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Daily UK grid report
UK Electricity Grid Daily Report — 12 March 2023

On 12 March 2023, Britain’s electricity grid averaged 31.00 GW of grid demand, with renewables averaging 68.7% of tracked domestic generation and carbon intensity averaging 71 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 31.00 GW

Average grid demand for this UK day.

Peak demand 38.07 GW

Highest 15-minute grid demand period.

Avg carbon 71 gCO₂/kWh

Average carbon intensity where available.

Renewables 68.7 %

Average renewable share of tracked generation.

Average grid demandDemand
31.00 GWFull-day average from available snapshots
↓ −1.77 GW vs yesterday
Peak demand18:00
38.07 GWHighest 15-minute grid demand period
↓ −0.72 GW vs yesterday
Lowest demand05:45
23.57 GWLowest 15-minute grid demand period
↓ −1.99 GW vs yesterday
Domestic generationSupply
27.17 GWTracked UK generation sources only
↑ +0.83 GW vs yesterday
Average carbonCO₂
71 gCO₂/kWhCarbon intensity average
↓ −117 g vs yesterday
Renewable shareClean
68.7 %Wind, solar, hydro and biomass
↑ +34.7 pts vs yesterday
Clean share+ Nuclear
83.9 %Renewables plus nuclear
↑ +34.0 pts vs yesterday
Net importsFlow
3.93 GWAverage imports minus exports
↓ −2.83 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 12 March 2023, Britain’s electricity grid averaged 31.00 GW of grid demand, with renewables averaging 68.7% of tracked domestic generation and carbon intensity averaging 71 gCO₂/kWh.

The highest demand period was 38.07 GW at 18:00, while the lowest carbon intensity period was 49 gCO₂/kWh at 11:00.

Key records for 12 March 2023

Highest wind17.36 GW10:30
Highest solar5.19 GW11:30
Highest gas6.86 GW18:30
Lowest carbon49 gCO₂/kWh11:00
Highest imports6.66 GW17:15
Highest exports1.21 GW08:00

Daily chart

Demand, generation and carbon intensity

12 March 2023

Generation mix

Wind, solar, gas and interconnector flow