Electricity Live

Great Britain’s electricity on Monday 18 May 2026

On Monday 18 May, demand averaged 29.0 GW. Renewables supplied 26%.

29.0GW AVERAGEWind4.87 GW16%Hydro0.20 GW1%Biomass1.98 GW6%Solar2.87 GW9%Gas11.67 GW38%Imports5.72 GW19%Nuclear3.21 GW11%29.0GW AVERAGE16%9%38%19%11%
Price
£117.92/MWh
Day average £117.92
Demand29.0GW
Generation 24.8Transfers 4.2
Fossil fuels38%
Renewables26%
Other36%
Carbon intensityHigh
176g/kWh
0Day average 176300
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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 18 May 2026, gas supplied 38% of Great Britain’s electricity and wind 16%. Demand peaked at 35.5 GW at 12:55. Carbon intensity averaged 176 g/kWh and the price £117.92/MWh. Wind generation peaked at 13.4 GW at 23:55. Solar generation peaked at 8.0 GW at 12:30. Carbon intensity was lowest at 23:30 (73 g/kWh) and highest at 05:30 (226 g/kWh). The wholesale price ranged from £98.28/MWh at 15:00 to £137.81/MWh at 06:30. Gas made 47% 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 2.879.4%Wind 4.8716.0%Gas 11.6738.2%Hydro 0.200.7%Biomass 1.986.5%Nuclear 3.2110.5%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 29.0avgGeneration 24.8avgTransfers 4.2avg
The day in figurespeaks, averages, totals
Peak demand35.5GW · 12:55
Low 21.2 · 04:40Avg 29.00–40 GW
Made in Great Britain85%of demand
Generation 24.8Transfers 4.2 GW
Net imports96GWh
In
132 Out
35
Zero-carbon share45%of generation
Nuclear 13%Hydro 1%Wind 20%Solar 12%

Transfers · Mon 18 May

Interconnectors and storage

On Monday 18 May 2026, Great Britain imported 132 GWh and exported 35 GWh through its interconnectors. The most came from France (83 GWh), and the most exports went to Ireland (23 GWh).

All interconnectors

Mon 18 May
Imported
132GWh
Exported
35GWh
Net in
96GWh
Average net flow
4.01GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.34GWImporting

In 13.1 GWhOut 5.0 GWh

Denmark

Viking Link

Average0.04GWImporting

In 0.9 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average3.46GWImporting

In 83.1 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.94GWExporting

In 0.4 GWhOut 22.9 GWh

Netherlands

BritNed

Average0.14GWImporting

In 10.8 GWhOut 7.4 GWh

Norway

North Sea Link

Average0.97GWImporting

In 23.2 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.22GWGenerating

Generated 5.7 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.