Electricity Live

Great Britain’s electricity on Saturday 18 January 2025

On Saturday 18 January, demand averaged 33.9 GW. Renewables supplied 22%.

33.9GW AVERAGEWind7.26 GW20%Hydro0.50 GW1%Biomass3.14 GW9%Solar0.22 GW1%Gas19.10 GW53%Imports2.06 GW6%Nuclear3.51 GW10%33.9GW AVERAGE20%9%53%10%
Price
£109.59/MWh
Day average £109.59
Demand33.9GW
Generation 33.7Transfers 0.2
Fossil fuels53%
Renewables22%
Other24%
Carbon intensityHigh
227g/kWh
0Day average 227300
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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 18 January 2025, gas supplied 53% of Great Britain’s electricity and wind 20%. Demand peaked at 41.3 GW at 18:05. Carbon intensity averaged 227 g/kWh and the price £109.59/MWh. Wind generation peaked at 8.4 GW at 01:25. Solar generation peaked at 1.2 GW at 12:30. Carbon intensity was lowest at 01:00 (200 g/kWh) and highest at 20:30 (257 g/kWh). The wholesale price ranged from £89.54/MWh at 03:30 to £152.64/MWh at 17:30. Gas made 57% 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 0.220.6%Wind 7.2620.3%Gas 19.1053.4%Hydro 0.501.4%Biomass 3.148.8%Nuclear 3.519.8%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 33.9avgGeneration 33.7avgTransfers 0.2avg
The day in figurespeaks, averages, totals
Peak demand41.3GW · 18:05
Low 25.2 · 04:30Avg 33.90–60 GW
Made in Great Britain99%of demand
Generation 33.7Transfers 0.2 GW
Net imports9GWh
In
46 Out
36
Zero-carbon share34%of generation
Nuclear 10%Hydro 1%Wind 22%Solar 1%

Transfers · Sat 18 Jan

Interconnectors and storage

On Saturday 18 January 2025, Great Britain imported 46 GWh and exported 36 GWh through its interconnectors. The most came from Norway (24 GWh), and the most exports went to France (18 GWh).

All interconnectors

Sat 18 Jan
Imported
46GWh
Exported
36GWh
Net in
9GWh
Average net flow
0.39GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.46GWExporting

In 0.9 GWhOut 11.8 GWh

Denmark

Viking Link

Average0.09GWExporting

In 2.8 GWhOut 4.8 GWh

France

IFA · IFA2 · ElecLink

Average0.38GWExporting

In 9.3 GWhOut 18.3 GWh

Ireland

Moyle · East–West · Greenlink

Average0.30GWImporting

In 8.2 GWhOut 1.1 GWh

Netherlands

BritNed

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Norway

North Sea Link

Average1.01GWImporting

In 24.3 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.18GWPumping

Generated 3.9 GWhPumped 8.2 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.