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Daily UK grid report
UK Electricity Grid Daily Report — 16 August 2025

On 16 August 2025, Britain’s electricity grid averaged 26.04 GW of grid demand, with renewables averaging 47.7% of tracked domestic generation and carbon intensity averaging 125 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 26.04 GW

Average grid demand for this UK day.

Peak demand 29.53 GW

Highest 15-minute grid demand period.

Avg carbon 125 gCO₂/kWh

Average carbon intensity where available.

Renewables 47.7 %

Average renewable share of tracked generation.

Average grid demandDemand
26.04 GWFull-day average from available snapshots
↓ −4.29 GW vs yesterday
Peak demand17:45
29.53 GWHighest 15-minute grid demand period
↓ −6.41 GW vs yesterday
Lowest demand05:45
21.22 GWLowest 15-minute grid demand period
↓ −2.94 GW vs yesterday
Domestic generationSupply
18.69 GWTracked UK generation sources only
↓ −4.97 GW vs yesterday
Average carbonCO₂
125 gCO₂/kWhCarbon intensity average
↓ −14 g vs yesterday
Renewable shareClean
47.7 %Wind, solar, hydro and biomass
↓ −0.7 pts vs yesterday
Clean share+ Nuclear
63.8 %Renewables plus nuclear
↑ +2.6 pts vs yesterday
Net importsFlow
6.72 GWAverage imports minus exports
↑ +1.49 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 16 August 2025, Britain’s electricity grid averaged 26.04 GW of grid demand, with renewables averaging 47.7% of tracked domestic generation and carbon intensity averaging 125 gCO₂/kWh.

The highest demand period was 29.53 GW at 17:45, while the lowest carbon intensity period was 92 gCO₂/kWh at 13:30.

Key records for 16 August 2025

Highest wind5.02 GW06:30
Highest solar7.42 GW14:00
Highest gas8.84 GW21:00
Lowest carbon92 gCO₂/kWh13:30
Highest imports8.56 GW18:00
Highest exports1.15 GW06:00

Daily chart

Demand, generation and carbon intensity

16 August 2025

Generation mix

Wind, solar, gas and interconnector flow