Electricity Live

Great Britain’s electricity on Sunday 11 May 2025

On Sunday 11 May, demand averaged 25.4 GW. Renewables supplied 45%.

25.4GW AVERAGEWind7.65 GW29%Hydro0.14 GW1%Biomass1.45 GW5%Solar4.15 GW16%Gas3.59 GW13%Imports5.79 GW22%Nuclear3.92 GW15%25.4GW AVERAGE29%16%13%22%15%
Price
£69.75/MWh
Day average £69.75
Demand25.4GW
Generation 20.9Transfers 4.5
Fossil fuels13%
Renewables45%
Other42%
Carbon intensityLow
83g/kWh
0Day average 83300
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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 Sunday 11 May 2025, wind supplied 29% of Great Britain’s electricity and solar 16%. Demand peaked at 31.0 GW at 18:25. Carbon intensity averaged 83 g/kWh and the price £69.75/MWh. Wind generation peaked at 9.7 GW at 18:45. Solar generation peaked at 12.5 GW at 12:00. Carbon intensity was lowest at 11:30 (62 g/kWh) and highest at 20:30 (123 g/kWh). The wholesale price ranged from £34.71/MWh at 11:30 to £94.03/MWh at 19:30. Wind made 37% 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 4.1515.5%Wind 7.6528.6%Gas 3.5913.5%Hydro 0.140.5%Biomass 1.455.4%Nuclear 3.9214.7%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 25.4avgGeneration 20.9avgTransfers 4.5avg
The day in figurespeaks, averages, totals
Peak demand31.0GW · 18:25
Low 18.5 · 05:50Avg 25.40–40 GW
Made in Great Britain82%of demand
Generation 20.9Transfers 4.5 GW
Net imports109GWh
In
139 Out
30
Zero-carbon share76%of generation
Nuclear 19%Hydro 1%Wind 37%Solar 20%

Transfers · Sun 11 May

Interconnectors and storage

On Sunday 11 May 2025, Great Britain imported 139 GWh and exported 30 GWh through its interconnectors. The most came from France (79 GWh), and the most exports went to Ireland (25 GWh).

All interconnectors

Sun 11 May
Imported
139GWh
Exported
30GWh
Net in
109GWh
Average net flow
4.54GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.68GWImporting

In 16.3 GWhOut 0.0 GWh

Denmark

Viking Link

Average0.13GWImporting

In 6.5 GWhOut 3.4 GWh

France

IFA · IFA2 · ElecLink

Average3.29GWImporting

In 78.9 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average1.06GWExporting

In 0.0 GWhOut 25.5 GWh

Netherlands

BritNed

Average0.44GWImporting

In 11.4 GWhOut 1.0 GWh

Norway

North Sea Link

Average1.08GWImporting

In 25.8 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.09GWPumping

Generated 0.1 GWhPumped 2.2 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.