We introduced the first-ever CharIN V2G Testival EUROPE 2025 – Germany. The event took place in Berlin, Germany, at zeemobase on the EUREF-Campus on October 7 & 8, 2025, where participants immersed themselves in the world of e-mobility with a focus on V2G bidirectional charging functionality, testing, and interoperability.
The V2G Testival was held on a smaller scale, featuring approximately eight vehicles to enable focused, high-quality testing sessions.
As Host, inno2grid provided a dedicated setup for bidirectional EV chargers, controlled/smart charging, and interoperability testing of the ISO 15118-20 communication protocol, including mutual TLS and bidirectional charging functionality.
Event Info
Date:
10/07/2025 – 10/08/2025
Location:
Berlin, Germany
What is a CharIN V2G Testival?
The Testival focuses on the V2G framework, including tests of mutual TLS, ISO 15118-20 communication, controlled and smart charging, and bidirectional charging functional tests, where applicable. Key technical requirements for V2G-compatible EV and EVSE include compliance with ISO 15118-20 and TLS 1.3 to ensure secure, interoperable, and efficient energy exchange between vehicles and the grid.
Impressions of the CharIN V2G Testival
Technical Requirements for participants
What components and systems are required?
Bidirectional EVSE Chargers
Chargers are capable of both charging and discharging energy, enabling Vehicle-to-Grid (V2G) applications. These chargers must comply with industry standards such as ISO 15118-20 to ensure seamless communication between the EV, charger, and energy management system.
EV with V2G Capabilities
Vehicles must be equipped with bidirectional inverters and compatible onboard charging systems to support energy flow back to the grid. The effectiveness of V2G is influenced by the EV's battery capacity, state of charge, and the vehicle manufacturer's implementation of bidirectional charging protocols.
Grid Connection & Energy Management System (EMS)
A stable and intelligent grid connection is necessary to handle bidirectional power exchange efficiently. The EMS plays a crucial role in managing energy flows, optimizing grid stability, and ensuring power distribution aligns with demand and supply.
Communication Protocols
Standards like ISO 15118-20 (for vehicle-to-grid communication) ensure interoperability across different manufacturers and energy providers. These protocols support advanced functionalities such as Plug & Charge, cybersecurity mechanisms, and load balancing, making them essential for seamless integration into existing grid infrastructure.
Agenda and Times
Please note that the agenda is subject to change and additional information will be added subsequently. All times are local to event timezone - CEST.
Arrival & Set-Up Day
01:00 pm – 4:00 pm
mandatory for all testing equipment
Testing Day 1
09:00 am – 6:00 pm Testing activities
Testing Day 2 / Public Day
09:00 am – 04:30 pm Testing Activities
09:00 am - 09:30 am Opening Public Day with welcome words from
Claas Bracklo & André Kaufung - CharIN e.V.
Michael Blohm - Federal Ministry of Economic Affairs and Energy
Representative of the Federal Ministry of Transport
Sebastian Wolfsteiner - Schneider Electric
Karin Teichmann - EUREF Campus
09:30 am - 10:00 am Testival Tour
10:30 am - 11:00 am Energy Management and Bidirectional Charging - the Path for intereroperability in home applications - Sebastian Wolfsteiner & Fabian Schilf - Schneider Electric
11:30 am - 12:00 pm How to overcome Interoperability issues to scale up V2G - Jürgen Werneke - Hubject
12:00 pm - 12:30 pm From Cars to Market Flexibility: Leading the V2G Revolution - Stefan Morscher - The Mobility House
12:30 pm - 02:30 pm Lunch
02:30 pm - 03:00 pm Interoperability in Action: V2G Testing for a Connected Future - Sven Gröning - Keysight
03:00 pm - 03:30 pm Future of Charging Conformance - Michael Keller - CharIN Academy GmbH
03:30 pm - 04:00 pm Q&A & Closing words - Claas Bracklo - CharIN e.V.
Testing Companies
EV
AC
DC
EVSE
AC
DC
Test System
AC
DC
Sponsors
Hubject
Event Sponsor
Schneider Electric
Event Sponsor
The Mobility House GmbH
Back End Sponsor
Host: inno2grid
inno2grid is a joint venture of DB E.C.O. Group and Schneider Electric that offers integrated solutions at the interface of energy, mobility, and digitalization. Based at the EUREF-Campus in Berlin, inno2grid focuses on developing and implementing forward-thinking concepts for sustainable urban development, smart infrastructure, and connected mobility systems.
With a strong focus on innovation and practical implementation, inno2grid supports cities, utilities, and companies in their decarbonization strategies through tailored services in areas such as electric mobility, charging infrastructure, fleet transformation, and energy management.
As the host of the V2G Testival, inno2grid will provide a unique venue and technical expertise, reinforcing its commitment to shaping the future of integrated, intelligent, and sustainable mobility solutions.
Strategic Testing Partner: Hubject
Hubject simplifies the charging of electric vehicles. Through its eRoaming platform intercharge, the eMobility specialist connects Charge Point Operators (CPOs) and eMobility Service Providers (EMPs) to provide standardized access to charging infrastructure. Hubject operates the world's largest cross-provider charging network, connecting over 1,000,000 charging points and more than 2,750 B2B partners across 70+ countries. Hubject is also a leader in Plug&Charge technology, using ISO 15118-2 and -20 standards to deliver secure, seamless EV charging experiences, and is the first EV-related company to offer financial services for EV companies based on its own payment license.
Technical Partner: Keysight Technologies
Keysight Technologies Deutschland GmbH is dedicated to providing tomorrow’s test technologies today, enabling our customers to connect and secure the world with their innovations.
Meet the Community
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