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Daily UK grid report
UK Electricity Grid Daily Report — 17 December 2023

On 17 December 2023, Britain’s electricity grid averaged 33.35 GW of grid demand, with renewables averaging 70.4% of tracked domestic generation and carbon intensity averaging 62 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 33.35 GW

Average grid demand for this UK day.

Peak demand 40.14 GW

Highest 15-minute grid demand period.

Avg carbon 62 gCO₂/kWh

Average carbon intensity where available.

Renewables 70.4 %

Average renewable share of tracked generation.

Average grid demandDemand
33.35 GWFull-day average from available snapshots
↑ +0.42 GW vs yesterday
Peak demand17:30
40.14 GWHighest 15-minute grid demand period
↑ +0.56 GW vs yesterday
Lowest demand03:30
28.35 GWLowest 15-minute grid demand period
↑ +2.02 GW vs yesterday
Domestic generationSupply
31.44 GWTracked UK generation sources only
↑ +0.88 GW vs yesterday
Average carbonCO₂
62 gCO₂/kWhCarbon intensity average
↓ −10 g vs yesterday
Renewable shareClean
70.4 %Wind, solar, hydro and biomass
↑ +3.4 pts vs yesterday
Clean share+ Nuclear
85.3 %Renewables plus nuclear
↑ +3.0 pts vs yesterday
Net importsFlow
0.40 GWAverage imports minus exports
↓ −1.27 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 17 December 2023, Britain’s electricity grid averaged 33.35 GW of grid demand, with renewables averaging 70.4% of tracked domestic generation and carbon intensity averaging 62 gCO₂/kWh.

The highest demand period was 40.14 GW at 17:30, while the lowest carbon intensity period was 48 gCO₂/kWh at 13:30.

Key records for 17 December 2023

Highest wind20.63 GW12:30
Highest solar2.06 GW11:30
Highest gas6.46 GW16:30
Lowest carbon48 gCO₂/kWh13:30
Highest imports4.35 GW17:00
Highest exports5.41 GW05:30

Daily chart

Demand, generation and carbon intensity

17 December 2023

Generation mix

Wind, solar, gas and interconnector flow