Electricity Live

Great Britain’s electricity on Monday 27 September 2021

On Monday 27 September, demand averaged 29.9 GW. Renewables supplied 49%.

29.9GW AVERAGEWind13.07 GW43%Hydro0.26 GW1%Biomass2.05 GW7%Solar1.65 GW5%Gas6.93 GW23%Coal0.08 GW0%Imports1.26 GW4%Nuclear5.04 GW17%29.9GW AVERAGE43%23%17%
Price
£125.39/MWh
Day average £125.39
Demand29.9GW
Generation 29.1Transfers 0.8
Fossil fuels23%
Renewables49%
Other27%
Carbon intensityLow
104g/kWh
0Day average 104300
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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 Monday 27 September 2021, wind supplied 43% of Great Britain’s electricity and gas 23%. Demand peaked at 36.6 GW at 17:25. Carbon intensity averaged 104 g/kWh and the price £125.39/MWh. Wind generation peaked at 16.3 GW at 13:00. Solar generation peaked at 6.5 GW at 13:30. Carbon intensity was lowest at 23:30 (64 g/kWh) and highest at 19:00 (158 g/kWh). The wholesale price ranged from £84.10/MWh at 23:30 to £176.57/MWh at 19:30. Wind made 45% of the electricity generated in Great Britain, compared with 25% across 2021.

Charts

Generation, demand, price and carbon

Generation by sourceGW · daily average below
Solar 1.655.4%Wind 13.0743.1%Gas 6.9322.8%Hydro 0.260.9%Biomass 2.056.7%Nuclear 5.0416.6%Coal 0.080.2%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 29.9avgGeneration 29.1avgTransfers 0.8avg
The day in figurespeaks, averages, totals
Peak demand36.6GW · 17:25
Low 19.6 · 03:35Avg 29.90–40 GW
Made in Great Britain97%of demand
Generation 29.1Transfers 0.8 GW
Net imports22GWh
In
28 Out
6
Zero-carbon share69%of generation
Nuclear 17%Hydro 1%Wind 45%Solar 6%

Transfers · Mon 27 Sept

Interconnectors and storage

On Monday 27 September 2021, Great Britain imported 28 GWh and exported 6 GWh through its interconnectors. The most came from Belgium (16 GWh), and the most exports went to Ireland (3 GWh).

All interconnectors

Mon 27 Sept
Imported
28GWh
Exported
6GWh
Net in
22GWh
Average net flow
0.91GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.62GWImporting

In 15.5 GWhOut 0.7 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average0.35GWImporting

In 9.9 GWhOut 1.5 GWh

Ireland

Moyle · East–West · Greenlink

Average0.06GWExporting

In 1.2 GWhOut 2.7 GWh

Netherlands

BritNed

Average0.01GWImporting

In 0.9 GWhOut 0.8 GWh

Norway

North Sea Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.11GWPumping

Generated 2.6 GWhPumped 5.2 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.