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Daily UK grid report
UK Electricity Grid Daily Report — 15 March 2023

On 15 March 2023, Britain’s electricity grid averaged 35.08 GW of grid demand, with renewables averaging 35.9% of tracked domestic generation and carbon intensity averaging 192 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 35.08 GW

Average grid demand for this UK day.

Peak demand 42.47 GW

Highest 15-minute grid demand period.

Avg carbon 192 gCO₂/kWh

Average carbon intensity where available.

Renewables 35.9 %

Average renewable share of tracked generation.

Average grid demandDemand
35.08 GWFull-day average from available snapshots
↓ −0.25 GW vs yesterday
Peak demand17:00
42.47 GWHighest 15-minute grid demand period
↓ −0.19 GW vs yesterday
Lowest demand05:15
26.09 GWLowest 15-minute grid demand period
↓ −0.35 GW vs yesterday
Domestic generationSupply
30.46 GWTracked UK generation sources only
↑ +0.52 GW vs yesterday
Average carbonCO₂
192 gCO₂/kWhCarbon intensity average
↑ +67 g vs yesterday
Renewable shareClean
35.9 %Wind, solar, hydro and biomass
↓ −16.8 pts vs yesterday
Clean share+ Nuclear
49.7 %Renewables plus nuclear
↓ −16.9 pts vs yesterday
Net importsFlow
4.78 GWAverage imports minus exports
↓ −0.03 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 15 March 2023, Britain’s electricity grid averaged 35.08 GW of grid demand, with renewables averaging 35.9% of tracked domestic generation and carbon intensity averaging 192 gCO₂/kWh.

The highest demand period was 42.47 GW at 17:00, while the lowest carbon intensity period was 65 gCO₂/kWh at 23:30.

Key records for 15 March 2023

Highest wind17.09 GW23:00
Highest solar4.41 GW11:30
Highest gas19.65 GW18:00
Lowest carbon65 gCO₂/kWh23:30
Highest imports7.14 GW14:30
Highest exports0.98 GW00:00

Daily chart

Demand, generation and carbon intensity

15 March 2023

Generation mix

Wind, solar, gas and interconnector flow