Electricity Live

Great Britain’s electricity on Sunday 17 September 2023

On Sunday 17 September, demand averaged 24.8 GW. Renewables supplied 32%.

24.8GW AVERAGEWind7.49 GW28%Hydro0.22 GW1%Biomass1.15 GW4%Solar0.77 GW3%Gas6.62 GW25%Coal0.45 GW2%Imports4.84 GW18%Nuclear5.19 GW19%24.8GW AVERAGE28%25%18%19%
Price
£90.84/MWh
Day average £90.84
Demand24.8GW
Generation 21.9Transfers 2.9
Fossil fuels25%
Renewables32%
Other42%
Carbon intensityLow
127g/kWh
0Day average 127300
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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 Sunday 17 September 2023, wind supplied 28% of Great Britain’s electricity and gas 25%. Demand peaked at 29.7 GW at 13:10. Carbon intensity averaged 127 g/kWh and the price £90.84/MWh. Wind generation peaked at 9.0 GW at 23:30. Solar generation peaked at 2.7 GW at 10:30. Carbon intensity was lowest at 23:00 (90 g/kWh) and highest at 18:30 (176 g/kWh). The wholesale price ranged from £54.03/MWh at 04:30 to £135.59/MWh at 17:30. Wind made 34% 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 0.772.9%Wind 7.4928.0%Gas 6.6224.8%Hydro 0.220.8%Biomass 1.154.3%Nuclear 5.1919.4%Coal 0.451.7%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 24.8avgGeneration 21.9avgTransfers 2.9avg
The day in figurespeaks, averages, totals
Peak demand29.7GW · 13:10
Low 18.2 · 04:25Avg 24.80–30 GW
Made in Great Britain88%of demand
Generation 21.9Transfers 2.9 GW
Net imports72GWh
In
112 Out
40
Zero-carbon share62%of generation
Nuclear 24%Hydro 1%Wind 34%Solar 4%

Transfers · Sun 17 Sept

Interconnectors and storage

On Sunday 17 September 2023, Great Britain imported 112 GWh and exported 40 GWh through its interconnectors. The most came from France (64 GWh), and the most exports went to Ireland (23 GWh).

All interconnectors

Sun 17 Sept
Imported
112GWh
Exported
40GWh
Net in
72GWh
Average net flow
3.01GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.37GWImporting

In 11.6 GWhOut 2.6 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average2.66GWImporting

In 63.8 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.95GWExporting

In 0.0 GWhOut 22.8 GWh

Netherlands

BritNed

Average0.47GWExporting

In 2.8 GWhOut 14.2 GWh

Norway

North Sea Link

Average1.40GWImporting

In 33.6 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.08GWPumping

Generated 4.4 GWhPumped 6.2 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.