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Daily UK grid report
UK Electricity Grid Daily Report — 17 August 2026

On 17 August 2026, Britain’s electricity grid averaged 29.84 GW of grid demand, with renewables averaging 28.8% of tracked domestic generation and carbon intensity averaging 245 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 29.84 GW

Average grid demand for this UK day.

Peak demand 35.75 GW

Highest 15-minute grid demand period.

Avg carbon 245 gCO₂/kWh

Average carbon intensity where available.

Renewables 28.8 %

Average renewable share of tracked generation.

Average grid demandDemand
29.84 GWFull-day average from available snapshots
↑ +3.32 GW vs yesterday
Peak demand11:00
35.75 GWHighest 15-minute grid demand period
↑ +4.04 GW vs yesterday
Lowest demand04:30
22.94 GWLowest 15-minute grid demand period
↑ +2.92 GW vs yesterday
Domestic generationSupply
25.84 GWTracked UK generation sources only
↑ +5.24 GW vs yesterday
Average carbonCO₂
245 gCO₂/kWhCarbon intensity average
↑ +16 g vs yesterday
Renewable shareClean
28.8 %Wind, solar, hydro and biomass
↓ −5.8 pts vs yesterday
Clean share+ Nuclear
45.1 %Renewables plus nuclear
↓ −9.8 pts vs yesterday
Net importsFlow
2.91 GWAverage imports minus exports
↓ −2.32 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 17 August 2026, Britain’s electricity grid averaged 29.84 GW of grid demand, with renewables averaging 28.8% of tracked domestic generation and carbon intensity averaging 245 gCO₂/kWh.

The highest demand period was 35.75 GW at 11:00, while the lowest carbon intensity period was 187 gCO₂/kWh at 23:30.

Key records for 17 August 2026

Highest wind7.10 GW23:30
Highest solar8.11 GW13:00
Highest gas14.39 GW08:00
Lowest carbon187 gCO₂/kWh23:30
Highest imports7.15 GW12:00
Highest exports3.46 GW06:00

Daily chart

Demand, generation and carbon intensity

17 August 2026

Generation mix

Wind, solar, gas and interconnector flow