Full-Scale Electric Vehicles Penetration in the Danish Island of Bornholm – Optimal Scheduling and Battery Degradation under Driving Constraints

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The paper proposes an analysis of a 100% electric vehicle (EV) scenario on the energy system of the island of Bornholm in Denmark. The paper intends to present challenges and opportunities that a realistic system would face when completely shifting to electric transportation. The EVs are subject to different charging strategies in order to assess the impact on the grid, the potential savings on the charging cost and the effects on battery degradation. In contrast to uncontrolled charging, smart charging strategies are designed not only to satisfy the same charging requirements at the EV departure time, but also maximize the savings on the charging cost and avoid interconnection congestions. The smart strategy brings a reduction in the annual charging cost around 12%, on top of a reduction in the degradation because of
lower average SOC and number of cycles. Moreover, results show a limited benefit in bidirectional charging because of a marginal increase in savings: this more demanding operation, which allows discharges, leads to more battery degradation, due to the increase in the number of cycles.
Original languageEnglish
JournalJournal of Energy Storage
Volume23
Pages (from-to)381-391
ISSN2352-152X
DOIs
Publication statusPublished - 2019
CitationsWeb of Science® Times Cited: No match on DOI

    Research areas

  • Battery degradation, Electric Vehicles, Optimization, Smart Charging, User behavior, Vehicle-to-Grid
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