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Daily UK grid report
UK Electricity Grid Daily Report — 25 July 2025

On 25 July 2025, Britain’s electricity grid averaged 29.82 GW of grid demand, with renewables averaging 41.8% of tracked domestic generation and carbon intensity averaging 136 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 29.82 GW

Average grid demand for this UK day.

Peak demand 34.46 GW

Highest 15-minute grid demand period.

Avg carbon 136 gCO₂/kWh

Average carbon intensity where available.

Renewables 41.8 %

Average renewable share of tracked generation.

Average grid demandDemand
29.82 GWFull-day average from available snapshots
↓ −0.76 GW vs yesterday
Peak demand12:45
34.46 GWHighest 15-minute grid demand period
↓ −1.09 GW vs yesterday
Lowest demand04:30
23.92 GWLowest 15-minute grid demand period
↓ −0.07 GW vs yesterday
Domestic generationSupply
24.30 GWTracked UK generation sources only
↓ −0.14 GW vs yesterday
Average carbonCO₂
136 gCO₂/kWhCarbon intensity average
↑ +4 g vs yesterday
Renewable shareClean
41.8 %Wind, solar, hydro and biomass
↓ −1.8 pts vs yesterday
Clean share+ Nuclear
61.5 %Renewables plus nuclear
↓ −1.3 pts vs yesterday
Net importsFlow
3.40 GWAverage imports minus exports
↓ −0.08 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 25 July 2025, Britain’s electricity grid averaged 29.82 GW of grid demand, with renewables averaging 41.8% of tracked domestic generation and carbon intensity averaging 136 gCO₂/kWh.

The highest demand period was 34.46 GW at 12:45, while the lowest carbon intensity period was 75 gCO₂/kWh at 12:30.

Key records for 25 July 2025

Highest wind5.75 GW16:00
Highest solar10.90 GW11:30
Highest gas12.28 GW20:30
Lowest carbon75 gCO₂/kWh12:30
Highest imports7.29 GW12:45
Highest exports3.72 GW06:00

Daily chart

Demand, generation and carbon intensity

25 July 2025

Generation mix

Wind, solar, gas and interconnector flow