OCPP 2.0.1 and OCPI handle session management differently in multi-tenant networks. OCPP 2.0.1 manages sessions directly at the charge point level, offering granular control but requiring more configuration. OCPI, on the other hand, centralizes session data through roaming platforms, enabling better interoperability across operators but with less direct control at the charger level.
How Session Data is Handled
OCPP 2.0.1 stores session data locally on the charge point or within a central system, depending on the implementation. This approach allows for real-time updates and immediate access to session details. However, it can lead to inconsistencies if multiple systems aren’t synchronized properly. In contrast, OCPI uses a centralized data model where session information is shared through a roaming platform, ensuring uniformity across different operators.
This difference impacts how session data is accessed and updated. For example, a roaming operator using OCPI can retrieve session details from a single source, regardless of which charge point was used. OCPP 2.0.1 may require querying multiple systems or charge points directly.
Impact on Multi-Tenant Charging Networks
In multi-tenant environments, OCPP 2.0.1’s direct session handling can complicate billing and access control. Each tenant may need separate configurations, increasing administrative overhead. OCPI’s centralized approach simplifies this by allowing a single platform to manage sessions across tenants.
For instance, a fleet operator managing chargers for multiple companies would benefit from OCPI’s unified session model. It allows them to track usage and billing centrally without needing to configure each charge point individually. OCPP 2.0.1 would require more manual setup and coordination between tenants and charge point vendors.
Related Reading
For more on related topics, see: Chargepoint Alliance – EV Charging Interoperability.
Further reading: EV Charging Software Features | Tecell CMS (UnityCharge) – OCPP, Billing, Mobile
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