Select a pricing strategy incentivizing drivers to unplug from electric vehicle charging stations shortly after they finish charging to enable others to use the station.

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


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Lesson Learned

Owners of EV charging stations can choose to charge customers by kWh, by the hour, per session, or some combination thereof. Billing for the electricity consumed (by kWh) seems intuitive, but does not incentivize drivers to unplug once the vehicle is fully charged and regulations in some states prohibit sales of electricity by entities that are not electric utilities and this strategy does not incentivize the driver to unplug after their vehicle is fully charged.

Where allowed by law, a charging site host may consider a hybrid strategy, where the consumer pays for the electricity consumed and then time spent plugged in once the vehicle is finished charging.

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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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Lesson ID: 2017-00786