Electricity Live

Great Britain’s electricity on Tuesday 29 July 2025

On Tuesday 29 July, demand averaged 27.0 GW. Renewables supplied 14%.

27.0GW AVERAGEWind1.46 GW5%Hydro0.24 GW1%Biomass2.80 GW10%Solar2.22 GW8%Gas9.80 GW35%Imports7.23 GW26%Nuclear4.10 GW15%27.0GW AVERAGE10%8%35%26%15%
Price
£81.99/MWh
Day average £81.99
Demand27.0GW
Generation 20.6Transfers 6.3
Fossil fuels35%
Renewables14%
Other51%
Carbon intensityModerate
177g/kWh
0Day average 177300
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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 29 July 2025, gas supplied 35% of Great Britain’s electricity and nuclear 15%. Demand peaked at 32.6 GW at 12:30. Carbon intensity averaged 177 g/kWh and the price £81.99/MWh. Wind generation peaked at 2.5 GW at 23:50. Solar generation peaked at 6.6 GW at 12:30. Carbon intensity was lowest at 02:30 (147 g/kWh) and highest at 07:30 (205 g/kWh). The wholesale price ranged from £66.22/MWh at 03:00 to £111.49/MWh at 19:00. Gas made 48% 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 2.228.0%Wind 1.465.3%Gas 9.8035.2%Hydro 0.240.9%Biomass 2.8010.1%Nuclear 4.1014.7%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 27.0avgGeneration 20.6avgTransfers 6.3avg
The day in figurespeaks, averages, totals
Peak demand32.6GW · 12:30
Low 19.7 · 05:05Avg 27.00–40 GW
Made in Great Britain76%of demand
Generation 20.6Transfers 6.3 GW
Net imports151GWh
In
172 Out
21
Zero-carbon share39%of generation
Nuclear 20%Hydro 1%Wind 7%Solar 11%

Transfers · Tue 29 Jul

Interconnectors and storage

On Tuesday 29 July 2025, Great Britain imported 172 GWh and exported 21 GWh through its interconnectors. The most came from France (79 GWh), and the most exports went to Ireland (15 GWh).

All interconnectors

Tue 29 Jul
Imported
172GWh
Exported
21GWh
Net in
151GWh
Average net flow
6.30GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.85GWImporting

In 20.7 GWhOut 0.4 GWh

Denmark

Viking Link

Average1.17GWImporting

In 28.1 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average3.28GWImporting

In 78.8 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.63GWExporting

In 0.0 GWhOut 15.2 GWh

Netherlands

BritNed

Average0.24GWImporting

In 10.9 GWhOut 5.3 GWh

Norway

North Sea Link

Average1.40GWImporting

In 33.5 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.04GWGenerating

Generated 1.5 GWhPumped 0.6 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.