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Daily UK grid report
UK Electricity Grid Yesterday — 15 June 2026

On 15 June 2026, Britain’s electricity grid averaged 29.10 GW of grid demand, with renewables averaging 43.1% of tracked domestic generation and carbon intensity averaging 153 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 29.10 GW

Average grid demand for this UK day.

Peak demand 38.65 GW

Highest 15-minute grid demand period.

Avg carbon 153 gCO₂/kWh

Average carbon intensity where available.

Renewables 43.1 %

Average renewable share of tracked generation.

Average grid demandDemand
29.10 GWFull-day average from available snapshots
↑ +4.05 GW vs yesterday
Peak demand18:15
38.65 GWHighest 15-minute grid demand period
↑ +6.93 GW vs yesterday
Lowest demand04:45
20.46 GWLowest 15-minute grid demand period
↑ +1.21 GW vs yesterday
Domestic generationSupply
21.78 GWTracked UK generation sources only
↑ +3.70 GW vs yesterday
Average carbonCO₂
153 gCO₂/kWhCarbon intensity average
↑ +56 g vs yesterday
Renewable shareClean
43.1 %Wind, solar, hydro and biomass
↓ −13.3 pts vs yesterday
Clean share+ Nuclear
57.7 %Renewables plus nuclear
↓ −15.5 pts vs yesterday
Net importsFlow
6.59 GWAverage imports minus exports
↑ +0.11 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 15 June 2026, Britain’s electricity grid averaged 29.10 GW of grid demand, with renewables averaging 43.1% of tracked domestic generation and carbon intensity averaging 153 gCO₂/kWh.

The highest demand period was 38.65 GW at 18:15, while the lowest carbon intensity period was 118 gCO₂/kWh at 13:15.

Key records for 15 June 2026

Highest wind4.69 GW01:00
Highest solar12.21 GW16:30
Highest gas12.03 GW22:30
Lowest carbon118 gCO₂/kWh13:15
Highest imports8.38 GW11:15
Highest exports1.02 GW15:30

Daily chart

Demand, generation and carbon intensity

15 June 2026

Generation mix

Wind, solar, gas and interconnector flow