Electricity Live

Great Britain’s electricity on Friday 29 September 2023

On Friday 29 September, demand averaged 27.8 GW. Renewables supplied 51%.

27.8GW AVERAGEWind12.37 GW42%Hydro0.64 GW2%Biomass1.20 GW4%Solar2.27 GW8%Gas6.12 GW21%Coal0.40 GW1%Imports1.85 GW6%Nuclear4.96 GW17%27.8GW AVERAGE42%8%21%17%
Price
£78.45/MWh
Day average £78.45
Demand27.8GW
Generation 28.0Transfers −0.1
Fossil fuels21%
Renewables51%
Other27%
Carbon intensityLow
104g/kWh
0Day average 104300
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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 29 September 2023, wind supplied 42% of Great Britain’s electricity and gas 21%. Demand peaked at 33.8 GW at 09:30. Carbon intensity averaged 104 g/kWh and the price £78.45/MWh. Wind generation peaked at 16.0 GW at 10:00. Solar generation peaked at 8.2 GW at 13:00. Carbon intensity was lowest at 12:00 (53 g/kWh) and highest at 18:00 (162 g/kWh). The wholesale price ranged from £38.58/MWh at 15:00 to £106.49/MWh at 06:00. Wind made 44% 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 2.277.6%Wind 12.3741.5%Gas 6.1220.5%Hydro 0.642.1%Biomass 1.204.0%Nuclear 4.9616.7%Coal 0.401.3%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 27.8avgGeneration 28.0avgTransfers −0.1avg
The day in figurespeaks, averages, totals
Peak demand33.8GW · 09:30
Low 20.3 · 02:20Avg 27.80–40 GW
Made in Great Britain101%of demand
Generation 28.0Transfers −0.1 GW
Net imports2GWh
In
42 Out
40
Zero-carbon share72%of generation
Nuclear 18%Hydro 2%Wind 44%Solar 8%

Transfers · Fri 29 Sept

Interconnectors and storage

On Friday 29 September 2023, Great Britain imported 42 GWh and exported 40 GWh through its interconnectors. The most came from Norway (32 GWh), and the most exports went to Ireland (16 GWh).

All interconnectors

Fri 29 Sept
Imported
42GWh
Exported
40GWh
Net in
2GWh
Average net flow
0.07GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average0.05GWImporting

In 9.3 GWhOut 8.1 GWh

Ireland

Moyle · East–West · Greenlink

Average0.69GWExporting

In 0.0 GWhOut 16.5 GWh

Netherlands

BritNed

Average0.62GWExporting

In 0.8 GWhOut 15.5 GWh

Norway

North Sea Link

Average1.33GWImporting

In 31.8 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.22GWPumping

Generated 2.5 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.