Electricity Live

Great Britain’s electricity on Wednesday 28 May 2025

On Wednesday 28 May, demand averaged 28.0 GW. Renewables supplied 36%.

28.0GW AVERAGEWind6.51 GW22%Hydro0.30 GW1%Biomass2.61 GW9%Solar3.53 GW12%Gas5.24 GW18%Coal0.00 GW0%Imports5.93 GW20%Nuclear4.88 GW17%28.0GW AVERAGE22%9%12%18%20%17%
Price
£87.42/MWh
Day average £87.42
Demand28.0GW
Generation 23.1Transfers 4.9
Fossil fuels18%
Renewables36%
Other46%
Carbon intensityLow
104g/kWh
0Day average 104300
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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 28 May 2025, wind supplied 22% of Great Britain’s electricity and gas 18%. Demand peaked at 34.2 GW at 14:55. Carbon intensity averaged 104 g/kWh and the price £87.42/MWh. Wind generation peaked at 8.1 GW at 00:05. Solar generation peaked at 9.6 GW at 14:30. Carbon intensity was lowest at 04:00 (70 g/kWh) and highest at 20:00 (169 g/kWh). The wholesale price ranged from £76.10/MWh at 10:30 to £111.56/MWh at 19:30. Wind made 28% 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 3.5312.2%Wind 6.5122.4%Gas 5.2418.1%Hydro 0.301.0%Biomass 2.619.0%Nuclear 4.8816.8%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 28.0avgGeneration 23.1avgTransfers 4.9avg
The day in figurespeaks, averages, totals
Peak demand34.2GW · 14:55
Low 21.0 · 05:05Avg 28.00–40 GW
Made in Great Britain82%of demand
Generation 23.1Transfers 4.9 GW
Net imports116GWh
In
140 Out
24
Zero-carbon share66%of generation
Nuclear 21%Hydro 1%Wind 28%Solar 15%

Transfers · Wed 28 May

Interconnectors and storage

On Wednesday 28 May 2025, Great Britain imported 140 GWh and exported 24 GWh through its interconnectors. The most came from France (56 GWh), and the most exports went to Ireland (21 GWh).

All interconnectors

Wed 28 May
Imported
140GWh
Exported
24GWh
Net in
116GWh
Average net flow
4.82GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.75GWImporting

In 18.8 GWhOut 0.8 GWh

Denmark

Viking Link

Average0.83GWImporting

In 20.1 GWhOut 0.2 GWh

France

IFA · IFA2 · ElecLink

Average2.35GWImporting

In 56.5 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.86GWExporting

In 0.0 GWhOut 20.7 GWh

Netherlands

BritNed

Average0.36GWImporting

In 11.5 GWhOut 2.8 GWh

Norway

North Sea Link

Average1.38GWImporting

In 33.1 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.08GWGenerating

Generated 2.3 GWhPumped 0.3 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.