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Daily UK grid report
UK Electricity Grid Daily Report — 30 June 2026

On 30 June 2026, Britain’s electricity grid averaged 30.82 GW of grid demand, with renewables averaging 29.1% of tracked domestic generation and carbon intensity averaging 214 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 30.82 GW

Average grid demand for this UK day.

Peak demand 36.83 GW

Highest 15-minute grid demand period.

Avg carbon 214 gCO₂/kWh

Average carbon intensity where available.

Renewables 29.1 %

Average renewable share of tracked generation.

Average grid demandDemand
30.82 GWFull-day average from available snapshots
↓ −0.31 GW vs yesterday
Peak demand18:00
36.83 GWHighest 15-minute grid demand period
↑ +0.89 GW vs yesterday
Lowest demand04:45
24.17 GWLowest 15-minute grid demand period
↓ −1.00 GW vs yesterday
Domestic generationSupply
26.99 GWTracked UK generation sources only
↑ +0.11 GW vs yesterday
Average carbonCO₂
214 gCO₂/kWhCarbon intensity average
↑ +46 g vs yesterday
Renewable shareClean
29.1 %Wind, solar, hydro and biomass
↓ −15.1 pts vs yesterday
Clean share+ Nuclear
40.4 %Renewables plus nuclear
↓ −15.1 pts vs yesterday
Net importsFlow
1.36 GWAverage imports minus exports
↓ −0.69 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 30 June 2026, Britain’s electricity grid averaged 30.82 GW of grid demand, with renewables averaging 29.1% of tracked domestic generation and carbon intensity averaging 214 gCO₂/kWh.

The highest demand period was 36.83 GW at 18:00, while the lowest carbon intensity period was 151 gCO₂/kWh at 13:30.

Key records for 30 June 2026

Highest wind3.57 GW11:30
Highest solar7.90 GW13:30
Highest gas17.32 GW19:15
Lowest carbon151 gCO₂/kWh13:30
Highest imports6.33 GW12:00
Highest exports4.13 GW23:45

Daily chart

Demand, generation and carbon intensity

30 June 2026

Generation mix

Wind, solar, gas and interconnector flow