Electricity Live

Great Britain’s electricity on Wednesday 30 July 2025

On Wednesday 30 July, demand averaged 27.2 GW. Renewables supplied 24%.

27.2GW AVERAGEWind3.57 GW12%Hydro0.23 GW1%Biomass3.02 GW11%Solar2.98 GW10%Gas8.33 GW29%Imports6.43 GW22%Nuclear4.11 GW14%27.2GW AVERAGE12%11%10%29%22%14%
Price
£79.92/MWh
Day average £79.92
Demand27.2GW
Generation 22.2Transfers 5.0
Fossil fuels29%
Renewables24%
Other47%
Carbon intensityModerate
150g/kWh
0Day average 150300
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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 30 July 2025, gas supplied 29% of Great Britain’s electricity and nuclear 14%. Demand peaked at 32.3 GW at 12:45. Carbon intensity averaged 150 g/kWh and the price £79.92/MWh. Wind generation peaked at 5.8 GW at 21:05. Solar generation peaked at 8.4 GW at 12:30. Carbon intensity was lowest at 23:30 (116 g/kWh) and highest at 20:30 (178 g/kWh). The wholesale price ranged from £69.07/MWh at 04:30 to £100.64/MWh at 19:30. Gas made 37% 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 2.9810.4%Wind 3.5712.5%Gas 8.3329.1%Hydro 0.230.8%Biomass 3.0210.6%Nuclear 4.1114.3%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 27.2avgGeneration 22.2avgTransfers 5.0avg
The day in figurespeaks, averages, totals
Peak demand32.3GW · 12:45
Low 19.9 · 05:05Avg 27.20–40 GW
Made in Great Britain82%of demand
Generation 22.2Transfers 5.0 GW
Net imports119GWh
In
154 Out
34
Zero-carbon share49%of generation
Nuclear 18%Hydro 1%Wind 16%Solar 13%

Transfers · Wed 30 Jul

Interconnectors and storage

On Wednesday 30 July 2025, Great Britain imported 154 GWh and exported 34 GWh through its interconnectors. The most came from France (68 GWh), and the most exports went to Ireland (28 GWh).

All interconnectors

Wed 30 Jul
Imported
154GWh
Exported
34GWh
Net in
119GWh
Average net flow
4.97GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.78GWImporting

In 19.0 GWhOut 0.2 GWh

Denmark

Viking Link

Average0.89GWImporting

In 21.4 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average2.85GWImporting

In 68.4 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average1.17GWExporting

In 0.0 GWhOut 28.1 GWh

Netherlands

BritNed

Average0.23GWImporting

In 11.5 GWhOut 6.1 GWh

Norway

North Sea Link

Average1.40GWImporting

In 33.5 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.02GWGenerating

Generated 0.5 GWhPumped 0.1 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.