Electricity Live

Daily record

Great Britain’s electricity on Friday 21 August 2026

On Friday 21 August 2026, gas supplied 26% of Great Britain’s electricity and wind 24%. Demand peaked at 33.6 GW at 13:50. Carbon intensity averaged 131 g/kWh and the price £137.00/MWh.

Key moments

  • Wind generation peaked at 9.6 GW at 16:45.
  • Solar generation peaked at 10.9 GW at 11:30.
  • Carbon intensity was lowest at 23:30 (84 g/kWh) and highest at 04:00 (172 g/kWh).
  • The wholesale price ranged from £121.78/MWh at 17:00 to £164.96/MWh at 06:30.
  • Gas made 30% 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 3.6012.4%Wind 6.9624.0%Gas 7.5225.9%Hydro 0.270.9%Biomass 2.067.1%Nuclear 4.4015.2%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 27.3avgGeneration 24.8avgTransfers 2.5avg
The day in figurespeaks, averages, totals
Peak demand33.6GW · 13:50
Low 19.8 · 05:35Avg 27.30–40 GW
Made in Great Britain91%of demand
Generation 24.8Transfers 2.5 GW
Net imports60GWh
In
99 Out
39
Zero-carbon share61%of generation
Nuclear 18%Hydro 1%Wind 28%Solar 15%

Transfers · Fri 21 Aug

Interconnectors and storage

On Friday 21 August 2026, Great Britain imported 99 GWh and exported 39 GWh through its interconnectors. The most came from France (58 GWh), and the most exports went to Ireland (23 GWh).

All interconnectors

Fri 21 Aug
Imported
99GWh
Exported
39GWh
Net in
60GWh
Average net flow
2.48GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.09GWImporting

In 7.4 GWhOut 5.1 GWh

Denmark

Viking Link

Average0.12GWImporting

In 9.1 GWhOut 6.3 GWh

France

IFA · IFA2 · ElecLink

Average2.43GWImporting

In 58.4 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.94GWExporting

In 0.0 GWhOut 22.6 GWh

Netherlands

BritNed

Average0.10GWImporting

In 7.9 GWhOut 5.5 GWh

Norway

North Sea Link

Average0.68GWImporting

In 16.3 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.01GWPumping

Generated 1.5 GWhPumped 1.7 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.