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Daily UK grid report
UK Electricity Grid Yesterday — 26 June 2026

On 26 June 2026, Britain’s electricity grid averaged 34.51 GW of grid demand, with renewables averaging 43.5% of tracked domestic generation and carbon intensity averaging 169 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 34.51 GW

Average grid demand for this UK day.

Peak demand 40.44 GW

Highest 15-minute grid demand period.

Avg carbon 169 gCO₂/kWh

Average carbon intensity where available.

Renewables 43.5 %

Average renewable share of tracked generation.

Average grid demandDemand
34.51 GWFull-day average from available snapshots
↓ −0.04 GW vs yesterday
Peak demand18:00
40.44 GWHighest 15-minute grid demand period
↓ −1.77 GW vs yesterday
Lowest demand04:45
27.06 GWLowest 15-minute grid demand period
↑ +0.71 GW vs yesterday
Domestic generationSupply
31.12 GWTracked UK generation sources only
↑ +0.24 GW vs yesterday
Average carbonCO₂
169 gCO₂/kWhCarbon intensity average
No change vs yesterday
Renewable shareClean
43.5 %Wind, solar, hydro and biomass
↑ +2.0 pts vs yesterday
Clean share+ Nuclear
54.1 %Renewables plus nuclear
↑ +0.6 pts vs yesterday
Net importsFlow
1.19 GWAverage imports minus exports
↓ −0.13 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 26 June 2026, Britain’s electricity grid averaged 34.51 GW of grid demand, with renewables averaging 43.5% of tracked domestic generation and carbon intensity averaging 169 gCO₂/kWh.

The highest demand period was 40.44 GW at 18:00, while the lowest carbon intensity period was 107 gCO₂/kWh at 15:00.

Key records for 26 June 2026

Highest wind10.83 GW00:00
Highest solar13.12 GW14:00
Highest gas15.95 GW20:15
Lowest carbon107 gCO₂/kWh15:00
Highest imports8.39 GW09:15
Highest exports5.94 GW00:00

Daily chart

Demand, generation and carbon intensity

26 June 2026

Generation mix

Wind, solar, gas and interconnector flow