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Daily UK grid report
UK Electricity Grid Daily Report — 15 August 2026

On 15 August 2026, Britain’s electricity grid averaged 27.91 GW of grid demand, with renewables averaging 50.5% of tracked domestic generation and carbon intensity averaging 154 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 27.91 GW

Average grid demand for this UK day.

Peak demand 32.14 GW

Highest 15-minute grid demand period.

Avg carbon 154 gCO₂/kWh

Average carbon intensity where available.

Renewables 50.5 %

Average renewable share of tracked generation.

Average grid demandDemand
27.91 GWFull-day average from available snapshots
↓ −3.39 GW vs yesterday
Peak demand12:30
32.14 GWHighest 15-minute grid demand period
↓ −5.64 GW vs yesterday
Lowest demand05:30
22.10 GWLowest 15-minute grid demand period
↓ −1.20 GW vs yesterday
Domestic generationSupply
22.14 GWTracked UK generation sources only
↓ −3.65 GW vs yesterday
Average carbonCO₂
154 gCO₂/kWhCarbon intensity average
↓ −46 g vs yesterday
Renewable shareClean
50.5 %Wind, solar, hydro and biomass
↑ +9.5 pts vs yesterday
Clean share+ Nuclear
68.4 %Renewables plus nuclear
↑ +12.4 pts vs yesterday
Net importsFlow
4.69 GWAverage imports minus exports
No change vs yesterday

Daily insight

What happened on the UK electricity grid?

On 15 August 2026, Britain’s electricity grid averaged 27.91 GW of grid demand, with renewables averaging 50.5% of tracked domestic generation and carbon intensity averaging 154 gCO₂/kWh.

The highest demand period was 32.14 GW at 12:30, while the lowest carbon intensity period was 98 gCO₂/kWh at 13:30.

Key records for 15 August 2026

Highest wind6.39 GW07:30
Highest solar10.64 GW12:30
Highest gas10.38 GW22:00
Lowest carbon98 gCO₂/kWh13:30
Highest imports8.79 GW15:00
Highest exports1.50 GW08:30

Daily chart

Demand, generation and carbon intensity

15 August 2026

Generation mix

Wind, solar, gas and interconnector flow