Electricity Live

Great Britain’s electricity on Monday 4 August 2025

On Monday 4 August, demand averaged 28.4 GW. Renewables supplied 57%.

28.4GW AVERAGEWind14.77 GW48%Hydro0.41 GW1%Biomass1.01 GW3%Solar2.20 GW7%Gas4.52 GW15%Imports4.06 GW13%Nuclear3.64 GW12%28.4GW AVERAGE48%7%15%13%12%
Price
£36.70/MWh
Day average £36.70
Demand28.4GW
Generation 26.5Transfers 1.9
Fossil fuels15%
Renewables57%
Other28%
Carbon intensityLow
80g/kWh
0Day average 80300
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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 Monday 4 August 2025, wind supplied 48% of Great Britain’s electricity and gas 15%. Demand peaked at 35.7 GW at 13:00. Carbon intensity averaged 80 g/kWh and the price £36.70/MWh. Wind generation peaked at 20.8 GW at 13:45. Solar generation peaked at 7.0 GW at 15:00. Carbon intensity was lowest at 16:00 (44 g/kWh) and highest at 00:00 (130 g/kWh). The wholesale price ranged from −£9.95/MWh at 23:30 to £93.45/MWh at 00:30. The price was below zero for 3 hours. Wind made 56% 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 2.207.2%Wind 14.7748.3%Gas 4.5214.8%Hydro 0.411.3%Biomass 1.013.3%Nuclear 3.6411.9%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 28.4avgGeneration 26.5avgTransfers 1.9avg
The day in figurespeaks, averages, totals
Peak demand35.7GW · 13:00
Low 20.1 · 02:20Avg 28.40–40 GW
Made in Great Britain93%of demand
Generation 26.5Transfers 1.9 GW
Net imports52GWh
In
97 Out
45
Zero-carbon share79%of generation
Nuclear 14%Hydro 2%Wind 56%Solar 8%

Transfers · Mon 4 Aug

Interconnectors and storage

On Monday 4 August 2025, Great Britain imported 97 GWh and exported 45 GWh through its interconnectors. The most came from France (59 GWh), and the most exports went to Netherlands (17 GWh).

All interconnectors

Mon 4 Aug
Imported
97GWh
Exported
45GWh
Net in
52GWh
Average net flow
2.18GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.29GWExporting

In 4.1 GWhOut 11.1 GWh

Denmark

Viking Link

Average0.13GWImporting

In 10.7 GWhOut 7.6 GWh

France

IFA · IFA2 · ElecLink

Average2.42GWImporting

In 59.2 GWhOut 1.1 GWh

Ireland

Moyle · East–West · Greenlink

Average0.35GWImporting

In 10.0 GWhOut 1.5 GWh

Netherlands

BritNed

Average0.68GWExporting

In 0.8 GWhOut 17.1 GWh

Norway

North Sea Link

Average0.24GWImporting

In 12.1 GWhOut 6.2 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.28GWPumping

Generated 0.5 GWhPumped 7.2 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.