Electricity Live

Great Britain’s electricity on Friday 4 April 2025

On Friday 4 April, demand averaged 30.1 GW. Renewables supplied 51%.

30.1GW AVERAGEWind12.53 GW40%Hydro0.20 GW1%Biomass2.18 GW7%Solar3.37 GW11%Gas3.85 GW12%Imports5.22 GW17%Nuclear4.26 GW13%30.1GW AVERAGE40%11%12%17%13%
Price
£81.72/MWh
Day average £81.72
Demand30.1GW
Generation 26.4Transfers 3.7
Fossil fuels12%
Renewables51%
Other37%
Carbon intensityLow
76g/kWh
0Day average 76300
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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 Friday 4 April 2025, wind supplied 40% of Great Britain’s electricity and nuclear 13%. Demand peaked at 36.0 GW at 12:00. Carbon intensity averaged 76 g/kWh and the price £81.72/MWh. Wind generation peaked at 16.9 GW at 19:55. Solar generation peaked at 11.5 GW at 13:30. Carbon intensity was lowest at 14:30 (35 g/kWh) and highest at 06:00 (129 g/kWh). The wholesale price ranged from £15.44/MWh at 14:30 to £119.83/MWh at 06:30. Wind made 47% 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 3.3710.7%Wind 12.5339.6%Gas 3.8512.2%Hydro 0.200.6%Biomass 2.186.9%Nuclear 4.2613.5%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 30.1avgGeneration 26.4avgTransfers 3.7avg
The day in figurespeaks, averages, totals
Peak demand36.0GW · 12:00
Low 22.5 · 04:05Avg 30.10–40 GW
Made in Great Britain88%of demand
Generation 26.4Transfers 3.7 GW
Net imports92GWh
In
124 Out
31
Zero-carbon share77%of generation
Nuclear 16%Hydro 1%Wind 47%Solar 13%

Transfers · Fri 4 Apr

Interconnectors and storage

On Friday 4 April 2025, Great Britain imported 124 GWh and exported 31 GWh through its interconnectors. The most came from France (71 GWh), and the most exports went to Ireland (18 GWh).

All interconnectors

Fri 4 Apr
Imported
124GWh
Exported
31GWh
Net in
92GWh
Average net flow
3.84GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.33GWImporting

In 10.3 GWhOut 2.3 GWh

Denmark

Viking Link

Average0.11GWImporting

In 8.6 GWhOut 6.1 GWh

France

IFA · IFA2 · ElecLink

Average2.95GWImporting

In 70.9 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.55GWExporting

In 4.5 GWhOut 17.9 GWh

Netherlands

BritNed

Average0.18GWImporting

In 9.2 GWhOut 4.8 GWh

Norway

North Sea Link

Average0.83GWImporting

In 20.2 GWhOut 0.3 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.15GWPumping

Generated 1.7 GWhPumped 5.2 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.