Electricity Live

Great Britain’s electricity on Tuesday 30 March 2021

On Tuesday 30 March, demand averaged 31.4 GW. Renewables supplied 32%.

31.4GW AVERAGEWind7.13 GW22%Hydro0.74 GW2%Biomass3.06 GW10%Solar2.52 GW8%Gas10.41 GW32%Imports3.42 GW11%Nuclear4.86 GW15%31.4GW AVERAGE22%10%8%32%11%15%
Price
£48.17/MWh
Day average £48.17
Demand31.4GW
Generation 28.7Transfers 2.7
Fossil fuels32%
Renewables32%
Other35%
Carbon intensityModerate
156g/kWh
0Day average 156300
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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 Tuesday 30 March 2021, gas supplied 32% of Great Britain’s electricity and wind 22%. Demand peaked at 37.9 GW at 09:30. Carbon intensity averaged 156 g/kWh and the price £48.17/MWh. Wind generation peaked at 11.4 GW at 00:00. Solar generation peaked at 8.5 GW at 12:30. Carbon intensity was lowest at 02:30 (96 g/kWh) and highest at 20:00 (230 g/kWh). The wholesale price ranged from £23.01/MWh at 03:30 to £71.81/MWh at 20:00. Gas made 36% of the electricity generated in Great Britain, compared with 42% across 2021.

Charts

Generation, demand, price and carbon

Generation by sourceGW · daily average below
Solar 2.527.8%Wind 7.1322.2%Gas 10.4132.4%Hydro 0.742.3%Biomass 3.069.5%Nuclear 4.8615.1%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 31.4avgGeneration 28.7avgTransfers 2.7avg
The day in figurespeaks, averages, totals
Peak demand37.9GW · 09:30
Low 24.0 · 23:55Avg 31.40–40 GW
Made in Great Britain91%of demand
Generation 28.7Transfers 2.7 GW
Net imports64GWh
In
78 Out
14
Zero-carbon share53%of generation
Nuclear 17%Hydro 3%Wind 25%Solar 9%

Transfers · Tue 30 Mar

Interconnectors and storage

On Tuesday 30 March 2021, Great Britain imported 78 GWh and exported 14 GWh through its interconnectors. The most came from France (55 GWh), and the most exports went to Ireland (12 GWh).

All interconnectors

Tue 30 Mar
Imported
78GWh
Exported
14GWh
Net in
64GWh
Average net flow
2.65GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.86GWImporting

In 20.6 GWhOut 0.0 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average2.23GWImporting

In 55.2 GWhOut 1.8 GWh

Ireland

Moyle · East–West · Greenlink

Average0.44GWExporting

In 1.9 GWhOut 12.4 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

Average0.04GWGenerating

Generated 4.4 GWhPumped 3.5 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.