Electricity Live

Great Britain’s electricity on Sunday 25 May 2025

On Sunday 25 May, demand averaged 25.2 GW. Renewables supplied 68%.

25.2GW AVERAGEWind16.10 GW55%Hydro0.12 GW0%Biomass0.72 GW2%Solar3.87 GW13%Gas3.02 GW10%Imports0.78 GW3%Nuclear4.89 GW17%25.2GW AVERAGE55%13%10%17%
Price
£14.78/MWh
Day average £14.78
Demand25.2GW
Generation 28.7Transfers −3.5
Fossil fuels10%
Renewables68%
Other22%
Carbon intensityLow
51g/kWh
0Day average 51300
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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

Records set on this day

All records

Key moments

On Sunday 25 May 2025, wind supplied 55% of Great Britain’s electricity and nuclear 17%. Demand peaked at 31.1 GW at 13:35. Carbon intensity averaged 51 g/kWh and the price £14.78/MWh. Wind generation peaked at 18.3 GW at 17:10. Solar generation peaked at 11.9 GW at 13:30. Carbon intensity was lowest at 13:30 (30 g/kWh) and highest at 20:00 (83 g/kWh). The wholesale price ranged from −£7.63/MWh at 15:00 to £78.82/MWh at 22:00. The price was below zero for 10.5 hours. Wind made 56% 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 3.8713.1%Wind 16.1054.6%Gas 3.0210.2%Hydro 0.120.4%Biomass 0.722.4%Nuclear 4.8916.6%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 25.2avgGeneration 28.7avgTransfers −3.5avg
The day in figurespeaks, averages, totals
Peak demand31.1GW · 13:35
Low 18.1 · 05:05Avg 25.20–40 GW
Made in Great Britain114%of demand
Generation 28.7Transfers −3.5 GW
Net exports80GWh
In
18 Out
98
Zero-carbon share87%of generation
Nuclear 17%Hydro 0%Wind 56%Solar 13%

Transfers · Sun 25 May

Interconnectors and storage

On Sunday 25 May 2025, Great Britain imported 18 GWh and exported 98 GWh through its interconnectors. The most came from France (15 GWh), and the most exports went to France (27 GWh).

All interconnectors

Sun 25 May
Imported
18GWh
Exported
98GWh
Net out
80GWh
Average net flow
3.32GW out

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.61GWExporting

In 0.8 GWhOut 15.5 GWh

Denmark

Viking Link

Average0.18GWExporting

In 0.2 GWhOut 4.5 GWh

France

IFA · IFA2 · ElecLink

Average0.50GWExporting

In 14.9 GWhOut 26.7 GWh

Ireland

Moyle · East–West · Greenlink

Average0.42GWExporting

In 0.3 GWhOut 10.2 GWh

Netherlands

BritNed

Average0.68GWExporting

In 1.0 GWhOut 17.4 GWh

Norway

North Sea Link

Average0.94GWExporting

In 0.6 GWhOut 23.3 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.17GWPumping

Generated 0.9 GWhPumped 4.9 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.