Electricity Live

Great Britain’s electricity on Saturday 21 September 2024

On Saturday 21 September, demand averaged 25.4 GW. Renewables supplied 29%.

25.4GW AVERAGEWind5.78 GW22%Hydro0.33 GW1%Biomass2.33 GW9%Solar1.63 GW6%Gas6.59 GW25%Imports5.64 GW21%Nuclear4.50 GW17%25.4GW AVERAGE22%9%25%21%17%
Price
£89.17/MWh
Day average £89.17
Demand25.4GW
Generation 21.2Transfers 4.3
Fossil fuels25%
Renewables29%
Other47%
Carbon intensityModerate
122g/kWh
0Day average 122300
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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 Saturday 21 September 2024, gas supplied 25% of Great Britain’s electricity and wind 22%. Demand peaked at 30.1 GW at 12:30. Carbon intensity averaged 122 g/kWh and the price £89.17/MWh. Wind generation peaked at 7.7 GW at 00:00. Solar generation peaked at 6.1 GW at 13:00. Carbon intensity was lowest at 00:00 (83 g/kWh) and highest at 19:30 (173 g/kWh). The wholesale price ranged from £73.49/MWh at 01:00 to £116.62/MWh at 18:30. Gas made 31% 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 1.636.1%Wind 5.7821.6%Gas 6.5924.6%Hydro 0.331.2%Biomass 2.338.7%Nuclear 4.5016.8%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 25.4avgGeneration 21.2avgTransfers 4.3avg
The day in figurespeaks, averages, totals
Peak demand30.1GW · 12:30
Low 18.8 · 05:05Avg 25.40–40 GW
Made in Great Britain83%of demand
Generation 21.2Transfers 4.3 GW
Net imports108GWh
In
132 Out
24
Zero-carbon share58%of generation
Nuclear 21%Hydro 2%Wind 27%Solar 8%

Transfers · Sat 21 Sept

Interconnectors and storage

On Saturday 21 September 2024, Great Britain imported 132 GWh and exported 24 GWh through its interconnectors. The most came from France (48 GWh), and the most exports went to Ireland (19 GWh).

All interconnectors

Sat 21 Sept
Imported
132GWh
Exported
24GWh
Net in
108GWh
Average net flow
4.49GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average1.00GWImporting

In 23.9 GWhOut 0.0 GWh

Denmark

Viking Link

Average0.45GWImporting

In 13.0 GWhOut 2.1 GWh

France

IFA · IFA2 · ElecLink

Average1.99GWImporting

In 47.8 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.78GWExporting

In 0.0 GWhOut 18.6 GWh

Netherlands

BritNed

Average0.43GWImporting

In 13.6 GWhOut 3.3 GWh

Norway

North Sea Link

Average1.40GWImporting

In 33.5 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.23GWPumping

Generated 3.6 GWhPumped 9.1 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.