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Daily UK grid report
UK Electricity Grid Daily Report — 20 October 2023

On 20 October 2023, Britain’s electricity grid averaged 32.19 GW of grid demand, with renewables averaging 66.3% of tracked domestic generation and carbon intensity averaging 82 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 32.19 GW

Average grid demand for this UK day.

Peak demand 38.24 GW

Highest 15-minute grid demand period.

Avg carbon 82 gCO₂/kWh

Average carbon intensity where available.

Renewables 66.3 %

Average renewable share of tracked generation.

Average grid demandDemand
32.19 GWFull-day average from available snapshots
↓ −0.52 GW vs yesterday
Peak demand18:00
38.24 GWHighest 15-minute grid demand period
↓ −0.16 GW vs yesterday
Lowest demand00:45
24.65 GWLowest 15-minute grid demand period
↓ −0.66 GW vs yesterday
Domestic generationSupply
29.58 GWTracked UK generation sources only
↓ −1.30 GW vs yesterday
Average carbonCO₂
82 gCO₂/kWhCarbon intensity average
↓ −32 g vs yesterday
Renewable shareClean
66.3 %Wind, solar, hydro and biomass
↑ +8.1 pts vs yesterday
Clean share+ Nuclear
79.9 %Renewables plus nuclear
↑ +8.3 pts vs yesterday
Net importsFlow
1.74 GWAverage imports minus exports
↑ +1.14 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 20 October 2023, Britain’s electricity grid averaged 32.19 GW of grid demand, with renewables averaging 66.3% of tracked domestic generation and carbon intensity averaging 82 gCO₂/kWh.

The highest demand period was 38.24 GW at 18:00, while the lowest carbon intensity period was 62 gCO₂/kWh at 01:00.

Key records for 20 October 2023

Highest wind18.61 GW10:00
Highest solar1.93 GW13:30
Highest gas7.67 GW18:00
Lowest carbon62 gCO₂/kWh01:00
Highest imports4.47 GW13:30
Highest exports2.87 GW05:00

Daily chart

Demand, generation and carbon intensity

20 October 2023

Generation mix

Wind, solar, gas and interconnector flow