Electricity Live

Great Britain’s electricity on Wednesday 13 August 2025

On Wednesday 13 August, demand averaged 29.0 GW. Renewables supplied 23%.

29.0GW AVERAGEWind3.62 GW12%Hydro0.35 GW1%Biomass2.82 GW9%Solar2.98 GW10%Gas12.35 GW41%Imports5.27 GW17%Nuclear3.00 GW10%29.0GW AVERAGE12%9%10%41%17%10%
Price
£87.28/MWh
Day average £87.28
Demand29.0GW
Generation 25.1Transfers 3.9
Fossil fuels41%
Renewables23%
Other36%
Carbon intensityHigh
189g/kWh
0Day average 189300
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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 Wednesday 13 August 2025, gas supplied 41% of Great Britain’s electricity and wind 12%. Demand peaked at 35.9 GW at 13:55. Carbon intensity averaged 189 g/kWh and the price £87.28/MWh. Wind generation peaked at 7.8 GW at 23:25. Solar generation peaked at 9.6 GW at 13:30. Carbon intensity was lowest at 13:00 (144 g/kWh) and highest at 05:30 (222 g/kWh). The wholesale price ranged from £73.12/MWh at 23:00 to £110.86/MWh at 18:00. Gas made 49% 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 2.989.8%Wind 3.6211.9%Gas 12.3540.6%Hydro 0.351.2%Biomass 2.829.3%Nuclear 3.009.9%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 29.0avgGeneration 25.1avgTransfers 3.9avg
The day in figurespeaks, averages, totals
Peak demand35.9GW · 13:55
Low 21.1 · 04:35Avg 29.00–40 GW
Made in Great Britain87%of demand
Generation 25.1Transfers 3.9 GW
Net imports91GWh
In
125 Out
34
Zero-carbon share40%of generation
Nuclear 12%Hydro 1%Wind 14%Solar 12%

Transfers · Wed 13 Aug

Interconnectors and storage

On Wednesday 13 August 2025, Great Britain imported 125 GWh and exported 34 GWh through its interconnectors. The most came from France (64 GWh), and the most exports went to Ireland (18 GWh).

All interconnectors

Wed 13 Aug
Imported
125GWh
Exported
34GWh
Net in
91GWh
Average net flow
3.81GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.37GWImporting

In 10.7 GWhOut 1.7 GWh

Denmark

Viking Link

Average0.06GWImporting

In 8.8 GWhOut 7.4 GWh

France

IFA · IFA2 · ElecLink

Average2.67GWImporting

In 64.1 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.75GWExporting

In 0.0 GWhOut 17.9 GWh

Netherlands

BritNed

Average0.06GWImporting

In 8.0 GWhOut 6.6 GWh

Norway

North Sea Link

Average1.39GWImporting

In 33.4 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.05GWGenerating

Generated 1.5 GWhPumped 0.4 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.