Electricity Live

Great Britain’s electricity on Tuesday 13 May 2025

On Tuesday 13 May, demand averaged 28.2 GW. Renewables supplied 35%.

28.2GW AVERAGEWind5.57 GW19%Hydro0.17 GW1%Biomass2.66 GW9%Solar4.49 GW15%Gas6.73 GW23%Imports5.22 GW18%Nuclear4.66 GW16%28.2GW AVERAGE19%9%15%23%18%16%
Price
£85.85/MWh
Day average £85.85
Demand28.2GW
Generation 24.3Transfers 3.9
Fossil fuels23%
Renewables35%
Other43%
Carbon intensityModerate
115g/kWh
0Day average 115300
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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 13 May 2025, gas supplied 23% of Great Britain’s electricity and wind 19%. Demand peaked at 34.6 GW at 12:15. Carbon intensity averaged 115 g/kWh and the price £85.85/MWh. Wind generation peaked at 7.6 GW at 00:00. Solar generation peaked at 13.3 GW at 12:00. Carbon intensity was lowest at 13:00 (65 g/kWh) and highest at 06:30 (154 g/kWh). The wholesale price ranged from £52.79/MWh at 13:30 to £121.03/MWh at 19:30. Gas made 28% 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 4.4915.2%Wind 5.5718.9%Gas 6.7322.8%Hydro 0.170.6%Biomass 2.669.0%Nuclear 4.6615.8%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 28.2avgGeneration 24.3avgTransfers 3.9avg
The day in figurespeaks, averages, totals
Peak demand34.6GW · 12:15
Low 20.9 · 04:40Avg 28.20–40 GW
Made in Great Britain86%of demand
Generation 24.3Transfers 3.9 GW
Net imports93GWh
In
124 Out
31
Zero-carbon share61%of generation
Nuclear 19%Hydro 1%Wind 23%Solar 18%

Transfers · Tue 13 May

Interconnectors and storage

On Tuesday 13 May 2025, Great Britain imported 124 GWh and exported 31 GWh through its interconnectors. The most came from France (82 GWh), and the most exports went to Ireland (25 GWh).

All interconnectors

Tue 13 May
Imported
124GWh
Exported
31GWh
Net in
93GWh
Average net flow
3.86GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.14GWImporting

In 9.8 GWhOut 6.6 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average3.44GWImporting

In 82.5 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average1.03GWExporting

In 0.0 GWhOut 24.7 GWh

Netherlands

BritNed

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Norway

North Sea Link

Average1.32GWImporting

In 31.6 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.02GWGenerating

Generated 1.5 GWhPumped 0.9 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.