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Daily UK grid report
UK Electricity Grid Daily Report — 5 March 2025

On 5 March 2025, Britain’s electricity grid averaged 36.40 GW of grid demand, with renewables averaging 62.7% of tracked domestic generation and carbon intensity averaging 96 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 36.40 GW

Average grid demand for this UK day.

Peak demand 42.64 GW

Highest 15-minute grid demand period.

Avg carbon 96 gCO₂/kWh

Average carbon intensity where available.

Renewables 62.7 %

Average renewable share of tracked generation.

Average grid demandDemand
36.40 GWFull-day average from available snapshots
↑ +0.35 GW vs yesterday
Peak demand17:00
42.64 GWHighest 15-minute grid demand period
↓ −0.14 GW vs yesterday
Lowest demand03:00
28.58 GWLowest 15-minute grid demand period
↑ +0.85 GW vs yesterday
Domestic generationSupply
32.05 GWTracked UK generation sources only
↑ +0.08 GW vs yesterday
Average carbonCO₂
96 gCO₂/kWhCarbon intensity average
↓ −30 g vs yesterday
Renewable shareClean
62.7 %Wind, solar, hydro and biomass
↑ +7.1 pts vs yesterday
Clean share+ Nuclear
75.8 %Renewables plus nuclear
↑ +6.9 pts vs yesterday
Net importsFlow
3.47 GWAverage imports minus exports
↑ +0.11 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 5 March 2025, Britain’s electricity grid averaged 36.40 GW of grid demand, with renewables averaging 62.7% of tracked domestic generation and carbon intensity averaging 96 gCO₂/kWh.

The highest demand period was 42.64 GW at 17:00, while the lowest carbon intensity period was 39 gCO₂/kWh at 13:30.

Key records for 5 March 2025

Highest wind17.18 GW20:00
Highest solar10.63 GW12:00
Highest gas14.40 GW17:30
Lowest carbon39 gCO₂/kWh13:30
Highest imports8.21 GW10:00
Highest exports3.11 GW16:45

Daily chart

Demand, generation and carbon intensity

5 March 2025

Generation mix

Wind, solar, gas and interconnector flow