OCPP (Open Charge Point Protocol)
Global open application standard for communication between EV charging stations and a central management system (CSMS).
Technical Details
Current versions: 1.6J (JSON over WebSocket) and 2.0.1 (Enhanced security, ISO 15118 support). Handles authorization, metering, firmware updates, and smart charging profiles.
Fleet Applications
prevents vendor lock-in, allowing fleets to mix and match charger hardware while using a single software dashboard for management.
Related Terms
Smart Charging
Intelligent management of EV charging sessions to optimize energy consumption based on grid constraints, energy prices, and vehicle schedule requirements.
OCPP 2.0.1
Version 2.0.1 of the Open Charge Point Protocol (OCPP) that standardizes communication between charging stations and a Charging Station Management System (CSMS).
CSMS (Charging Station Management System)
Software platform used to monitor, manage, and optimize a network of EV charging stations.
OCPI 2.2.1 (Open Charge Point Interface)
Roaming interoperability protocol for exchanging charging network data (locations, tariffs, tokens, sessions, commands, and charge detail records) between CPOs, eMSPs, hubs, and multi-role platforms.
ISO 15118 (Plug & Charge)
Family of standards for high-level communication between an electric vehicle (EV) and a charging station (EVSE), enabling certificate-based "Plug & Charge" and advanced charging control (including bidirectional charging in newer editions).
AFIR (Alternative Fuels Infrastructure Regulation)
EU regulation that sets binding targets for the rollout and accessibility of alternative fuels infrastructure, including EV charging.
Eichrecht (German Metering & Calibration Law)
German legal framework that requires accurate, tamper-proof measurement and billing of electricity for EV charging.