EV Charging Interoperability Protocols
Open protocols that govern communication between EV charging stations, charging management systems, and roaming hubs. OCPP is the charger-to-back-office protocol from the Open Charge Alliance. OCPI is the back-office-to-back-office roaming protocol. ISO 15118 handles vehicle-to-charger plug-and-charge. These specifications are the API contract for the EV charging network.