Live Grid Data
Report cache
Daily UK grid report
UK Electricity Grid Daily Report — 28 May 2025

On 28 May 2025, Britain’s electricity grid averaged 29.55 GW of grid demand, with renewables averaging 54.4% of tracked domestic generation and carbon intensity averaging 94 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 29.55 GW

Average grid demand for this UK day.

Peak demand 35.21 GW

Highest 15-minute grid demand period.

Avg carbon 94 gCO₂/kWh

Average carbon intensity where available.

Renewables 54.4 %

Average renewable share of tracked generation.

Average grid demandDemand
29.55 GWFull-day average from available snapshots
↓ −1.25 GW vs yesterday
Peak demand14:30
35.21 GWHighest 15-minute grid demand period
↓ −0.19 GW vs yesterday
Lowest demand04:30
22.52 GWLowest 15-minute grid demand period
↓ −2.24 GW vs yesterday
Domestic generationSupply
23.67 GWTracked UK generation sources only
↓ −2.68 GW vs yesterday
Average carbonCO₂
94 gCO₂/kWhCarbon intensity average
↑ +13 g vs yesterday
Renewable shareClean
54.4 %Wind, solar, hydro and biomass
↓ −4.6 pts vs yesterday
Clean share+ Nuclear
75.8 %Renewables plus nuclear
↓ −2.0 pts vs yesterday
Net importsFlow
4.86 GWAverage imports minus exports
↑ +2.50 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 28 May 2025, Britain’s electricity grid averaged 29.55 GW of grid demand, with renewables averaging 54.4% of tracked domestic generation and carbon intensity averaging 94 gCO₂/kWh.

The highest demand period was 35.21 GW at 14:30, while the lowest carbon intensity period was 61 gCO₂/kWh at 14:30.

Key records for 28 May 2025

Highest wind8.07 GW00:00
Highest solar9.56 GW14:30
Highest gas10.56 GW18:30
Lowest carbon61 gCO₂/kWh14:30
Highest imports7.02 GW14:00
Highest exports2.01 GW23:45

Daily chart

Demand, generation and carbon intensity

28 May 2025

Generation mix

Wind, solar, gas and interconnector flow