Electricity Live

Daily record

Great Britain’s electricity on Friday 18 September 2026

On Friday 18 September 2026, wind supplied 58% of Great Britain’s electricity and gas 11%. Demand peaked at 35.4 GW at 13:55. Carbon intensity averaged 61 g/kWh and the price £78.70/MWh.

Key moments

  • Wind generation peaked at 22.2 GW at 17:40.
  • Solar generation peaked at 8.6 GW at 12:00.
  • Carbon intensity was lowest at 13:00 (38 g/kWh) and highest at 06:00 (87 g/kWh).
  • The wholesale price ranged from −£0.50/MWh at 23:30 to £167.78/MWh at 07:00. The price was below zero for 0.5 hours.
  • Wind made 62% of the electricity generated in Great Britain, compared with 36% across 2026 so far.

Charts

Generation, demand, price and carbon

Generation by sourceGW · daily average below
Solar 2.106.6%Wind 18.4257.6%Gas 3.6511.4%Hydro 0.401.2%Biomass 1.625.1%Nuclear 3.3310.4%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 29.2avgGeneration 29.5avgTransfers −0.3avg
The day in figurespeaks, averages, totals
Peak demand35.4GW · 13:55
Low 22.3 · 05:40Avg 29.20–40 GW
Made in Great Britain101%of demand
Generation 29.5Transfers −0.3 GW
Net exports9GWh
In
53 Out
62
Zero-carbon share82%of generation
Nuclear 11%Hydro 1%Wind 62%Solar 7%

Transfers · Fri 18 Sept

Interconnectors and storage

On Friday 18 September 2026, Great Britain imported 53 GWh and exported 62 GWh through its interconnectors. The most came from Denmark (24 GWh), and the most exports went to France (21 GWh).

All interconnectors

Fri 18 Sept
Imported
53GWh
Exported
62GWh
Net out
9GWh
Average net flow
0.39GW out

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.22GWExporting

In 4.6 GWhOut 9.8 GWh

Denmark

Viking Link

Average1.01GWImporting

In 24.3 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average0.01GWExporting

In 20.5 GWhOut 20.9 GWh

Ireland

Moyle · East–West · Greenlink

Average0.75GWExporting

In 0.0 GWhOut 17.9 GWh

Netherlands

BritNed

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Norway

North Sea Link

Average0.43GWExporting

In 3.1 GWhOut 13.4 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.10GWGenerating

Generated 6.6 GWhPumped 4.2 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.