Electricity Live

Great Britain’s electricity on Sunday 4 April 2021

On Sunday 4 April, demand averaged 28.0 GW. Renewables supplied 44%.

28.0GW AVERAGEWind9.37 GW33%Hydro0.57 GW2%Biomass1.41 GW5%Solar2.74 GW10%Gas6.69 GW23%Imports2.89 GW10%Nuclear4.90 GW17%28.0GW AVERAGE33%10%23%10%17%
Price
£47.78/MWh
Day average £47.78
Demand28.0GW
Generation 25.7Transfers 2.4
Fossil fuels23%
Renewables44%
Other32%
Carbon intensityLow
115g/kWh
0Day average 115300
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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 4 April 2021, wind supplied 33% of Great Britain’s electricity and gas 23%. Demand peaked at 33.5 GW at 12:30. Carbon intensity averaged 115 g/kWh and the price £47.78/MWh. Wind generation peaked at 16.1 GW at 23:00. Solar generation peaked at 9.3 GW at 13:00. Carbon intensity was lowest at 14:30 (49 g/kWh) and highest at 01:30 (192 g/kWh). The wholesale price ranged from −£12.29/MWh at 23:30 to £71.88/MWh at 03:00. The price was below zero for 1.5 hours. Wind made 36% of the electricity generated in Great Britain, compared with 25% across 2021.

Charts

Generation, demand, price and carbon

Generation by sourceGW · daily average below
Solar 2.749.6%Wind 9.3732.8%Gas 6.6923.4%Hydro 0.572.0%Biomass 1.414.9%Nuclear 4.9017.1%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 28.0avgGeneration 25.7avgTransfers 2.4avg
The day in figurespeaks, averages, totals
Peak demand33.5GW · 12:30
Low 22.5 · 04:35Avg 28.00–40 GW
Made in Great Britain92%of demand
Generation 25.7Transfers 2.4 GW
Net imports56GWh
In
64 Out
8
Zero-carbon share68%of generation
Nuclear 19%Hydro 2%Wind 36%Solar 11%

Transfers · Sun 4 Apr

Interconnectors and storage

On Sunday 4 April 2021, Great Britain imported 64 GWh and exported 8 GWh through its interconnectors. The most came from France (45 GWh), and the most exports went to Ireland (6 GWh).

All interconnectors

Sun 4 Apr
Imported
64GWh
Exported
8GWh
Net in
56GWh
Average net flow
2.34GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.71GWImporting

In 17.0 GWhOut 0.0 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average1.80GWImporting

In 45.3 GWhOut 2.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.17GWExporting

In 2.1 GWhOut 6.2 GWh

Netherlands

BritNed

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Norway

North Sea Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.01GWGenerating

Generated 5.0 GWhPumped 4.6 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.