Electricity Live

Great Britain’s electricity on Sunday 17 August 2025

On Sunday 17 August, demand averaged 24.5 GW. Renewables supplied 30%.

24.5GW AVERAGEWind3.33 GW13%Hydro0.31 GW1%Biomass2.64 GW10%Solar3.99 GW16%Gas5.44 GW21%Imports6.61 GW26%Nuclear2.99 GW12%24.5GW AVERAGE13%10%16%21%26%12%
Price
£76.58/MWh
Day average £76.58
Demand24.5GW
Generation 18.7Transfers 5.8
Fossil fuels21%
Renewables30%
Other48%
Carbon intensityModerate
121g/kWh
0Day average 121300
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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 Sunday 17 August 2025, gas supplied 21% of Great Britain’s electricity and solar 16%. Demand peaked at 29.2 GW at 11:30. Carbon intensity averaged 121 g/kWh and the price £76.58/MWh. Wind generation peaked at 5.5 GW at 20:35. Solar generation peaked at 12.2 GW at 12:30. Carbon intensity was lowest at 13:30 (73 g/kWh) and highest at 19:00 (171 g/kWh). The wholesale price ranged from £53.40/MWh at 13:00 to £97.41/MWh at 19:00. Gas made 29% 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 3.9915.8%Wind 3.3313.2%Gas 5.4421.5%Hydro 0.311.2%Biomass 2.6410.4%Nuclear 2.9911.8%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 24.5avgGeneration 18.7avgTransfers 5.8avg
The day in figurespeaks, averages, totals
Peak demand29.2GW · 11:30
Low 18.4 · 05:10Avg 24.50–30 GW
Made in Great Britain76%of demand
Generation 18.7Transfers 5.8 GW
Net imports141GWh
In
158 Out
16
Zero-carbon share57%of generation
Nuclear 16%Hydro 2%Wind 18%Solar 21%

Transfers · Sun 17 Aug

Interconnectors and storage

On Sunday 17 August 2025, Great Britain imported 158 GWh and exported 16 GWh through its interconnectors. The most came from France (90 GWh), and the most exports went to Ireland (10 GWh).

All interconnectors

Sun 17 Aug
Imported
158GWh
Exported
16GWh
Net in
141GWh
Average net flow
5.89GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.67GWImporting

In 16.0 GWhOut 0.0 GWh

Denmark

Viking Link

Average0.44GWImporting

In 12.0 GWhOut 1.4 GWh

France

IFA · IFA2 · ElecLink

Average3.76GWImporting

In 90.3 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.39GWExporting

In 0.0 GWhOut 9.5 GWh

Netherlands

BritNed

Average0.09GWImporting

In 7.8 GWhOut 5.5 GWh

Norway

North Sea Link

Average1.32GWImporting

In 31.7 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.09GWPumping

Generated 0.8 GWhPumped 2.8 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.