Electricity Live

Great Britain’s electricity on Thursday 31 July 2025

On Thursday 31 July, demand averaged 27.4 GW. Renewables supplied 33%.

27.4GW AVERAGEWind6.59 GW23%Hydro0.23 GW1%Biomass2.99 GW10%Solar2.71 GW9%Gas6.58 GW23%Imports5.90 GW20%Nuclear4.10 GW14%27.4GW AVERAGE23%10%9%23%20%14%
Price
£82.61/MWh
Day average £82.61
Demand27.4GW
Generation 23.2Transfers 4.2
Fossil fuels23%
Renewables33%
Other45%
Carbon intensityModerate
119g/kWh
0Day average 119300
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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 Thursday 31 July 2025, wind supplied 23% of Great Britain’s electricity and gas 23%. Demand peaked at 33.5 GW at 12:25. Carbon intensity averaged 119 g/kWh and the price £82.61/MWh. Wind generation peaked at 8.2 GW at 17:20. Solar generation peaked at 7.9 GW at 14:30. Carbon intensity was lowest at 13:30 (80 g/kWh) and highest at 20:30 (149 g/kWh). The wholesale price ranged from £64.67/MWh at 13:30 to £108.98/MWh at 19:00. Wind made 28% 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 2.719.3%Wind 6.5922.7%Gas 6.5822.6%Hydro 0.230.8%Biomass 2.9910.3%Nuclear 4.1014.1%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 27.4avgGeneration 23.2avgTransfers 4.2avg
The day in figurespeaks, averages, totals
Peak demand33.5GW · 12:25
Low 19.8 · 05:05Avg 27.40–40 GW
Made in Great Britain85%of demand
Generation 23.2Transfers 4.2 GW
Net imports104GWh
In
142 Out
37
Zero-carbon share59%of generation
Nuclear 18%Hydro 1%Wind 28%Solar 12%

Transfers · Thu 31 Jul

Interconnectors and storage

On Thursday 31 July 2025, Great Britain imported 142 GWh and exported 37 GWh through its interconnectors. The most came from France (78 GWh), and the most exports went to Ireland (20 GWh).

All interconnectors

Thu 31 Jul
Imported
142GWh
Exported
37GWh
Net in
104GWh
Average net flow
4.35GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.30GWImporting

In 10.7 GWhOut 3.5 GWh

Denmark

Viking Link

Average0.41GWImporting

In 13.6 GWhOut 3.7 GWh

France

IFA · IFA2 · ElecLink

Average3.23GWImporting

In 77.5 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.82GWExporting

In 0.0 GWhOut 19.6 GWh

Netherlands

BritNed

Average0.17GWExporting

In 6.3 GWhOut 10.3 GWh

Norway

North Sea Link

Average1.39GWImporting

In 33.5 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.13GWPumping

Generated 0.1 GWhPumped 3.2 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.