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Daily UK grid report
UK Electricity Grid Daily Report — 28 January 2025

On 28 January 2025, Britain’s electricity grid averaged 37.33 GW of grid demand, with renewables averaging 57.2% of tracked domestic generation and carbon intensity averaging 108 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 37.33 GW

Average grid demand for this UK day.

Peak demand 44.89 GW

Highest 15-minute grid demand period.

Avg carbon 108 gCO₂/kWh

Average carbon intensity where available.

Renewables 57.2 %

Average renewable share of tracked generation.

Average grid demandDemand
37.33 GWFull-day average from available snapshots
↓ −0.58 GW vs yesterday
Peak demand17:45
44.89 GWHighest 15-minute grid demand period
↓ −1.70 GW vs yesterday
Lowest demand04:30
26.32 GWLowest 15-minute grid demand period
↑ +0.12 GW vs yesterday
Domestic generationSupply
31.83 GWTracked UK generation sources only
↑ +0.12 GW vs yesterday
Average carbonCO₂
108 gCO₂/kWhCarbon intensity average
↑ +23 g vs yesterday
Renewable shareClean
57.2 %Wind, solar, hydro and biomass
↓ −6.8 pts vs yesterday
Clean share+ Nuclear
72.5 %Renewables plus nuclear
↓ −6.6 pts vs yesterday
Net importsFlow
5.20 GWAverage imports minus exports
↓ −0.67 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 28 January 2025, Britain’s electricity grid averaged 37.33 GW of grid demand, with renewables averaging 57.2% of tracked domestic generation and carbon intensity averaging 108 gCO₂/kWh.

The highest demand period was 44.89 GW at 17:45, while the lowest carbon intensity period was 47 gCO₂/kWh at 05:30.

Key records for 28 January 2025

Highest wind15.50 GW00:30
Highest solar1.94 GW11:30
Highest gas16.06 GW17:00
Lowest carbon47 gCO₂/kWh05:30
Highest imports7.31 GW01:45
Highest exports1.71 GW16:00

Daily chart

Demand, generation and carbon intensity

28 January 2025

Generation mix

Wind, solar, gas and interconnector flow