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Daily UK grid report
UK Electricity Grid Daily Report — 23 April 2025

On 23 April 2025, Britain’s electricity grid averaged 32.06 GW of grid demand, with renewables averaging 33.7% of tracked domestic generation and carbon intensity averaging 194 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 32.06 GW

Average grid demand for this UK day.

Peak demand 36.74 GW

Highest 15-minute grid demand period.

Avg carbon 194 gCO₂/kWh

Average carbon intensity where available.

Renewables 33.7 %

Average renewable share of tracked generation.

Average grid demandDemand
32.06 GWFull-day average from available snapshots
↑ +1.33 GW vs yesterday
Peak demand12:30
36.74 GWHighest 15-minute grid demand period
↑ +0.75 GW vs yesterday
Lowest demand03:30
25.19 GWLowest 15-minute grid demand period
↑ +2.39 GW vs yesterday
Domestic generationSupply
26.89 GWTracked UK generation sources only
↑ +1.49 GW vs yesterday
Average carbonCO₂
194 gCO₂/kWhCarbon intensity average
↑ +17 g vs yesterday
Renewable shareClean
33.7 %Wind, solar, hydro and biomass
↓ −3.5 pts vs yesterday
Clean share+ Nuclear
46.3 %Renewables plus nuclear
↓ −5.2 pts vs yesterday
Net importsFlow
3.28 GWAverage imports minus exports
↓ −0.81 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 23 April 2025, Britain’s electricity grid averaged 32.06 GW of grid demand, with renewables averaging 33.7% of tracked domestic generation and carbon intensity averaging 194 gCO₂/kWh.

The highest demand period was 36.74 GW at 12:30, while the lowest carbon intensity period was 142 gCO₂/kWh at 00:30.

Key records for 23 April 2025

Highest wind8.54 GW00:00
Highest solar7.46 GW12:30
Highest gas19.81 GW19:00
Lowest carbon142 gCO₂/kWh00:30
Highest imports7.12 GW13:00
Highest exports3.53 GW04:30

Daily chart

Demand, generation and carbon intensity

23 April 2025

Generation mix

Wind, solar, gas and interconnector flow