Electricity Live

Great Britain’s electricity on Wednesday 22 December 2021

On Wednesday 22 December, demand averaged 37.3 GW. Renewables supplied 17%.

37.3GW AVERAGEWind5.88 GW15%Hydro0.47 GW1%Biomass3.03 GW8%Solar0.20 GW1%Gas18.48 GW47%Coal1.40 GW4%Imports3.06 GW8%Nuclear6.51 GW17%37.3GW AVERAGE15%8%47%8%17%
Price
£397.13/MWh
Day average £397.13
Demand37.3GW
Generation 36.0Transfers 1.3
Fossil fuels47%
Renewables17%
Other32%
Carbon intensityHigh
250g/kWh
0Day average 250300
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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 Wednesday 22 December 2021, gas supplied 47% of Great Britain’s electricity and nuclear 17%. Demand peaked at 44.9 GW at 17:30. Carbon intensity averaged 250 g/kWh and the price £397.13/MWh. Wind generation peaked at 7.9 GW at 17:40. Solar generation peaked at 1.3 GW at 10:30. Carbon intensity was lowest at 23:30 (191 g/kWh) and highest at 08:00 (271 g/kWh). The wholesale price ranged from £298.22/MWh at 03:30 to £508.97/MWh at 16:30. Gas made 51% 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 0.200.5%Wind 5.8815.1%Gas 18.4847.4%Hydro 0.471.2%Biomass 3.037.8%Nuclear 6.5116.7%Coal 1.403.6%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 37.3avgGeneration 36.0avgTransfers 1.3avg
The day in figurespeaks, averages, totals
Peak demand44.9GW · 17:30
Low 26.7 · 04:00Avg 37.30–60 GW
Made in Great Britain96%of demand
Generation 36.0Transfers 1.3 GW
Net imports32GWh
In
65 Out
33
Zero-carbon share36%of generation
Nuclear 18%Hydro 1%Wind 16%Solar 1%

Transfers · Wed 22 Dec

Interconnectors and storage

On Wednesday 22 December 2021, Great Britain imported 65 GWh and exported 33 GWh through its interconnectors. The most came from Netherlands (21 GWh), and the most exports went to France (30 GWh).

All interconnectors

Wed 22 Dec
Imported
65GWh
Exported
33GWh
Net in
32GWh
Average net flow
1.32GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.53GWImporting

In 15.3 GWhOut 2.6 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average1.27GWExporting

In 0.0 GWhOut 30.4 GWh

Ireland

Moyle · East–West · Greenlink

Average0.69GWImporting

In 16.5 GWhOut 0.0 GWh

Netherlands

BritNed

Average0.88GWImporting

In 21.4 GWhOut 0.2 GWh

Norway

North Sea Link

Average0.48GWImporting

In 11.6 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.02GWGenerating

Generated 8.7 GWhPumped 8.2 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.