Electricity Live

Great Britain’s electricity on Wednesday 18 September 2019

On Wednesday 18 September, demand averaged 31.1 GW. Renewables supplied 13%.

31.1GW AVERAGEWind1.75 GW5%Hydro0.50 GW2%Biomass1.67 GW5%Solar2.04 GW6%Gas16.10 GW50%Coal0.33 GW1%Imports3.08 GW10%Nuclear6.78 GW21%31.1GW AVERAGE50%10%21%
Price
£42.30/MWh
Day average £42.30
Demand31.1GW
Generation 29.2Transfers 2.0
Fossil fuels50%
Renewables13%
Other36%
Carbon intensityModerate
248g/kWh
0Day average 248300
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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 18 September 2019, gas supplied 50% of Great Britain’s electricity and nuclear 21%. Demand peaked at 37.5 GW at 14:05. Carbon intensity averaged 248 g/kWh and the price £42.30/MWh. Wind generation peaked at 2.2 GW at 07:50. Solar generation peaked at 6.9 GW at 13:00. Carbon intensity was lowest at 13:00 (217 g/kWh) and highest at 21:00 (291 g/kWh). The wholesale price ranged from £26.42/MWh at 15:00 to £66.44/MWh at 08:00. Gas made 55% of the electricity generated in Great Britain, compared with 43% across 2019.

Charts

Generation, demand, price and carbon

Generation by sourceGW · daily average below
Solar 2.046.3%Wind 1.755.4%Gas 16.1049.9%Hydro 0.501.6%Biomass 1.675.2%Nuclear 6.7821.0%Coal 0.331.0%
Price£/MWh
Carbon intensitygCO₂/kWh
Demand and generationGW
Demand 31.1avgGeneration 29.2avgTransfers 2.0avg
The day in figurespeaks, averages, totals
Peak demand37.5GW · 14:05
Low 21.6 · 03:40Avg 31.10–40 GW
Made in Great Britain94%of demand
Generation 29.2Transfers 2.0 GW
Net imports46GWh
In
69 Out
23
Zero-carbon share38%of generation
Nuclear 23%Hydro 2%Wind 6%Solar 7%

Transfers · Wed 18 Sept

Interconnectors and storage

On Wednesday 18 September 2019, Great Britain imported 69 GWh and exported 23 GWh through its interconnectors. The most came from France (43 GWh), and the most exports went to Ireland (23 GWh).

All interconnectors

Wed 18 Sept
Imported
69GWh
Exported
23GWh
Net in
46GWh
Average net flow
1.93GW in

Into Great BritainOut of Great Britain

Belgium

Nemo Link

Average0.85GWImporting

In 20.4 GWhOut 0.0 GWh

Denmark

Viking Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

France

IFA · IFA2 · ElecLink

Average1.79GWImporting

In 43.0 GWhOut 0.0 GWh

Ireland

Moyle · East–West · Greenlink

Average0.94GWExporting

In 0.0 GWhOut 22.6 GWh

Netherlands

BritNed

Average0.23GWImporting

In 5.4 GWhOut 0.0 GWh

Norway

North Sea Link

Average0.00GWIdle

In 0.0 GWhOut 0.0 GWh

Pumped storage

Dinorwig · Cruachan · Ffestiniog · Foyers

Average0.05GWGenerating

Generated 5.2 GWhPumped 4.0 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.