Electricity Live

Great Britain’s electricity on Thursday 15 May 2025

On Thursday 15 May, demand averaged 28.1 GW. Renewables supplied 38%.

28.1GW AVERAGEWind8.24 GW28%Hydro0.17 GW1%Biomass1.44 GW5%Solar2.93 GW10%Gas6.37 GW22%Imports5.25 GW18%Nuclear5.18 GW18%28.1GW AVERAGE28%10%22%18%18%
Price
£85.99/MWh
Day average £85.99
Demand28.1GW
Generation 24.3Transfers 3.7
Fossil fuels22%
Renewables38%
Other40%
Carbon intensityLow
102g/kWh
0Day average 102300
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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 15 May 2025, wind supplied 28% of Great Britain’s electricity and gas 22%. Demand peaked at 32.6 GW at 13:40. Carbon intensity averaged 102 g/kWh and the price £85.99/MWh. Wind generation peaked at 10.3 GW at 02:45. Solar generation peaked at 8.5 GW at 12:30. Carbon intensity was lowest at 02:30 (60 g/kWh) and highest at 19:30 (161 g/kWh). The wholesale price ranged from £67.65/MWh at 05:00 to £113.68/MWh at 20:30. Wind made 34% 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 2.939.9%Wind 8.2427.8%Gas 6.3721.5%Hydro 0.170.6%Biomass 1.444.9%Nuclear 5.1817.5%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 28.1avgGeneration 24.3avgTransfers 3.7avg
The day in figurespeaks, averages, totals
Peak demand32.6GW · 13:40
Low 21.2 · 04:15Avg 28.10–40 GW
Made in Great Britain87%of demand
Generation 24.3Transfers 3.7 GW
Net imports88GWh
In
123 Out
36
Zero-carbon share68%of generation
Nuclear 21%Hydro 1%Wind 34%Solar 12%

Transfers · Thu 15 May

Interconnectors and storage

On Thursday 15 May 2025, Great Britain imported 123 GWh and exported 36 GWh through its interconnectors. The most came from France (79 GWh), and the most exports went to Ireland (30 GWh).

All interconnectors

Thu 15 May
Imported
123GWh
Exported
36GWh
Net in
88GWh
Average net flow
3.66GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.22GWImporting

In 11.3 GWhOut 6.0 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average3.28GWImporting

In 78.8 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average1.23GWExporting

In 0.0 GWhOut 29.6 GWh

Netherlands

BritNed

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Norway

North Sea Link

Average1.39GWImporting

In 33.3 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.07GWGenerating

Generated 2.6 GWhPumped 1.0 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.