Electricity Live

Great Britain’s electricity on Monday 4 September 2023

On Monday 4 September, demand averaged 28.2 GW. Renewables supplied 26%.

28.2GW AVERAGEWind4.33 GW15%Hydro0.23 GW1%Biomass1.39 GW5%Solar3.07 GW10%Gas10.59 GW36%Coal0.38 GW1%Imports4.46 GW15%Nuclear5.24 GW18%28.2GW AVERAGE15%10%36%15%18%
Price
£81.36/MWh
Day average £81.36
Demand28.2GW
Generation 25.2Transfers 2.9
Fossil fuels36%
Renewables26%
Other37%
Carbon intensityModerate
170g/kWh
0Day average 170300
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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 4 September 2023, gas supplied 36% of Great Britain’s electricity and nuclear 18%. Demand peaked at 34.5 GW at 12:05. Carbon intensity averaged 170 g/kWh and the price £81.36/MWh. Wind generation peaked at 5.1 GW at 15:25. Solar generation peaked at 10.0 GW at 12:30. Carbon intensity was lowest at 12:30 (125 g/kWh) and highest at 20:00 (232 g/kWh). The wholesale price ranged from £66.98/MWh at 13:30 to £115.52/MWh at 19:30. Gas made 42% 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 3.0710.3%Wind 4.3314.6%Gas 10.5935.7%Hydro 0.230.8%Biomass 1.394.7%Nuclear 5.2417.6%Coal 0.381.3%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 28.2avgGeneration 25.2avgTransfers 2.9avg
The day in figurespeaks, averages, totals
Peak demand34.5GW · 12:05
Low 18.9 · 04:00Avg 28.20–40 GW
Made in Great Britain90%of demand
Generation 25.2Transfers 2.9 GW
Net imports70GWh
In
106 Out
36
Zero-carbon share51%of generation
Nuclear 21%Hydro 1%Wind 17%Solar 12%

Transfers · Mon 4 Sept

Interconnectors and storage

On Monday 4 September 2023, Great Britain imported 106 GWh and exported 36 GWh through its interconnectors. The most came from France (56 GWh), and the most exports went to Ireland (17 GWh).

All interconnectors

Mon 4 Sept
Imported
106GWh
Exported
36GWh
Net in
70GWh
Average net flow
2.90GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.20GWImporting

In 9.3 GWhOut 4.4 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average2.33GWImporting

In 55.9 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.69GWExporting

In 0.0 GWhOut 16.6 GWh

Netherlands

BritNed

Average0.34GWExporting

In 6.8 GWhOut 15.0 GWh

Norway

North Sea Link

Average1.40GWImporting

In 33.6 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.04GWGenerating

Generated 1.5 GWhPumped 0.7 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.