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Daily UK grid report
UK Electricity Grid Daily Report — 16 September 2023

On 16 September 2023, Britain’s electricity grid averaged 26.94 GW of grid demand, with renewables averaging 38.3% of tracked domestic generation and carbon intensity averaging 138 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 26.94 GW

Average grid demand for this UK day.

Peak demand 32.13 GW

Highest 15-minute grid demand period.

Avg carbon 138 gCO₂/kWh

Average carbon intensity where available.

Renewables 38.3 %

Average renewable share of tracked generation.

Average grid demandDemand
26.94 GWFull-day average from available snapshots
↓ −2.66 GW vs yesterday
Peak demand19:30
32.13 GWHighest 15-minute grid demand period
↓ −3.13 GW vs yesterday
Lowest demand03:30
20.94 GWLowest 15-minute grid demand period
↓ −1.72 GW vs yesterday
Domestic generationSupply
22.31 GWTracked UK generation sources only
↓ −3.30 GW vs yesterday
Average carbonCO₂
138 gCO₂/kWhCarbon intensity average
↓ −60 g vs yesterday
Renewable shareClean
38.3 %Wind, solar, hydro and biomass
↑ +12.2 pts vs yesterday
Clean share+ Nuclear
62.2 %Renewables plus nuclear
↑ +15.2 pts vs yesterday
Net importsFlow
3.34 GWAverage imports minus exports
↑ +0.84 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 16 September 2023, Britain’s electricity grid averaged 26.94 GW of grid demand, with renewables averaging 38.3% of tracked domestic generation and carbon intensity averaging 138 gCO₂/kWh.

The highest demand period was 32.13 GW at 19:30, while the lowest carbon intensity period was 111 gCO₂/kWh at 03:30.

Key records for 16 September 2023

Highest wind7.56 GW20:00
Highest solar5.18 GW12:00
Highest gas12.28 GW21:00
Lowest carbon111 gCO₂/kWh03:30
Highest imports6.44 GW11:15
Highest exports3.08 GW18:45

Daily chart

Demand, generation and carbon intensity

16 September 2023

Generation mix

Wind, solar, gas and interconnector flow