Electricity Live

Great Britain’s electricity on Wednesday 18 March 2026

On Wednesday 18 March, demand averaged 32.1 GW. Renewables supplied 33%.

32.1GW AVERAGEWind6.65 GW20%Hydro0.68 GW2%Biomass2.60 GW8%Solar3.82 GW11%Gas8.12 GW24%Imports8.02 GW24%Nuclear3.79 GW11%32.1GW AVERAGE20%8%11%24%24%11%
Price
£110.01/MWh
Day average £110.01
Demand32.1GW
Generation 25.7Transfers 6.4
Fossil fuels24%
Renewables33%
Other43%
Carbon intensityModerate
133g/kWh
0Day average 133300
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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 Wednesday 18 March 2026, gas supplied 24% of Great Britain’s electricity and wind 20%. Demand peaked at 37.6 GW at 11:50. Carbon intensity averaged 133 g/kWh and the price £110.01/MWh. Wind generation peaked at 12.9 GW at 00:00. Solar generation peaked at 13.4 GW at 12:00. Carbon intensity was lowest at 11:30 (76 g/kWh) and highest at 18:30 (199 g/kWh). The wholesale price ranged from £75.26/MWh at 15:30 to £152.55/MWh at 18:30. Gas made 32% 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 3.8211.3%Wind 6.6519.8%Gas 8.1224.1%Hydro 0.682.0%Biomass 2.607.7%Nuclear 3.7911.3%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 32.1avgGeneration 25.7avgTransfers 6.4avg
The day in figurespeaks, averages, totals
Peak demand37.6GW · 11:50
Low 24.5 · 04:35Avg 32.10–40 GW
Made in Great Britain80%of demand
Generation 25.7Transfers 6.4 GW
Net imports149GWh
In
186 Out
37
Zero-carbon share58%of generation
Nuclear 15%Hydro 3%Wind 26%Solar 15%

Transfers · Wed 18 Mar

Interconnectors and storage

On Wednesday 18 March 2026, Great Britain imported 186 GWh and exported 37 GWh through its interconnectors. The most came from France (96 GWh), and the most exports went to Ireland (33 GWh).

All interconnectors

Wed 18 Mar
Imported
186GWh
Exported
37GWh
Net in
149GWh
Average net flow
6.23GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.91GWImporting

In 22.0 GWhOut 0.2 GWh

Denmark

Viking Link

Average0.71GWImporting

In 18.9 GWhOut 1.7 GWh

France

IFA · IFA2 · ElecLink

Average3.99GWImporting

In 95.7 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average1.39GWExporting

In 0.0 GWhOut 33.4 GWh

Netherlands

BritNed

Average0.69GWImporting

In 18.0 GWhOut 1.5 GWh

Norway

North Sea Link

Average1.32GWImporting

In 31.6 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.22GWGenerating

Generated 6.2 GWhPumped 1.0 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.