Electricity Live

Great Britain’s electricity on Tuesday 15 July 2025

On Tuesday 15 July, demand averaged 28.0 GW. Renewables supplied 44%.

28.0GW AVERAGEWind10.67 GW36%Hydro0.23 GW1%Biomass2.98 GW10%Solar2.21 GW7%Gas3.51 GW12%Imports5.73 GW19%Nuclear4.15 GW14%28.0GW AVERAGE36%10%7%12%19%14%
Price
£82.10/MWh
Day average £82.10
Demand28.0GW
Generation 23.8Transfers 4.2
Fossil fuels12%
Renewables44%
Other44%
Carbon intensityLow
78g/kWh
0Day average 78300
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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 Tuesday 15 July 2025, wind supplied 36% of Great Britain’s electricity and nuclear 14%. Demand peaked at 34.9 GW at 13:55. Carbon intensity averaged 78 g/kWh and the price £82.10/MWh. Wind generation peaked at 14.4 GW at 14:10. Solar generation peaked at 6.0 GW at 13:30. Carbon intensity was lowest at 13:30 (48 g/kWh) and highest at 21:00 (106 g/kWh). The wholesale price ranged from £36.56/MWh at 15:00 to £104.82/MWh at 06:30. Wind made 45% 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 2.217.5%Wind 10.6736.2%Gas 3.5111.9%Hydro 0.230.8%Biomass 2.9810.1%Nuclear 4.1514.1%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 28.0avgGeneration 23.8avgTransfers 4.2avg
The day in figurespeaks, averages, totals
Peak demand34.9GW · 13:55
Low 20.4 · 04:05Avg 28.00–40 GW
Made in Great Britain85%of demand
Generation 23.8Transfers 4.2 GW
Net imports103GWh
In
137 Out
34
Zero-carbon share73%of generation
Nuclear 17%Hydro 1%Wind 45%Solar 9%

Transfers · Tue 15 Jul

Interconnectors and storage

On Tuesday 15 July 2025, Great Britain imported 137 GWh and exported 34 GWh through its interconnectors. The most came from France (79 GWh), and the most exports went to Denmark (11 GWh).

All interconnectors

Tue 15 Jul
Imported
137GWh
Exported
34GWh
Net in
103GWh
Average net flow
4.30GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.24GWImporting

In 7.5 GWhOut 1.7 GWh

Denmark

Viking Link

Average0.19GWExporting

In 6.9 GWhOut 11.4 GWh

France

IFA · IFA2 · ElecLink

Average3.28GWImporting

In 78.8 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.36GWExporting

In 0.9 GWhOut 9.5 GWh

Netherlands

BritNed

Average0.08GWExporting

In 9.2 GWhOut 11.0 GWh

Norway

North Sea Link

Average1.39GWImporting

In 33.5 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.05GWPumping

Generated 0.8 GWhPumped 2.0 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.