Electricity Live

Great Britain’s electricity on Sunday 21 May 2023

On Sunday 21 May, demand averaged 24.2 GW. Renewables supplied 33%.

24.2GW AVERAGEWind4.86 GW19%Hydro0.15 GW1%Biomass0.23 GW1%Solar3.34 GW13%Gas5.52 GW22%Imports6.43 GW25%Nuclear4.71 GW19%24.2GW AVERAGE19%13%22%25%19%
Price
£68.07/MWh
Day average £68.07
Demand24.2GW
Generation 18.8Transfers 5.4
Fossil fuels22%
Renewables33%
Other45%
Carbon intensityLow
103g/kWh
0Day average 103300
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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 21 May 2023, gas supplied 22% of Great Britain’s electricity and wind 19%. Demand peaked at 29.3 GW at 17:25. Carbon intensity averaged 103 g/kWh and the price £68.07/MWh. Wind generation peaked at 6.1 GW at 18:25. Solar generation peaked at 9.4 GW at 12:30. Carbon intensity was lowest at 10:00 (76 g/kWh) and highest at 20:30 (138 g/kWh). The wholesale price ranged from £42.85/MWh at 08:30 to £104.18/MWh at 20:00. Gas made 29% of the electricity generated in Great Britain, compared with 36% across 2023.

Charts

Generation, demand, price and carbon

Generation by sourceGW · daily average below
Solar 3.3413.2%Wind 4.8619.2%Gas 5.5221.9%Hydro 0.150.6%Biomass 0.230.9%Nuclear 4.7118.7%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 24.2avgGeneration 18.8avgTransfers 5.4avg
The day in figurespeaks, averages, totals
Peak demand29.3GW · 17:25
Low 17.6 · 05:15Avg 24.20–30 GW
Made in Great Britain78%of demand
Generation 18.8Transfers 5.4 GW
Net imports130GWh
In
150 Out
20
Zero-carbon share69%of generation
Nuclear 25%Hydro 1%Wind 26%Solar 18%

Transfers · Sun 21 May

Interconnectors and storage

On Sunday 21 May 2023, Great Britain imported 150 GWh and exported 20 GWh through its interconnectors. The most came from France (84 GWh), and the most exports went to Ireland (20 GWh).

All interconnectors

Sun 21 May
Imported
150GWh
Exported
20GWh
Net in
130GWh
Average net flow
5.41GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.79GWImporting

In 18.9 GWhOut 0.0 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average3.49GWImporting

In 83.7 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.82GWExporting

In 0.0 GWhOut 19.7 GWh

Netherlands

BritNed

Average0.65GWImporting

In 16.5 GWhOut 0.8 GWh

Norway

North Sea Link

Average1.30GWImporting

In 31.1 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.01GWGenerating

Generated 4.1 GWhPumped 3.8 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.