Electricity Live

Great Britain’s electricity on Friday 31 December 2021

On Friday 31 December, demand averaged 29.5 GW. Renewables supplied 46%.

29.5GW AVERAGEWind13.37 GW44%Hydro0.51 GW2%Biomass1.88 GW6%Solar0.31 GW1%Gas4.39 GW14%Imports3.33 GW11%Nuclear6.79 GW22%29.5GW AVERAGE44%14%11%22%
Price
£103.77/MWh
Day average £103.77
Demand29.5GW
Generation 27.3Transfers 2.3
Fossil fuels14%
Renewables46%
Other39%
Carbon intensityLow
88g/kWh
0Day average 88300
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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 Friday 31 December 2021, wind supplied 44% of Great Britain’s electricity and nuclear 22%. Demand peaked at 37.4 GW at 16:55. Carbon intensity averaged 88 g/kWh and the price £103.77/MWh. Wind generation peaked at 15.3 GW at 11:30. Solar generation peaked at 2.0 GW at 12:30. Carbon intensity was lowest at 03:30 (58 g/kWh) and highest at 18:00 (127 g/kWh). The wholesale price ranged from −£27.14/MWh at 03:30 to £180.79/MWh at 01:00. The price was below zero for 1.5 hours. Wind made 49% 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 0.311.0%Wind 13.3743.7%Gas 4.3914.4%Hydro 0.511.7%Biomass 1.886.1%Nuclear 6.7922.2%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 29.5avgGeneration 27.3avgTransfers 2.3avg
The day in figurespeaks, averages, totals
Peak demand37.4GW · 16:55
Low 21.4 · 03:50Avg 29.50–40 GW
Made in Great Britain92%of demand
Generation 27.3Transfers 2.3 GW
Net imports57GWh
In
69 Out
12
Zero-carbon share77%of generation
Nuclear 25%Hydro 2%Wind 49%Solar 1%

Transfers · Fri 31 Dec

Interconnectors and storage

On Friday 31 December 2021, Great Britain imported 69 GWh and exported 12 GWh through its interconnectors. The most came from Belgium (20 GWh), and the most exports went to France (7 GWh).

All interconnectors

Fri 31 Dec
Imported
69GWh
Exported
12GWh
Net in
57GWh
Average net flow
2.38GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.84GWImporting

In 20.2 GWhOut 0.0 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average0.02GWImporting

In 7.4 GWhOut 6.9 GWh

Ireland

Moyle · East–West · Greenlink

Average0.49GWImporting

In 11.7 GWhOut 0.0 GWh

Netherlands

BritNed

Average0.81GWImporting

In 19.6 GWhOut 0.2 GWh

Norway

North Sea Link

Average0.22GWImporting

In 10.0 GWhOut 4.7 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.10GWPumping

Generated 11.0 GWhPumped 13.5 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.