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Colloquium lecture, 26 January 2021, Vincent Barthel

Bild der Präsentationsfläche

“Quantifizierung des Flexibilitätspotentials einer elektrischen Fahrzeugflotte für Anwendung im Stromsektor”

 

In order to mitigate climate change, a change in mobility is necessary in addition to
the change in energy production to renewable energies. Electromobility represents
a CO2-neutral mobility alternative in operation. The additional energy demand of
electromobility, especially the occurring load peaks at high simultaneity can lead
to problems for the supply network. A way has to be created to integrate electric
vehicles into the existing supply network without affecting its stability and safety.
One possibility is to shift the load in times of uncritical grid situations. In order for this
to be possible without restrictions on mobility requirements, the charging processes
have to be flexible in their behavior. In order to determine the flexibility, this thesis
analyzes the charging characteristics of charging events on the basis of real data of
electric vehicle fleets from different sectors and from this the flexibility potential
in these fleets is investigated and analyzed. It has been shown that unidirectional,
controlled charging enables charging processes to be postponed in terms of time and
performance and can thus contribute to a better integration of electromobility into
the supply system. By using the charge-specific shifting flexibility, a reduction of the
characteristic load peaks by at least 30% has been proven. In addition, a cost-related
charge optimization was used to show that a beneficial use of flexibility can also
have a positive influence on the integration of renewable energies. The savings
potential through Smart Sourcing was examined for several wholesale markets. A
saving for energy procurement of up to 80% by controlled charging compared to the
real market costs by uncontrolled charging has been shown. Compared to a utility
tariff, the potential increases again. By elaborating and quantifying the flexibility
potential of charging processes it has been shown that this potential can be used
for a better integration of electromobility into the existing supply system by use of
controlled charging.

 

 

Time: 10:15 a.m.

 

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