vs yesterday
Renewable shareClean
43.6 %Wind, solar, hydro and biomass
↑ +23.2 pts vs yesterday
Clean share+ Nuclear
57.7 %Renewables plus nuclear
↑ +22.8 pts vs yesterday
Net importsFlow
2.87 GWAverage imports minus exports
↓ −1.23 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 12 May 2023, Britain’s electricity grid averaged 29.20 GW of grid demand, with renewables averaging 43.6% of tracked domestic generation and carbon intensity averaging 158 gCO₂/kWh.

The highest demand period was 35.12 GW at 11:00, while the lowest carbon intensity period was 107 gCO₂/kWh at 14:30.

Key records for 12 May 2023

Highest wind10.22 GW17:00
Highest solar4.97 GW11:00
Highest gas12.71 GW07:30
Lowest carbon107 gCO₂/kWh14:30
Highest imports6.85 GW14:30
Highest exports1.30 GW07:45

Daily chart

Demand, generation and carbon intensity

12 May 2023

Generation mix

Wind, solar, gas and interconnector flow