Electricity Live

Great Britain’s electricity on Wednesday 31 March 2021

On Wednesday 31 March, demand averaged 30.2 GW. Renewables supplied 22%.

30.2GW AVERAGEWind4.17 GW13%Hydro0.74 GW2%Biomass2.36 GW8%Solar1.78 GW6%Gas13.37 GW43%Imports3.70 GW12%Nuclear4.88 GW16%30.2GW AVERAGE13%8%43%12%16%
Price
£52.88/MWh
Day average £52.88
Demand30.2GW
Generation 27.3Transfers 2.9
Fossil fuels43%
Renewables22%
Other35%
Carbon intensityModerate
197g/kWh
0Day average 197300
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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 Wednesday 31 March 2021, gas supplied 43% of Great Britain’s electricity and nuclear 16%. Demand peaked at 35.3 GW at 10:30. Carbon intensity averaged 197 g/kWh and the price £52.88/MWh. Wind generation peaked at 7.2 GW at 23:35. Solar generation peaked at 6.1 GW at 12:00. Carbon intensity was lowest at 23:30 (131 g/kWh) and highest at 06:00 (230 g/kWh). The wholesale price ranged from £25.22/MWh at 03:00 to £73.45/MWh at 19:30. Gas made 49% 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 1.785.7%Wind 4.1713.5%Gas 13.3743.1%Hydro 0.742.4%Biomass 2.367.6%Nuclear 4.8815.7%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 30.2avgGeneration 27.3avgTransfers 2.9avg
The day in figurespeaks, averages, totals
Peak demand35.3GW · 10:30
Low 22.4 · 04:25Avg 30.20–40 GW
Made in Great Britain90%of demand
Generation 27.3Transfers 2.9 GW
Net imports67GWh
In
85 Out
18
Zero-carbon share42%of generation
Nuclear 18%Hydro 3%Wind 15%Solar 7%

Transfers · Wed 31 Mar

Interconnectors and storage

On Wednesday 31 March 2021, Great Britain imported 85 GWh and exported 18 GWh through its interconnectors. The most came from France (63 GWh), and the most exports went to Ireland (18 GWh).

All interconnectors

Wed 31 Mar
Imported
85GWh
Exported
18GWh
Net in
67GWh
Average net flow
2.81GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.91GWImporting

In 21.9 GWhOut 0.0 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average2.64GWImporting

In 63.4 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.75GWExporting

In 0.0 GWhOut 18.0 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

Average0.11GWGenerating

Generated 3.3 GWhPumped 0.7 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.