Electricity Live

Great Britain’s electricity on Wednesday 31 May 2023

On Wednesday 31 May, demand averaged 27.2 GW. Renewables supplied 27%.

27.2GW AVERAGEWind5.65 GW20%Hydro0.12 GW0%Biomass0.75 GW3%Solar2.04 GW7%Gas9.38 GW33%Imports5.29 GW19%Nuclear5.25 GW18%27.2GW AVERAGE20%7%33%19%18%
Price
£71.97/MWh
Day average £71.97
Demand27.2GW
Generation 23.2Transfers 4.0
Fossil fuels33%
Renewables27%
Other40%
Carbon intensityModerate
142g/kWh
0Day average 142300
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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 May 2023, gas supplied 33% of Great Britain’s electricity and wind 20%. Demand peaked at 32.8 GW at 12:30. Carbon intensity averaged 142 g/kWh and the price £71.97/MWh. Wind generation peaked at 7.3 GW at 19:35. Solar generation peaked at 6.7 GW at 14:00. Carbon intensity was lowest at 13:00 (116 g/kWh) and highest at 07:00 (174 g/kWh). The wholesale price ranged from £49.91/MWh at 02:30 to £94.46/MWh at 20:00. Gas made 40% 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 2.047.2%Wind 5.6519.8%Gas 9.3833.0%Hydro 0.120.4%Biomass 0.752.6%Nuclear 5.2518.4%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 27.2avgGeneration 23.2avgTransfers 4.0avg
The day in figurespeaks, averages, totals
Peak demand32.8GW · 12:30
Low 19.4 · 04:45Avg 27.20–40 GW
Made in Great Britain85%of demand
Generation 23.2Transfers 4.0 GW
Net imports97GWh
In
126 Out
29
Zero-carbon share56%of generation
Nuclear 23%Hydro 1%Wind 24%Solar 9%

Transfers · Wed 31 May

Interconnectors and storage

On Wednesday 31 May 2023, Great Britain imported 126 GWh and exported 29 GWh through its interconnectors. The most came from France (78 GWh), and the most exports went to Ireland (22 GWh).

All interconnectors

Wed 31 May
Imported
126GWh
Exported
29GWh
Net in
97GWh
Average net flow
4.03GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.38GWImporting

In 10.4 GWhOut 1.2 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average3.24GWImporting

In 77.7 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.94GWExporting

In 0.0 GWhOut 22.4 GWh

Netherlands

BritNed

Average0.23GWImporting

In 11.3 GWhOut 5.7 GWh

Norway

North Sea Link

Average1.11GWImporting

In 26.8 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.03GWPumping

Generated 0.8 GWhPumped 1.6 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.