Electricity Live

Great Britain’s electricity on Tuesday 28 December 2021

On Tuesday 28 December, demand averaged 31.1 GW. Renewables supplied 23%.

31.1GW AVERAGEWind6.86 GW22%Hydro0.33 GW1%Biomass2.69 GW9%Solar0.21 GW1%Gas9.75 GW31%Imports4.91 GW16%Nuclear6.80 GW22%31.1GW AVERAGE22%9%31%16%22%
Price
£189.96/MWh
Day average £189.96
Demand31.1GW
Generation 26.6Transfers 4.4
Fossil fuels31%
Renewables23%
Other46%
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 Tuesday 28 December 2021, gas supplied 31% of Great Britain’s electricity and wind 22%. Demand peaked at 39.9 GW at 17:25. Carbon intensity averaged 153 g/kWh and the price £189.96/MWh. Wind generation peaked at 8.9 GW at 14:25. Solar generation peaked at 1.2 GW at 11:00. Carbon intensity was lowest at 01:30 (110 g/kWh) and highest at 19:00 (192 g/kWh). The wholesale price ranged from £162.75/MWh at 02:00 to £215.13/MWh at 09:30. Gas made 37% 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 0.210.7%Wind 6.8621.7%Gas 9.7530.9%Hydro 0.331.0%Biomass 2.698.5%Nuclear 6.8021.5%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 31.1avgGeneration 26.6avgTransfers 4.4avg
The day in figurespeaks, averages, totals
Peak demand39.9GW · 17:25
Low 22.5 · 04:55Avg 31.10–40 GW
Made in Great Britain86%of demand
Generation 26.6Transfers 4.4 GW
Net imports106GWh
In
113 Out
7
Zero-carbon share53%of generation
Nuclear 26%Hydro 1%Wind 26%Solar 1%

Transfers · Tue 28 Dec

Interconnectors and storage

On Tuesday 28 December 2021, Great Britain imported 113 GWh and exported 7 GWh through its interconnectors. The most came from France (48 GWh), and the most exports went to Ireland (7 GWh).

All interconnectors

Tue 28 Dec
Imported
113GWh
Exported
7GWh
Net in
106GWh
Average net flow
4.41GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average1.00GWImporting

In 24.0 GWhOut 0.0 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average1.99GWImporting

In 47.8 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.20GWExporting

In 2.2 GWhOut 7.0 GWh

Netherlands

BritNed

Average1.05GWImporting

In 25.1 GWhOut 0.0 GWh

Norway

North Sea Link

Average0.57GWImporting

In 13.7 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.00GWIdle

Generated 5.2 GWhPumped 5.1 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.