Electricity Live

Great Britain’s electricity on Wednesday 25 June 2025

On Wednesday 25 June, demand averaged 28.7 GW. Renewables supplied 26%.

28.7GW AVERAGEWind4.52 GW15%Hydro0.30 GW1%Biomass2.87 GW9%Solar3.05 GW10%Gas10.26 GW33%Imports5.00 GW16%Nuclear4.81 GW16%28.7GW AVERAGE15%9%10%33%16%16%
Price
£101.62/MWh
Day average £101.62
Demand28.7GW
Generation 25.8Transfers 2.9
Fossil fuels33%
Renewables26%
Other41%
Carbon intensityModerate
160g/kWh
0Day average 160300
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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 25 June 2025, gas supplied 33% of Great Britain’s electricity and nuclear 16%. Demand peaked at 34.5 GW at 12:30. Carbon intensity averaged 160 g/kWh and the price £101.62/MWh. Wind generation peaked at 8.2 GW at 00:05. Solar generation peaked at 9.2 GW at 12:30. Carbon intensity was lowest at 01:00 (100 g/kWh) and highest at 18:00 (202 g/kWh). The wholesale price ranged from £70.20/MWh at 14:30 to £168.88/MWh at 20:00. Gas made 40% 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 3.059.9%Wind 4.5214.7%Gas 10.2633.3%Hydro 0.301.0%Biomass 2.879.3%Nuclear 4.8115.6%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 28.7avgGeneration 25.8avgTransfers 2.9avg
The day in figurespeaks, averages, totals
Peak demand34.5GW · 12:30
Low 20.3 · 05:05Avg 28.70–40 GW
Made in Great Britain90%of demand
Generation 25.8Transfers 2.9 GW
Net imports66GWh
In
117 Out
51
Zero-carbon share49%of generation
Nuclear 19%Hydro 1%Wind 18%Solar 12%

Transfers · Wed 25 Jun

Interconnectors and storage

On Wednesday 25 June 2025, Great Britain imported 117 GWh and exported 51 GWh through its interconnectors. The most came from France (45 GWh), and the most exports went to Ireland (29 GWh).

All interconnectors

Wed 25 Jun
Imported
117GWh
Exported
51GWh
Net in
66GWh
Average net flow
2.75GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.18GWImporting

In 10.7 GWhOut 6.3 GWh

Denmark

Viking Link

Average0.56GWImporting

In 19.4 GWhOut 6.0 GWh

France

IFA · IFA2 · ElecLink

Average1.86GWImporting

In 44.7 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average1.22GWExporting

In 0.0 GWhOut 29.3 GWh

Netherlands

BritNed

Average0.03GWExporting

In 8.5 GWhOut 9.1 GWh

Norway

North Sea Link

Average1.40GWImporting

In 33.5 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.13GWGenerating

Generated 3.1 GWhPumped 0.0 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.