Electricity Live

Daily record

Great Britain’s electricity on Tuesday 18 August 2026

On Tuesday 18 August 2026, gas supplied 34% of Great Britain’s electricity and wind 31%. Demand peaked at 35.1 GW at 12:30. Carbon intensity averaged 150 g/kWh and the price £153.87/MWh.

Key moments

  • Wind generation peaked at 12.2 GW at 14:55.
  • Solar generation peaked at 7.4 GW at 12:30.
  • Carbon intensity was lowest at 14:00 (86 g/kWh) and highest at 23:30 (203 g/kWh).
  • The wholesale price ranged from £122.64/MWh at 03:00 to £193.31/MWh at 22:00.
  • Gas made 35% 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 2.297.4%Wind 9.5831.0%Gas 10.4433.7%Hydro 0.351.1%Biomass 2.528.2%Nuclear 4.3013.9%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 28.2avgGeneration 29.5avgTransfers −1.3avg
The day in figurespeaks, averages, totals
Peak demand35.1GW · 12:30
Low 21.4 · 04:15Avg 28.20–40 GW
Made in Great Britain104%of demand
Generation 29.5Transfers −1.3 GW
Net exports29GWh
In
31 Out
61
Zero-carbon share56%of generation
Nuclear 15%Hydro 1%Wind 32%Solar 8%

Transfers · Tue 18 Aug

Interconnectors and storage

On Tuesday 18 August 2026, Great Britain imported 31 GWh and exported 61 GWh through its interconnectors. The most came from France (20 GWh), and the most exports went to Ireland (21 GWh).

All interconnectors

Tue 18 Aug
Imported
31GWh
Exported
61GWh
Net out
29GWh
Average net flow
1.23GW out

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.33GWExporting

In 0.5 GWhOut 8.3 GWh

Denmark

Viking Link

Average0.45GWExporting

In 0.8 GWhOut 11.5 GWh

France

IFA · IFA2 · ElecLink

Average0.37GWImporting

In 20.0 GWhOut 11.1 GWh

Ireland

Moyle · East–West · Greenlink

Average0.85GWExporting

In 0.2 GWhOut 20.6 GWh

Netherlands

BritNed

Average0.38GWExporting

In 0.2 GWhOut 9.4 GWh

Norway

North Sea Link

Average0.40GWImporting

In 9.9 GWhOut 0.2 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.03GWPumping

Generated 3.3 GWhPumped 4.1 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.