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Daily UK grid report
UK Electricity Grid Daily Report — 20 February 2025

On 20 February 2025, Britain’s electricity grid averaged 37.51 GW of grid demand, with renewables averaging 67.7% of tracked domestic generation and carbon intensity averaging 78 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 37.51 GW

Average grid demand for this UK day.

Peak demand 43.35 GW

Highest 15-minute grid demand period.

Avg carbon 78 gCO₂/kWh

Average carbon intensity where available.

Renewables 67.7 %

Average renewable share of tracked generation.

Average grid demandDemand
37.51 GWFull-day average from available snapshots
↓ −1.64 GW vs yesterday
Peak demand18:00
43.35 GWHighest 15-minute grid demand period
↓ −2.88 GW vs yesterday
Lowest demand23:45
29.87 GWLowest 15-minute grid demand period
↑ +0.31 GW vs yesterday
Domestic generationSupply
32.94 GWTracked UK generation sources only
↓ −2.12 GW vs yesterday
Average carbonCO₂
78 gCO₂/kWhCarbon intensity average
↓ −43 g vs yesterday
Renewable shareClean
67.7 %Wind, solar, hydro and biomass
↑ +10.6 pts vs yesterday
Clean share+ Nuclear
82.0 %Renewables plus nuclear
↑ +11.4 pts vs yesterday
Net importsFlow
3.93 GWAverage imports minus exports
↑ +0.20 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 20 February 2025, Britain’s electricity grid averaged 37.51 GW of grid demand, with renewables averaging 67.7% of tracked domestic generation and carbon intensity averaging 78 gCO₂/kWh.

The highest demand period was 43.35 GW at 18:00, while the lowest carbon intensity period was 60 gCO₂/kWh at 15:00.

Key records for 20 February 2025

Highest wind21.72 GW13:00
Highest solar1.81 GW12:30
Highest gas6.75 GW18:00
Lowest carbon60 gCO₂/kWh15:00
Highest imports7.33 GW12:00
Highest exports4.65 GW05:00

Daily chart

Demand, generation and carbon intensity

20 February 2025

Generation mix

Wind, solar, gas and interconnector flow