OCPP Explained: The Open Standard Powering EV Charging Networks

2024 - 18.12 - OCPP, Technology

Written by: Vaios Archontakis Ueland

OCPP (Open Charge Point Protocol) versions for EV charging define the communication standard that enables EV chargers and central management systems to exchange data reliably. OCPP ensures interoperability between different manufacturers, allowing networks to scale without locking operators into a single vendor.

For CPOs, installers and resellers, OCPP standards for EV charging networks provide a common language that simplifies integration, remote management and data sharing across the entire EV ecosystem.

The various versions of OCPP in the market can be tricky to navigate

OCPP Versions – What You Need To Know

The Open Charge Point Protocol has evolved to meet the growing complexity of EV infrastructure. The most relevant and widely implemented versions today are OCPP 1.6, OCPP 2.0.1, and the newest release, OCPP 2.1.

OCPP 1.6 – The Reliable Standard

OCPP 1.6 remains the most commonly deployed version globally. It supports essential features such as remote monitoring, smart charging, and firmware updates, making it the backbone of most commercial charging setups today.

Nearly all major Charge Point Management Systems (CPMS), including Monta, Spirii, Virta, AMPECO, Reev, ChargePanel, Vaylens, and ChargeIT, support OCPP 1.6. This broad compatibility makes it a dependable foundation for installers and CPOs looking for proven interoperability.

2025 – 14.03

– Company News

Spirii saw the future and plugged in.

OCPP 2.0.1 – Enhanced Security and Control

OCPP 2.0.1, released in 2020, introduced major improvements over 1.6. It brought stronger cybersecurity, event notification, and better device management which are features that are particularly useful for large-scale networks.

It also added support for smart energy management, firmware version tracking, and more detailed error diagnostics. These capabilities make OCPP 2.0.1 the natural choice for operators seeking advanced functionality while maintaining compatibility with existing 1.6 infrastructure.

Many CPMS platforms, including AMPECO, have confirmed support for OCPP 2.0.1, enabling smoother migration for growing networks.

OCPP 2.1 – Built for the Future of EV Charging

The latest version, OCPP 2.1, was released by the Open Charge Alliance in April 2023. It builds directly on 2.0.1 and introduces full support for ISO 15118-20, the standard that enables Plug & Charge and Vehicle-to-Grid (V2G) communication.

This makes OCPP 2.1 the first truly future-proof protocol, capable of handling bidirectional charging, energy trading, and dynamic grid interaction. It also improves session handling, device authorisation, and cybersecurity compliance.

In short, OCPP 2.1 bridges today’s EV charging with tomorrow’s smart-energy ecosystem.

(Source: Open Charge Alliance, April 2023)

Choosing the Right OCPP Version for Your EV Charging Setup

For most installations today, OCPP 1.6 remains reliable and widely supported. However, new deployments aiming for long-term scalability and ISO 15118-readiness should prioritise OCPP 2.0.1 or 2.1.

When choosing hardware, check which OCPP versions are certified. amina C is designed for OCPP 2.0.1, with forward-compatibility planned for OCPP 2.1, ensuring your charging network evolves with the industry.

Future-proof security plays a big role in OCPP

How Does OCPP Work in EV Charging?

OCPP defines how data flows between the EV charger and a central management system. The charger sends live information — such as charging status, user ID, energy usage, and error codes — to the CPMS, which then analyses and controls operations remotely.

Through this link, operators can:

Monitor charger status in real time
Push firmware updates over-the-air
Diagnose faults and restart chargers remotely
Manage energy loads dynamically

This communication backbone keeps networks stable, cost-efficient, and easy to maintain.

Key Features of OCPP

Remote firmware updates and diagnostics
Real-time status monitoring
Smart charging and dynamic load balancing
User authentication (RFID, app, or Plug & Charge)
Secure data encryption and logging
Event-driven communication for better uptime

Why ‘API vs OCPP’ matters for EV charging networks

Why OCPP is Important

OCPP benefits every part of the EV charging chain:

Installers gain easier setup and broader compatibility.
Resellers protect hardware investment through open standards.
CPOs and CPMS providers manage multi-brand charger networks under one platform.
Energy retailers integrate chargers into wider demand-response systems.

It effectively keeps the ecosystem open and avoids vendor lock-in.

The Benefits of OCPP for Installers

OCPP-compliant chargers simplify installation, configuration, and maintenance. Installers can connect hardware to any compatible management platform, saving time on setup and ensuring the system can evolve without replacing physical chargers.

Future-Proofing EV Chargers with OCPP 2.1

OCPP 2.1 enables full ISO 15118-20 integration, unlocking Plug & Charge and Vehicle-to-Everything (V2X)functionality. This future-proofs charging stations as energy systems become more connected and vehicles start participating in grid balancing.

By adopting OCPP 2.1-ready hardware, resellers and CPOs ensure long-term value and compliance with upcoming European regulations for smart charging and cybersecurity.

2025 – 27.03

– Partner Stories

Live in 20 seconds!

OCPP and the Role of CPMS

Modern CPMS platforms act as the operational heart of charging networks.

Systems such as Monta, Spirii, AMPECO, Reev, and Virta are compatible with OCPP 1.6 today, while some — including AMPECO — have already implemented OCPP 2.0.1 integration and announced plans for OCPP 2.1 support as certification progresses.

These systems allow operators to:

Manage chargers from multiple manufacturers
Analyse charging data and revenue
Set pricing, access, and energy limits
Integrate with payment and billing APIs

Cost-Saving Potential with OCPP-Enabled Chargers

OCPP reduces operational costs by enabling remote management, predictive maintenance, and smarter load control.

For example:

Remote updates remove the need for physical site visits.
Live monitoring minimises downtime.
Dynamic load balancing optimises energy costs.

Together, these reduce the total cost of ownership while increasing network efficiency.

Are There Any Limitations with OCPP?

While OCPP provides flexibility, implementation quality can vary. Compatibility is guaranteed only when both charger and management platform are certified under the same version.

To ensure seamless operation, always choose OCPP-certified hardware and confirm that your CPMS supports your target version (1.6, 2.0.1 or 2.1).

Integration partners with amina chargers

Frequently Asked Questions about OCPP in EV Charging

How does OCPP work in an EV charging setup?

OCPP defines how a charger communicates with its management system, enabling remote control, data monitoring, and updates.

Why is OCPP important for EV chargers?

It ensures interoperability and scalability, allowing different hardware and software providers to work together.

What are the benefits of OCPP for installers?

It simplifies setup, shortens installation time, and allows flexibility across CPMS providers.

What is new in OCPP 2.1?

OCPP 2.1 adds ISO 15118-20 support for Plug & Charge and V2G, future-proofing EV charging networks.

Which CPMS platforms support OCPP 1.6 or higher?

Platforms such as Monta, Spirii, Virta, AMPECO, Reev, ChargePanel, Vaylens, and ChargeIT support OCPP 1.6. AMPECO publicly supports OCPP 2.0.1 and is working towards OCPP 2.1 certification.