Electricity Live

Great Britain’s electricity on Sunday 7 September 2025

On Sunday 7 September, demand averaged 26.6 GW. Renewables supplied 61%.

26.6GW AVERAGEWind16.29 GW54%Hydro0.15 GW0%Biomass1.22 GW4%Solar1.77 GW6%Gas3.43 GW11%Imports3.85 GW13%Nuclear3.26 GW11%26.6GW AVERAGE54%11%13%11%
Price
£28.81/MWh
Day average £28.81
Demand26.6GW
Generation 26.1Transfers 0.5
Fossil fuels11%
Renewables61%
Other28%
Carbon intensityLow
66g/kWh
0Day average 66300
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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 Sunday 7 September 2025, wind supplied 54% of Great Britain’s electricity and gas 11%. Demand peaked at 33.1 GW at 16:25. Carbon intensity averaged 66 g/kWh and the price £28.81/MWh. Wind generation peaked at 19.8 GW at 00:00. Solar generation peaked at 6.3 GW at 11:30. Carbon intensity was lowest at 11:30 (58 g/kWh) and highest at 19:30 (86 g/kWh). The wholesale price ranged from −£1.35/MWh at 12:00 to £83.73/MWh at 21:00. The price was below zero for 1.5 hours. Wind made 62% 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 1.775.9%Wind 16.2954.3%Gas 3.4311.4%Hydro 0.150.5%Biomass 1.224.1%Nuclear 3.2610.9%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 26.6avgGeneration 26.1avgTransfers 0.5avg
The day in figurespeaks, averages, totals
Peak demand33.1GW · 16:25
Low 20.0 · 04:50Avg 26.60–40 GW
Made in Great Britain98%of demand
Generation 26.1Transfers 0.5 GW
Net imports18GWh
In
92 Out
74
Zero-carbon share82%of generation
Nuclear 12%Hydro 1%Wind 62%Solar 7%

Transfers · Sun 7 Sept

Interconnectors and storage

On Sunday 7 September 2025, Great Britain imported 92 GWh and exported 74 GWh through its interconnectors. The most came from France (59 GWh), and the most exports went to Ireland (23 GWh).

All interconnectors

Sun 7 Sept
Imported
92GWh
Exported
74GWh
Net in
18GWh
Average net flow
0.74GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.06GWImporting

In 9.2 GWhOut 7.8 GWh

Denmark

Viking Link

Average0.16GWExporting

In 6.7 GWhOut 10.5 GWh

France

IFA · IFA2 · ElecLink

Average2.32GWImporting

In 58.7 GWhOut 3.1 GWh

Ireland

Moyle · East–West · Greenlink

Average0.86GWExporting

In 2.0 GWhOut 22.6 GWh

Netherlands

BritNed

Average0.12GWExporting

In 7.4 GWhOut 10.2 GWh

Norway

North Sea Link

Average0.50GWExporting

In 7.9 GWhOut 20.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.23GWPumping

Generated 0.5 GWhPumped 6.0 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.