Electricity Live

Great Britain’s electricity on Tuesday 30 December 2025

On Tuesday 30 December, demand averaged 33.0 GW. Renewables supplied 27%.

33.0GW AVERAGEWind7.96 GW23%Hydro0.45 GW1%Biomass2.96 GW9%Solar0.69 GW2%Gas11.69 GW34%Imports6.57 GW19%Nuclear4.01 GW12%33.0GW AVERAGE23%9%34%19%12%
Price
£87.05/MWh
Day average £87.05
Demand33.0GW
Generation 27.8Transfers 5.3
Fossil fuels34%
Renewables27%
Other39%
Carbon intensityHigh
161g/kWh
0Day average 161300
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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 30 December 2025, gas supplied 34% of Great Britain’s electricity and wind 23%. Demand peaked at 39.5 GW at 18:15. Carbon intensity averaged 161 g/kWh and the price £87.05/MWh. Wind generation peaked at 10.8 GW at 02:50. Solar generation peaked at 4.1 GW at 12:00. Carbon intensity was lowest at 02:00 (85 g/kWh) and highest at 16:30 (207 g/kWh). The wholesale price ranged from £73.34/MWh at 03:30 to £108.64/MWh at 18:30. Gas made 42% 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 0.692.0%Wind 7.9623.2%Gas 11.6934.1%Hydro 0.451.3%Biomass 2.968.6%Nuclear 4.0111.7%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 33.0avgGeneration 27.8avgTransfers 5.3avg
The day in figurespeaks, averages, totals
Peak demand39.5GW · 18:15
Low 24.7 · 04:05Avg 33.00–40 GW
Made in Great Britain84%of demand
Generation 27.8Transfers 5.3 GW
Net imports125GWh
In
153 Out
28
Zero-carbon share47%of generation
Nuclear 14%Hydro 2%Wind 29%Solar 2%

Transfers · Tue 30 Dec

Interconnectors and storage

On Tuesday 30 December 2025, Great Britain imported 153 GWh and exported 28 GWh through its interconnectors. The most came from France (62 GWh), and the most exports went to Ireland (27 GWh).

All interconnectors

Tue 30 Dec
Imported
153GWh
Exported
28GWh
Net in
125GWh
Average net flow
5.22GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.73GWImporting

In 17.7 GWhOut 0.1 GWh

Denmark

Viking Link

Average1.07GWImporting

In 25.6 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average2.60GWImporting

In 62.3 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average1.15GWExporting

In 0.0 GWhOut 27.5 GWh

Netherlands

BritNed

Average0.57GWImporting

In 14.2 GWhOut 0.5 GWh

Norway

North Sea Link

Average1.40GWImporting

In 33.5 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.05GWGenerating

Generated 4.2 GWhPumped 3.0 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.