Electricity Live

Great Britain’s electricity on Tuesday 19 August 2025

On Tuesday 19 August, demand averaged 27.9 GW. Renewables supplied 31%.

27.9GW AVERAGEWind7.13 GW23%Hydro0.27 GW1%Biomass3.15 GW10%Solar1.93 GW6%Gas9.12 GW30%Imports5.86 GW19%Nuclear2.99 GW10%27.9GW AVERAGE23%10%30%19%10%
Price
£78.12/MWh
Day average £78.12
Demand27.9GW
Generation 24.6Transfers 3.3
Fossil fuels30%
Renewables31%
Other39%
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 Tuesday 19 August 2025, gas supplied 30% of Great Britain’s electricity and wind 23%. Demand peaked at 33.9 GW at 12:30. Carbon intensity averaged 147 g/kWh and the price £78.12/MWh. Wind generation peaked at 11.8 GW at 22:50. Solar generation peaked at 6.9 GW at 13:00. Carbon intensity was lowest at 23:30 (92 g/kWh) and highest at 00:30 (171 g/kWh). The wholesale price ranged from £67.18/MWh at 14:00 to £95.99/MWh at 18:00. 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 1.936.3%Wind 7.1323.4%Gas 9.1229.9%Hydro 0.270.9%Biomass 3.1510.3%Nuclear 2.999.8%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 27.9avgGeneration 24.6avgTransfers 3.3avg
The day in figurespeaks, averages, totals
Peak demand33.9GW · 12:30
Low 20.3 · 04:55Avg 27.90–40 GW
Made in Great Britain88%of demand
Generation 24.6Transfers 3.3 GW
Net imports79GWh
In
140 Out
61
Zero-carbon share50%of generation
Nuclear 12%Hydro 1%Wind 29%Solar 8%

Transfers · Tue 19 Aug

Interconnectors and storage

On Tuesday 19 August 2025, Great Britain imported 140 GWh and exported 61 GWh through its interconnectors. The most came from France (89 GWh), and the most exports went to Ireland (34 GWh).

All interconnectors

Tue 19 Aug
Imported
140GWh
Exported
61GWh
Net in
79GWh
Average net flow
3.28GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.04GWImporting

In 6.2 GWhOut 5.1 GWh

Denmark

Viking Link

Average0.21GWExporting

In 7.9 GWhOut 13.0 GWh

France

IFA · IFA2 · ElecLink

Average3.72GWImporting

In 89.3 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average1.43GWExporting

In 0.0 GWhOut 34.4 GWh

Netherlands

BritNed

Average0.02GWImporting

In 8.9 GWhOut 8.6 GWh

Norway

North Sea Link

Average1.15GWImporting

In 27.6 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.02GWPumping

Generated 0.8 GWhPumped 1.3 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.