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Daily UK grid report
UK Electricity Grid Daily Report — 19 June 2025

On 19 June 2025, Britain’s electricity grid averaged 30.94 GW of grid demand, with renewables averaging 42.6% of tracked domestic generation and carbon intensity averaging 142 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 30.94 GW

Average grid demand for this UK day.

Peak demand 35.58 GW

Highest 15-minute grid demand period.

Avg carbon 142 gCO₂/kWh

Average carbon intensity where available.

Renewables 42.6 %

Average renewable share of tracked generation.

Average grid demandDemand
30.94 GWFull-day average from available snapshots
↓ −0.25 GW vs yesterday
Peak demand13:45
35.58 GWHighest 15-minute grid demand period
↓ −1.24 GW vs yesterday
Lowest demand03:15
23.60 GWLowest 15-minute grid demand period
↓ −0.83 GW vs yesterday
Domestic generationSupply
25.31 GWTracked UK generation sources only
↓ −0.42 GW vs yesterday
Average carbonCO₂
142 gCO₂/kWhCarbon intensity average
↑ +11 g vs yesterday
Renewable shareClean
42.6 %Wind, solar, hydro and biomass
↓ −3.6 pts vs yesterday
Clean share+ Nuclear
62.0 %Renewables plus nuclear
↓ −3.0 pts vs yesterday
Net importsFlow
4.44 GWAverage imports minus exports
↑ +0.93 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 19 June 2025, Britain’s electricity grid averaged 30.94 GW of grid demand, with renewables averaging 42.6% of tracked domestic generation and carbon intensity averaging 142 gCO₂/kWh.

The highest demand period was 35.58 GW at 13:45, while the lowest carbon intensity period was 83 gCO₂/kWh at 15:00.

Key records for 19 June 2025

Highest wind8.13 GW23:30
Highest solar13.54 GW12:30
Highest gas12.05 GW21:00
Lowest carbon83 gCO₂/kWh15:00
Highest imports7.07 GW08:00
Highest exports2.33 GW21:45

Daily chart

Demand, generation and carbon intensity

19 June 2025

Generation mix

Wind, solar, gas and interconnector flow