OCPP EV Charger Guide 2026: Explore OCPP Protocol

May 21,2026 Blog

What Is OCPP in EV Charging?

An OCPP EV Charger means the EV charger that support OCPP protocol. “OCPP” stands for Open Charge Point Protocol. OCPP like a common languge between EV chargers and CSMS, it standardizes the interaction processes and data formats, enabling EV charger to communicate with operation platforms from different vendors.

OCPP ev charger work diagram

How does OCPP work

OCPP is a bidirectional communication protocol between Charging Station (CS) and Charging Staion Management System (CSMS), standardizing how operational data—such as device status, charging transactions, and maintenance control commands—is exchanged, as well as defining the interaction workflows and communication procedures between the two systems.

CS Sends to CSMSCSMS Sends to CS
Charger and connector statusStart or stop commands
Charging-session informationUser authorization results
Energy and meter dataPower and charging limits
Fault and diagnostic informationConfiguration and firmware commands

Charging Point Operators (CPOs) typically use a CSMS to monitor charging stations, manage users, process transactions, and perform remote operations. Platforms such as TrendPower EV charging management software can provide these centralized management functions for connected charging networks.

Current OCPP Versions 2026

VersionOverview
OCPP 1.6JStill widely deployed and suitable for standard transaction management, remote control and basic smart charging.
OCPP 2.0.1A newer version with enhanced security, Adoption is growing, but it is not yet as widely deployed as OCPP 1.6J.
OCPP 2.1The latest version, adding ISO 15118-20, but should currently be regarded as an emerging option rather than a widely deployed standard.

Not sure which OCPP version is right for your project? Read our OCPP version comparison guide.

What Should You Consider When Choosing an OCPP EV Charger?

Choosing an OCPP EV charger involves more than checking whether “OCPP” appears in the specification.

Confirm Whether the Project Needs OCPP

If the project does not have an independent backend system or only uses the manufacturer’s own management platform, OCPP is usually not essential. However, if you want to avoid being locked into a single platform, an OCPP-enabled EV charger is worth considering.

Check Whether the OCPP Version Is Compatible with Your CSMS

“Supports OCPP” does not necessarily mean that the charger is compatible with every CSMS. Before purchasing, provide the manufacturer with temporary access to your CSMS for testing. Actual connection testing is more effective than reviewing documentation alone in identifying compatibility issues.

Confirm the OCPP Testing and Certification Status

OCPP support is generally verified through manufacturer self-testing, third-party laboratory testing, or OCA certification. Manufacturer self-testing may be acceptable for some projects. If the project has specific compliance requirements, third-party testing or official OCA certification will be required.

XYDF engineer is testing ocpp ev charger function
XYDF engineer is testing the ocpp function

Explore OCPP EV Chargers for Your Project

XYDF provides OCPP-enabled AC and DC EV chargers for commercial charging networks, fleet depots and public charging projects. Tell us your required OCPP version and CSMS platform, and our team can arrange compatibility testing before bulk deployment.

OCPP FAQ

How Can I Confirm Whether an EV Charger Supports OCPP?

Check the specified OCPP version and request supporting test documents. Before bulk purchasing, ask the supplier to connect a sample charger to your CSMS for compatibility testing.

Can I mix OCPP 1.6 and 2.0.1 chargers on the same network?

Yes, but your CSMS must support both protocols simultaneously. Most modern management platforms handle mixed fleets. Plan your migration toward 2.0.1 or 2.1 for new installations — 1.6 is adequate for legacy hardware but increasingly excluded from public tenders referencing IEC 63584.

Is OCPP certification mandatory in Europe?

Not universally — but practically yes. The EU's Alternative Fuels Infrastructure Regulation (AFIR) mandates interoperability, and OCPP certification is the recognized proof. Germany's Eichrecht requires calibrated metering. France's AFIR decree explicitly references OCA-certified equipment. Without certification, you're locked out of most public funding and roaming agreements.

Can OCPP 1.6 be upgraded to a higher version?

OCPP 1.6 systems can be upgraded to newer versions like OCPP 2.0.1, but it depends on the charger hardware and firmware support.

Need help selecting OCPP-certified hardware for your European deployment? Contact our team for vendor-agnostic guidance tailored to your network size and regulatory requirements.

References

Standards and regional requirements may change. Please verify the latest requirements for your project location before purchasing equipment.

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