Synergies between e-Mobility and Photovoltaic Potentials—A Case Study on an Urban Medium Voltage Grid
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Chair of Energy Network Technology, Montanuniversitaet Leoben, Franz-Josef Straße 18, A-8700 Leoben, Austria
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Verkehrplus—Prognose, Planung und Strategieberatung GmbH, Elisabethinergasse 27a, A-8020 Graz, Austria
*
Author to whom correspondence should be addressed.
Energies 2020, 13(15), 3795; https://doi.org/10.3390/en13153795
Received: 15 June 2020
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Revised: 20 July 2020
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Accepted: 22 July 2020
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Published: 23 July 2020
(This article belongs to the Special Issue Electric Systems for Transportation)
To reduce CO2 emissions, it is necessary to cover the increasing energy demand of e-mobility with renewable energy sources. Therefore, the influence of increasing e-mobility and synergy effects between e-mobility and renewable energy sources need to be investigated. The case study presented here shows results from the analysis of grid-side and energetic synergy effects between e-mobility charged only at work and photovoltaic (PV) potentials. The basis of the grid study is a simplified cell-based grid model. Following the determination of synthetic charging profiles for e-mobility, PV potential profiles, load and production profiles, we perform load flow calculations for different scenarios and a simulation period of one year using the grid model. After the grid study, the energy analyses are carried out using four key performance indicators. The grid study shows that line overloads caused by PV production are only reduced and not avoided by increasing e-mobility and vice versa. The increase in the power peak of e-mobility, by shifting the charging processes into the peak of PV potentials, leads to a reduction of the production surplus in summer, while in winter the line utilisation increases. By modelling PV potentials on real irradiation and temperature data, the investigation of key performance indicators can identify not only seasonal fluctuations but also daily fluctuations.
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Keywords:
electric vehicles; power grid; grid-side effects; photovoltaic potentials; controlled charging
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MDPI and ACS Style
Vopava, J.; Bergmann, U.; Kienberger, T. Synergies between e-Mobility and Photovoltaic Potentials—A Case Study on an Urban Medium Voltage Grid. Energies 2020, 13, 3795. https://doi.org/10.3390/en13153795
AMA Style
Vopava J, Bergmann U, Kienberger T. Synergies between e-Mobility and Photovoltaic Potentials—A Case Study on an Urban Medium Voltage Grid. Energies. 2020; 13(15):3795. https://doi.org/10.3390/en13153795
Chicago/Turabian StyleVopava, Julia, Ulrich Bergmann, and Thomas Kienberger. 2020. "Synergies between e-Mobility and Photovoltaic Potentials—A Case Study on an Urban Medium Voltage Grid" Energies 13, no. 15: 3795. https://doi.org/10.3390/en13153795
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