The Open Charge Point Protocol (OCPP) is an application protocol for communication between electric vehicle (EV) charging stations and a central management system, also known as a charging station network. It is comparable to communication between cell phones and cell phone networks. The original version of OCPP was developed by Franc Buve and Joury de Reuver.
OCPP is used by a large number of vendors of EV charging stations and central management systems globally. As of January 2025, OCPP had been downloaded in 137 countries. The latest version, OCPP 2.1, was released in January 2025. This version includes features such as Distributed Energy Resource (DER) control and Vehicle-to-Grid (V2G) capabilities, and is backwards compatible with OCPP 2.0.1.
In late 2024, OCPP 2.0.1 Edition 3 was accepted by the International Electrotechnical Commission (IEC) as IEC standard 68354. OCPP is developed and maintained by the Open Charge Alliance (OCA), a non-profit foundation under Dutch law, headquartered in Arnhem, the Netherlands. It is an open source standard and can be downloaded for free. To contribute to OCPP's development, one must become a member of the Open Charge Alliance.