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Daily UK grid report
UK Electricity Grid Daily Report — 4 July 2026

On 4 July 2026, Britain’s electricity grid averaged 29.05 GW of grid demand, with renewables averaging 72.1% of tracked domestic generation and carbon intensity averaging 68 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 29.05 GW

Average grid demand for this UK day.

Peak demand 35.58 GW

Highest 15-minute grid demand period.

Avg carbon 68 gCO₂/kWh

Average carbon intensity where available.

Renewables 72.1 %

Average renewable share of tracked generation.

Average grid demandDemand
29.05 GWFull-day average from available snapshots
↓ −0.19 GW vs yesterday
Peak demand13:00
35.58 GWHighest 15-minute grid demand period
↑ +0.10 GW vs yesterday
Lowest demand03:15
23.89 GWLowest 15-minute grid demand period
↑ +1.18 GW vs yesterday
Domestic generationSupply
24.99 GWTracked UK generation sources only
↑ +2.93 GW vs yesterday
Average carbonCO₂
68 gCO₂/kWhCarbon intensity average
↓ −55 g vs yesterday
Renewable shareClean
72.1 %Wind, solar, hydro and biomass
↑ +9.0 pts vs yesterday
Clean share+ Nuclear
84.3 %Renewables plus nuclear
↑ +7.4 pts vs yesterday
Net importsFlow
2.48 GWAverage imports minus exports
↓ −3.87 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 4 July 2026, Britain’s electricity grid averaged 29.05 GW of grid demand, with renewables averaging 72.1% of tracked domestic generation and carbon intensity averaging 68 gCO₂/kWh.

The highest demand period was 35.58 GW at 13:00, while the lowest carbon intensity period was 39 gCO₂/kWh at 14:30.

Key records for 4 July 2026

Highest wind16.55 GW14:30
Highest solar10.90 GW13:00
Highest gas4.59 GW00:00
Lowest carbon39 gCO₂/kWh14:30
Highest imports6.94 GW00:00
Highest exports4.52 GW15:00

Daily chart

Demand, generation and carbon intensity

4 July 2026

Generation mix

Wind, solar, gas and interconnector flow