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Daily UK grid report
UK Electricity Grid Daily Report — 4 March 2023

On 4 March 2023, Britain’s electricity grid averaged 33.21 GW of grid demand, with renewables averaging 22.0% of tracked domestic generation and carbon intensity averaging 236 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 33.21 GW

Average grid demand for this UK day.

Peak demand 39.16 GW

Highest 15-minute grid demand period.

Avg carbon 236 gCO₂/kWh

Average carbon intensity where available.

Renewables 22.0 %

Average renewable share of tracked generation.

Average grid demandDemand
33.21 GWFull-day average from available snapshots
↓ −3.30 GW vs yesterday
Peak demand18:00
39.16 GWHighest 15-minute grid demand period
↓ −2.94 GW vs yesterday
Lowest demand23:30
27.28 GWLowest 15-minute grid demand period
↓ −1.58 GW vs yesterday
Domestic generationSupply
29.01 GWTracked UK generation sources only
↓ −3.47 GW vs yesterday
Average carbonCO₂
236 gCO₂/kWhCarbon intensity average
↓ −12 g vs yesterday
Renewable shareClean
22.0 %Wind, solar, hydro and biomass
↓ −0.1 pts vs yesterday
Clean share+ Nuclear
37.6 %Renewables plus nuclear
↑ +2.2 pts vs yesterday
Net importsFlow
2.64 GWAverage imports minus exports
↑ +0.37 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 4 March 2023, Britain’s electricity grid averaged 33.21 GW of grid demand, with renewables averaging 22.0% of tracked domestic generation and carbon intensity averaging 236 gCO₂/kWh.

The highest demand period was 39.16 GW at 18:00, while the lowest carbon intensity period was 217 gCO₂/kWh at 10:00.

Key records for 4 March 2023

Highest wind5.69 GW06:30
Highest solar2.24 GW11:00
Highest gas21.04 GW18:00
Lowest carbon217 gCO₂/kWh10:00
Highest imports7.19 GW12:00
Highest exports4.72 GW05:00

Daily chart

Demand, generation and carbon intensity

4 March 2023

Generation mix

Wind, solar, gas and interconnector flow