Electricity Live

Great Britain’s electricity on Wednesday 27 September 2023

On Wednesday 27 September, demand averaged 29.2 GW. Renewables supplied 42%.

29.2GW AVERAGEWind11.53 GW37%Hydro0.61 GW2%Biomass1.33 GW4%Solar0.76 GW2%Gas8.12 GW26%Coal0.76 GW2%Imports2.81 GW9%Nuclear5.08 GW16%29.2GW AVERAGE37%26%9%16%
Price
£86.37/MWh
Day average £86.37
Demand29.2GW
Generation 28.2Transfers 1.0
Fossil fuels26%
Renewables42%
Other30%
Carbon intensityLow
143g/kWh
0Day average 143300
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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 Wednesday 27 September 2023, wind supplied 37% of Great Britain’s electricity and gas 26%. Demand peaked at 34.7 GW at 11:00. Carbon intensity averaged 143 g/kWh and the price £86.37/MWh. Wind generation peaked at 19.4 GW at 18:30. Solar generation peaked at 3.0 GW at 11:00. Carbon intensity was lowest at 23:30 (55 g/kWh) and highest at 05:00 (228 g/kWh). The wholesale price ranged from −£28.77/MWh at 23:30 to £135.86/MWh at 06:30. The price was below zero for 1 hours. Wind made 41% 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 0.762.5%Wind 11.5337.2%Gas 8.1226.2%Hydro 0.612.0%Biomass 1.334.3%Nuclear 5.0816.4%Coal 0.762.4%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 29.2avgGeneration 28.2avgTransfers 1.0avg
The day in figurespeaks, averages, totals
Peak demand34.7GW · 11:00
Low 20.5 · 04:05Avg 29.20–40 GW
Made in Great Britain96%of demand
Generation 28.2Transfers 1.0 GW
Net imports21GWh
In
62 Out
41
Zero-carbon share64%of generation
Nuclear 18%Hydro 2%Wind 41%Solar 3%

Transfers · Wed 27 Sept

Interconnectors and storage

On Wednesday 27 September 2023, Great Britain imported 62 GWh and exported 41 GWh through its interconnectors. The most came from Norway (33 GWh), and the most exports went to France (22 GWh).

All interconnectors

Wed 27 Sept
Imported
62GWh
Exported
41GWh
Net in
21GWh
Average net flow
0.86GW 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

Average0.12GWExporting

In 18.9 GWhOut 21.9 GWh

Ireland

Moyle · East–West · Greenlink

Average0.17GWImporting

In 6.3 GWhOut 2.2 GWh

Netherlands

BritNed

Average0.57GWExporting

In 3.6 GWhOut 17.2 GWh

Norway

North Sea Link

Average1.38GWImporting

In 33.1 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.18GWGenerating

Generated 5.5 GWhPumped 1.1 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.