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Daily UK grid report
UK Electricity Grid Daily Report — 29 July 2025

On 29 July 2025, Britain’s electricity grid averaged 28.31 GW of grid demand, with renewables averaging 31.3% of tracked domestic generation and carbon intensity averaging 165 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 28.31 GW

Average grid demand for this UK day.

Peak demand 33.22 GW

Highest 15-minute grid demand period.

Avg carbon 165 gCO₂/kWh

Average carbon intensity where available.

Renewables 31.3 %

Average renewable share of tracked generation.

Average grid demandDemand
28.31 GWFull-day average from available snapshots
↓ −0.44 GW vs yesterday
Peak demand12:00
33.22 GWHighest 15-minute grid demand period
↓ −1.37 GW vs yesterday
Lowest demand05:15
21.21 GWLowest 15-minute grid demand period
↓ −0.40 GW vs yesterday
Domestic generationSupply
21.12 GWTracked UK generation sources only
↓ −0.39 GW vs yesterday
Average carbonCO₂
165 gCO₂/kWhCarbon intensity average
↑ +50 g vs yesterday
Renewable shareClean
31.3 %Wind, solar, hydro and biomass
↓ −16.1 pts vs yesterday
Clean share+ Nuclear
51.7 %Renewables plus nuclear
↓ −15.4 pts vs yesterday
Net importsFlow
6.31 GWAverage imports minus exports
↑ +0.57 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 29 July 2025, Britain’s electricity grid averaged 28.31 GW of grid demand, with renewables averaging 31.3% of tracked domestic generation and carbon intensity averaging 165 gCO₂/kWh.

The highest demand period was 33.22 GW at 12:00, while the lowest carbon intensity period was 136 gCO₂/kWh at 02:00.

Key records for 29 July 2025

Highest wind2.50 GW23:30
Highest solar6.63 GW12:30
Highest gas12.87 GW19:30
Lowest carbon136 gCO₂/kWh02:00
Highest imports7.86 GW10:00
Highest exports2.28 GW22:15

Daily chart

Demand, generation and carbon intensity

29 July 2025

Generation mix

Wind, solar, gas and interconnector flow