Open Charge Point Protocol (OCPP)

Glossary

What is Open Charge Point Protocol for EV Chargers?

Open Charge Point Protocol (OCPP) is an application protocol for communication between Electric vehicle (EV) charging stations and a central management system.

What is Open Charge Point Protocol (OCPP) for EV Chargers?

The Open Charge Point Protocol (OCPP) is a communication protocol used in electric vehicle (EV) charging infrastructure to facilitate interoperability between different charging stations and central management systems (CMS). OCPP allows charging stations, also known as charge points, to communicate with a central management system, enabling functionalities such as starting and stopping charging sessions, retrieving charging data, updating firmware, and managing user authentication.

The protocol is open, meaning it is not proprietary and can be freely implemented by manufacturers and developers. This openness encourages innovation and competition in the EV charging market while ensuring that different charging station brands can seamlessly communicate with each other and central management systems, regardless of the manufacturer. By standardizing communication between various components of EV charging infrastructure, OCPP promotes compatibility and interoperability, which is crucial for the widespread adoption and efficient operation of EV charging networks.

Why is OCPP needed?

OCPP, or Open Charge Point Protocol, is needed because it is crucial in shaping the EV charging infrastructure and facilitating the electric vehicle industry's interoperability, scalability, innovation, and regulatory compliance. Here's why OCPP is so important in the EV charging:

  1. Interoperability: OCPP provides a common language for communication between charging stations and central management systems (CMS). This means that different brands and models of charging stations can communicate effectively with various network operators' backend systems. Without a standard protocol like OCPP, each manufacturer might use proprietary communication protocols, making it difficult for charging stations from different vendors to work together seamlessly.
  2. Scalability: As the electric vehicle market grows, interoperability becomes increasingly important. OCPP enables the scalability of EV charging infrastructure by allowing new charging stations to be easily integrated into existing networks. This flexibility encourages the expansion of charging infrastructure, which is crucial for supporting the widespread adoption of electric vehicles.
  3. Innovation: OCPP fosters innovation in developing EV charging solutions by establishing a common standard. Developers can focus on creating innovative features and services without being constrained by proprietary communication protocols. This competition and innovation ultimately benefit EV drivers by improving the reliability, accessibility, and functionality of charging stations.
  4. Regulatory Compliance: In many regions, regulations, and standards require open protocols like OCPP to ensure fair competition, interoperability, and data accessibility in the EV charging market. Compliance with these regulations often necessitates the adoption of standardized protocols like OCPP by charging station manufacturers and network operators.

Read more about OCPP and how to use it for EV Charging at.