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Daily UK grid report
UK Electricity Grid Daily Report — 14 May 2025

On 14 May 2025, Britain’s electricity grid averaged 30.28 GW of grid demand, with renewables averaging 55.6% of tracked domestic generation and carbon intensity averaging 85 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 30.28 GW

Average grid demand for this UK day.

Peak demand 35.47 GW

Highest 15-minute grid demand period.

Avg carbon 85 gCO₂/kWh

Average carbon intensity where available.

Renewables 55.6 %

Average renewable share of tracked generation.

Average grid demandDemand
30.28 GWFull-day average from available snapshots
↑ +0.20 GW vs yesterday
Peak demand12:00
35.47 GWHighest 15-minute grid demand period
↓ −0.16 GW vs yesterday
Lowest demand04:15
23.15 GWLowest 15-minute grid demand period
↑ +0.15 GW vs yesterday
Domestic generationSupply
24.91 GWTracked UK generation sources only
No change vs yesterday
Average carbonCO₂
85 gCO₂/kWhCarbon intensity average
↓ −25 g vs yesterday
Renewable shareClean
55.6 %Wind, solar, hydro and biomass
↑ +4.6 pts vs yesterday
Clean share+ Nuclear
76.7 %Renewables plus nuclear
↑ +6.7 pts vs yesterday
Net importsFlow
3.80 GWAverage imports minus exports
↓ −0.07 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 14 May 2025, Britain’s electricity grid averaged 30.28 GW of grid demand, with renewables averaging 55.6% of tracked domestic generation and carbon intensity averaging 85 gCO₂/kWh.

The highest demand period was 35.47 GW at 12:00, while the lowest carbon intensity period was 36 gCO₂/kWh at 14:30.

Key records for 14 May 2025

Highest wind10.41 GW22:30
Highest solar13.53 GW12:30
Highest gas8.25 GW19:30
Lowest carbon36 gCO₂/kWh14:30
Highest imports6.22 GW12:00
Highest exports2.15 GW00:00

Daily chart

Demand, generation and carbon intensity

14 May 2025

Generation mix

Wind, solar, gas and interconnector flow