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Daily UK grid report
UK Electricity Grid Daily Report — 3 March 2025

On 3 March 2025, Britain’s electricity grid averaged 36.31 GW of grid demand, with renewables averaging 46.8% of tracked domestic generation and carbon intensity averaging 151 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 36.31 GW

Average grid demand for this UK day.

Peak demand 42.86 GW

Highest 15-minute grid demand period.

Avg carbon 151 gCO₂/kWh

Average carbon intensity where available.

Renewables 46.8 %

Average renewable share of tracked generation.

Average grid demandDemand
36.31 GWFull-day average from available snapshots
↑ +3.56 GW vs yesterday
Peak demand09:15
42.86 GWHighest 15-minute grid demand period
↑ +2.96 GW vs yesterday
Lowest demand04:15
26.29 GWLowest 15-minute grid demand period
↑ +0.31 GW vs yesterday
Domestic generationSupply
30.72 GWTracked UK generation sources only
↑ +4.75 GW vs yesterday
Average carbonCO₂
151 gCO₂/kWhCarbon intensity average
↑ +29 g vs yesterday
Renewable shareClean
46.8 %Wind, solar, hydro and biomass
↓ −6.5 pts vs yesterday
Clean share+ Nuclear
60.9 %Renewables plus nuclear
↓ −9.2 pts vs yesterday
Net importsFlow
4.49 GWAverage imports minus exports
↓ −1.48 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 3 March 2025, Britain’s electricity grid averaged 36.31 GW of grid demand, with renewables averaging 46.8% of tracked domestic generation and carbon intensity averaging 151 gCO₂/kWh.

The highest demand period was 42.86 GW at 09:15, while the lowest carbon intensity period was 103 gCO₂/kWh at 03:30.

Key records for 3 March 2025

Highest wind10.27 GW00:00
Highest solar9.89 GW11:30
Highest gas20.02 GW17:30
Lowest carbon103 gCO₂/kWh03:30
Highest imports7.92 GW10:00
Highest exports2.88 GW05:15

Daily chart

Demand, generation and carbon intensity

3 March 2025

Generation mix

Wind, solar, gas and interconnector flow