Electricity Live

Great Britain’s electricity on Monday 18 August 2025

On Monday 18 August, demand averaged 27.0 GW. Renewables supplied 18%.

27.0GW AVERAGEWind3.44 GW12%Hydro0.35 GW1%Biomass3.28 GW11%Solar1.53 GW5%Gas11.39 GW39%Imports6.02 GW21%Nuclear2.99 GW10%27.0GW AVERAGE12%11%39%21%10%
Price
£89.35/MWh
Day average £89.35
Demand27.0GW
Generation 23.0Transfers 4.0
Fossil fuels39%
Renewables18%
Other42%
Carbon intensityHigh
187g/kWh
0Day average 187300
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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 18 August 2025, gas supplied 39% of Great Britain’s electricity and wind 12%. Demand peaked at 32.8 GW at 14:05. Carbon intensity averaged 187 g/kWh and the price £89.35/MWh. Wind generation peaked at 4.7 GW at 00:00. Solar generation peaked at 4.9 GW at 13:00. Carbon intensity was lowest at 00:00 (167 g/kWh) and highest at 20:30 (219 g/kWh). The wholesale price ranged from £73.14/MWh at 01:00 to £105.46/MWh at 19:30. Gas made 50% 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 1.535.3%Wind 3.4411.8%Gas 11.3939.3%Hydro 0.351.2%Biomass 3.2811.3%Nuclear 2.9910.3%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 27.0avgGeneration 23.0avgTransfers 4.0avg
The day in figurespeaks, averages, totals
Peak demand32.8GW · 14:05
Low 19.7 · 04:05Avg 27.00–40 GW
Made in Great Britain85%of demand
Generation 23.0Transfers 4.0 GW
Net imports95GWh
In
142 Out
47
Zero-carbon share36%of generation
Nuclear 13%Hydro 2%Wind 15%Solar 7%

Transfers · Mon 18 Aug

Interconnectors and storage

On Monday 18 August 2025, Great Britain imported 142 GWh and exported 47 GWh through its interconnectors. The most came from France (90 GWh), and the most exports went to Ireland (29 GWh).

All interconnectors

Mon 18 Aug
Imported
142GWh
Exported
47GWh
Net in
95GWh
Average net flow
3.97GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.37GWImporting

In 9.7 GWhOut 0.9 GWh

Denmark

Viking Link

Average0.12GWExporting

In 8.4 GWhOut 11.3 GWh

France

IFA · IFA2 · ElecLink

Average3.75GWImporting

In 89.9 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average1.20GWExporting

In 0.0 GWhOut 28.8 GWh

Netherlands

BritNed

Average0.20GWImporting

In 10.6 GWhOut 5.8 GWh

Norway

North Sea Link

Average0.98GWImporting

In 23.6 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.06GWGenerating

Generated 2.2 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.