A Framework to Evaluate the Grid Impacts of EV Fleet Charging Solutions

Priti Paudyal, Rishabh Jain, Matthew Moniot, Andrew Thibeault

Research output: Contribution to conferencePaperpeer-review


Growing Electric vehicle (EV) adoption in residential and commercial applications is driving the need for the charging infrastructures required to fulfill the charging needs. The resulting increase in demand for electric power will add a significant load to the electric grid, which could negatively impact the grid operation. EVs are power electronic loads and draw harmonic currents which can lead to a host of power quality issues. Therefore, it is crucial to assess the grid impacts and management of EV charging loads to ensure the reliable operation of the electric grid. In this paper, we develop a framework to help determine power-quality impacts given an EV charging schedule on the system. We compare the performance of unmanaged and managed charging solutions on factors like voltage drop, flicker, harmonic distortion and the peak site load - based on the EV depot in Hazelwood school district. The results allow insights into operation and site design of EV depots.

Original languageAmerican English
Number of pages6
StatePublished - 2022
Event2022 North American Power Symposium, NAPS 2022 - Salt Lake City, United States
Duration: 9 Oct 202211 Oct 2022


Conference2022 North American Power Symposium, NAPS 2022
Country/TerritoryUnited States
CitySalt Lake City

Bibliographical note

Publisher Copyright:
© 2022 IEEE.

NREL Publication Number

  • NREL/CP-5D00-82723


  • Charging depot
  • Electric vehicles
  • evaluation framework
  • flicker-level
  • grid impact
  • total harmonic distortion (THD)
  • voltage


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