Electricity Live

Great Britain’s electricity on Tuesday 23 December 2025

On Tuesday 23 December, demand averaged 33.7 GW. Renewables supplied 39%.

33.7GW AVERAGEWind13.08 GW37%Hydro0.71 GW2%Biomass2.13 GW6%Solar0.06 GW0%Gas7.79 GW22%Imports7.95 GW23%Nuclear3.44 GW10%33.7GW AVERAGE37%22%23%10%
Price
£74.54/MWh
Day average £74.54
Demand33.7GW
Generation 27.2Transfers 6.5
Fossil fuels22%
Renewables39%
Other38%
Carbon intensityModerate
116g/kWh
0Day average 116300
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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 Tuesday 23 December 2025, wind supplied 37% of Great Britain’s electricity and gas 22%. Demand peaked at 40.0 GW at 16:20. Carbon intensity averaged 116 g/kWh and the price £74.54/MWh. Wind generation peaked at 16.0 GW at 22:05. Carbon intensity was lowest at 23:30 (70 g/kWh) and highest at 12:30 (146 g/kWh). The wholesale price ranged from £54.00/MWh at 23:30 to £88.82/MWh at 12:30. Wind made 48% of the electricity generated in Great Britain, compared with 35% across 2025.

Charts

Generation, demand, price and carbon

Generation by sourceGW · daily average below
Solar 0.060.2%Wind 13.0837.2%Gas 7.7922.2%Hydro 0.712.0%Biomass 2.136.1%Nuclear 3.449.8%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 33.7avgGeneration 27.2avgTransfers 6.5avg
The day in figurespeaks, averages, totals
Peak demand40.0GW · 16:20
Low 25.1 · 04:55Avg 33.70–60 GW
Made in Great Britain81%of demand
Generation 27.2Transfers 6.5 GW
Net imports151GWh
In
185 Out
34
Zero-carbon share64%of generation
Nuclear 13%Hydro 3%Wind 48%Solar 0%

Transfers · Tue 23 Dec

Interconnectors and storage

On Tuesday 23 December 2025, Great Britain imported 185 GWh and exported 34 GWh through its interconnectors. The most came from France (82 GWh), and the most exports went to Ireland (34 GWh).

All interconnectors

Tue 23 Dec
Imported
185GWh
Exported
34GWh
Net in
151GWh
Average net flow
6.31GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.86GWImporting

In 20.8 GWhOut 0.0 GWh

Denmark

Viking Link

Average1.24GWImporting

In 29.8 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average3.42GWImporting

In 82.0 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average1.41GWExporting

In 0.0 GWhOut 33.9 GWh

Netherlands

BritNed

Average0.80GWImporting

In 19.3 GWhOut 0.1 GWh

Norway

North Sea Link

Average1.40GWImporting

In 33.5 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.19GWGenerating

Generated 5.5 GWhPumped 1.0 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.