Electricity Live

Great Britain’s electricity on Tuesday 11 May 2021

On Tuesday 11 May, demand averaged 31.1 GW. Renewables supplied 26%.

31.1GW AVERAGEWind5.76 GW18%Hydro0.35 GW1%Biomass2.63 GW8%Solar2.29 GW7%Gas12.48 GW39%Coal0.13 GW0%Imports3.83 GW12%Nuclear4.30 GW14%31.1GW AVERAGE18%8%7%39%12%14%
Price
£66.63/MWh
Day average £66.63
Demand31.1GW
Generation 27.9Transfers 3.2
Fossil fuels39%
Renewables26%
Other34%
Carbon intensityModerate
174g/kWh
0Day average 174300
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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 11 May 2021, gas supplied 39% of Great Britain’s electricity and wind 18%. Demand peaked at 38.2 GW at 12:20. Carbon intensity averaged 174 g/kWh and the price £66.63/MWh. Wind generation peaked at 10.4 GW at 00:10. Solar generation peaked at 7.3 GW at 12:00. Carbon intensity was lowest at 00:30 (105 g/kWh) and highest at 21:00 (225 g/kWh). The wholesale price ranged from £48.93/MWh at 09:30 to £98.93/MWh at 18:30. Gas made 45% 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 2.297.2%Wind 5.7618.1%Gas 12.4839.3%Hydro 0.351.1%Biomass 2.638.3%Nuclear 4.3013.5%Coal 0.130.4%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 31.1avgGeneration 27.9avgTransfers 3.2avg
The day in figurespeaks, averages, totals
Peak demand38.2GW · 12:20
Low 22.2 · 04:20Avg 31.10–40 GW
Made in Great Britain90%of demand
Generation 27.9Transfers 3.2 GW
Net imports80GWh
In
88 Out
8
Zero-carbon share45%of generation
Nuclear 15%Hydro 1%Wind 21%Solar 8%

Transfers · Tue 11 May

Interconnectors and storage

On Tuesday 11 May 2021, Great Britain imported 88 GWh and exported 8 GWh through its interconnectors. The most came from France (62 GWh), and the most exports went to Ireland (8 GWh).

All interconnectors

Tue 11 May
Imported
88GWh
Exported
8GWh
Net in
80GWh
Average net flow
3.32GW 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

Average2.60GWImporting

In 62.3 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.13GWExporting

In 4.7 GWhOut 8.0 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

Average0.12GWPumping

Generated 4.0 GWhPumped 6.9 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.