Electricity Live

Great Britain’s electricity on Monday 4 October 2021

On Monday 4 October, demand averaged 31.5 GW. Renewables supplied 36%.

31.5GW AVERAGEWind9.79 GW30%Hydro0.52 GW2%Biomass2.26 GW7%Solar1.36 GW4%Gas10.45 GW32%Coal0.21 GW1%Imports3.23 GW10%Nuclear4.34 GW13%31.5GW AVERAGE30%7%32%10%13%
Price
£147.31/MWh
Day average £147.31
Demand31.5GW
Generation 28.9Transfers 2.5
Fossil fuels32%
Renewables36%
Other31%
Carbon intensityModerate
153g/kWh
0Day average 153300
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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 4 October 2021, gas supplied 32% of Great Britain’s electricity and wind 30%. Demand peaked at 38.2 GW at 17:25. Carbon intensity averaged 153 g/kWh and the price £147.31/MWh. Wind generation peaked at 12.9 GW at 00:00. Solar generation peaked at 5.4 GW at 12:00. Carbon intensity was lowest at 00:00 (68 g/kWh) and highest at 18:30 (228 g/kWh). The wholesale price ranged from £68.52/MWh at 00:30 to £226.32/MWh at 19:00. Gas made 36% 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 1.364.2%Wind 9.7930.4%Gas 10.4532.5%Hydro 0.521.6%Biomass 2.267.0%Nuclear 4.3413.5%Coal 0.210.7%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 31.5avgGeneration 28.9avgTransfers 2.5avg
The day in figurespeaks, averages, totals
Peak demand38.2GW · 17:25
Low 21.0 · 04:10Avg 31.50–40 GW
Made in Great Britain92%of demand
Generation 28.9Transfers 2.5 GW
Net imports61GWh
In
72 Out
12
Zero-carbon share55%of generation
Nuclear 15%Hydro 2%Wind 34%Solar 5%

Transfers · Mon 4 Oct

Interconnectors and storage

On Monday 4 October 2021, Great Britain imported 72 GWh and exported 12 GWh through its interconnectors. The most came from Belgium (21 GWh), and the most exports went to Ireland (11 GWh).

All interconnectors

Mon 4 Oct
Imported
72GWh
Exported
12GWh
Net in
61GWh
Average net flow
2.54GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.88GWImporting

In 21.0 GWhOut 0.0 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average0.62GWImporting

In 15.8 GWhOut 0.8 GWh

Ireland

Moyle · East–West · Greenlink

Average0.43GWExporting

In 0.2 GWhOut 10.6 GWh

Netherlands

BritNed

Average0.78GWImporting

In 18.8 GWhOut 0.1 GWh

Norway

North Sea Link

Average0.69GWImporting

In 16.5 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.01GWPumping

Generated 5.1 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.