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Daily UK grid report
UK Electricity Grid Daily Report — 22 April 2025

On 22 April 2025, Britain’s electricity grid averaged 30.73 GW of grid demand, with renewables averaging 37.1% of tracked domestic generation and carbon intensity averaging 177 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 30.73 GW

Average grid demand for this UK day.

Peak demand 35.99 GW

Highest 15-minute grid demand period.

Avg carbon 177 gCO₂/kWh

Average carbon intensity where available.

Renewables 37.1 %

Average renewable share of tracked generation.

Average grid demandDemand
30.73 GWFull-day average from available snapshots
↑ +2.94 GW vs yesterday
Peak demand18:15
35.99 GWHighest 15-minute grid demand period
↑ +1.71 GW vs yesterday
Lowest demand03:30
22.80 GWLowest 15-minute grid demand period
↑ +1.16 GW vs yesterday
Domestic generationSupply
25.40 GWTracked UK generation sources only
↑ +3.14 GW vs yesterday
Average carbonCO₂
177 gCO₂/kWhCarbon intensity average
↑ +8 g vs yesterday
Renewable shareClean
37.1 %Wind, solar, hydro and biomass
↑ +2.1 pts vs yesterday
Clean share+ Nuclear
51.5 %Renewables plus nuclear
↓ −1.1 pts vs yesterday
Net importsFlow
4.10 GWAverage imports minus exports
↓ −0.77 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 22 April 2025, Britain’s electricity grid averaged 30.73 GW of grid demand, with renewables averaging 37.1% of tracked domestic generation and carbon intensity averaging 177 gCO₂/kWh.

The highest demand period was 35.99 GW at 18:15, while the lowest carbon intensity period was 133 gCO₂/kWh at 13:30.

Key records for 22 April 2025

Highest wind8.70 GW23:30
Highest solar9.97 GW11:00
Highest gas16.62 GW20:30
Lowest carbon133 gCO₂/kWh13:30
Highest imports7.79 GW12:30
Highest exports3.32 GW23:45

Daily chart

Demand, generation and carbon intensity

22 April 2025

Generation mix

Wind, solar, gas and interconnector flow