Vehicle Interoperability Testing Symposium (VOLTS)

A special interoperability testing event in California, granted by the California Energy Commission (CEC), took place in the second week of May in Port of Longbeach, hosted by WattEV.

VOLTS represented a key platform to enable end-to-end-testing which is a prerequisite for a seamless customer journey and thus significantly contributes to accelerating the market ramp-up of electromobility.

Please find all detailed information about the VOLTS event at the event website:

The VOLTS Testing Symposium hosted over 400 attendees to observe industry experts actively testing ISO 15118 and its features through a series of public demonstrations. There were 4 school buses, 4 trucks, 13 electric cars, 18 charging stations, and 7 test systems. For the first time ever, results of this testing is publicly-available.

Now available: The first of its kind, public interoperability testing data collected at VOLTS 2023.

This report contains:

  • Almost 400 hours of interoperability testing data which took place over the course of 2 days, across 7 test slots, and 174 EV-EVSE 2 hour pairings.
  • Summarization of over 1,000 individual tests where more than 50% of all tests used ISO 15118 communication.
  • Critical next steps to support an interoperable EV charging ecosystem.

Event Info

Date: 05/09/2023 – 05/11/2023
Location: Los Angeles, CA, USA

Event contacts

Erika Myers

Executive Director, Charging Interface Initiative North America (CharIN Inc.)

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