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

On 31 March 2023, Britain’s electricity grid averaged 32.65 GW of grid demand, with renewables averaging 48.6% of tracked domestic generation and carbon intensity averaging 131 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 32.65 GW

Average grid demand for this UK day.

Peak demand 37.42 GW

Highest 15-minute grid demand period.

Avg carbon 131 gCO₂/kWh

Average carbon intensity where available.

Renewables 48.6 %

Average renewable share of tracked generation.

Average grid demandDemand
32.65 GWFull-day average from available snapshots
↑ +1.39 GW vs yesterday
Peak demand09:45
37.42 GWHighest 15-minute grid demand period
↑ +0.05 GW vs yesterday
Lowest demand23:45
26.10 GWLowest 15-minute grid demand period
↑ +2.86 GW vs yesterday
Domestic generationSupply
27.73 GWTracked UK generation sources only
↑ +1.07 GW vs yesterday
Average carbonCO₂
131 gCO₂/kWhCarbon intensity average
↑ +27 g vs yesterday
Renewable shareClean
48.6 %Wind, solar, hydro and biomass
↓ −8.1 pts vs yesterday
Clean share+ Nuclear
64.4 %Renewables plus nuclear
↓ −8.1 pts vs yesterday
Net importsFlow
4.61 GWAverage imports minus exports
↓ −0.08 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 31 March 2023, Britain’s electricity grid averaged 32.65 GW of grid demand, with renewables averaging 48.6% of tracked domestic generation and carbon intensity averaging 131 gCO₂/kWh.

The highest demand period was 37.42 GW at 09:45, while the lowest carbon intensity period was 78 gCO₂/kWh at 23:30.

Key records for 31 March 2023

Highest wind11.91 GW07:00
Highest solar2.83 GW12:30
Highest gas13.70 GW10:30
Lowest carbon78 gCO₂/kWh23:30
Highest imports6.16 GW21:00
Highest exports1.29 GW08:30

Daily chart

Demand, generation and carbon intensity

31 March 2023

Generation mix

Wind, solar, gas and interconnector flow