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Daily UK grid report
UK Electricity Grid Daily Report — 2 January 2025

On 2 January 2025, Britain’s electricity grid averaged 36.09 GW of grid demand, with renewables averaging 52.4% of tracked domestic generation and carbon intensity averaging 113 gCO₂/kWh. Daily UK electricity demand, generation, carbon intensity, imports, exports and key records.

Avg demand 36.09 GW

Average grid demand for this UK day.

Peak demand 45.18 GW

Highest 15-minute grid demand period.

Avg carbon 113 gCO₂/kWh

Average carbon intensity where available.

Renewables 52.4 %

Average renewable share of tracked generation.

Average grid demandDemand
36.09 GWFull-day average from available snapshots
↑ +4.09 GW vs yesterday
Peak demand18:00
45.18 GWHighest 15-minute grid demand period
↑ +6.98 GW vs yesterday
Lowest demand03:15
25.36 GWLowest 15-minute grid demand period
↓ −1.72 GW vs yesterday
Domestic generationSupply
30.50 GWTracked UK generation sources only
↑ +1.43 GW vs yesterday
Average carbonCO₂
113 gCO₂/kWhCarbon intensity average
↑ +56 g vs yesterday
Renewable shareClean
52.4 %Wind, solar, hydro and biomass
↓ −15.4 pts vs yesterday
Clean share+ Nuclear
69.9 %Renewables plus nuclear
↓ −15.4 pts vs yesterday
Net importsFlow
4.82 GWAverage imports minus exports
↑ +3.33 GW vs yesterday

Daily insight

What happened on the UK electricity grid?

On 2 January 2025, Britain’s electricity grid averaged 36.09 GW of grid demand, with renewables averaging 52.4% of tracked domestic generation and carbon intensity averaging 113 gCO₂/kWh.

The highest demand period was 45.18 GW at 18:00, while the lowest carbon intensity period was 57 gCO₂/kWh at 02:00.

Key records for 2 January 2025

Highest wind15.17 GW23:30
Highest solar5.59 GW12:00
Highest gas15.46 GW17:00
Lowest carbon57 gCO₂/kWh02:00
Highest imports6.31 GW17:15
Highest exports1.61 GW07:45

Daily chart

Demand, generation and carbon intensity

2 January 2025

Generation mix

Wind, solar, gas and interconnector flow