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Daily UK grid report
UK Electricity Grid Daily Report — 17 February 2025

On 17 February 2025, Britain’s electricity grid averaged 40.24 GW of grid demand, with renewables averaging 42.2% of tracked domestic generation and carbon intensity averaging 186 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 40.24 GW

Average grid demand for this UK day.

Peak demand 49.53 GW

Highest 15-minute grid demand period.

Avg carbon 186 gCO₂/kWh

Average carbon intensity where available.

Renewables 42.2 %

Average renewable share of tracked generation.

Average grid demandDemand
40.24 GWFull-day average from available snapshots
↑ +5.33 GW vs yesterday
Peak demand18:00
49.53 GWHighest 15-minute grid demand period
↑ +4.58 GW vs yesterday
Lowest demand02:45
28.84 GWLowest 15-minute grid demand period
↑ +3.06 GW vs yesterday
Domestic generationSupply
37.99 GWTracked UK generation sources only
↑ +7.58 GW vs yesterday
Average carbonCO₂
186 gCO₂/kWhCarbon intensity average
↑ +54 g vs yesterday
Renewable shareClean
42.2 %Wind, solar, hydro and biomass
↓ −11.1 pts vs yesterday
Clean share+ Nuclear
53.9 %Renewables plus nuclear
↓ −14.0 pts vs yesterday
Net importsFlow
0.34 GWAverage imports minus exports
↓ −4.34 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 17 February 2025, Britain’s electricity grid averaged 40.24 GW of grid demand, with renewables averaging 42.2% of tracked domestic generation and carbon intensity averaging 186 gCO₂/kWh.

The highest demand period was 49.53 GW at 18:00, while the lowest carbon intensity period was 150 gCO₂/kWh at 00:00.

Key records for 17 February 2025

Highest wind13.15 GW21:30
Highest solar5.57 GW12:00
Highest gas23.75 GW18:00
Lowest carbon150 gCO₂/kWh00:00
Highest imports5.29 GW13:00
Highest exports4.37 GW06:15

Daily chart

Demand, generation and carbon intensity

17 February 2025

Generation mix

Wind, solar, gas and interconnector flow