Electricity Live

Great Britain’s electricity on Sunday 27 April 2025

On Sunday 27 April, demand averaged 26.0 GW. Renewables supplied 46%.

26.0GW AVERAGEWind8.48 GW31%Hydro0.17 GW1%Biomass1.47 GW5%Solar3.97 GW15%Gas4.24 GW16%Imports5.22 GW19%Nuclear3.74 GW14%26.0GW AVERAGE31%15%16%19%14%
Price
£39.60/MWh
Day average £39.60
Demand26.0GW
Generation 22.1Transfers 3.9
Fossil fuels16%
Renewables46%
Other38%
Carbon intensityLow
87g/kWh
0Day average 87300
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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 Sunday 27 April 2025, wind supplied 31% of Great Britain’s electricity and gas 16%. Demand peaked at 31.8 GW at 12:05. Carbon intensity averaged 87 g/kWh and the price £39.60/MWh. Wind generation peaked at 11.1 GW at 23:15. Solar generation peaked at 12.3 GW at 12:00. Carbon intensity was lowest at 14:30 (52 g/kWh) and highest at 20:00 (131 g/kWh). The wholesale price ranged from −£35.48/MWh at 14:30 to £87.09/MWh at 19:30. The price was below zero for 6.5 hours. 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 3.9714.5%Wind 8.4831.1%Gas 4.2415.5%Hydro 0.170.6%Biomass 1.475.4%Nuclear 3.7413.7%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 26.0avgGeneration 22.1avgTransfers 3.9avg
The day in figurespeaks, averages, totals
Peak demand31.8GW · 12:05
Low 19.9 · 04:15Avg 26.00–40 GW
Made in Great Britain85%of demand
Generation 22.1Transfers 3.9 GW
Net imports100GWh
In
125 Out
25
Zero-carbon share74%of generation
Nuclear 17%Hydro 1%Wind 38%Solar 18%

Transfers · Sun 27 Apr

Interconnectors and storage

On Sunday 27 April 2025, Great Britain imported 125 GWh and exported 25 GWh through its interconnectors. The most came from France (74 GWh), and the most exports went to Ireland (9 GWh).

All interconnectors

Sun 27 Apr
Imported
125GWh
Exported
25GWh
Net in
100GWh
Average net flow
4.16GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.14GWImporting

In 8.6 GWhOut 5.2 GWh

Denmark

Viking Link

Average0.07GWImporting

In 5.8 GWhOut 4.1 GWh

France

IFA · IFA2 · ElecLink

Average3.07GWImporting

In 73.8 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.28GWExporting

In 1.9 GWhOut 8.6 GWh

Netherlands

BritNed

Average0.03GWImporting

In 8.1 GWhOut 7.5 GWh

Norway

North Sea Link

Average1.12GWImporting

In 26.9 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.22GWPumping

Generated 0.1 GWhPumped 5.5 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.