Electricity Live

Great Britain’s electricity on Saturday 9 August 2025

On Saturday 9 August, demand averaged 25.5 GW. Renewables supplied 56%.

25.5GW AVERAGEWind11.69 GW41%Hydro0.24 GW1%Biomass1.47 GW5%Solar3.87 GW14%Gas4.27 GW15%Imports3.84 GW14%Nuclear3.01 GW11%25.5GW AVERAGE41%14%15%14%11%
Price
£45.73/MWh
Day average £45.73
Demand25.5GW
Generation 24.6Transfers 1.0
Fossil fuels15%
Renewables56%
Other29%
Carbon intensityLow
81g/kWh
0Day average 81300
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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 Saturday 9 August 2025, wind supplied 41% of Great Britain’s electricity and gas 15%. Demand peaked at 32.0 GW at 12:50. Carbon intensity averaged 81 g/kWh and the price £45.73/MWh. Wind generation peaked at 14.2 GW at 15:45. Solar generation peaked at 12.0 GW at 13:30. Carbon intensity was lowest at 13:30 (43 g/kWh) and highest at 20:30 (123 g/kWh). The wholesale price ranged from −£12.88/MWh at 14:30 to £97.19/MWh at 21:30. The price was below zero for 5.5 hours. Wind made 48% of the electricity generated in Great Britain, compared with 35% across 2025.

Charts

Generation, demand, price and carbon

Generation by sourceGW · daily average below
Solar 3.8713.6%Wind 11.6941.2%Gas 4.2715.0%Hydro 0.240.8%Biomass 1.475.2%Nuclear 3.0110.6%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 25.5avgGeneration 24.6avgTransfers 1.0avg
The day in figurespeaks, averages, totals
Peak demand32.0GW · 12:50
Low 19.3 · 05:50Avg 25.50–40 GW
Made in Great Britain96%of demand
Generation 24.6Transfers 1.0 GW
Net imports25GWh
In
91 Out
67
Zero-carbon share77%of generation
Nuclear 12%Hydro 1%Wind 48%Solar 16%

Transfers · Sat 9 Aug

Interconnectors and storage

On Saturday 9 August 2025, Great Britain imported 91 GWh and exported 67 GWh through its interconnectors. The most came from France (69 GWh), and the most exports went to Ireland (21 GWh).

All interconnectors

Sat 9 Aug
Imported
91GWh
Exported
67GWh
Net in
25GWh
Average net flow
1.02GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.13GWExporting

In 6.5 GWhOut 9.6 GWh

Denmark

Viking Link

Average0.38GWExporting

In 3.3 GWhOut 12.3 GWh

France

IFA · IFA2 · ElecLink

Average2.89GWImporting

In 69.4 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.86GWExporting

In 0.4 GWhOut 21.0 GWh

Netherlands

BritNed

Average0.32GWExporting

In 3.5 GWhOut 11.2 GWh

Norway

North Sea Link

Average0.19GWExporting

In 8.1 GWhOut 12.6 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.05GWPumping

Generated 1.0 GWhPumped 2.1 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.