Electricity Live

Great Britain’s electricity on Friday 12 December 2025

On Friday 12 December, demand averaged 34.0 GW. Renewables supplied 31%.

34.0GW AVERAGEWind9.98 GW27%Hydro0.97 GW3%Biomass3.09 GW8%Solar0.43 GW1%Gas14.84 GW40%Imports4.34 GW12%Nuclear3.61 GW10%34.0GW AVERAGE27%8%40%12%10%
Price
£80.90/MWh
Day average £80.90
Demand34.0GW
Generation 32.9Transfers 1.1
Fossil fuels40%
Renewables31%
Other30%
Carbon intensityHigh
170g/kWh
0Day average 170300
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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 Friday 12 December 2025, gas supplied 40% of Great Britain’s electricity and wind 27%. Demand peaked at 40.1 GW at 12:40. Carbon intensity averaged 170 g/kWh and the price £80.90/MWh. Wind generation peaked at 14.3 GW at 00:00. Solar generation peaked at 2.5 GW at 12:00. Carbon intensity was lowest at 00:00 (108 g/kWh) and highest at 07:00 (222 g/kWh). The wholesale price ranged from £60.98/MWh at 05:30 to £101.52/MWh at 07:30. Gas made 45% of the electricity generated in Great Britain, compared with 32% across 2025.

Charts

Generation, demand, price and carbon

Generation by sourceGW · daily average below
Solar 0.431.2%Wind 9.9826.8%Gas 14.8439.8%Hydro 0.972.6%Biomass 3.098.3%Nuclear 3.619.7%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 34.0avgGeneration 32.9avgTransfers 1.1avg
The day in figurespeaks, averages, totals
Peak demand40.1GW · 12:40
Low 25.1 · 05:10Avg 34.00–60 GW
Made in Great Britain97%of demand
Generation 32.9Transfers 1.1 GW
Net imports19GWh
In
95 Out
77
Zero-carbon share46%of generation
Nuclear 11%Hydro 3%Wind 30%Solar 1%

Transfers · Fri 12 Dec

Interconnectors and storage

On Friday 12 December 2025, Great Britain imported 95 GWh and exported 77 GWh through its interconnectors. The most came from France (64 GWh), and the most exports went to Denmark (25 GWh).

All interconnectors

Fri 12 Dec
Imported
95GWh
Exported
77GWh
Net in
19GWh
Average net flow
0.78GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.67GWExporting

In 0.3 GWhOut 16.4 GWh

Denmark

Viking Link

Average1.03GWExporting

In 0.0 GWhOut 24.7 GWh

France

IFA · IFA2 · ElecLink

Average2.66GWImporting

In 63.9 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.84GWExporting

In 0.0 GWhOut 20.2 GWh

Netherlands

BritNed

Average0.57GWExporting

In 1.8 GWhOut 15.5 GWh

Norway

North Sea Link

Average1.23GWImporting

In 29.5 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.34GWGenerating

Generated 8.6 GWhPumped 0.4 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.