Electricity Live

Great Britain’s electricity on Wednesday 4 September 2024

On Wednesday 4 September, demand averaged 27.9 GW. Renewables supplied 15%.

27.9GW AVERAGEWind2.16 GW7%Hydro0.47 GW2%Biomass3.10 GW11%Solar1.90 GW6%Gas12.66 GW43%Coal0.42 GW1%Imports3.88 GW13%Nuclear4.81 GW16%27.9GW AVERAGE7%11%43%13%16%
Price
£84.65/MWh
Day average £84.65
Demand27.9GW
Generation 25.5Transfers 2.4
Fossil fuels43%
Renewables15%
Other40%
Carbon intensityHigh
198g/kWh
0Day average 198300
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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 4 September 2024, gas supplied 43% of Great Britain’s electricity and nuclear 16%. Demand peaked at 33.6 GW at 13:25. Carbon intensity averaged 198 g/kWh and the price £84.65/MWh. Wind generation peaked at 4.6 GW at 23:10. Solar generation peaked at 6.2 GW at 10:30. Carbon intensity was lowest at 23:30 (95 g/kWh) and highest at 20:00 (236 g/kWh). The wholesale price ranged from £71.33/MWh at 04:30 to £121.97/MWh at 18:00. Gas made 50% 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 1.906.5%Wind 2.167.3%Gas 12.6643.1%Hydro 0.471.6%Biomass 3.1010.5%Nuclear 4.8116.4%Coal 0.421.4%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 27.9avgGeneration 25.5avgTransfers 2.4avg
The day in figurespeaks, averages, totals
Peak demand33.6GW · 13:25
Low 20.1 · 05:00Avg 27.90–40 GW
Made in Great Britain92%of demand
Generation 25.5Transfers 2.4 GW
Net imports55GWh
In
90 Out
35
Zero-carbon share37%of generation
Nuclear 19%Hydro 2%Wind 8%Solar 7%

Transfers · Wed 4 Sept

Interconnectors and storage

On Wednesday 4 September 2024, Great Britain imported 90 GWh and exported 35 GWh through its interconnectors. The most came from France (49 GWh), and the most exports went to Netherlands (13 GWh).

All interconnectors

Wed 4 Sept
Imported
90GWh
Exported
35GWh
Net in
55GWh
Average net flow
2.29GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.15GWExporting

In 2.3 GWhOut 5.9 GWh

Denmark

Viking Link

Average0.36GWExporting

In 2.6 GWhOut 11.3 GWh

France

IFA · IFA2 · ElecLink

Average2.05GWImporting

In 49.3 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.19GWExporting

In 0.5 GWhOut 5.1 GWh

Netherlands

BritNed

Average0.46GWExporting

In 1.7 GWhOut 12.6 GWh

Norway

North Sea Link

Average1.40GWImporting

In 33.5 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.06GWGenerating

Generated 3.2 GWhPumped 1.7 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.