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Daily UK grid report
UK Electricity Grid Daily Report — 13 December 2023

On 13 December 2023, Britain’s electricity grid averaged 33.41 GW of grid demand, with renewables averaging 43.5% of tracked domestic generation and carbon intensity averaging 173 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 33.41 GW

Average grid demand for this UK day.

Peak demand 40.83 GW

Highest 15-minute grid demand period.

Avg carbon 173 gCO₂/kWh

Average carbon intensity where available.

Renewables 43.5 %

Average renewable share of tracked generation.

Average grid demandDemand
33.41 GWFull-day average from available snapshots
↓ −3.55 GW vs yesterday
Peak demand17:00
40.83 GWHighest 15-minute grid demand period
↓ −2.92 GW vs yesterday
Lowest demand05:15
24.58 GWLowest 15-minute grid demand period
↓ −1.78 GW vs yesterday
Domestic generationSupply
31.27 GWTracked UK generation sources only
↓ −2.52 GW vs yesterday
Average carbonCO₂
173 gCO₂/kWhCarbon intensity average
↓ −21 g vs yesterday
Renewable shareClean
43.5 %Wind, solar, hydro and biomass
↑ +6.1 pts vs yesterday
Clean share+ Nuclear
59.3 %Renewables plus nuclear
↑ +7.3 pts vs yesterday
Net importsFlow
1.19 GWAverage imports minus exports
↓ −0.29 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 13 December 2023, Britain’s electricity grid averaged 33.41 GW of grid demand, with renewables averaging 43.5% of tracked domestic generation and carbon intensity averaging 173 gCO₂/kWh.

The highest demand period was 40.83 GW at 17:00, while the lowest carbon intensity period was 134 gCO₂/kWh at 03:30.

Key records for 13 December 2023

Highest wind11.59 GW08:00
Highest solar1.70 GW12:30
Highest gas16.97 GW18:00
Lowest carbon134 gCO₂/kWh03:30
Highest imports6.40 GW00:15
Highest exports3.05 GW07:45

Daily chart

Demand, generation and carbon intensity

13 December 2023

Generation mix

Wind, solar, gas and interconnector flow