Electricity Live

Great Britain’s electricity on Monday 20 December 2021

On Monday 20 December, demand averaged 36.0 GW. Renewables supplied 8%.

36.0GW AVERAGEWind2.18 GW6%Hydro0.58 GW2%Biomass2.71 GW7%Solar0.09 GW0%Gas20.70 GW56%Coal1.31 GW4%Imports3.50 GW9%Nuclear5.90 GW16%36.0GW AVERAGE7%56%9%16%
Price
£328.70/MWh
Day average £328.70
Demand36.0GW
Generation 33.5Transfers 2.5
Fossil fuels56%
Renewables8%
Other33%
Carbon intensityHigh
281g/kWh
0Day average 281300
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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 20 December 2021, gas supplied 56% of Great Britain’s electricity and nuclear 16%. Demand peaked at 43.8 GW at 17:20. Carbon intensity averaged 281 g/kWh and the price £328.70/MWh. Wind generation peaked at 3.6 GW at 00:00. Solar generation peaked at 0.6 GW at 11:30. Carbon intensity was lowest at 02:00 (229 g/kWh) and highest at 14:30 (310 g/kWh). The wholesale price ranged from £237.86/MWh at 23:30 to £434.89/MWh at 15:30. Gas made 62% 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 0.090.2%Wind 2.185.9%Gas 20.7056.0%Hydro 0.581.6%Biomass 2.717.3%Nuclear 5.9016.0%Coal 1.313.6%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 36.0avgGeneration 33.5avgTransfers 2.5avg
The day in figurespeaks, averages, totals
Peak demand43.8GW · 17:20
Low 25.0 · 04:00Avg 36.00–60 GW
Made in Great Britain93%of demand
Generation 33.5Transfers 2.5 GW
Net imports58GWh
In
72 Out
14
Zero-carbon share26%of generation
Nuclear 18%Hydro 2%Wind 7%Solar 0%

Transfers · Mon 20 Dec

Interconnectors and storage

On Monday 20 December 2021, Great Britain imported 72 GWh and exported 14 GWh through its interconnectors. The most came from Netherlands (23 GWh), and the most exports went to France (14 GWh).

All interconnectors

Mon 20 Dec
Imported
72GWh
Exported
14GWh
Net in
58GWh
Average net flow
2.43GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.70GWImporting

In 17.1 GWhOut 0.2 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average0.38GWExporting

In 4.3 GWhOut 13.5 GWh

Ireland

Moyle · East–West · Greenlink

Average0.53GWImporting

In 12.7 GWhOut 0.0 GWh

Netherlands

BritNed

Average0.95GWImporting

In 22.8 GWhOut 0.0 GWh

Norway

North Sea Link

Average0.64GWImporting

In 15.3 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.10GWGenerating

Generated 11.8 GWhPumped 9.4 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.