Electricity Live

Daily record

Great Britain’s electricity on Wednesday 23 September 2026

On Wednesday 23 September 2026, wind supplied 30% of Great Britain’s electricity and gas 25%. Demand peaked at 35.1 GW at 15:00. Carbon intensity averaged 130 g/kWh and the price £152.04/MWh.

Key moments

  • Wind generation peaked at 12.2 GW at 10:30.
  • Solar generation peaked at 9.0 GW at 14:00.
  • Carbon intensity was lowest at 12:30 (62 g/kWh) and highest at 00:00 (185 g/kWh).
  • The wholesale price ranged from £113.24/MWh at 11:00 to £210.83/MWh at 18:30.
  • Wind made 34% 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 2.748.8%Wind 9.3130.0%Gas 7.7925.1%Hydro 0.581.9%Biomass 2.778.9%Nuclear 3.8212.3%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 28.8avgGeneration 27.0avgTransfers 1.8avg
The day in figurespeaks, averages, totals
Peak demand35.1GW · 15:00
Low 21.0 · 04:05Avg 28.80–40 GW
Made in Great Britain94%of demand
Generation 27.0Transfers 1.8 GW
Net imports41GWh
In
92 Out
51
Zero-carbon share61%of generation
Nuclear 14%Hydro 2%Wind 34%Solar 10%

Transfers · Wed 23 Sept

Interconnectors and storage

On Wednesday 23 September 2026, Great Britain imported 92 GWh and exported 51 GWh through its interconnectors. The most came from Norway (33 GWh), and the most exports went to Ireland (28 GWh).

All interconnectors

Wed 23 Sept
Imported
92GWh
Exported
51GWh
Net in
41GWh
Average net flow
1.69GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Denmark

Viking Link

Average0.23GWImporting

In 15.7 GWhOut 10.2 GWh

France

IFA · IFA2 · ElecLink

Average1.00GWImporting

In 31.8 GWhOut 7.7 GWh

Ireland

Moyle · East–West · Greenlink

Average1.18GWExporting

In 0.0 GWhOut 28.4 GWh

Netherlands

BritNed

Average0.29GWImporting

In 11.9 GWhOut 5.0 GWh

Norway

North Sea Link

Average1.35GWImporting

In 32.5 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.06GWGenerating

Generated 5.7 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.