Lesson

Evaluation of sites for direct current fast charging systems should consider local permitting regulations, loss of space, ground surface conditions, and availability of local electrical service.

The U. S. Department of Energy's evaluation of the 2011 EV Project.


05/01/2017


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Lesson Learned

There are a number of considerations involved in the decision of DCFC systems.
  • Permitting. Significant changes in a host facility's electrical and physical systems through addition of a DCFC will typically require a permit from local building authorities. Fees for permits have been reported to cost as much as $6,500 per site with associated engineering costs ranging from $1,500 to $3,000 per site.
  • Loss of Space. When DCFC systems are installed in existing parking lots the adjacent parking spots are generally reserved only for DCFC charging. This reduces the availability of parking for vehicles not charging.
  • Ground Surface Conditions. Underground utilities and aboveground features could interfere with installation of DCFCs.
  • Electrical Service. Potential DCFC site hosts must determine if their site has sufficient available electrical capacity, noting that current DCFCs typically provide up to 50 kW of power when charging a vehicle.



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Source

Considerations for Corridor and Community DC Fast Charging Complex System Design

Author: Francfort, Jim, et al.

Published By: U. S. Department of Energy

Source Date: 05/01/2017

Other Reference Number: INL/EXT-17-40829

URL: https://avt.inl.gov/sites/default/files/pdf/reports/DCFCChargingComplexSystemDesign.pdf

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Policy & Planning > Planning

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Systems Engineering

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System Requirements

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Lesson ID: 2017-00785