Electricity Live

Great Britain’s electricity on Thursday 4 December 2025

On Thursday 4 December, demand averaged 36.8 GW. Renewables supplied 39%.

36.8GW AVERAGEWind14.59 GW36%Hydro0.62 GW2%Biomass2.93 GW7%Solar0.26 GW1%Gas13.26 GW33%Imports4.41 GW11%Nuclear4.11 GW10%36.8GW AVERAGE36%7%33%11%10%
Price
£78.30/MWh
Day average £78.30
Demand36.8GW
Generation 35.8Transfers 1.0
Fossil fuels33%
Renewables39%
Other29%
Carbon intensityModerate
146g/kWh
0Day average 146300
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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 Thursday 4 December 2025, wind supplied 36% of Great Britain’s electricity and gas 33%. Demand peaked at 43.6 GW at 16:20. Carbon intensity averaged 146 g/kWh and the price £78.30/MWh. Wind generation peaked at 18.5 GW at 07:15. Solar generation peaked at 1.4 GW at 12:30. Carbon intensity was lowest at 04:00 (70 g/kWh) and highest at 19:30 (195 g/kWh). The wholesale price ranged from £67.91/MWh at 05:30 to £91.69/MWh at 18:30. Wind made 41% 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 0.260.7%Wind 14.5936.3%Gas 13.2633.0%Hydro 0.621.5%Biomass 2.937.3%Nuclear 4.1110.2%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 36.8avgGeneration 35.8avgTransfers 1.0avg
The day in figurespeaks, averages, totals
Peak demand43.6GW · 16:20
Low 27.8 · 04:05Avg 36.80–60 GW
Made in Great Britain97%of demand
Generation 35.8Transfers 1.0 GW
Net imports27GWh
In
99 Out
72
Zero-carbon share55%of generation
Nuclear 11%Hydro 2%Wind 41%Solar 1%

Transfers · Thu 4 Dec

Interconnectors and storage

On Thursday 4 December 2025, Great Britain imported 99 GWh and exported 72 GWh through its interconnectors. The most came from France (74 GWh), and the most exports went to Ireland (32 GWh).

All interconnectors

Thu 4 Dec
Imported
99GWh
Exported
72GWh
Net in
27GWh
Average net flow
1.12GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.17GWExporting

In 3.7 GWhOut 7.7 GWh

Denmark

Viking Link

Average1.05GWExporting

In 0.0 GWhOut 25.2 GWh

France

IFA · IFA2 · ElecLink

Average3.08GWImporting

In 74.0 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average1.33GWExporting

In 0.0 GWhOut 31.8 GWh

Netherlands

BritNed

Average0.10GWImporting

In 8.2 GWhOut 5.9 GWh

Norway

North Sea Link

Average0.49GWImporting

In 13.5 GWhOut 1.8 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.10GWPumping

Generated 6.5 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.