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Daily UK grid report
UK Electricity Grid Daily Report — 31 July 2023

On 31 July 2023, Britain’s electricity grid averaged 27.61 GW of grid demand, with renewables averaging 59.3% of tracked domestic generation and carbon intensity averaging 105 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 27.61 GW

Average grid demand for this UK day.

Peak demand 32.89 GW

Highest 15-minute grid demand period.

Avg carbon 105 gCO₂/kWh

Average carbon intensity where available.

Renewables 59.3 %

Average renewable share of tracked generation.

Average grid demandDemand
27.61 GWFull-day average from available snapshots
↑ +1.22 GW vs yesterday
Peak demand15:00
32.89 GWHighest 15-minute grid demand period
↑ +0.98 GW vs yesterday
Lowest demand04:30
19.73 GWLowest 15-minute grid demand period
↓ −1.55 GW vs yesterday
Domestic generationSupply
23.79 GWTracked UK generation sources only
↑ +0.13 GW vs yesterday
Average carbonCO₂
105 gCO₂/kWhCarbon intensity average
↑ +16 g vs yesterday
Renewable shareClean
59.3 %Wind, solar, hydro and biomass
↓ −6.0 pts vs yesterday
Clean share+ Nuclear
71.8 %Renewables plus nuclear
↓ −5.9 pts vs yesterday
Net importsFlow
3.17 GWAverage imports minus exports
↑ +2.52 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 31 July 2023, Britain’s electricity grid averaged 27.61 GW of grid demand, with renewables averaging 59.3% of tracked domestic generation and carbon intensity averaging 105 gCO₂/kWh.

The highest demand period was 32.89 GW at 15:00, while the lowest carbon intensity period was 84 gCO₂/kWh at 23:30.

Key records for 31 July 2023

Highest wind13.20 GW13:00
Highest solar2.94 GW16:30
Highest gas8.35 GW18:00
Lowest carbon84 gCO₂/kWh23:30
Highest imports6.21 GW14:00
Highest exports2.11 GW05:00

Daily chart

Demand, generation and carbon intensity

31 July 2023

Generation mix

Wind, solar, gas and interconnector flow