Electricity Live

Great Britain’s electricity on Friday 15 September 2023

On Friday 15 September, demand averaged 27.6 GW. Renewables supplied 19%.

27.6GW AVERAGEWind3.03 GW10%Hydro0.21 GW1%Biomass1.39 GW5%Solar2.20 GW8%Gas12.57 GW43%Coal0.51 GW2%Imports4.14 GW14%Nuclear5.19 GW18%27.6GW AVERAGE10%8%43%14%18%
Price
£88.56/MWh
Day average £88.56
Demand27.6GW
Generation 25.1Transfers 2.5
Fossil fuels43%
Renewables19%
Other37%
Carbon intensityModerate
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 Friday 15 September 2023, gas supplied 43% of Great Britain’s electricity and nuclear 18%. Demand peaked at 34.0 GW at 11:30. Carbon intensity averaged 198 g/kWh and the price £88.56/MWh. Wind generation peaked at 5.5 GW at 20:30. Solar generation peaked at 7.6 GW at 13:00. Carbon intensity was lowest at 23:30 (127 g/kWh) and highest at 07:00 (237 g/kWh). The wholesale price ranged from £68.48/MWh at 14:30 to £119.38/MWh at 07:30. Gas made 50% 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 2.207.5%Wind 3.0310.4%Gas 12.5743.0%Hydro 0.210.7%Biomass 1.394.7%Nuclear 5.1917.7%Coal 0.511.7%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 27.6avgGeneration 25.1avgTransfers 2.5avg
The day in figurespeaks, averages, totals
Peak demand34.0GW · 11:30
Low 20.2 · 04:55Avg 27.60–40 GW
Made in Great Britain91%of demand
Generation 25.1Transfers 2.5 GW
Net imports60GWh
In
96 Out
37
Zero-carbon share42%of generation
Nuclear 21%Hydro 1%Wind 12%Solar 9%

Transfers · Fri 15 Sept

Interconnectors and storage

On Friday 15 September 2023, Great Britain imported 96 GWh and exported 37 GWh through its interconnectors. The most came from France (50 GWh), and the most exports went to Ireland (19 GWh).

All interconnectors

Fri 15 Sept
Imported
96GWh
Exported
37GWh
Net in
60GWh
Average net flow
2.48GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.02GWImporting

In 7.0 GWhOut 6.7 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average2.07GWImporting

In 49.7 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.78GWExporting

In 0.0 GWhOut 18.6 GWh

Netherlands

BritNed

Average0.23GWExporting

In 5.9 GWhOut 11.4 GWh

Norway

North Sea Link

Average1.40GWImporting

In 33.6 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.04GWGenerating

Generated 3.1 GWhPumped 2.1 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.