Live Grid Data
Report cache
Daily UK grid report
UK Electricity Grid Daily Report — 3 May 2025

On 3 May 2025, Britain’s electricity grid averaged 27.21 GW of grid demand, with renewables averaging 66.4% of tracked domestic generation and carbon intensity averaging 68 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 27.21 GW

Average grid demand for this UK day.

Peak demand 33.19 GW

Highest 15-minute grid demand period.

Avg carbon 68 gCO₂/kWh

Average carbon intensity where available.

Renewables 66.4 %

Average renewable share of tracked generation.

Average grid demandDemand
27.21 GWFull-day average from available snapshots
↓ −2.44 GW vs yesterday
Peak demand12:00
33.19 GWHighest 15-minute grid demand period
↓ −2.08 GW vs yesterday
Lowest demand05:00
21.38 GWLowest 15-minute grid demand period
↓ −2.10 GW vs yesterday
Domestic generationSupply
21.56 GWTracked UK generation sources only
↓ −2.66 GW vs yesterday
Average carbonCO₂
68 gCO₂/kWhCarbon intensity average
↓ −61 g vs yesterday
Renewable shareClean
66.4 %Wind, solar, hydro and biomass
↑ +14.5 pts vs yesterday
Clean share+ Nuclear
81.8 %Renewables plus nuclear
↑ +16.6 pts vs yesterday
Net importsFlow
4.38 GWAverage imports minus exports
↑ +0.52 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 3 May 2025, Britain’s electricity grid averaged 27.21 GW of grid demand, with renewables averaging 66.4% of tracked domestic generation and carbon intensity averaging 68 gCO₂/kWh.

The highest demand period was 33.19 GW at 12:00, while the lowest carbon intensity period was 39 gCO₂/kWh at 17:00.

Key records for 3 May 2025

Highest wind13.56 GW17:30
Highest solar10.50 GW12:00
Highest gas6.38 GW00:00
Lowest carbon39 gCO₂/kWh17:00
Highest imports7.84 GW08:00
Highest exports3.18 GW12:00

Daily chart

Demand, generation and carbon intensity

3 May 2025

Generation mix

Wind, solar, gas and interconnector flow