Electricity Live

Great Britain’s electricity on Wednesday 18 September 2024

On Wednesday 18 September, demand averaged 28.2 GW. Renewables supplied 29%.

28.2GW AVERAGEWind5.74 GW20%Hydro0.41 GW1%Biomass2.97 GW10%Solar2.52 GW9%Gas7.20 GW24%Coal0.29 GW1%Imports5.43 GW18%Nuclear4.87 GW17%28.2GW AVERAGE20%10%9%24%18%17%
Price
£82.78/MWh
Day average £82.78
Demand28.2GW
Generation 24.0Transfers 4.2
Fossil fuels24%
Renewables29%
Other45%
Carbon intensityModerate
129g/kWh
0Day average 129300
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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 18 September 2024, gas supplied 24% of Great Britain’s electricity and wind 20%. Demand peaked at 34.6 GW at 12:30. Carbon intensity averaged 129 g/kWh and the price £82.78/MWh. Wind generation peaked at 6.8 GW at 21:00. Solar generation peaked at 9.8 GW at 13:30. Carbon intensity was lowest at 03:30 (87 g/kWh) and highest at 18:30 (178 g/kWh). The wholesale price ranged from £65.12/MWh at 14:30 to £111.74/MWh at 07:30. Gas made 30% of the electricity generated in Great Britain, compared with 31% across 2024.

Charts

Generation, demand, price and carbon

Generation by sourceGW · daily average below
Solar 2.528.5%Wind 5.7419.5%Gas 7.2024.5%Hydro 0.411.4%Biomass 2.9710.1%Nuclear 4.8716.6%Coal 0.291.0%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 28.2avgGeneration 24.0avgTransfers 4.2avg
The day in figurespeaks, averages, totals
Peak demand34.6GW · 12:30
Low 19.9 · 04:15Avg 28.20–40 GW
Made in Great Britain85%of demand
Generation 24.0Transfers 4.2 GW
Net imports100GWh
In
127 Out
27
Zero-carbon share56%of generation
Nuclear 20%Hydro 2%Wind 24%Solar 10%

Transfers · Wed 18 Sept

Interconnectors and storage

On Wednesday 18 September 2024, Great Britain imported 127 GWh and exported 27 GWh through its interconnectors. The most came from France (46 GWh), and the most exports went to Ireland (21 GWh).

All interconnectors

Wed 18 Sept
Imported
127GWh
Exported
27GWh
Net in
100GWh
Average net flow
4.17GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.85GWImporting

In 20.4 GWhOut 0.0 GWh

Denmark

Viking Link

Average0.29GWImporting

In 11.3 GWhOut 4.3 GWh

France

IFA · IFA2 · ElecLink

Average1.91GWImporting

In 45.8 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.86GWExporting

In 0.0 GWhOut 20.7 GWh

Netherlands

BritNed

Average0.59GWImporting

In 16.2 GWhOut 2.1 GWh

Norway

North Sea Link

Average1.40GWImporting

In 33.5 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.01GWGenerating

Generated 3.0 GWhPumped 2.7 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.