Electricity Live

Great Britain’s electricity on Wednesday 3 September 2025

On Wednesday 3 September, demand averaged 28.6 GW. Renewables supplied 42%.

28.6GW AVERAGEWind10.43 GW35%Hydro0.41 GW1%Biomass2.89 GW10%Solar1.86 GW6%Gas5.10 GW17%Imports5.30 GW18%Nuclear4.01 GW13%28.6GW AVERAGE35%10%17%18%13%
Price
£90.20/MWh
Day average £90.20
Demand28.6GW
Generation 24.7Transfers 3.9
Fossil fuels17%
Renewables42%
Other41%
Carbon intensityModerate
107g/kWh
0Day average 107300
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Recorded half-hourRecorded half-hourRecorded half-hourRecorded half-hourRecorded half-hourRecorded half-hourRecorded half-hourRecorded half-hourRecorded half-hourRecorded half-hourRecorded half-hour

Key moments

On Wednesday 3 September 2025, wind supplied 35% of Great Britain’s electricity and gas 17%. Demand peaked at 35.1 GW at 11:55. Carbon intensity averaged 107 g/kWh and the price £90.20/MWh. Wind generation peaked at 13.7 GW at 23:25. Solar generation peaked at 6.1 GW at 14:30. Carbon intensity was lowest at 23:30 (69 g/kWh) and highest at 08:00 (142 g/kWh). The wholesale price ranged from £65.85/MWh at 23:30 to £115.14/MWh at 10:00. Wind made 42% of the electricity generated in Great Britain, compared with 35% across 2025.

Charts

Generation, demand, price and carbon

Generation by sourceGW · daily average below
Solar 1.866.2%Wind 10.4334.7%Gas 5.1017.0%Hydro 0.411.4%Biomass 2.899.6%Nuclear 4.0113.4%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 28.6avgGeneration 24.7avgTransfers 3.9avg
The day in figurespeaks, averages, totals
Peak demand35.1GW · 11:55
Low 20.7 · 05:00Avg 28.60–40 GW
Made in Great Britain86%of demand
Generation 24.7Transfers 3.9 GW
Net imports93GWh
In
125 Out
33
Zero-carbon share68%of generation
Nuclear 16%Hydro 2%Wind 42%Solar 8%

Transfers · Wed 3 Sept

Interconnectors and storage

On Wednesday 3 September 2025, Great Britain imported 125 GWh and exported 33 GWh through its interconnectors. The most came from France (68 GWh), and the most exports went to Ireland (32 GWh).

All interconnectors

Wed 3 Sept
Imported
125GWh
Exported
33GWh
Net in
93GWh
Average net flow
3.86GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.45GWImporting

In 10.9 GWhOut 0.0 GWh

Denmark

Viking Link

Average1.00GWImporting

In 24.2 GWhOut 0.3 GWh

France

IFA · IFA2 · ElecLink

Average2.83GWImporting

In 67.9 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average1.34GWExporting

In 0.0 GWhOut 32.3 GWh

Netherlands

BritNed

Average0.93GWImporting

In 22.4 GWhOut 0.1 GWh

Norway

North Sea Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.01GWGenerating

Generated 1.7 GWhPumped 1.4 GWh

All cards share one scale, so you can compare their heights. Each country can have more than one cable.

Download the 5-minute data for this day: CSV · JSON. See what the figures mean.