
An event that connects people & technology
The Vehicle Interoperability Testing Symposium (VOLTS) will connect the auto industry, electric vehicle charging infrastructure hardware and software providers, government, electric utilities, testing facilities, and policymakers to provide a forum for electric vehicle interoperability testing, speakers, networking and demonstrations.
This event is organized by the Charging Interface Initiative (CharIN) North America and other partners.

Why Attend?
Talk to representatives in the complete e-mobility value chain:
Learn more about CCS, MCS, and ISO 15118 than any other NA conference
Ensure your equipment complies with new federal regulations by learning from the best in the industry
Meet top subject matter experts in the EV standards arena through fun networking events and activities
Do more EV interoperability testing in two days than you could get done in a year
Improve your product with the test results

VOLTS Event Details
VOLTS One-Day Hybrid Conference:
May 9, 2023
at Hotel Maya in Long Beach, CA or Online
VOLTS Testing Event:
May 10*–11, 2023
in Long Beach, CA at WattEV Port of Long Beach location
*While EV interoperability testing events are typically closed to observers, this year we are making the first day of testing open to the public for registered attendees.
VOLTS 2023 is sponsored by: California Energy Commission and WattEV


Early Bird Registration is open! Space is limited, so don’t wait! Register today.
Testing space is limited and available on a first-come, first-serve basis. Testers must register no later than April 10 to participate in the event. All other attendees are encouraged to register in advance online, but walk-up registration will be available each day of the event. Check back for more details on registration locations. Find all information and registration Fees at VOLTS event website.