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Daily UK grid report
UK Electricity Grid Daily Report — 31 January 2025

On 31 January 2025, Britain’s electricity grid averaged 37.18 GW of grid demand, with renewables averaging 25.5% of tracked domestic generation and carbon intensity averaging 232 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 37.18 GW

Average grid demand for this UK day.

Peak demand 43.71 GW

Highest 15-minute grid demand period.

Avg carbon 232 gCO₂/kWh

Average carbon intensity where available.

Renewables 25.5 %

Average renewable share of tracked generation.

Average grid demandDemand
37.18 GWFull-day average from available snapshots
↓ −1.13 GW vs yesterday
Peak demand12:00
43.71 GWHighest 15-minute grid demand period
↓ −2.40 GW vs yesterday
Lowest demand03:00
28.75 GWLowest 15-minute grid demand period
↓ −0.47 GW vs yesterday
Domestic generationSupply
31.99 GWTracked UK generation sources only
↓ −1.39 GW vs yesterday
Average carbonCO₂
232 gCO₂/kWhCarbon intensity average
↑ +66 g vs yesterday
Renewable shareClean
25.5 %Wind, solar, hydro and biomass
↓ −18.8 pts vs yesterday
Clean share+ Nuclear
39.2 %Renewables plus nuclear
↓ −18.2 pts vs yesterday
Net importsFlow
4.48 GWAverage imports minus exports
↑ +0.20 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 31 January 2025, Britain’s electricity grid averaged 37.18 GW of grid demand, with renewables averaging 25.5% of tracked domestic generation and carbon intensity averaging 232 gCO₂/kWh.

The highest demand period was 43.71 GW at 12:00, while the lowest carbon intensity period was 163 gCO₂/kWh at 00:00.

Key records for 31 January 2025

Highest wind8.15 GW00:30
Highest solar3.20 GW12:00
Highest gas25.10 GW17:00
Lowest carbon163 gCO₂/kWh00:00
Highest imports6.42 GW11:15
Highest exports2.07 GW06:45

Daily chart

Demand, generation and carbon intensity

31 January 2025

Generation mix

Wind, solar, gas and interconnector flow