Electricity Live

Great Britain’s electricity on Tuesday 9 December 2025

On Tuesday 9 December, demand averaged 35.5 GW. Renewables supplied 58%.

35.5GW AVERAGEWind20.87 GW55%Hydro0.69 GW2%Biomass2.41 GW6%Solar0.15 GW0%Gas4.99 GW13%Imports4.95 GW13%Nuclear3.57 GW9%35.5GW AVERAGE55%13%13%9%
Price
£68.41/MWh
Day average £68.41
Demand35.5GW
Generation 32.7Transfers 2.9
Fossil fuels13%
Renewables58%
Other29%
Carbon intensityLow
69g/kWh
0Day average 69300
Save as image
Recorded half-hourRecorded half-hourRecorded half-hourRecorded half-hourRecorded half-hourRecorded half-hourRecorded half-hourRecorded half-hourRecorded half-hourRecorded half-hour

On the record lists

All records

Key moments

On Tuesday 9 December 2025, wind supplied 55% of Great Britain’s electricity and gas 13%. Demand peaked at 43.4 GW at 17:05. Carbon intensity averaged 69 g/kWh and the price £68.41/MWh. Wind generation peaked at 23.5 GW at 14:05. Solar generation peaked at 0.8 GW at 12:00. Carbon intensity was lowest at 03:00 (40 g/kWh) and highest at 16:00 (106 g/kWh). The wholesale price ranged from £12.87/MWh at 23:30 to £93.83/MWh at 16:30. Wind made 64% 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 0.150.4%Wind 20.8755.5%Gas 4.9913.3%Hydro 0.691.8%Biomass 2.416.4%Nuclear 3.579.5%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 35.5avgGeneration 32.7avgTransfers 2.9avg
The day in figurespeaks, averages, totals
Peak demand43.4GW · 17:05
Low 26.3 · 04:55Avg 35.50–60 GW
Made in Great Britain92%of demand
Generation 32.7Transfers 2.9 GW
Net imports72GWh
In
114 Out
41
Zero-carbon share77%of generation
Nuclear 11%Hydro 2%Wind 64%Solar 0%

Transfers · Tue 9 Dec

Interconnectors and storage

On Tuesday 9 December 2025, Great Britain imported 114 GWh and exported 41 GWh through its interconnectors. The most came from France (83 GWh), and the most exports went to Denmark (14 GWh).

All interconnectors

Tue 9 Dec
Imported
114GWh
Exported
41GWh
Net in
72GWh
Average net flow
3.02GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.03GWImporting

In 7.7 GWhOut 7.0 GWh

Denmark

Viking Link

Average0.36GWExporting

In 5.3 GWhOut 14.0 GWh

France

IFA · IFA2 · ElecLink

Average3.47GWImporting

In 83.2 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.17GWExporting

In 2.3 GWhOut 6.4 GWh

Netherlands

BritNed

Average0.39GWExporting

In 2.7 GWhOut 12.0 GWh

Norway

North Sea Link

Average0.45GWImporting

In 12.4 GWhOut 1.6 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.16GWPumping

Generated 5.1 GWhPumped 8.9 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.