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Daily UK grid report
UK Electricity Grid Daily Report — 27 February 2025

On 27 February 2025, Britain’s electricity grid averaged 38.54 GW of grid demand, with renewables averaging 41.8% of tracked domestic generation and carbon intensity averaging 173 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 38.54 GW

Average grid demand for this UK day.

Peak demand 45.43 GW

Highest 15-minute grid demand period.

Avg carbon 173 gCO₂/kWh

Average carbon intensity where available.

Renewables 41.8 %

Average renewable share of tracked generation.

Average grid demandDemand
38.54 GWFull-day average from available snapshots
↑ +1.21 GW vs yesterday
Peak demand12:00
45.43 GWHighest 15-minute grid demand period
↑ +1.34 GW vs yesterday
Lowest demand03:45
28.23 GWLowest 15-minute grid demand period
↑ +0.13 GW vs yesterday
Domestic generationSupply
35.88 GWTracked UK generation sources only
↑ +3.84 GW vs yesterday
Average carbonCO₂
173 gCO₂/kWhCarbon intensity average
↑ +3 g vs yesterday
Renewable shareClean
41.8 %Wind, solar, hydro and biomass
↑ +3.5 pts vs yesterday
Clean share+ Nuclear
55.3 %Renewables plus nuclear
↑ +1.8 pts vs yesterday
Net importsFlow
-0.21 GWAverage imports minus exports
↓ −3.87 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 27 February 2025, Britain’s electricity grid averaged 38.54 GW of grid demand, with renewables averaging 41.8% of tracked domestic generation and carbon intensity averaging 173 gCO₂/kWh.

The highest demand period was 45.43 GW at 12:00, while the lowest carbon intensity period was 120 gCO₂/kWh at 12:30.

Key records for 27 February 2025

Highest wind11.45 GW13:30
Highest solar8.71 GW12:30
Highest gas21.96 GW18:30
Lowest carbon120 gCO₂/kWh12:30
Highest imports5.36 GW13:00
Highest exports5.91 GW06:00

Daily chart

Demand, generation and carbon intensity

27 February 2025

Generation mix

Wind, solar, gas and interconnector flow