Electricity Live

Great Britain’s electricity on Saturday 3 May 2025

On Saturday 3 May, demand averaged 25.6 GW. Renewables supplied 48%.

25.6GW AVERAGEWind9.32 GW35%Hydro0.11 GW0%Biomass1.72 GW6%Solar3.49 GW13%Gas3.42 GW13%Imports5.70 GW21%Nuclear3.21 GW12%25.6GW AVERAGE35%13%13%21%12%
Price
£56.03/MWh
Day average £56.03
Demand25.6GW
Generation 21.3Transfers 4.3
Fossil fuels13%
Renewables48%
Other39%
Carbon intensityLow
75g/kWh
0Day average 75300
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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 Saturday 3 May 2025, wind supplied 35% of Great Britain’s electricity and solar 13%. Demand peaked at 30.0 GW at 12:25. Carbon intensity averaged 75 g/kWh and the price £56.03/MWh. Wind generation peaked at 13.7 GW at 17:50. Solar generation peaked at 10.5 GW at 12:00. Carbon intensity was lowest at 16:30 (44 g/kWh) and highest at 00:00 (130 g/kWh). The wholesale price ranged from £14.96/MWh at 12:00 to £83.28/MWh at 20:30. Wind made 44% 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 3.4913.0%Wind 9.3234.5%Gas 3.4212.7%Hydro 0.110.4%Biomass 1.726.4%Nuclear 3.2111.9%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 25.6avgGeneration 21.3avgTransfers 4.3avg
The day in figurespeaks, averages, totals
Peak demand30.0GW · 12:25
Low 19.2 · 05:10Avg 25.60–30 GW
Made in Great Britain83%of demand
Generation 21.3Transfers 4.3 GW
Net imports105GWh
In
137 Out
32
Zero-carbon share76%of generation
Nuclear 15%Hydro 1%Wind 44%Solar 16%

Transfers · Sat 3 May

Interconnectors and storage

On Saturday 3 May 2025, Great Britain imported 137 GWh and exported 32 GWh through its interconnectors. The most came from France (83 GWh), and the most exports went to Ireland (19 GWh).

All interconnectors

Sat 3 May
Imported
137GWh
Exported
32GWh
Net in
105GWh
Average net flow
4.37GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.10GWImporting

In 6.9 GWhOut 4.6 GWh

Denmark

Viking Link

Average0.40GWImporting

In 14.2 GWhOut 4.7 GWh

France

IFA · IFA2 · ElecLink

Average3.48GWImporting

In 83.4 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.78GWExporting

In 0.0 GWhOut 18.8 GWh

Netherlands

BritNed

Average0.04GWImporting

In 4.7 GWhOut 3.7 GWh

Norway

North Sea Link

Average1.14GWImporting

In 27.4 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.09GWPumping

Generated 0.3 GWhPumped 2.4 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.