Electricity Live

Great Britain’s electricity on Wednesday 23 July 2025

On Wednesday 23 July, demand averaged 27.5 GW. Renewables supplied 23%.

27.5GW AVERAGEWind3.68 GW13%Hydro0.36 GW1%Biomass2.26 GW8%Solar2.61 GW9%Gas8.38 GW29%Imports6.86 GW24%Nuclear4.47 GW16%27.5GW AVERAGE13%8%9%29%24%16%
Price
£85.52/MWh
Day average £85.52
Demand27.5GW
Generation 21.8Transfers 5.7
Fossil fuels29%
Renewables23%
Other47%
Carbon intensityModerate
149g/kWh
0Day average 149300
Save as image
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 23 July 2025, gas supplied 29% of Great Britain’s electricity and nuclear 16%. Demand peaked at 33.1 GW at 11:00. Carbon intensity averaged 149 g/kWh and the price £85.52/MWh. Wind generation peaked at 5.4 GW at 23:50. Solar generation peaked at 7.4 GW at 11:00. Carbon intensity was lowest at 12:00 (130 g/kWh) and highest at 20:30 (177 g/kWh). The wholesale price ranged from £68.76/MWh at 01:30 to £109.82/MWh at 18:30. Gas made 39% 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 2.619.1%Wind 3.6812.9%Gas 8.3829.3%Hydro 0.361.2%Biomass 2.267.9%Nuclear 4.4715.6%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 27.5avgGeneration 21.8avgTransfers 5.7avg
The day in figurespeaks, averages, totals
Peak demand33.1GW · 11:00
Low 20.0 · 05:00Avg 27.50–40 GW
Made in Great Britain79%of demand
Generation 21.8Transfers 5.7 GW
Net imports135GWh
In
162 Out
27
Zero-carbon share51%of generation
Nuclear 21%Hydro 2%Wind 17%Solar 12%

Transfers · Wed 23 Jul

Interconnectors and storage

On Wednesday 23 July 2025, Great Britain imported 162 GWh and exported 27 GWh through its interconnectors. The most came from France (83 GWh), and the most exports went to Ireland (22 GWh).

All interconnectors

Wed 23 Jul
Imported
162GWh
Exported
27GWh
Net in
135GWh
Average net flow
5.61GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.44GWImporting

In 12.3 GWhOut 1.7 GWh

Denmark

Viking Link

Average0.78GWImporting

In 20.0 GWhOut 1.2 GWh

France

IFA · IFA2 · ElecLink

Average3.45GWImporting

In 82.8 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.90GWExporting

In 0.0 GWhOut 21.7 GWh

Netherlands

BritNed

Average0.44GWImporting

In 13.0 GWhOut 2.4 GWh

Norway

North Sea Link

Average1.39GWImporting

In 33.5 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.09GWGenerating

Generated 3.0 GWhPumped 1.0 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.