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Daily UK grid report
UK Electricity Grid Daily Report — 12 July 2025

On 12 July 2025, Britain’s electricity grid averaged 28.37 GW of grid demand, with renewables averaging 49.5% of tracked domestic generation and carbon intensity averaging 116 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 28.37 GW

Average grid demand for this UK day.

Peak demand 32.76 GW

Highest 15-minute grid demand period.

Avg carbon 116 gCO₂/kWh

Average carbon intensity where available.

Renewables 49.5 %

Average renewable share of tracked generation.

Average grid demandDemand
28.37 GWFull-day average from available snapshots
↓ −2.92 GW vs yesterday
Peak demand12:00
32.76 GWHighest 15-minute grid demand period
↓ −3.99 GW vs yesterday
Lowest demand05:00
22.25 GWLowest 15-minute grid demand period
↓ −2.80 GW vs yesterday
Domestic generationSupply
22.05 GWTracked UK generation sources only
↓ −2.54 GW vs yesterday
Average carbonCO₂
116 gCO₂/kWhCarbon intensity average
↓ −37 g vs yesterday
Renewable shareClean
49.5 %Wind, solar, hydro and biomass
↑ +9.5 pts vs yesterday
Clean share+ Nuclear
68.7 %Renewables plus nuclear
↑ +11.6 pts vs yesterday
Net importsFlow
5.10 GWAverage imports minus exports
↓ −0.08 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 12 July 2025, Britain’s electricity grid averaged 28.37 GW of grid demand, with renewables averaging 49.5% of tracked domestic generation and carbon intensity averaging 116 gCO₂/kWh.

The highest demand period was 32.76 GW at 12:00, while the lowest carbon intensity period was 52 gCO₂/kWh at 11:30.

Key records for 12 July 2025

Highest wind6.35 GW23:00
Highest solar14.01 GW13:00
Highest gas10.72 GW00:00
Lowest carbon52 gCO₂/kWh11:30
Highest imports8.55 GW09:00
Highest exports2.72 GW23:00

Daily chart

Demand, generation and carbon intensity

12 July 2025

Generation mix

Wind, solar, gas and interconnector flow