Electricity Live

Great Britain’s electricity on Saturday 10 May 2025

On Saturday 10 May, demand averaged 25.5 GW. Renewables supplied 40%.

25.5GW AVERAGEWind6.02 GW22%Hydro0.13 GW0%Biomass1.92 GW7%Solar4.56 GW17%Gas4.44 GW17%Imports5.86 GW22%Nuclear3.84 GW14%25.5GW AVERAGE22%7%17%17%22%14%
Price
£77.27/MWh
Day average £77.27
Demand25.5GW
Generation 20.9Transfers 4.6
Fossil fuels17%
Renewables40%
Other43%
Carbon intensityModerate
97g/kWh
0Day average 97300
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Recorded 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 Saturday 10 May 2025, wind supplied 22% of Great Britain’s electricity and solar 17%. Demand peaked at 29.6 GW at 10:30. Carbon intensity averaged 97 g/kWh and the price £77.27/MWh. Wind generation peaked at 9.4 GW at 22:00. Solar generation peaked at 13.2 GW at 12:00. Carbon intensity was lowest at 15:00 (48 g/kWh) and highest at 05:00 (133 g/kWh). The wholesale price ranged from £46.81/MWh at 17:30 to £98.90/MWh at 20:30. Wind made 29% 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 4.5617.0%Wind 6.0222.5%Gas 4.4416.6%Hydro 0.130.5%Biomass 1.927.2%Nuclear 3.8414.3%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 25.5avgGeneration 20.9avgTransfers 4.6avg
The day in figurespeaks, averages, totals
Peak demand29.6GW · 10:30
Low 19.7 · 05:15Avg 25.50–30 GW
Made in Great Britain82%of demand
Generation 20.9Transfers 4.6 GW
Net imports111GWh
In
140 Out
29
Zero-carbon share70%of generation
Nuclear 18%Hydro 1%Wind 29%Solar 22%

Transfers · Sat 10 May

Interconnectors and storage

On Saturday 10 May 2025, Great Britain imported 140 GWh and exported 29 GWh through its interconnectors. The most came from France (77 GWh), and the most exports went to Ireland (21 GWh).

All interconnectors

Sat 10 May
Imported
140GWh
Exported
29GWh
Net in
111GWh
Average net flow
4.63GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.58GWImporting

In 14.1 GWhOut 0.2 GWh

Denmark

Viking Link

Average0.31GWImporting

In 10.6 GWhOut 3.2 GWh

France

IFA · IFA2 · ElecLink

Average3.23GWImporting

In 77.4 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.86GWExporting

In 0.0 GWhOut 20.7 GWh

Netherlands

BritNed

Average0.16GWImporting

In 9.1 GWhOut 5.3 GWh

Norway

North Sea Link

Average1.21GWImporting

In 29.2 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.01GWPumping

Generated 0.3 GWhPumped 0.6 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.