Electricity Live

Great Britain’s electricity on Monday 1 September 2025

On Monday 1 September, demand averaged 28.4 GW. Renewables supplied 62%.

28.4GW AVERAGEWind16.78 GW53%Hydro0.24 GW1%Biomass0.99 GW3%Solar2.78 GW9%Gas4.27 GW13%Imports3.03 GW10%Nuclear3.74 GW12%28.4GW AVERAGE53%9%13%10%12%
Price
£50.95/MWh
Day average £50.95
Demand28.4GW
Generation 28.8Transfers −0.4
Fossil fuels13%
Renewables62%
Other24%
Carbon intensityLow
67g/kWh
0Day average 67300
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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 Monday 1 September 2025, wind supplied 53% of Great Britain’s electricity and gas 13%. Demand peaked at 35.5 GW at 12:10. Carbon intensity averaged 67 g/kWh and the price £50.95/MWh. Wind generation peaked at 18.9 GW at 15:20. Solar generation peaked at 9.7 GW at 13:30. Carbon intensity was lowest at 14:00 (38 g/kWh) and highest at 19:00 (105 g/kWh). The wholesale price ranged from £4.30/MWh at 13:30 to £95.16/MWh at 20:00. Wind made 58% 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 2.788.7%Wind 16.7852.7%Gas 4.2713.4%Hydro 0.240.7%Biomass 0.993.1%Nuclear 3.7411.8%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 28.4avgGeneration 28.8avgTransfers −0.4avg
The day in figurespeaks, averages, totals
Peak demand35.5GW · 12:10
Low 20.9 · 04:00Avg 28.40–40 GW
Made in Great Britain102%of demand
Generation 28.8Transfers −0.4 GW
Net exports7GWh
In
72 Out
79
Zero-carbon share82%of generation
Nuclear 13%Hydro 1%Wind 58%Solar 10%

Transfers · Mon 1 Sept

Interconnectors and storage

On Monday 1 September 2025, Great Britain imported 72 GWh and exported 79 GWh through its interconnectors. The most came from France (68 GWh), and the most exports went to Denmark (26 GWh).

All interconnectors

Mon 1 Sept
Imported
72GWh
Exported
79GWh
Net out
7GWh
Average net flow
0.31GW out

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.28GWExporting

In 3.6 GWhOut 10.4 GWh

Denmark

Viking Link

Average1.08GWExporting

In 0.0 GWhOut 26.0 GWh

France

IFA · IFA2 · ElecLink

Average2.84GWImporting

In 68.2 GWhOut 0.1 GWh

Ireland

Moyle · East–West · Greenlink

Average0.89GWExporting

In 0.0 GWhOut 21.3 GWh

Netherlands

BritNed

Average0.89GWExporting

In 0.0 GWhOut 21.5 GWh

Norway

North Sea Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.13GWPumping

Generated 0.8 GWhPumped 3.9 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.