Scenario-based evaluation on the impacts of electric vehicle on the municipal energy supply systems

By improving the ecological situation in the congested urban areas and reducing the dependence on fossil oil imports, a high penetration of electric vehicles (EV) in the automobile market is expected within the next years. Integration of area-wide charging infrastructures rises the challenge for the municipal energy supply systems to fulfill the demand of an increasing number of EV in the near future. Versatile technologies and integration strategies may be implemented in the charging regime, which might have significant impacts on the electrical distribution network. This paper presents the results of a comprehensive investigation in order to evaluate different charging concepts and strategies. Furthermore the resulting consequences on the battery management of the EV's are discussed by means of scenario-based evaluation and demand side management possibilities. The possible impacts on the charging behavior of EV-customers, driven by structurally changed prices for electrical energy due to a rising share of renewables will be also demonstrated.