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

On 20 March 2023, Britain’s electricity grid averaged 32.02 GW of grid demand, with renewables averaging 37.4% of tracked domestic generation and carbon intensity averaging 182 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 32.02 GW

Average grid demand for this UK day.

Peak demand 39.49 GW

Highest 15-minute grid demand period.

Avg carbon 182 gCO₂/kWh

Average carbon intensity where available.

Renewables 37.4 %

Average renewable share of tracked generation.

Average grid demandDemand
32.02 GWFull-day average from available snapshots
↑ +3.33 GW vs yesterday
Peak demand18:00
39.49 GWHighest 15-minute grid demand period
↑ +4.15 GW vs yesterday
Lowest demand04:15
22.12 GWLowest 15-minute grid demand period
↓ −0.12 GW vs yesterday
Domestic generationSupply
28.27 GWTracked UK generation sources only
↑ +4.97 GW vs yesterday
Average carbonCO₂
182 gCO₂/kWhCarbon intensity average
↑ +25 g vs yesterday
Renewable shareClean
37.4 %Wind, solar, hydro and biomass
↓ −2.5 pts vs yesterday
Clean share+ Nuclear
51.3 %Renewables plus nuclear
↓ −6.1 pts vs yesterday
Net importsFlow
3.79 GWAverage imports minus exports
↓ −1.64 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 20 March 2023, Britain’s electricity grid averaged 32.02 GW of grid demand, with renewables averaging 37.4% of tracked domestic generation and carbon intensity averaging 182 gCO₂/kWh.

The highest demand period was 39.49 GW at 18:00, while the lowest carbon intensity period was 91 gCO₂/kWh at 23:30.

Key records for 20 March 2023

Highest wind12.78 GW23:30
Highest solar2.37 GW12:30
Highest gas18.89 GW18:30
Lowest carbon91 gCO₂/kWh23:30
Highest imports6.82 GW13:00
Highest exports1.11 GW05:00

Daily chart

Demand, generation and carbon intensity

20 March 2023

Generation mix

Wind, solar, gas and interconnector flow