Live Grid Data
Report cache
Daily UK grid report
UK Electricity Grid Daily Report — 4 May 2023

On 4 May 2023, Britain’s electricity grid averaged 31.28 GW of grid demand, with renewables averaging 62.3% of tracked domestic generation and carbon intensity averaging 97 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 31.28 GW

Average grid demand for this UK day.

Peak demand 37.08 GW

Highest 15-minute grid demand period.

Avg carbon 97 gCO₂/kWh

Average carbon intensity where available.

Renewables 62.3 %

Average renewable share of tracked generation.

Average grid demandDemand
31.28 GWFull-day average from available snapshots
↑ +1.39 GW vs yesterday
Peak demand18:00
37.08 GWHighest 15-minute grid demand period
↑ +1.74 GW vs yesterday
Lowest demand04:45
23.67 GWLowest 15-minute grid demand period
↑ +2.09 GW vs yesterday
Domestic generationSupply
29.00 GWTracked UK generation sources only
↑ +2.95 GW vs yesterday
Average carbonCO₂
97 gCO₂/kWhCarbon intensity average
↓ −67 g vs yesterday
Renewable shareClean
62.3 %Wind, solar, hydro and biomass
↑ +19.7 pts vs yesterday
Clean share+ Nuclear
75.6 %Renewables plus nuclear
↑ +19.2 pts vs yesterday
Net importsFlow
1.59 GWAverage imports minus exports
↓ −2.00 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 4 May 2023, Britain’s electricity grid averaged 31.28 GW of grid demand, with renewables averaging 62.3% of tracked domestic generation and carbon intensity averaging 97 gCO₂/kWh.

The highest demand period was 37.08 GW at 18:00, while the lowest carbon intensity period was 47 gCO₂/kWh at 11:30.

Key records for 4 May 2023

Highest wind17.45 GW11:30
Highest solar7.77 GW11:30
Highest gas12.73 GW20:00
Lowest carbon47 gCO₂/kWh11:30
Highest imports4.90 GW08:00
Highest exports2.63 GW04:30

Daily chart

Demand, generation and carbon intensity

4 May 2023

Generation mix

Wind, solar, gas and interconnector flow