Electricity Live

Great Britain’s electricity on Wednesday 14 May 2025

On Wednesday 14 May, demand averaged 28.2 GW. Renewables supplied 40%.

28.2GW AVERAGEWind7.29 GW24%Hydro0.16 GW1%Biomass2.20 GW7%Solar4.59 GW15%Gas5.03 GW17%Imports5.38 GW18%Nuclear5.13 GW17%28.2GW AVERAGE24%7%15%17%18%17%
Price
£76.68/MWh
Day average £76.68
Demand28.2GW
Generation 24.4Transfers 3.8
Fossil fuels17%
Renewables40%
Other43%
Carbon intensityLow
89g/kWh
0Day average 89300
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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 14 May 2025, wind supplied 24% of Great Britain’s electricity and nuclear 17%. Demand peaked at 33.6 GW at 12:55. Carbon intensity averaged 89 g/kWh and the price £76.68/MWh. Wind generation peaked at 10.4 GW at 22:50. Solar generation peaked at 13.5 GW at 12:30. Carbon intensity was lowest at 14:00 (39 g/kWh) and highest at 00:00 (131 g/kWh). The wholesale price ranged from £63.31/MWh at 04:30 to £94.55/MWh at 19:30. Wind made 30% 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 4.5915.4%Wind 7.2924.5%Gas 5.0316.9%Hydro 0.160.5%Biomass 2.207.4%Nuclear 5.1317.2%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 28.2avgGeneration 24.4avgTransfers 3.8avg
The day in figurespeaks, averages, totals
Peak demand33.6GW · 12:55
Low 20.9 · 04:15Avg 28.20–40 GW
Made in Great Britain87%of demand
Generation 24.4Transfers 3.8 GW
Net imports91GWh
In
129 Out
38
Zero-carbon share70%of generation
Nuclear 21%Hydro 1%Wind 30%Solar 19%

Transfers · Wed 14 May

Interconnectors and storage

On Wednesday 14 May 2025, Great Britain imported 129 GWh and exported 38 GWh through its interconnectors. The most came from France (90 GWh), and the most exports went to Ireland (31 GWh).

All interconnectors

Wed 14 May
Imported
129GWh
Exported
38GWh
Net in
91GWh
Average net flow
3.77GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.00GWIdle

In 7.5 GWhOut 7.5 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average3.76GWImporting

In 90.3 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average1.27GWExporting

In 0.0 GWhOut 30.5 GWh

Netherlands

BritNed

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Norway

North Sea Link

Average1.29GWImporting

In 30.9 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.00GWIdle

Generated 0.6 GWhPumped 0.7 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.