Electricity Live

Great Britain’s electricity on Wednesday 22 September 2021

On Wednesday 22 September, demand averaged 29.8 GW. Renewables supplied 37%.

29.8GW AVERAGEWind9.09 GW30%Hydro0.13 GW0%Biomass1.59 GW5%Solar1.83 GW6%Gas10.31 GW34%Imports2.12 GW7%Nuclear4.90 GW16%29.8GW AVERAGE30%34%7%16%
Price
£164.57/MWh
Day average £164.57
Demand29.8GW
Generation 27.8Transfers 2.0
Fossil fuels34%
Renewables37%
Other29%
Carbon intensityModerate
160g/kWh
0Day average 160300
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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 Wednesday 22 September 2021, gas supplied 34% of Great Britain’s electricity and wind 30%. Demand peaked at 36.0 GW at 17:25. Carbon intensity averaged 160 g/kWh and the price £164.57/MWh. Wind generation peaked at 12.1 GW at 21:55. Solar generation peaked at 6.2 GW at 13:30. Carbon intensity was lowest at 23:30 (103 g/kWh) and highest at 07:00 (191 g/kWh). The wholesale price ranged from £134.48/MWh at 16:00 to £220.95/MWh at 08:30. Gas made 37% of the electricity generated in Great Britain, compared with 42% across 2021.

Charts

Generation, demand, price and carbon

Generation by sourceGW · daily average below
Solar 1.836.1%Wind 9.0930.3%Gas 10.3134.4%Hydro 0.130.4%Biomass 1.595.3%Nuclear 4.9016.3%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 29.8avgGeneration 27.8avgTransfers 2.0avg
The day in figurespeaks, averages, totals
Peak demand36.0GW · 17:25
Low 20.8 · 03:25Avg 29.80–40 GW
Made in Great Britain93%of demand
Generation 27.8Transfers 2.0 GW
Net imports46GWh
In
47 Out
0
Zero-carbon share57%of generation
Nuclear 18%Hydro 0%Wind 33%Solar 7%

Transfers · Wed 22 Sept

Interconnectors and storage

On Wednesday 22 September 2021, Great Britain imported 47 GWh and exported 0 GWh through its interconnectors. The most came from Netherlands (21 GWh).

All interconnectors

Wed 22 Sept
Imported
47GWh
Exported
0GWh
Net in
46GWh
Average net flow
1.92GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average0.87GWImporting

In 20.9 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.16GWImporting

In 4.2 GWhOut 0.3 GWh

Netherlands

BritNed

Average0.88GWImporting

In 21.1 GWhOut 0.0 GWh

Norway

North Sea Link

Average0.00GWIdle

In 0.3 GWhOut 0.1 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.05GWGenerating

Generated 4.3 GWhPumped 3.1 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.