Electricity Live

Great Britain’s electricity on Tuesday 19 September 2023

On Tuesday 19 September, demand averaged 28.9 GW. Renewables supplied 56%.

28.9GW AVERAGEWind16.21 GW53%Hydro0.29 GW1%Biomass1.03 GW3%Solar0.65 GW2%Gas3.58 GW12%Coal0.09 GW0%Imports3.47 GW11%Nuclear5.16 GW17%28.9GW AVERAGE53%12%11%17%
Price
£65.10/MWh
Day average £65.10
Demand28.9GW
Generation 27.0Transfers 1.9
Fossil fuels12%
Renewables56%
Other32%
Carbon intensityLow
61g/kWh
0Day average 61300
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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 Tuesday 19 September 2023, wind supplied 53% of Great Britain’s electricity and nuclear 17%. Demand peaked at 34.8 GW at 17:25. Carbon intensity averaged 61 g/kWh and the price £65.10/MWh. Wind generation peaked at 18.2 GW at 20:40. Solar generation peaked at 2.2 GW at 12:00. Carbon intensity was lowest at 21:00 (40 g/kWh) and highest at 18:30 (74 g/kWh). The wholesale price ranged from −£27.08/MWh at 23:30 to £102.10/MWh at 07:30. The price was below zero for 1 hours. Wind made 60% of the electricity generated in Great Britain, compared with 33% across 2023.

Charts

Generation, demand, price and carbon

Generation by sourceGW · daily average below
Solar 0.652.1%Wind 16.2153.2%Gas 3.5811.7%Hydro 0.291.0%Biomass 1.033.4%Nuclear 5.1616.9%Coal 0.090.3%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 28.9avgGeneration 27.0avgTransfers 1.9avg
The day in figurespeaks, averages, totals
Peak demand34.8GW · 17:25
Low 20.2 · 04:45Avg 28.90–40 GW
Made in Great Britain93%of demand
Generation 27.0Transfers 1.9 GW
Net imports48GWh
In
77 Out
29
Zero-carbon share83%of generation
Nuclear 19%Hydro 1%Wind 60%Solar 2%

Transfers · Tue 19 Sept

Interconnectors and storage

On Tuesday 19 September 2023, Great Britain imported 77 GWh and exported 29 GWh through its interconnectors. The most came from France (36 GWh), and the most exports went to France (11 GWh).

All interconnectors

Tue 19 Sept
Imported
77GWh
Exported
29GWh
Net in
48GWh
Average net flow
2.02GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.06GWImporting

In 9.6 GWhOut 8.2 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average1.02GWImporting

In 35.9 GWhOut 11.3 GWh

Ireland

Moyle · East–West · Greenlink

Average0.28GWExporting

In 2.5 GWhOut 9.2 GWh

Netherlands

BritNed

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Norway

North Sea Link

Average1.22GWImporting

In 29.2 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.07GWPumping

Generated 6.1 GWhPumped 7.7 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.