Electricity Live

Great Britain’s electricity on Monday 17 March 2025

On Monday 17 March, demand averaged 34.4 GW. Renewables supplied 25%.

34.4GW AVERAGEWind7.28 GW21%Hydro0.33 GW1%Biomass2.84 GW8%Solar1.11 GW3%Gas13.18 GW37%Imports6.83 GW19%Nuclear3.65 GW10%34.4GW AVERAGE21%8%37%19%10%
Price
£103.07/MWh
Day average £103.07
Demand34.4GW
Generation 28.4Transfers 6.1
Fossil fuels37%
Renewables25%
Other38%
Carbon intensityHigh
178g/kWh
0Day average 178300
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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 17 March 2025, gas supplied 37% of Great Britain’s electricity and wind 21%. Demand peaked at 41.2 GW at 12:05. Carbon intensity averaged 178 g/kWh and the price £103.07/MWh. Wind generation peaked at 11.4 GW at 22:05. Solar generation peaked at 3.9 GW at 11:30. Carbon intensity was lowest at 23:00 (120 g/kWh) and highest at 06:30 (215 g/kWh). The wholesale price ranged from £85.42/MWh at 01:00 to £132.37/MWh at 06:30. Gas made 46% 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 1.113.2%Wind 7.2820.7%Gas 13.1837.4%Hydro 0.330.9%Biomass 2.848.1%Nuclear 3.6510.4%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 34.4avgGeneration 28.4avgTransfers 6.1avg
The day in figurespeaks, averages, totals
Peak demand41.2GW · 12:05
Low 23.9 · 05:05Avg 34.40–60 GW
Made in Great Britain82%of demand
Generation 28.4Transfers 6.1 GW
Net imports144GWh
In
160 Out
15
Zero-carbon share44%of generation
Nuclear 13%Hydro 1%Wind 26%Solar 4%

Transfers · Mon 17 Mar

Interconnectors and storage

On Monday 17 March 2025, Great Britain imported 160 GWh and exported 15 GWh through its interconnectors. The most came from France (86 GWh), and the most exports went to Ireland (14 GWh).

All interconnectors

Mon 17 Mar
Imported
160GWh
Exported
15GWh
Net in
144GWh
Average net flow
6.02GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.53GWImporting

In 13.0 GWhOut 0.3 GWh

Denmark

Viking Link

Average0.73GWImporting

In 18.1 GWhOut 0.6 GWh

France

IFA · IFA2 · ElecLink

Average3.58GWImporting

In 86.0 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.59GWExporting

In 0.0 GWhOut 14.1 GWh

Netherlands

BritNed

Average0.77GWImporting

In 18.8 GWhOut 0.5 GWh

Norway

North Sea Link

Average1.00GWImporting

In 23.9 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.05GWGenerating

Generated 3.9 GWhPumped 2.6 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.