Electricity Live

Great Britain’s electricity on Saturday 4 December 2021

On Saturday 4 December, demand averaged 34.4 GW. Renewables supplied 42%.

34.4GW AVERAGEWind13.42 GW38%Hydro0.49 GW1%Biomass1.96 GW6%Solar0.65 GW2%Gas10.02 GW29%Coal0.08 GW0%Imports3.22 GW9%Nuclear5.12 GW15%34.4GW AVERAGE38%29%9%15%
Price
£152.56/MWh
Day average £152.56
Demand34.4GW
Generation 31.7Transfers 2.7
Fossil fuels29%
Renewables42%
Other29%
Carbon intensityModerate
143g/kWh
0Day average 143300
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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 Saturday 4 December 2021, wind supplied 38% of Great Britain’s electricity and gas 29%. Demand peaked at 42.8 GW at 17:35. Carbon intensity averaged 143 g/kWh and the price £152.56/MWh. Wind generation peaked at 17.7 GW at 14:40. Solar generation peaked at 3.8 GW at 11:00. Carbon intensity was lowest at 23:30 (96 g/kWh) and highest at 00:30 (176 g/kWh). The wholesale price ranged from £0.00/MWh at 05:00 to £213.96/MWh at 07:30. Wind made 42% 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 0.651.9%Wind 13.4238.4%Gas 10.0228.7%Hydro 0.491.4%Biomass 1.965.6%Nuclear 5.1214.6%Coal 0.080.2%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 34.4avgGeneration 31.7avgTransfers 2.7avg
The day in figurespeaks, averages, totals
Peak demand42.8GW · 17:35
Low 25.2 · 04:25Avg 34.40–60 GW
Made in Great Britain92%of demand
Generation 31.7Transfers 2.7 GW
Net imports71GWh
In
76 Out
5
Zero-carbon share62%of generation
Nuclear 16%Hydro 2%Wind 42%Solar 2%

Transfers · Sat 4 Dec

Interconnectors and storage

On Saturday 4 December 2021, Great Britain imported 76 GWh and exported 5 GWh through its interconnectors. The most came from Netherlands (21 GWh), and the most exports went to France (5 GWh).

All interconnectors

Sat 4 Dec
Imported
76GWh
Exported
5GWh
Net in
71GWh
Average net flow
2.96GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.72GWImporting

In 17.6 GWhOut 0.2 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average0.39GWImporting

In 14.0 GWhOut 4.6 GWh

Ireland

Moyle · East–West · Greenlink

Average0.27GWImporting

In 6.4 GWhOut 0.0 GWh

Netherlands

BritNed

Average0.88GWImporting

In 21.2 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 1.4 GWhPumped 7.5 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.