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

On 19 July 2025, Britain’s electricity grid averaged 27.73 GW of grid demand, with renewables averaging 38.0% of tracked domestic generation and carbon intensity averaging 139 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 27.73 GW

Average grid demand for this UK day.

Peak demand 32.22 GW

Highest 15-minute grid demand period.

Avg carbon 139 gCO₂/kWh

Average carbon intensity where available.

Renewables 38.0 %

Average renewable share of tracked generation.

Average grid demandDemand
27.73 GWFull-day average from available snapshots
↓ −3.54 GW vs yesterday
Peak demand18:00
32.22 GWHighest 15-minute grid demand period
↓ −4.21 GW vs yesterday
Lowest demand05:15
23.13 GWLowest 15-minute grid demand period
↓ −2.03 GW vs yesterday
Domestic generationSupply
21.48 GWTracked UK generation sources only
↓ −4.36 GW vs yesterday
Average carbonCO₂
139 gCO₂/kWhCarbon intensity average
↓ −7 g vs yesterday
Renewable shareClean
38.0 %Wind, solar, hydro and biomass
↓ −5.4 pts vs yesterday
Clean share+ Nuclear
59.2 %Renewables plus nuclear
↓ −1.3 pts vs yesterday
Net importsFlow
4.76 GWAverage imports minus exports
↑ +1.43 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 19 July 2025, Britain’s electricity grid averaged 27.73 GW of grid demand, with renewables averaging 38.0% of tracked domestic generation and carbon intensity averaging 139 gCO₂/kWh.

The highest demand period was 32.22 GW at 18:00, while the lowest carbon intensity period was 80 gCO₂/kWh at 14:30.

Key records for 19 July 2025

Highest wind7.66 GW15:30
Highest solar4.59 GW15:00
Highest gas10.73 GW00:00
Lowest carbon80 gCO₂/kWh14:30
Highest imports8.23 GW12:30
Highest exports3.46 GW00:00

Daily chart

Demand, generation and carbon intensity

19 July 2025

Generation mix

Wind, solar, gas and interconnector flow