Electricity Live

Great Britain’s electricity on Tuesday 12 December 2023

On Tuesday 12 December, demand averaged 34.6 GW. Renewables supplied 26%.

34.6GW AVERAGEWind8.92 GW24%Hydro0.40 GW1%Biomass2.65 GW7%Solar0.28 GW1%Gas15.56 GW43%Coal0.68 GW2%Imports3.41 GW9%Nuclear4.69 GW13%34.6GW AVERAGE24%7%43%9%13%
Price
£78.15/MWh
Day average £78.15
Demand34.6GW
Generation 33.2Transfers 1.4
Fossil fuels43%
Renewables26%
Other29%
Carbon intensityHigh
194g/kWh
0Day average 194300
Save as image
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 12 December 2023, gas supplied 43% of Great Britain’s electricity and wind 24%. Demand peaked at 41.3 GW at 18:35. Carbon intensity averaged 194 g/kWh and the price £78.15/MWh. Wind generation peaked at 13.7 GW at 07:20. Solar generation peaked at 1.6 GW at 11:00. Carbon intensity was lowest at 03:00 (112 g/kWh) and highest at 15:30 (246 g/kWh). The wholesale price ranged from £57.82/MWh at 04:30 to £95.19/MWh at 21:30. Gas made 47% of the electricity generated in Great Britain, compared with 36% across 2023.

Charts

Generation, demand, price and carbon

Generation by sourceGW · daily average below
Solar 0.280.8%Wind 8.9224.4%Gas 15.5642.5%Hydro 0.401.1%Biomass 2.657.2%Nuclear 4.6912.8%Coal 0.681.9%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 34.6avgGeneration 33.2avgTransfers 1.4avg
The day in figurespeaks, averages, totals
Peak demand41.3GW · 18:35
Low 24.3 · 04:35Avg 34.60–60 GW
Made in Great Britain96%of demand
Generation 33.2Transfers 1.4 GW
Net imports35GWh
In
79 Out
44
Zero-carbon share43%of generation
Nuclear 14%Hydro 1%Wind 27%Solar 1%

Transfers · Tue 12 Dec

Interconnectors and storage

On Tuesday 12 December 2023, Great Britain imported 79 GWh and exported 44 GWh through its interconnectors. The most came from France (51 GWh), and the most exports went to Ireland (20 GWh).

All interconnectors

Tue 12 Dec
Imported
79GWh
Exported
44GWh
Net in
35GWh
Average net flow
1.45GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.41GWImporting

In 14.3 GWhOut 4.5 GWh

Denmark

Viking Link

Average0.03GWExporting

In 0.0 GWhOut 0.7 GWh

France

IFA · IFA2 · ElecLink

Average2.13GWImporting

In 51.1 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.82GWExporting

In 0.0 GWhOut 19.7 GWh

Netherlands

BritNed

Average0.03GWExporting

In 6.6 GWhOut 7.2 GWh

Norway

North Sea Link

Average0.21GWExporting

In 6.6 GWhOut 11.7 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.02GWPumping

Generated 3.3 GWhPumped 3.8 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.