Electricity Live

Great Britain’s electricity on Friday 15 August 2025

On Friday 15 August, demand averaged 28.2 GW. Renewables supplied 29%.

28.2GW AVERAGEWind4.53 GW15%Hydro0.28 GW1%Biomass2.97 GW10%Solar3.92 GW13%Gas8.35 GW28%Imports6.74 GW23%Nuclear2.99 GW10%28.2GW AVERAGE15%10%13%28%23%10%
Price
£79.33/MWh
Day average £79.33
Demand28.2GW
Generation 23.1Transfers 5.2
Fossil fuels28%
Renewables29%
Other43%
Carbon intensityModerate
147g/kWh
0Day average 147300
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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 Friday 15 August 2025, gas supplied 28% of Great Britain’s electricity and wind 15%. Demand peaked at 34.1 GW at 12:00. Carbon intensity averaged 147 g/kWh and the price £79.33/MWh. Wind generation peaked at 5.6 GW at 01:05. Solar generation peaked at 12.0 GW at 12:00. Carbon intensity was lowest at 13:00 (87 g/kWh) and highest at 19:30 (187 g/kWh). The wholesale price ranged from £63.35/MWh at 13:00 to £102.18/MWh at 19:30. Gas made 36% 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 3.9213.2%Wind 4.5315.2%Gas 8.3528.0%Hydro 0.281.0%Biomass 2.9710.0%Nuclear 2.9910.0%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 28.2avgGeneration 23.1avgTransfers 5.2avg
The day in figurespeaks, averages, totals
Peak demand34.1GW · 12:00
Low 21.3 · 04:45Avg 28.20–40 GW
Made in Great Britain82%of demand
Generation 23.1Transfers 5.2 GW
Net imports125GWh
In
161 Out
36
Zero-carbon share51%of generation
Nuclear 13%Hydro 1%Wind 20%Solar 17%

Transfers · Fri 15 Aug

Interconnectors and storage

On Friday 15 August 2025, Great Britain imported 161 GWh and exported 36 GWh through its interconnectors. The most came from France (95 GWh), and the most exports went to Ireland (27 GWh).

All interconnectors

Fri 15 Aug
Imported
161GWh
Exported
36GWh
Net in
125GWh
Average net flow
5.22GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.42GWImporting

In 10.1 GWhOut 0.0 GWh

Denmark

Viking Link

Average0.48GWImporting

In 16.3 GWhOut 4.8 GWh

France

IFA · IFA2 · ElecLink

Average3.96GWImporting

In 95.0 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average1.12GWExporting

In 0.0 GWhOut 26.9 GWh

Netherlands

BritNed

Average0.28GWImporting

In 10.8 GWhOut 4.1 GWh

Norway

North Sea Link

Average1.20GWImporting

In 28.9 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.04GWPumping

Generated 0.8 GWhPumped 1.9 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.