Electricity Live

Great Britain’s electricity on Monday 31 May 2021

On Monday 31 May, demand averaged 26.7 GW. Renewables supplied 31%.

26.7GW AVERAGEWind4.74 GW18%Hydro0.24 GW1%Biomass1.72 GW6%Solar3.32 GW12%Gas8.51 GW31%Imports3.09 GW11%Nuclear5.45 GW20%26.7GW AVERAGE18%12%31%11%20%
Price
£72.12/MWh
Day average £72.12
Demand26.7GW
Generation 24.0Transfers 2.8
Fossil fuels31%
Renewables31%
Other38%
Carbon intensityModerate
141g/kWh
0Day average 141300
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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 Monday 31 May 2021, gas supplied 31% of Great Britain’s electricity and nuclear 20%. Demand peaked at 32.0 GW at 12:00. Carbon intensity averaged 141 g/kWh and the price £72.12/MWh. Wind generation peaked at 7.1 GW at 18:55. Solar generation peaked at 9.9 GW at 12:30. Carbon intensity was lowest at 12:30 (96 g/kWh) and highest at 03:30 (171 g/kWh). The wholesale price ranged from £46.11/MWh at 15:00 to £97.27/MWh at 08:30. Gas made 35% 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 3.3212.3%Wind 4.7417.5%Gas 8.5131.4%Hydro 0.240.9%Biomass 1.726.4%Nuclear 5.4520.1%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 26.7avgGeneration 24.0avgTransfers 2.8avg
The day in figurespeaks, averages, totals
Peak demand32.0GW · 12:00
Low 19.7 · 04:55Avg 26.70–40 GW
Made in Great Britain90%of demand
Generation 24.0Transfers 2.8 GW
Net imports68GWh
In
71 Out
3
Zero-carbon share57%of generation
Nuclear 23%Hydro 1%Wind 20%Solar 14%

Transfers · Mon 31 May

Interconnectors and storage

On Monday 31 May 2021, Great Britain imported 71 GWh and exported 3 GWh through its interconnectors. The most came from France (51 GWh), and the most exports went to Ireland (3 GWh).

All interconnectors

Mon 31 May
Imported
71GWh
Exported
3GWh
Net in
68GWh
Average net flow
2.85GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.77GWImporting

In 18.4 GWhOut 0.0 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average2.13GWImporting

In 51.2 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.06GWExporting

In 1.7 GWhOut 3.1 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

Average0.09GWPumping

Generated 2.7 GWhPumped 5.0 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.