Electricity Live

Great Britain’s electricity on Monday 31 March 2025

On Monday 31 March, demand averaged 30.2 GW. Renewables supplied 24%.

30.2GW AVERAGEWind3.42 GW11%Hydro0.58 GW2%Biomass1.04 GW3%Solar3.46 GW11%Gas12.16 GW39%Imports6.85 GW22%Nuclear3.80 GW12%30.2GW AVERAGE11%11%39%22%12%
Price
£94.01/MWh
Day average £94.01
Demand30.2GW
Generation 24.5Transfers 5.7
Fossil fuels39%
Renewables24%
Other37%
Carbon intensityModerate
184g/kWh
0Day average 184300
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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 31 March 2025, gas supplied 39% of Great Britain’s electricity and nuclear 12%. Demand peaked at 36.0 GW at 10:00. Carbon intensity averaged 184 g/kWh and the price £94.01/MWh. Wind generation peaked at 4.9 GW at 23:55. Solar generation peaked at 11.4 GW at 13:30. Carbon intensity was lowest at 13:00 (138 g/kWh) and highest at 19:00 (229 g/kWh). The wholesale price ranged from £69.61/MWh at 04:30 to £144.01/MWh at 07:30. Gas made 50% 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 3.4611.0%Wind 3.4210.9%Gas 12.1638.8%Hydro 0.581.9%Biomass 1.043.3%Nuclear 3.8012.1%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 30.2avgGeneration 24.5avgTransfers 5.7avg
The day in figurespeaks, averages, totals
Peak demand36.0GW · 10:00
Low 23.1 · 05:05Avg 30.20–40 GW
Made in Great Britain81%of demand
Generation 24.5Transfers 5.7 GW
Net imports129GWh
In
157 Out
27
Zero-carbon share46%of generation
Nuclear 16%Hydro 2%Wind 14%Solar 14%

Transfers · Mon 31 Mar

Interconnectors and storage

On Monday 31 March 2025, Great Britain imported 157 GWh and exported 27 GWh through its interconnectors. The most came from France (76 GWh), and the most exports went to Ireland (26 GWh).

All interconnectors

Mon 31 Mar
Imported
157GWh
Exported
27GWh
Net in
129GWh
Average net flow
5.40GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.76GWImporting

In 18.2 GWhOut 0.1 GWh

Denmark

Viking Link

Average0.79GWImporting

In 19.6 GWhOut 0.6 GWh

France

IFA · IFA2 · ElecLink

Average3.16GWImporting

In 75.9 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average1.10GWExporting

In 0.1 GWhOut 26.5 GWh

Netherlands

BritNed

Average0.79GWImporting

In 18.9 GWhOut 0.0 GWh

Norway

North Sea Link

Average1.00GWImporting

In 23.9 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.30GWGenerating

Generated 7.7 GWhPumped 0.5 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.