Electricity Live

Great Britain’s electricity on Friday 5 September 2025

On Friday 5 September, demand averaged 27.5 GW. Renewables supplied 31%.

27.5GW AVERAGEWind5.68 GW19%Hydro0.30 GW1%Biomass3.09 GW10%Solar3.25 GW11%Gas8.25 GW28%Imports5.68 GW19%Nuclear3.57 GW12%27.5GW AVERAGE19%10%11%28%19%12%
Price
£80.80/MWh
Day average £80.80
Demand27.5GW
Generation 24.1Transfers 3.4
Fossil fuels28%
Renewables31%
Other41%
Carbon intensityModerate
141g/kWh
0Day average 141300
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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 Friday 5 September 2025, gas supplied 28% of Great Britain’s electricity and wind 19%. Demand peaked at 33.4 GW at 12:40. Carbon intensity averaged 141 g/kWh and the price £80.80/MWh. Wind generation peaked at 8.1 GW at 00:40. Solar generation peaked at 9.9 GW at 12:30. Carbon intensity was lowest at 13:30 (97 g/kWh) and highest at 19:00 (208 g/kWh). The wholesale price ranged from £65.65/MWh at 04:30 to £124.59/MWh at 19:00. 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 3.2510.9%Wind 5.6819.0%Gas 8.2527.7%Hydro 0.301.0%Biomass 3.0910.4%Nuclear 3.5712.0%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 27.5avgGeneration 24.1avgTransfers 3.4avg
The day in figurespeaks, averages, totals
Peak demand33.4GW · 12:40
Low 20.4 · 05:00Avg 27.50–40 GW
Made in Great Britain88%of demand
Generation 24.1Transfers 3.4 GW
Net imports79GWh
In
133 Out
55
Zero-carbon share53%of generation
Nuclear 15%Hydro 1%Wind 24%Solar 13%

Transfers · Fri 5 Sept

Interconnectors and storage

On Friday 5 September 2025, Great Britain imported 133 GWh and exported 55 GWh through its interconnectors. The most came from France (95 GWh), and the most exports went to Ireland (31 GWh).

All interconnectors

Fri 5 Sept
Imported
133GWh
Exported
55GWh
Net in
79GWh
Average net flow
3.27GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.59GWImporting

In 15.5 GWhOut 1.5 GWh

Denmark

Viking Link

Average0.40GWExporting

In 4.8 GWhOut 14.3 GWh

France

IFA · IFA2 · ElecLink

Average3.96GWImporting

In 94.9 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average1.31GWExporting

In 0.0 GWhOut 31.3 GWh

Netherlands

BritNed

Average0.01GWImporting

In 7.7 GWhOut 7.4 GWh

Norway

North Sea Link

Average0.42GWImporting

In 10.1 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.10GWGenerating

Generated 3.2 GWhPumped 0.8 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.