Electricity Live

Great Britain’s electricity on Saturday 12 April 2025

On Saturday 12 April, demand averaged 26.7 GW. Renewables supplied 35%.

26.7GW AVERAGEWind6.20 GW22%Hydro0.16 GW1%Biomass2.41 GW9%Solar3.21 GW12%Gas4.77 GW17%Imports6.44 GW23%Nuclear4.48 GW16%26.7GW AVERAGE22%9%12%17%23%16%
Price
£68.38/MWh
Day average £68.38
Demand26.7GW
Generation 21.2Transfers 5.4
Fossil fuels17%
Renewables35%
Other48%
Carbon intensityModerate
107g/kWh
0Day average 107300
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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 Saturday 12 April 2025, wind supplied 22% of Great Britain’s electricity and gas 17%. Demand peaked at 30.9 GW at 11:30. Carbon intensity averaged 107 g/kWh and the price £68.38/MWh. Wind generation peaked at 11.1 GW at 16:30. Solar generation peaked at 10.9 GW at 12:30. Carbon intensity was lowest at 14:30 (46 g/kWh) and highest at 00:00 (163 g/kWh). The wholesale price ranged from −£3.37/MWh at 14:00 to £103.86/MWh at 06:30. The price was below zero for 1.5 hours. Wind made 29% 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 3.2111.6%Wind 6.2022.4%Gas 4.7717.2%Hydro 0.160.6%Biomass 2.418.7%Nuclear 4.4816.2%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 26.7avgGeneration 21.2avgTransfers 5.4avg
The day in figurespeaks, averages, totals
Peak demand30.9GW · 11:30
Low 20.4 · 04:00Avg 26.70–40 GW
Made in Great Britain80%of demand
Generation 21.2Transfers 5.4 GW
Net imports131GWh
In
152 Out
21
Zero-carbon share66%of generation
Nuclear 21%Hydro 1%Wind 29%Solar 15%

Transfers · Sat 12 Apr

Interconnectors and storage

On Saturday 12 April 2025, Great Britain imported 152 GWh and exported 21 GWh through its interconnectors. The most came from France (70 GWh), and the most exports went to Ireland (18 GWh).

All interconnectors

Sat 12 Apr
Imported
152GWh
Exported
21GWh
Net in
131GWh
Average net flow
5.46GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.81GWImporting

In 19.4 GWhOut 0.0 GWh

Denmark

Viking Link

Average0.43GWImporting

In 12.4 GWhOut 2.1 GWh

France

IFA · IFA2 · ElecLink

Average2.94GWImporting

In 70.5 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.74GWExporting

In 0.0 GWhOut 17.8 GWh

Netherlands

BritNed

Average0.63GWImporting

In 15.9 GWhOut 0.8 GWh

Norway

North Sea Link

Average1.40GWImporting

In 33.5 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.04GWPumping

Generated 2.7 GWhPumped 3.6 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.