Electricity Live

Great Britain’s electricity on Wednesday 27 August 2025

On Wednesday 27 August, demand averaged 27.8 GW. Renewables supplied 42%.

27.8GW AVERAGEWind9.61 GW33%Hydro0.23 GW1%Biomass2.92 GW10%Solar2.51 GW9%Gas6.91 GW23%Imports4.21 GW14%Nuclear3.05 GW10%27.8GW AVERAGE33%10%9%23%14%10%
Price
£81.19/MWh
Day average £81.19
Demand27.8GW
Generation 25.2Transfers 2.6
Fossil fuels23%
Renewables42%
Other35%
Carbon intensityModerate
124g/kWh
0Day average 124300
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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 27 August 2025, wind supplied 33% of Great Britain’s electricity and gas 23%. Demand peaked at 34.3 GW at 14:15. Carbon intensity averaged 124 g/kWh and the price £81.19/MWh. Wind generation peaked at 14.3 GW at 14:50. Solar generation peaked at 7.3 GW at 14:00. Carbon intensity was lowest at 14:30 (57 g/kWh) and highest at 19:30 (166 g/kWh). The wholesale price ranged from £62.49/MWh at 15:30 to £112.23/MWh at 07:30. Wind made 38% 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 2.518.5%Wind 9.6132.6%Gas 6.9123.5%Hydro 0.230.8%Biomass 2.929.9%Nuclear 3.0510.3%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 27.8avgGeneration 25.2avgTransfers 2.6avg
The day in figurespeaks, averages, totals
Peak demand34.3GW · 14:15
Low 20.4 · 04:40Avg 27.80–40 GW
Made in Great Britain91%of demand
Generation 25.2Transfers 2.6 GW
Net imports63GWh
In
101 Out
38
Zero-carbon share61%of generation
Nuclear 12%Hydro 1%Wind 38%Solar 10%

Transfers · Wed 27 Aug

Interconnectors and storage

On Wednesday 27 August 2025, Great Britain imported 101 GWh and exported 38 GWh through its interconnectors. The most came from France (81 GWh), and the most exports went to Ireland (12 GWh).

All interconnectors

Wed 27 Aug
Imported
101GWh
Exported
38GWh
Net in
63GWh
Average net flow
2.61GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.11GWExporting

In 4.8 GWhOut 7.6 GWh

Denmark

Viking Link

Average0.18GWExporting

In 6.8 GWhOut 11.1 GWh

France

IFA · IFA2 · ElecLink

Average3.36GWImporting

In 80.6 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.46GWExporting

In 0.5 GWhOut 11.7 GWh

Netherlands

BritNed

Average0.01GWImporting

In 8.0 GWhOut 7.8 GWh

Norway

North Sea Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.06GWPumping

Generated 0.3 GWhPumped 1.7 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.