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Daily UK grid report
UK Electricity Grid Daily Report — 12 April 2025

On 12 April 2025, Britain’s electricity grid averaged 27.92 GW of grid demand, with renewables averaging 53.1% of tracked domestic generation and carbon intensity averaging 99 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 27.92 GW

Average grid demand for this UK day.

Peak demand 32.69 GW

Highest 15-minute grid demand period.

Avg carbon 99 gCO₂/kWh

Average carbon intensity where available.

Renewables 53.1 %

Average renewable share of tracked generation.

Average grid demandDemand
27.92 GWFull-day average from available snapshots
↓ −3.17 GW vs yesterday
Peak demand13:00
32.69 GWHighest 15-minute grid demand period
↓ −3.58 GW vs yesterday
Lowest demand04:15
21.73 GWLowest 15-minute grid demand period
↓ −3.01 GW vs yesterday
Domestic generationSupply
21.69 GWTracked UK generation sources only
↓ −3.94 GW vs yesterday
Average carbonCO₂
99 gCO₂/kWhCarbon intensity average
↓ −38 g vs yesterday
Renewable shareClean
53.1 %Wind, solar, hydro and biomass
↑ +7.8 pts vs yesterday
Clean share+ Nuclear
74.4 %Renewables plus nuclear
↑ +11.2 pts vs yesterday
Net importsFlow
5.49 GWAverage imports minus exports
↑ +1.52 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 12 April 2025, Britain’s electricity grid averaged 27.92 GW of grid demand, with renewables averaging 53.1% of tracked domestic generation and carbon intensity averaging 99 gCO₂/kWh.

The highest demand period was 32.69 GW at 13:00, while the lowest carbon intensity period was 43 gCO₂/kWh at 15:00.

Key records for 12 April 2025

Highest wind10.94 GW16:00
Highest solar10.90 GW12:30
Highest gas8.29 GW00:00
Lowest carbon43 gCO₂/kWh15:00
Highest imports7.81 GW21:45
Highest exports1.73 GW13:15

Daily chart

Demand, generation and carbon intensity

12 April 2025

Generation mix

Wind, solar, gas and interconnector flow