Electricity Live

Great Britain’s electricity on Tuesday 9 September 2025

On Tuesday 9 September, demand averaged 28.2 GW. Renewables supplied 36%.

28.2GW AVERAGEWind7.99 GW26%Hydro0.36 GW1%Biomass2.49 GW8%Solar2.89 GW9%Gas9.83 GW32%Imports4.15 GW13%Nuclear3.26 GW11%28.2GW AVERAGE26%8%9%32%13%11%
Price
£83.52/MWh
Day average £83.52
Demand28.2GW
Generation 26.8Transfers 1.4
Fossil fuels32%
Renewables36%
Other32%
Carbon intensityModerate
143g/kWh
0Day average 143300
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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 Tuesday 9 September 2025, gas supplied 32% of Great Britain’s electricity and wind 26%. Demand peaked at 34.4 GW at 12:55. Carbon intensity averaged 143 g/kWh and the price £83.52/MWh. Wind generation peaked at 14.2 GW at 22:50. Solar generation peaked at 10.1 GW at 11:30. Carbon intensity was lowest at 23:00 (63 g/kWh) and highest at 06:30 (190 g/kWh). The wholesale price ranged from £57.71/MWh at 23:00 to £109.30/MWh at 07:30. Gas made 37% 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 2.899.3%Wind 7.9925.8%Gas 9.8331.7%Hydro 0.361.1%Biomass 2.498.0%Nuclear 3.2610.5%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 28.2avgGeneration 26.8avgTransfers 1.4avg
The day in figurespeaks, averages, totals
Peak demand34.4GW · 12:55
Low 20.9 · 05:05Avg 28.20–40 GW
Made in Great Britain95%of demand
Generation 26.8Transfers 1.4 GW
Net imports33GWh
In
97 Out
64
Zero-carbon share54%of generation
Nuclear 12%Hydro 1%Wind 30%Solar 11%

Transfers · Tue 9 Sept

Interconnectors and storage

On Tuesday 9 September 2025, Great Britain imported 97 GWh and exported 64 GWh through its interconnectors. The most came from France (71 GWh), and the most exports went to Netherlands (24 GWh).

All interconnectors

Tue 9 Sept
Imported
97GWh
Exported
64GWh
Net in
33GWh
Average net flow
1.36GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.54GWExporting

In 0.7 GWhOut 13.7 GWh

Denmark

Viking Link

Average0.91GWExporting

In 0.0 GWhOut 21.8 GWh

France

IFA · IFA2 · ElecLink

Average2.95GWImporting

In 70.8 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.23GWExporting

In 0.0 GWhOut 5.4 GWh

Netherlands

BritNed

Average0.98GWExporting

In 0.0 GWhOut 23.6 GWh

Norway

North Sea Link

Average1.07GWImporting

In 25.7 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.06GWGenerating

Generated 2.4 GWhPumped 1.0 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.