Electricity Live

Great Britain’s electricity on Saturday 23 September 2023

On Saturday 23 September, demand averaged 25.4 GW. Renewables supplied 32%.

25.4GW AVERAGEWind5.90 GW22%Hydro0.63 GW2%Biomass1.15 GW4%Solar2.02 GW8%Gas6.67 GW25%Coal0.61 GW2%Imports4.49 GW17%Nuclear5.17 GW19%25.4GW AVERAGE22%8%25%17%19%
Price
£85.38/MWh
Day average £85.38
Demand25.4GW
Generation 22.2Transfers 3.3
Fossil fuels25%
Renewables32%
Other41%
Carbon intensityModerate
139g/kWh
0Day average 139300
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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 23 September 2023, gas supplied 25% of Great Britain’s electricity and wind 22%. Demand peaked at 29.8 GW at 11:55. Carbon intensity averaged 139 g/kWh and the price £85.38/MWh. Wind generation peaked at 13.4 GW at 23:10. Solar generation peaked at 7.1 GW at 11:30. Carbon intensity was lowest at 23:30 (68 g/kWh) and highest at 18:30 (189 g/kWh). The wholesale price ranged from £56.45/MWh at 23:30 to £111.61/MWh at 19:00. Gas made 30% 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 2.027.6%Wind 5.9022.2%Gas 6.6725.0%Hydro 0.632.4%Biomass 1.154.3%Nuclear 5.1719.4%Coal 0.612.3%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 25.4avgGeneration 22.2avgTransfers 3.3avg
The day in figurespeaks, averages, totals
Peak demand29.8GW · 11:55
Low 18.7 · 04:20Avg 25.40–30 GW
Made in Great Britain87%of demand
Generation 22.2Transfers 3.3 GW
Net imports77GWh
In
103 Out
26
Zero-carbon share62%of generation
Nuclear 23%Hydro 3%Wind 27%Solar 9%

Transfers · Sat 23 Sept

Interconnectors and storage

On Saturday 23 September 2023, Great Britain imported 103 GWh and exported 26 GWh through its interconnectors. The most came from France (47 GWh), and the most exports went to Netherlands (11 GWh).

All interconnectors

Sat 23 Sept
Imported
103GWh
Exported
26GWh
Net in
77GWh
Average net flow
3.21GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.26GWImporting

In 9.6 GWhOut 3.2 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average1.88GWImporting

In 47.3 GWhOut 2.1 GWh

Ireland

Moyle · East–West · Greenlink

Average0.20GWExporting

In 5.2 GWhOut 10.1 GWh

Netherlands

BritNed

Average0.13GWExporting

In 7.6 GWhOut 10.8 GWh

Norway

North Sea Link

Average1.40GWImporting

In 33.6 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.08GWGenerating

Generated 4.4 GWhPumped 2.6 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.