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Daily UK grid report
UK Electricity Grid Daily Report — 26 March 2025

On 26 March 2025, Britain’s electricity grid averaged 34.37 GW of grid demand, with renewables averaging 37.8% of tracked domestic generation and carbon intensity averaging 168 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 34.37 GW

Average grid demand for this UK day.

Peak demand 42.37 GW

Highest 15-minute grid demand period.

Avg carbon 168 gCO₂/kWh

Average carbon intensity where available.

Renewables 37.8 %

Average renewable share of tracked generation.

Average grid demandDemand
34.37 GWFull-day average from available snapshots
↑ +0.16 GW vs yesterday
Peak demand18:00
42.37 GWHighest 15-minute grid demand period
↑ +2.39 GW vs yesterday
Lowest demand04:45
25.58 GWLowest 15-minute grid demand period
↓ −0.63 GW vs yesterday
Domestic generationSupply
28.47 GWTracked UK generation sources only
↑ +0.33 GW vs yesterday
Average carbonCO₂
168 gCO₂/kWhCarbon intensity average
↑ +2 g vs yesterday
Renewable shareClean
37.8 %Wind, solar, hydro and biomass
↓ −0.6 pts vs yesterday
Clean share+ Nuclear
51.4 %Renewables plus nuclear
↓ −1.1 pts vs yesterday
Net importsFlow
3.79 GWAverage imports minus exports
↓ −0.71 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 26 March 2025, Britain’s electricity grid averaged 34.37 GW of grid demand, with renewables averaging 37.8% of tracked domestic generation and carbon intensity averaging 168 gCO₂/kWh.

The highest demand period was 42.37 GW at 18:00, while the lowest carbon intensity period was 99 gCO₂/kWh at 13:30.

Key records for 26 March 2025

Highest wind11.67 GW20:30
Highest solar10.52 GW12:30
Highest gas19.56 GW18:30
Lowest carbon99 gCO₂/kWh13:30
Highest imports8.00 GW01:00
Highest exports4.65 GW18:00

Daily chart

Demand, generation and carbon intensity

26 March 2025

Generation mix

Wind, solar, gas and interconnector flow