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Daily UK grid report
UK Electricity Grid Daily Report — 15 May 2023

On 15 May 2023, Britain’s electricity grid averaged 29.71 GW of grid demand, with renewables averaging 51.1% of tracked domestic generation and carbon intensity averaging 126 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 29.71 GW

Average grid demand for this UK day.

Peak demand 35.71 GW

Highest 15-minute grid demand period.

Avg carbon 126 gCO₂/kWh

Average carbon intensity where available.

Renewables 51.1 %

Average renewable share of tracked generation.

Average grid demandDemand
29.71 GWFull-day average from available snapshots
↑ +3.88 GW vs yesterday
Peak demand12:00
35.71 GWHighest 15-minute grid demand period
↑ +5.00 GW vs yesterday
Lowest demand03:30
20.99 GWLowest 15-minute grid demand period
↑ +1.54 GW vs yesterday
Domestic generationSupply
26.31 GWTracked UK generation sources only
↑ +6.37 GW vs yesterday
Average carbonCO₂
126 gCO₂/kWhCarbon intensity average
↓ −29 g vs yesterday
Renewable shareClean
51.1 %Wind, solar, hydro and biomass
↑ +16.9 pts vs yesterday
Clean share+ Nuclear
65.1 %Renewables plus nuclear
↑ +12.4 pts vs yesterday
Net importsFlow
2.32 GWAverage imports minus exports
↓ −3.19 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 15 May 2023, Britain’s electricity grid averaged 29.71 GW of grid demand, with renewables averaging 51.1% of tracked domestic generation and carbon intensity averaging 126 gCO₂/kWh.

The highest demand period was 35.71 GW at 12:00, while the lowest carbon intensity period was 69 gCO₂/kWh at 15:00.

Key records for 15 May 2023

Highest wind12.45 GW10:00
Highest solar8.84 GW12:00
Highest gas11.26 GW20:30
Lowest carbon69 gCO₂/kWh15:00
Highest imports7.26 GW21:45
Highest exports2.99 GW05:15

Daily chart

Demand, generation and carbon intensity

15 May 2023

Generation mix

Wind, solar, gas and interconnector flow