Impact of electric vehicle penetration-based charging demand on load profile

Woo Jae Park, Kyung Bin Song, Jung Wook Park

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)


This paper presents a study the change of the load profile on the power system by the charging impact of electric vehicles (EVs) in 2020. The impact of charging EVs on the load demand is determined not only by the number of EVs in usage pattern, but also by the number of EVs being charged at once. The charging load is determined on an hourly basis using the number of the EVs based on different scenarios considering battery size, model, the use of vehicles, charging at home or work, and the method of charging, which is either fast or slow. Focusing on the impact of future load profile in Korea with EVs reaching up 10 and 20 percentage, increased power demand by EVs charging is analyzed. Also, this paper analyzes the impact of a time-of-use (TOU) tariff system on the charging of EVs in Korea. The results demonstrate how the penetration of EVs increases the load profile and decreases charging demand by TOU tariff system on the future power system.

Original languageEnglish
Pages (from-to)244-251
Number of pages8
JournalJournal of Electrical Engineering and Technology
Issue number2
Publication statusPublished - 2013 Mar

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering


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