Electricity Live

Great Britain’s electricity on Friday 18 July 2025

On Friday 18 July, demand averaged 28.5 GW. Renewables supplied 28%.

28.5GW AVERAGEWind4.91 GW16%Hydro0.28 GW1%Biomass2.62 GW9%Solar3.53 GW11%Gas9.43 GW31%Imports5.58 GW18%Nuclear4.39 GW14%28.5GW AVERAGE16%9%11%31%18%14%
Price
£83.43/MWh
Day average £83.43
Demand28.5GW
Generation 25.2Transfers 3.4
Fossil fuels31%
Renewables28%
Other41%
Carbon intensityModerate
150g/kWh
0Day average 150300
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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 18 July 2025, gas supplied 31% of Great Britain’s electricity and wind 16%. Demand peaked at 34.9 GW at 12:35. Carbon intensity averaged 150 g/kWh and the price £83.43/MWh. Wind generation peaked at 6.1 GW at 00:20. Solar generation peaked at 10.1 GW at 13:30. Carbon intensity was lowest at 14:30 (112 g/kWh) and highest at 01:00 (175 g/kWh). The wholesale price ranged from £69.94/MWh at 04:30 to £98.68/MWh at 20:00. 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 3.5311.5%Wind 4.9116.0%Gas 9.4330.7%Hydro 0.280.9%Biomass 2.628.5%Nuclear 4.3914.3%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 28.5avgGeneration 25.2avgTransfers 3.4avg
The day in figurespeaks, averages, totals
Peak demand34.9GW · 12:35
Low 21.6 · 04:40Avg 28.50–40 GW
Made in Great Britain88%of demand
Generation 25.2Transfers 3.4 GW
Net imports80GWh
In
131 Out
51
Zero-carbon share52%of generation
Nuclear 17%Hydro 1%Wind 20%Solar 14%

Transfers · Fri 18 Jul

Interconnectors and storage

On Friday 18 July 2025, Great Britain imported 131 GWh and exported 51 GWh through its interconnectors. The most came from France (71 GWh), and the most exports went to Ireland (25 GWh).

All interconnectors

Fri 18 Jul
Imported
131GWh
Exported
51GWh
Net in
80GWh
Average net flow
3.35GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.13GWImporting

In 9.3 GWhOut 6.1 GWh

Denmark

Viking Link

Average0.08GWExporting

In 8.7 GWhOut 10.5 GWh

France

IFA · IFA2 · ElecLink

Average2.96GWImporting

In 71.0 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average1.02GWExporting

In 0.0 GWhOut 24.6 GWh

Netherlands

BritNed

Average0.04GWExporting

In 8.9 GWhOut 9.8 GWh

Norway

North Sea Link

Average1.40GWImporting

In 33.5 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.03GWGenerating

Generated 2.6 GWhPumped 1.8 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.