Electricity Live

Great Britain’s electricity on Tuesday 2 September 2025

On Tuesday 2 September, demand averaged 28.3 GW. Renewables supplied 35%.

28.3GW AVERAGEWind8.29 GW27%Hydro0.37 GW1%Biomass2.30 GW8%Solar2.17 GW7%Gas8.95 GW29%Imports4.65 GW15%Nuclear3.91 GW13%28.3GW AVERAGE27%8%7%29%15%13%
Price
£81.14/MWh
Day average £81.14
Demand28.3GW
Generation 26.0Transfers 2.3
Fossil fuels29%
Renewables35%
Other35%
Carbon intensityModerate
138g/kWh
0Day average 138300
Save as image
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 Tuesday 2 September 2025, gas supplied 29% of Great Britain’s electricity and wind 27%. Demand peaked at 34.5 GW at 12:20. Carbon intensity averaged 138 g/kWh and the price £81.14/MWh. Wind generation peaked at 12.8 GW at 00:00. Solar generation peaked at 6.9 GW at 11:00. Carbon intensity was lowest at 00:30 (73 g/kWh) and highest at 18:00 (184 g/kWh). The wholesale price ranged from £64.11/MWh at 10:00 to £107.06/MWh at 18:00. Gas made 34% of the electricity generated in Great Britain, compared with 32% across 2025.

Charts

Generation, demand, price and carbon

Generation by sourceGW · daily average below
Solar 2.177.1%Wind 8.2927.1%Gas 8.9529.2%Hydro 0.371.2%Biomass 2.307.5%Nuclear 3.9112.8%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 28.3avgGeneration 26.0avgTransfers 2.3avg
The day in figurespeaks, averages, totals
Peak demand34.5GW · 12:20
Low 19.9 · 04:15Avg 28.30–40 GW
Made in Great Britain92%of demand
Generation 26.0Transfers 2.3 GW
Net imports53GWh
In
110 Out
57
Zero-carbon share57%of generation
Nuclear 15%Hydro 1%Wind 32%Solar 8%

Transfers · Tue 2 Sept

Interconnectors and storage

On Tuesday 2 September 2025, Great Britain imported 110 GWh and exported 57 GWh through its interconnectors. The most came from France (83 GWh), and the most exports went to Ireland (33 GWh).

All interconnectors

Tue 2 Sept
Imported
110GWh
Exported
57GWh
Net in
53GWh
Average net flow
2.22GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.60GWImporting

In 14.4 GWhOut 0.0 GWh

Denmark

Viking Link

Average0.48GWExporting

In 4.6 GWhOut 16.1 GWh

France

IFA · IFA2 · ElecLink

Average3.44GWImporting

In 82.6 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average1.39GWExporting

In 0.0 GWhOut 33.4 GWh

Netherlands

BritNed

Average0.05GWImporting

In 8.6 GWhOut 7.3 GWh

Norway

North Sea Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.05GWGenerating

Generated 1.4 GWhPumped 0.2 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.