Overview
IEC 63119-2:2022 is an international standard developed by the International Electrotechnical Commission (IEC) that specifies use cases related to information exchange for electric vehicle (EV) charging roaming services. This part of the IEC 63119 series focuses on defining roaming use cases that enable communication between charging service providers (CSPs), charging station operators (CSOs), and clearing house platforms via roaming endpoints. The standard facilitates interoperability and user access to EV supply equipment belonging to different operators beyond the user’s home CSP.
As electric vehicle adoption grows globally, seamless roaming services become essential to provide EV drivers with convenient access to charging stations across various networks. IEC 63119-2:2022 supports this by outlining practical use cases necessary to enable effective information exchange, session management, and transactional processes during roaming.
Key Topics
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Use Case Hierarchy
The standard organizes use cases in a hierarchical structure, grouped by functional areas to ensure clarity and practical application.
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System Architecture and Actors
Identification of key actors such as CSPs, CSOs, and clearing houses, and their roles in data exchange and service execution.
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General Information Exchange
Includes platform authentication, sharing site information, and exchanging real-time status of charging spots.
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Tariff and Pricing Information
Procedures for informing home CSPs about tariffs and requesting pricing from visited CSOs.
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Energy Transfer Management
Detailed use cases on starting and stopping charging sessions remotely or locally, managing charging plans, and reserving EV supply equipment.
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Credentials Handling
Supports online and offline user identification mechanisms for authentication at visited sites.
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Supporting Functions
Maintenance notifications, outage management, and emergency cable unlocking to ensure user safety and system reliability.
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Cybersecurity and Privacy
Requirements for secure data transmission, role identification, information privacy protection, encryption key management, and data sharing principles are outlined to safeguard communication.
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Unique Identifiers and Session Management
Use of global unique identifiers and management of sessions and transactions to ensure consistent and reliable interactions between actors.
Applications
IEC 63119-2:2022 directly supports the development and deployment of interoperable EV charging roaming services worldwide. Practical applications include:
- Enabling EV drivers to access charging stations outside their home network effortlessly.
- Facilitating real-time exchange of site availability and status information for reliable charging experiences.
- Supporting dynamic tariff information exchange for transparent pricing during roaming sessions.
- Allowing multiple actors such as CSPs, CSOs, and clearing houses to coordinate during charging sessions, billing, and settlements.
- Ensuring secure communication that protects user identity and transaction data in roaming scenarios.
- Providing emergency support functions such as cable unlocking to prevent user inconvenience or safety hazards.
- Integrating new identification methods such as QR codes or RFID cards for streamlined user authentication.
This standard is especially valuable for EV charging network operators, roaming platform providers, software developers, and policymakers seeking to establish interoperable charging infrastructures compliant with international practices.
Related Standards
IEC 63119-2:2022 fits within the broader IEC 63119 series, which addresses information exchange for EV charging roaming services at a high communication level. Relevant standards related to electric vehicle charging communications also include:
- IEC 63110 - Protocol for management of electric vehicle charging and discharging infrastructures.
- ISO 15118 - Vehicle-to-grid communication interface enabling advanced charging functionalities.
- IEC 61850 - Communication networks and systems in substations, relevant for electrical interfaces supporting EV charging.
- OCPP (Open Charge Point Protocol) - Widely adopted protocol for communication between charging stations and management systems.
Combining IEC 63119-2:2022 with related standards ensures comprehensive interoperability and user-centric roaming experiences in the evolving EV charging ecosystem.
Adopting IEC 63119-2:2022 enables stakeholders to establish robust, secure, and user-friendly roaming services across multiple EV charging networks, significantly enhancing the usability and accessibility of electric vehicle infrastructure worldwide.