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Daily UK grid report
UK Electricity Grid Daily Report — 25 February 2025

On 25 February 2025, Britain’s electricity grid averaged 37.25 GW of grid demand, with renewables averaging 47.9% of tracked domestic generation and carbon intensity averaging 134 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 37.25 GW

Average grid demand for this UK day.

Peak demand 44.41 GW

Highest 15-minute grid demand period.

Avg carbon 134 gCO₂/kWh

Average carbon intensity where available.

Renewables 47.9 %

Average renewable share of tracked generation.

Average grid demandDemand
37.25 GWFull-day average from available snapshots
↑ +0.74 GW vs yesterday
Peak demand18:00
44.41 GWHighest 15-minute grid demand period
↑ +1.30 GW vs yesterday
Lowest demand03:30
27.69 GWLowest 15-minute grid demand period
↓ −1.07 GW vs yesterday
Domestic generationSupply
32.28 GWTracked UK generation sources only
↑ +1.10 GW vs yesterday
Average carbonCO₂
134 gCO₂/kWhCarbon intensity average
↑ +60 g vs yesterday
Renewable shareClean
47.9 %Wind, solar, hydro and biomass
↓ −17.4 pts vs yesterday
Clean share+ Nuclear
62.9 %Renewables plus nuclear
↓ −17.4 pts vs yesterday
Net importsFlow
2.18 GWAverage imports minus exports
↓ −1.76 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 25 February 2025, Britain’s electricity grid averaged 37.25 GW of grid demand, with renewables averaging 47.9% of tracked domestic generation and carbon intensity averaging 134 gCO₂/kWh.

The highest demand period was 44.41 GW at 18:00, while the lowest carbon intensity period was 60 gCO₂/kWh at 02:30.

Key records for 25 February 2025

Highest wind13.91 GW01:30
Highest solar7.58 GW11:30
Highest gas19.19 GW18:30
Lowest carbon60 gCO₂/kWh02:30
Highest imports5.40 GW13:15
Highest exports4.40 GW20:00

Daily chart

Demand, generation and carbon intensity

25 February 2025

Generation mix

Wind, solar, gas and interconnector flow