Electricity Live

Great Britain’s electricity on Wednesday 18 December 2024

On Wednesday 18 December, demand averaged 34.7 GW. Renewables supplied 53%.

34.7GW AVERAGEWind18.55 GW50%Hydro0.71 GW2%Biomass1.99 GW5%Solar0.29 GW1%Gas6.20 GW17%Imports4.65 GW13%Nuclear4.55 GW12%34.7GW AVERAGE50%17%13%12%
Price
£55.84/MWh
Day average £55.84
Demand34.7GW
Generation 32.3Transfers 2.4
Fossil fuels17%
Renewables53%
Other30%
Carbon intensityLow
81g/kWh
0Day average 81300
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Recorded half-hourRecorded half-hourRecorded half-hourRecorded half-hourRecorded half-hourRecorded half-hourRecorded half-hourRecorded half-hourRecorded half-hourRecorded half-hour

Records set on this day

All records

Key moments

On Wednesday 18 December 2024, wind supplied 50% of Great Britain’s electricity and gas 17%. Demand peaked at 40.9 GW at 17:25. Carbon intensity averaged 81 g/kWh and the price £55.84/MWh. Wind generation peaked at 22.6 GW at 03:35. Solar generation peaked at 2.1 GW at 11:00. Carbon intensity was lowest at 03:30 (47 g/kWh) and highest at 19:00 (139 g/kWh). The wholesale price ranged from £1.92/MWh at 04:30 to £104.54/MWh at 18:30. Wind made 57% of the electricity generated in Great Britain, compared with 35% across 2024.

Charts

Generation, demand, price and carbon

Generation by sourceGW · daily average below
Solar 0.290.8%Wind 18.5550.2%Gas 6.2016.8%Hydro 0.711.9%Biomass 1.995.4%Nuclear 4.5512.3%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 34.7avgGeneration 32.3avgTransfers 2.4avg
The day in figurespeaks, averages, totals
Peak demand40.9GW · 17:25
Low 25.9 · 04:25Avg 34.70–60 GW
Made in Great Britain93%of demand
Generation 32.3Transfers 2.4 GW
Net imports58GWh
In
103 Out
45
Zero-carbon share75%of generation
Nuclear 14%Hydro 2%Wind 57%Solar 1%

Transfers · Wed 18 Dec

Interconnectors and storage

On Wednesday 18 December 2024, Great Britain imported 103 GWh and exported 45 GWh through its interconnectors. The most came from France (42 GWh), and the most exports went to France (22 GWh).

All interconnectors

Wed 18 Dec
Imported
103GWh
Exported
45GWh
Net in
58GWh
Average net flow
2.43GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.41GWImporting

In 16.2 GWhOut 6.5 GWh

Denmark

Viking Link

Average0.54GWImporting

In 16.9 GWhOut 3.8 GWh

France

IFA · IFA2 · ElecLink

Average0.86GWImporting

In 42.1 GWhOut 21.6 GWh

Ireland

Moyle · East–West · Greenlink

Average0.42GWExporting

In 1.9 GWhOut 12.0 GWh

Netherlands

BritNed

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Norway

North Sea Link

Average1.04GWImporting

In 25.8 GWhOut 0.8 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.05GWPumping

Generated 8.6 GWhPumped 9.7 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.