Electricity Live

Great Britain’s electricity on Saturday 21 March 2026

On Saturday 21 March, demand averaged 29.0 GW. Renewables supplied 25%.

29.0GW AVERAGEWind3.15 GW10%Hydro0.62 GW2%Biomass2.99 GW10%Solar3.73 GW12%Gas8.66 GW28%Imports7.28 GW24%Nuclear4.12 GW13%29.0GW AVERAGE10%10%12%28%24%13%
Price
£124.79/MWh
Day average £124.79
Demand29.0GW
Generation 23.3Transfers 5.7
Fossil fuels28%
Renewables25%
Other47%
Carbon intensityHigh
153g/kWh
0Day average 153300
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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 21 March 2026, gas supplied 28% of Great Britain’s electricity and nuclear 13%. Demand peaked at 34.6 GW at 11:10. Carbon intensity averaged 153 g/kWh and the price £124.79/MWh. Wind generation peaked at 6.5 GW at 23:15. Solar generation peaked at 13.4 GW at 12:00. Carbon intensity was lowest at 13:00 (91 g/kWh) and highest at 18:00 (197 g/kWh). The wholesale price ranged from £101.57/MWh at 14:30 to £148.60/MWh at 07:30. Gas made 37% of the electricity generated in Great Britain, compared with 28% across 2026 so far.

Charts

Generation, demand, price and carbon

Generation by sourceGW · daily average below
Solar 3.7312.2%Wind 3.1510.3%Gas 8.6628.3%Hydro 0.622.0%Biomass 2.999.8%Nuclear 4.1213.5%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 29.0avgGeneration 23.3avgTransfers 5.7avg
The day in figurespeaks, averages, totals
Peak demand34.6GW · 11:10
Low 22.8 · 05:05Avg 29.00–40 GW
Made in Great Britain80%of demand
Generation 23.3Transfers 5.7 GW
Net imports137GWh
In
170 Out
33
Zero-carbon share50%of generation
Nuclear 18%Hydro 3%Wind 14%Solar 16%

Transfers · Sat 21 Mar

Interconnectors and storage

On Saturday 21 March 2026, Great Britain imported 170 GWh and exported 33 GWh through its interconnectors. The most came from France (77 GWh), and the most exports went to Ireland (32 GWh).

All interconnectors

Sat 21 Mar
Imported
170GWh
Exported
33GWh
Net in
137GWh
Average net flow
5.70GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.94GWImporting

In 22.5 GWhOut 0.0 GWh

Denmark

Viking Link

Average0.67GWImporting

In 16.9 GWhOut 0.8 GWh

France

IFA · IFA2 · ElecLink

Average3.21GWImporting

In 77.0 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average1.33GWExporting

In 0.0 GWhOut 32.0 GWh

Netherlands

BritNed

Average0.81GWImporting

In 19.6 GWhOut 0.0 GWh

Norway

North Sea Link

Average1.40GWImporting

In 33.5 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.05GWGenerating

Generated 5.0 GWhPumped 4.0 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.