Electricity Live

Great Britain’s electricity on Sunday 31 December 2023

On Sunday 31 December, demand averaged 28.9 GW. Renewables supplied 48%.

28.9GW AVERAGEWind13.31 GW44%Hydro0.82 GW3%Biomass0.91 GW3%Solar0.33 GW1%Gas4.35 GW14%Coal0.14 GW0%Imports5.58 GW19%Nuclear4.67 GW16%28.9GW AVERAGE44%14%19%16%
Price
£39.56/MWh
Day average £39.56
Demand28.9GW
Generation 24.5Transfers 4.3
Fossil fuels14%
Renewables48%
Other37%
Carbon intensityLow
71g/kWh
0Day average 71300
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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 Sunday 31 December 2023, wind supplied 44% of Great Britain’s electricity and nuclear 16%. Demand peaked at 35.6 GW at 16:55. Carbon intensity averaged 71 g/kWh and the price £39.56/MWh. Wind generation peaked at 16.2 GW at 00:00. Solar generation peaked at 1.9 GW at 10:30. Carbon intensity was lowest at 01:00 (52 g/kWh) and highest at 17:00 (101 g/kWh). The wholesale price ranged from −£15.75/MWh at 04:00 to £88.93/MWh at 17:00. The price was below zero for 5.5 hours. Wind made 54% of the electricity generated in Great Britain, compared with 33% across 2023.

Charts

Generation, demand, price and carbon

Generation by sourceGW · daily average below
Solar 0.331.1%Wind 13.3144.2%Gas 4.3514.4%Hydro 0.822.7%Biomass 0.913.0%Nuclear 4.6715.5%Coal 0.140.5%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 28.9avgGeneration 24.5avgTransfers 4.3avg
The day in figurespeaks, averages, totals
Peak demand35.6GW · 16:55
Low 21.5 · 05:25Avg 28.90–40 GW
Made in Great Britain85%of demand
Generation 24.5Transfers 4.3 GW
Net imports108GWh
In
121 Out
13
Zero-carbon share78%of generation
Nuclear 19%Hydro 3%Wind 54%Solar 1%

Transfers · Sun 31 Dec

Interconnectors and storage

On Sunday 31 December 2023, Great Britain imported 121 GWh and exported 13 GWh through its interconnectors. The most came from France (52 GWh), and the most exports went to Ireland (6 GWh).

All interconnectors

Sun 31 Dec
Imported
121GWh
Exported
13GWh
Net in
108GWh
Average net flow
4.51GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.73GWImporting

In 18.5 GWhOut 0.9 GWh

Denmark

Viking Link

Average0.59GWImporting

In 14.3 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average2.18GWImporting

In 52.4 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.22GWExporting

In 0.5 GWhOut 5.9 GWh

Netherlands

BritNed

Average0.62GWImporting

In 16.2 GWhOut 1.2 GWh

Norway

North Sea Link

Average0.59GWImporting

In 19.4 GWhOut 5.2 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.17GWPumping

Generated 12.5 GWhPumped 16.5 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.