Electricity Live

Great Britain’s electricity on Wednesday 13 September 2023

On Wednesday 13 September, demand averaged 27.9 GW. Renewables supplied 29%.

27.9GW AVERAGEWind6.27 GW21%Hydro0.13 GW0%Biomass1.54 GW5%Solar2.18 GW7%Gas11.92 GW40%Coal0.49 GW2%Imports2.18 GW7%Nuclear5.19 GW17%27.9GW AVERAGE21%7%40%7%17%
Price
£85.07/MWh
Day average £85.07
Demand27.9GW
Generation 27.7Transfers 0.2
Fossil fuels40%
Renewables29%
Other30%
Carbon intensityModerate
182g/kWh
0Day average 182300
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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 13 September 2023, gas supplied 40% of Great Britain’s electricity and wind 21%. Demand peaked at 33.6 GW at 16:55. Carbon intensity averaged 182 g/kWh and the price £85.07/MWh. Wind generation peaked at 9.0 GW at 23:10. Solar generation peaked at 7.1 GW at 13:00. Carbon intensity was lowest at 00:00 (132 g/kWh) and highest at 19:30 (229 g/kWh). The wholesale price ranged from £63.81/MWh at 11:00 to £109.13/MWh at 07:30. Gas made 43% 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 2.187.3%Wind 6.2721.0%Gas 11.9239.9%Hydro 0.130.4%Biomass 1.545.1%Nuclear 5.1917.3%Coal 0.491.7%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 27.9avgGeneration 27.7avgTransfers 0.2avg
The day in figurespeaks, averages, totals
Peak demand33.6GW · 16:55
Low 19.6 · 04:15Avg 27.90–40 GW
Made in Great Britain99%of demand
Generation 27.7Transfers 0.2 GW
Net imports5GWh
In
50 Out
45
Zero-carbon share50%of generation
Nuclear 19%Hydro 0%Wind 23%Solar 8%

Transfers · Wed 13 Sept

Interconnectors and storage

On Wednesday 13 September 2023, Great Britain imported 50 GWh and exported 45 GWh through its interconnectors. The most came from Norway (34 GWh), and the most exports went to Netherlands (13 GWh).

All interconnectors

Wed 13 Sept
Imported
50GWh
Exported
45GWh
Net in
5GWh
Average net flow
0.20GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.41GWExporting

In 1.9 GWhOut 11.7 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average0.07GWExporting

In 7.4 GWhOut 9.2 GWh

Ireland

Moyle · East–West · Greenlink

Average0.35GWExporting

In 3.0 GWhOut 11.3 GWh

Netherlands

BritNed

Average0.37GWExporting

In 4.1 GWhOut 13.1 GWh

Norway

North Sea Link

Average1.40GWImporting

In 33.6 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.01GWGenerating

Generated 2.3 GWhPumped 2.1 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.