We discovered the latest developments in e-mobility and interoperability while testing a variety of vehicles, charging stations, and communication controllers. We networked with stakeholders from across the e-mobility value chain, forging valuable connections in person.
Event Info
Date:
05/13/2025 – 05/15/2025
Location:
Detroit, MI, USA
Recap of the Testival
The CharIN Testival NA 2025, hosted by the American Center for Mobility in Detroit, Michigan, offered the EV industry the unique opportunity to test the interoperability of their equipment and uncover integration challenges, communication errors, and incompatibilities that can occur when EVs and electric vehicle supply equipment (EVSE) interact.
Impressions of the CharIN Testival
Testing Companies
EV
EVSE
Test System
Our Sponsors
ChargeX
End-to-end, open-source testing of advanced capabilities Sponsor
CharIN Inc.
Catering Sponsor
Soundcoat
Exhibitor
PennEngineering
Exhibitor
WattEV, Inc.
Event Sponsor
Additional features at Testival 2025
CharIN has extended the scope of the Testival with an additional testing option. Together with our Strategic Plug & Charge Testing Partner Hubject, we offered the possibility to perform Plug & Charge end-to-end testing.
What does this mean?
In addition to the Plug & Charge Conformance Testing as part of the standard Testival ticket, you could test the interoperability of Plug & Charge under real conditions. Hubject provided a CPO backend, an eMSP service and a Plug & Charge ecosystem. The CPO Backend and the eMSP Service were connected to the Plug & Charge Ecosystem and participating EVSEs could connect to the CPO Backend via OCPP.
At the recent CharIN Testival, for the regular round-robin testing, the provision of an Online V2G PKI for PnC via a CPMS for End2End testing use was used. This testing option featured a CPMS Backend, eMSP service, and Plug & Charge ecosystem, where EVSEs could connect to the CPMS Backend via the OCPP standard. Participants were required to complete the onboarding process for both EVSEs and EVs.
Additionally, an exciting new feature, Multi V2G PKI Testing, allowed for testing multiple V2G PKIs at a dedicated location, which required prior EV onboarding. The testing was conducted at a dedicated test location where separate EVSEs or Test Systems with different V2G PKIs were prepared. Participants were required to complete the onboarding process for EVs, ensuring smooth testing procedures. The testers received the opportunity to sign up during the technical registration.
Partners: CSMS: Lynkwell, Roaming hub + eMSP: ChargeHub, EVSE: Autel
We invited participants to a groundbreaking demo, which showcased the first-ever Plug and Charge session enabled through a roaming hub. This demonstration walked through the full process—from Preparation and Authentication to Authorization and final Reconciliation—proving true interoperability across ecosystems. It highlighted how Plug and Charge could seamlessly extend beyond isolated networks to support roaming scenarios at scale.
An optional prescribed testing program, managed by the event site host American Center for Mobility (ACM), was offered during the CharIN May 2025 Testival. This program was developed with support from the ChargeX Consortium, using prescribed tests that were chosen based on industry feedback through ChargeX Testing Task Force meetings. Below were some core details of the prescribed test program:
- Running on Day 1 (May 13th) and Day 2 (May 14th) only
- Gamified, competition style program with points assigned to test attempts & pass criteria
- Awards available for recognizing testing achievements
- 40-minutes of test slot dedicated to Prescribed Testing
- 10-15 Interoperability Test Scenarios to choose from
- ACM moderators to facilitate prescribed testing period
- Testing Categories include: Start/Stop methods, HLC protocol selection, fault injection, error reporting, Pause&Resume, Plug&Charge, Adapters, Vehicle-2-Grid, etc.
Cranked up the testing!
The open-source EVerest project, winner of numerous prescribed testing awards at the November Testival, was back in a special test booth sponsored by ChargeX. There, participants could test against all the new features contributed by multiple members of the EVerest community in the preceding months, including ISO 15118-20 with TLS 1.3 and ESDP, and perform end-to-end testing with an open-source CSMS.
If time permitted, advanced grid integration and energy management features were also explored, such as departure time and notify limit, with a specific focus on L2 charging.
Visitors stopped by the booth near Test Slot 19 to see how far the project had come!
Host: American Center for Mobility
The American Center for Mobility (ACM) is a premier global development center dedicated to revolutionizing mobility technologies with a focus on safety, sustainability, and security.
Located on 500+ acres at the historic Willow Run site in Ypsilanti, Michigan, ACM features:
Advanced Mobility Proving Ground: A state-of-the-art facility for testing and validating connected, autonomous, and electric vehicles in specialized environments.
Innovation and Technology Campus: A collaborative hub for the co-location and incubation of mobility companies and technologies.
Event and Demonstration Areas: Spaces designed for showcasing cutting-edge mobility innovations and fostering industry engagement.
ACM welcomes private industry, startups, government entities, standards organizations, and academia to collaborate and drive the future of mobility.
Strategic Testing Partner: Hubject
Hubject is a global innovation leader in electric vehicle (EV) charging solutions, advancing the transition to zero-emission mobility through seamless, secure, and scalable ecosystems. Headquartered in Berlin, Germany, with offices in Los Angeles and Shanghai, Hubject drives the eMobility industry with:
Intercharge Network: The world's largest eRoaming platform, connecting over 2,500 partners across 70+ countries and providing access to 1,000,000+ charge points. This interoperability foundation bridges network fragmentation, enabling drivers to charge anywhere with a single contract.
Plug & Charge Ecosystem: Advanced automated authentication and payment solutions based on ISO 15118 standards. Hubject's expertise delivers secure, intuitive charging experiences and is proven through global initiatives like CharIN's Plug & Charge Testival.
Integrated Financial & Consulting Services: Comprehensive solutions that streamline cross-border transactions, optimize operational costs, and support businesses through market entry, regulatory compliance, and technology implementation. Hubject works alongside automakers, utilities, charging point operators, and governments to create a future where EV charging is seamless, accessible, and user-centric.
Invitation to Innovate: Hubject collaborates with the majority of automotive OEMs, CPOs, EMPs, and technology providers to create the future of e-mobility infrastructure. Join us in accelerating the shift to sustainable transportation.
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