Electricity Live

Great Britain’s electricity on Thursday 20 March 2025

On Thursday 20 March, demand averaged 31.7 GW. Renewables supplied 24%.

31.7GW AVERAGEWind4.44 GW13%Hydro0.28 GW1%Biomass2.01 GW6%Solar3.30 GW10%Gas12.83 GW39%Imports6.63 GW20%Nuclear3.63 GW11%31.7GW AVERAGE13%10%39%20%11%
Price
£106.46/MWh
Day average £106.46
Demand31.7GW
Generation 26.5Transfers 5.2
Fossil fuels39%
Renewables24%
Other37%
Carbon intensityHigh
181g/kWh
0Day average 181300
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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 Thursday 20 March 2025, gas supplied 39% of Great Britain’s electricity and wind 13%. Demand peaked at 37.3 GW at 10:00. Carbon intensity averaged 181 g/kWh and the price £106.46/MWh. Wind generation peaked at 14.5 GW at 23:10. Solar generation peaked at 11.8 GW at 11:30. Carbon intensity was lowest at 23:00 (63 g/kWh) and highest at 05:30 (245 g/kWh). The wholesale price ranged from £83.69/MWh at 14:00 to £142.77/MWh at 18:30. Gas made 48% 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 3.3010.0%Wind 4.4413.4%Gas 12.8338.7%Hydro 0.280.8%Biomass 2.016.1%Nuclear 3.6311.0%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 31.7avgGeneration 26.5avgTransfers 5.2avg
The day in figurespeaks, averages, totals
Peak demand37.3GW · 10:00
Low 24.3 · 05:05Avg 31.70–40 GW
Made in Great Britain84%of demand
Generation 26.5Transfers 5.2 GW
Net imports125GWh
In
154 Out
29
Zero-carbon share44%of generation
Nuclear 14%Hydro 1%Wind 17%Solar 12%

Transfers · Thu 20 Mar

Interconnectors and storage

On Thursday 20 March 2025, Great Britain imported 154 GWh and exported 29 GWh through its interconnectors. The most came from France (89 GWh), and the most exports went to Denmark (10 GWh).

All interconnectors

Thu 20 Mar
Imported
154GWh
Exported
29GWh
Net in
125GWh
Average net flow
5.21GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.51GWImporting

In 14.4 GWhOut 2.2 GWh

Denmark

Viking Link

Average0.04GWImporting

In 11.0 GWhOut 10.1 GWh

France

IFA · IFA2 · ElecLink

Average3.71GWImporting

In 89.0 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.31GWExporting

In 2.5 GWhOut 10.0 GWh

Netherlands

BritNed

Average0.26GWImporting

In 13.1 GWhOut 6.8 GWh

Norway

North Sea Link

Average1.00GWImporting

In 23.9 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.02GWGenerating

Generated 5.2 GWhPumped 4.7 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.