Electricity Live

Great Britain’s electricity on Tuesday 14 December 2021

On Tuesday 14 December, demand averaged 35.9 GW. Renewables supplied 30%.

35.9GW AVERAGEWind10.32 GW28%Hydro0.55 GW1%Biomass2.88 GW8%Solar0.22 GW1%Gas14.26 GW38%Coal1.25 GW3%Imports2.78 GW7%Nuclear5.11 GW14%35.9GW AVERAGE28%8%38%7%14%
Price
£215.31/MWh
Day average £215.31
Demand35.9GW
Generation 34.6Transfers 1.3
Fossil fuels38%
Renewables30%
Other29%
Carbon intensityModerate
211g/kWh
0Day average 211300
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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 Tuesday 14 December 2021, gas supplied 38% of Great Britain’s electricity and wind 28%. Demand peaked at 44.7 GW at 17:00. Carbon intensity averaged 211 g/kWh and the price £215.31/MWh. Wind generation peaked at 13.6 GW at 20:45. Solar generation peaked at 1.3 GW at 11:00. Carbon intensity was lowest at 23:30 (117 g/kWh) and highest at 08:00 (243 g/kWh). The wholesale price ranged from £95.84/MWh at 23:00 to £274.62/MWh at 18:30. Gas made 41% 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 0.220.6%Wind 10.3227.6%Gas 14.2638.2%Hydro 0.551.5%Biomass 2.887.7%Nuclear 5.1113.7%Coal 1.253.3%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 35.9avgGeneration 34.6avgTransfers 1.3avg
The day in figurespeaks, averages, totals
Peak demand44.7GW · 17:00
Low 25.1 · 04:30Avg 35.90–60 GW
Made in Great Britain96%of demand
Generation 34.6Transfers 1.3 GW
Net imports36GWh
In
64 Out
27
Zero-carbon share47%of generation
Nuclear 15%Hydro 2%Wind 30%Solar 1%

Transfers · Tue 14 Dec

Interconnectors and storage

On Tuesday 14 December 2021, Great Britain imported 64 GWh and exported 27 GWh through its interconnectors. The most came from Ireland (18 GWh), and the most exports went to France (26 GWh).

All interconnectors

Tue 14 Dec
Imported
64GWh
Exported
27GWh
Net in
36GWh
Average net flow
1.52GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.43GWImporting

In 11.4 GWhOut 1.2 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average1.08GWExporting

In 0.0 GWhOut 25.9 GWh

Ireland

Moyle · East–West · Greenlink

Average0.75GWImporting

In 18.0 GWhOut 0.0 GWh

Netherlands

BritNed

Average0.73GWImporting

In 17.5 GWhOut 0.0 GWh

Norway

North Sea Link

Average0.69GWImporting

In 16.6 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.25GWPumping

Generated 3.2 GWhPumped 9.2 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.