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Daily UK grid report
UK Electricity Grid Daily Report — 16 May 2025

On 16 May 2025, Britain’s electricity grid averaged 29.86 GW of grid demand, with renewables averaging 56.2% of tracked domestic generation and carbon intensity averaging 80 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 29.86 GW

Average grid demand for this UK day.

Peak demand 35.01 GW

Highest 15-minute grid demand period.

Avg carbon 80 gCO₂/kWh

Average carbon intensity where available.

Renewables 56.2 %

Average renewable share of tracked generation.

Average grid demandDemand
29.86 GWFull-day average from available snapshots
↓ −0.25 GW vs yesterday
Peak demand13:00
35.01 GWHighest 15-minute grid demand period
↑ +0.75 GW vs yesterday
Lowest demand03:15
23.72 GWLowest 15-minute grid demand period
↓ −0.21 GW vs yesterday
Domestic generationSupply
24.95 GWTracked UK generation sources only
↓ −0.02 GW vs yesterday
Average carbonCO₂
80 gCO₂/kWhCarbon intensity average
↓ −17 g vs yesterday
Renewable shareClean
56.2 %Wind, solar, hydro and biomass
↑ +4.9 pts vs yesterday
Clean share+ Nuclear
77.6 %Renewables plus nuclear
↑ +5.1 pts vs yesterday
Net importsFlow
3.50 GWAverage imports minus exports
↓ −0.17 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 16 May 2025, Britain’s electricity grid averaged 29.86 GW of grid demand, with renewables averaging 56.2% of tracked domestic generation and carbon intensity averaging 80 gCO₂/kWh.

The highest demand period was 35.01 GW at 13:00, while the lowest carbon intensity period was 27 gCO₂/kWh at 12:30.

Key records for 16 May 2025

Highest wind10.99 GW19:00
Highest solar13.09 GW13:00
Highest gas8.01 GW21:30
Lowest carbon27 gCO₂/kWh12:30
Highest imports5.76 GW10:00
Highest exports2.28 GW06:45

Daily chart

Demand, generation and carbon intensity

16 May 2025

Generation mix

Wind, solar, gas and interconnector flow