Electricity Live

Great Britain’s electricity on Friday 1 August 2025

On Friday 1 August, demand averaged 26.5 GW. Renewables supplied 44%.

26.5GW AVERAGEWind10.06 GW35%Hydro0.27 GW1%Biomass2.50 GW9%Solar2.43 GW8%Gas3.74 GW13%Imports6.06 GW21%Nuclear3.83 GW13%26.5GW AVERAGE35%9%8%13%21%13%
Price
£80.51/MWh
Day average £80.51
Demand26.5GW
Generation 22.8Transfers 3.7
Fossil fuels13%
Renewables44%
Other43%
Carbon intensityLow
78g/kWh
0Day average 78300
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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 1 August 2025, wind supplied 35% of Great Britain’s electricity and nuclear 13%. Demand peaked at 32.5 GW at 12:35. Carbon intensity averaged 78 g/kWh and the price £80.51/MWh. Wind generation peaked at 11.9 GW at 17:10. Solar generation peaked at 7.2 GW at 12:30. Carbon intensity was lowest at 15:30 (60 g/kWh) and highest at 19:00 (104 g/kWh). The wholesale price ranged from £38.66/MWh at 15:30 to £100.96/MWh at 19:30. Wind made 44% 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 2.438.4%Wind 10.0634.8%Gas 3.7412.9%Hydro 0.270.9%Biomass 2.508.7%Nuclear 3.8313.3%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 26.5avgGeneration 22.8avgTransfers 3.7avg
The day in figurespeaks, averages, totals
Peak demand32.5GW · 12:35
Low 20.0 · 05:45Avg 26.50–40 GW
Made in Great Britain86%of demand
Generation 22.8Transfers 3.7 GW
Net imports86GWh
In
142 Out
56
Zero-carbon share73%of generation
Nuclear 17%Hydro 1%Wind 44%Solar 11%

Transfers · Fri 1 Aug

Interconnectors and storage

On Friday 1 August 2025, Great Britain imported 142 GWh and exported 56 GWh through its interconnectors. The most came from France (92 GWh), and the most exports went to Ireland (30 GWh).

All interconnectors

Fri 1 Aug
Imported
142GWh
Exported
56GWh
Net in
86GWh
Average net flow
3.57GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.28GWImporting

In 10.8 GWhOut 4.0 GWh

Denmark

Viking Link

Average0.20GWExporting

In 7.2 GWhOut 11.9 GWh

France

IFA · IFA2 · ElecLink

Average3.81GWImporting

In 91.5 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average1.26GWExporting

In 0.0 GWhOut 30.3 GWh

Netherlands

BritNed

Average0.15GWExporting

In 6.4 GWhOut 10.0 GWh

Norway

North Sea Link

Average1.08GWImporting

In 25.9 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.08GWGenerating

Generated 3.4 GWhPumped 1.4 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.