Electricity Live

Great Britain’s electricity on Wednesday 7 May 2025

On Wednesday 7 May, demand averaged 28.6 GW. Renewables supplied 23%.

28.6GW AVERAGEWind3.20 GW11%Hydro0.15 GW0%Biomass2.94 GW10%Solar3.51 GW12%Gas11.43 GW38%Imports5.26 GW17%Nuclear3.58 GW12%28.6GW AVERAGE11%10%12%38%17%12%
Price
£90.64/MWh
Day average £90.64
Demand28.6GW
Generation 24.8Transfers 3.7
Fossil fuels38%
Renewables23%
Other39%
Carbon intensityHigh
180g/kWh
0Day average 180300
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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 Wednesday 7 May 2025, gas supplied 38% of Great Britain’s electricity and nuclear 12%. Demand peaked at 34.0 GW at 12:20. Carbon intensity averaged 180 g/kWh and the price £90.64/MWh. Wind generation peaked at 5.2 GW at 22:10. Solar generation peaked at 11.5 GW at 12:00. Carbon intensity was lowest at 11:00 (112 g/kWh) and highest at 20:30 (221 g/kWh). The wholesale price ranged from £69.25/MWh at 14:00 to £126.04/MWh at 19:30. Gas made 46% 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 3.5111.7%Wind 3.2010.7%Gas 11.4338.0%Hydro 0.150.5%Biomass 2.949.8%Nuclear 3.5811.9%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 28.6avgGeneration 24.8avgTransfers 3.7avg
The day in figurespeaks, averages, totals
Peak demand34.0GW · 12:20
Low 20.9 · 04:25Avg 28.60–40 GW
Made in Great Britain87%of demand
Generation 24.8Transfers 3.7 GW
Net imports90GWh
In
125 Out
36
Zero-carbon share42%of generation
Nuclear 14%Hydro 1%Wind 13%Solar 14%

Transfers · Wed 7 May

Interconnectors and storage

On Wednesday 7 May 2025, Great Britain imported 125 GWh and exported 36 GWh through its interconnectors. The most came from France (84 GWh), and the most exports went to Ireland (23 GWh).

All interconnectors

Wed 7 May
Imported
125GWh
Exported
36GWh
Net in
90GWh
Average net flow
3.74GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.47GWImporting

In 11.9 GWhOut 0.7 GWh

Denmark

Viking Link

Average0.22GWImporting

In 9.4 GWhOut 4.2 GWh

France

IFA · IFA2 · ElecLink

Average3.50GWImporting

In 83.9 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.96GWExporting

In 0.0 GWhOut 23.1 GWh

Netherlands

BritNed

Average0.13GWExporting

In 4.5 GWhOut 7.7 GWh

Norway

North Sea Link

Average0.65GWImporting

In 15.7 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.01GWGenerating

Generated 0.7 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.