Electricity Live

Great Britain’s electricity on Wednesday 15 December 2021

On Wednesday 15 December, demand averaged 35.1 GW. Renewables supplied 30%.

35.1GW AVERAGEWind10.14 GW28%Hydro0.59 GW2%Biomass2.90 GW8%Solar0.27 GW1%Gas13.90 GW38%Coal0.96 GW3%Imports2.94 GW8%Nuclear5.10 GW14%35.1GW AVERAGE28%8%38%8%14%
Price
£240.23/MWh
Day average £240.23
Demand35.1GW
Generation 33.9Transfers 1.2
Fossil fuels38%
Renewables30%
Other30%
Carbon intensityHigh
196g/kWh
0Day average 196300
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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 15 December 2021, gas supplied 38% of Great Britain’s electricity and wind 28%. Demand peaked at 43.3 GW at 16:55. Carbon intensity averaged 196 g/kWh and the price £240.23/MWh. Wind generation peaked at 13.1 GW at 00:30. Solar generation peaked at 1.7 GW at 11:30. Carbon intensity was lowest at 04:00 (111 g/kWh) and highest at 19:30 (250 g/kWh). The wholesale price ranged from £37.47/MWh at 03:30 to £330.01/MWh at 15:30. 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 0.270.7%Wind 10.1427.5%Gas 13.9037.8%Hydro 0.591.6%Biomass 2.907.9%Nuclear 5.1013.9%Coal 0.962.6%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 35.1avgGeneration 33.9avgTransfers 1.2avg
The day in figurespeaks, averages, totals
Peak demand43.3GW · 16:55
Low 24.7 · 04:15Avg 35.10–60 GW
Made in Great Britain96%of demand
Generation 33.9Transfers 1.2 GW
Net imports32GWh
In
65 Out
33
Zero-carbon share48%of generation
Nuclear 15%Hydro 2%Wind 30%Solar 1%

Transfers · Wed 15 Dec

Interconnectors and storage

On Wednesday 15 December 2021, Great Britain imported 65 GWh and exported 33 GWh through its interconnectors. The most came from Norway (17 GWh), and the most exports went to France (32 GWh).

All interconnectors

Wed 15 Dec
Imported
65GWh
Exported
33GWh
Net in
32GWh
Average net flow
1.35GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.56GWImporting

In 14.5 GWhOut 1.0 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average1.10GWExporting

In 5.2 GWhOut 31.7 GWh

Ireland

Moyle · East–West · Greenlink

Average0.54GWImporting

In 13.1 GWhOut 0.0 GWh

Netherlands

BritNed

Average0.65GWImporting

In 15.6 GWhOut 0.0 GWh

Norway

North Sea Link

Average0.69GWImporting

In 16.6 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.11GWPumping

Generated 5.7 GWhPumped 8.3 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.