Understanding Open Charge Point Protocol in OCPP Software

Understanding Open Charge Point Protocol in OCPP Software

OCPP enables communication of EV charging station networks to ensure a smooth charging experience. Learn more about OCPP in detail.

Imagine using multiple apps from different EV charging companies to find one charging station near you. Searching for one EV charging station for the time being in 4-5 different apps can be a little frustrating. That’s when OCPP software comes into play. Imagine the EV charging station networks talking to each other. When they can talk to each other, you can easily find a charging station, start and stop charging, and even pay for the electricity used—all without needing different apps or memberships for each station. 

What is OCPP software?

OCPP(Open Charge Point Protocol) is a communication protocol standard that enables Interoperability, the exchange of real-time data between systems that speak the same language. It instantly interprets incoming data and presents it as received while preserving its original context. 

This means it's easier to set up charging stations, it's simple for EV drivers to charge their cars wherever they are, and it helps companies develop new ways to improve charging technology. Standardizing with OCPP simplifies setting up charging stations, improves user experience with seamless charging sessions, and improves innovation in EV technology. OCPP supports reliable and scalable management of global charging networks, which is important for expanding the EV market.

Key Features of OCPP Software

OCPP Versions Table
Version Description
OCPP 1.2 (2012) First Public Release. Basic functionalities for communication between charging stations and CSMS.
OCPP 1.5 (2015) Built on 1.2. Support for different authorization methods and improved diagnostics.
OCPP 1.6 (2018) Industry Leader. Security Focus, Smart Charging Support, Additional Functionalities.
OCPP 2.0 (2018) Successor to 1.6. V2G Communication, Improved Transaction Handling, Display and Messaging Support.
OCPP 2.0.1 (2020) Minor Update to OCPP 2.0. Focus on Stability.

Depending on your business requirements, you can choose the most suitable version of OCPP. Be sure to invest in the right one, as the OCPP-paid software is expensive.

So, we've seen how OCPP has grown, but what about its downsides? Let's take a closer look at the disadvantages of using OCPP software.

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Disadvantages of OCPP software

Despite all the advantages that the OCPP software provides for its consumers and companies that make great use of this, there are several disadvantages of OCPP software. Let’s find out the cons of OCPP software.

  1. Complexity: Especially for smaller operators or new entrants, implementing OCPP can be complicated and needs technical expertise. Businesses need more investment and technical expertise to use this complex software.
  1. Compatibility Problems: Even after OCPP has been standardized, there may still be problems with compatibility between various OCPP versions and certain hardware or software setups. 
  1. Cost: Although some OCPP software is free, the premium/subscription software with several features is paid. OCPP-compliant systems may be expensive to set up and maintain over time. These costs may include those for hardware, software, and training.
  1. Security Concerns: Strong precautions must be taken to manage cybersecurity threats, such as safeguarding user data and preventing illegal access to charging stations. 
  1. Dependency on Internet connectivity: OCPP depends on dependable internet connectivity to facilitate remote management and communication, which presents a challenge in places with spotty network coverage.
  1. Integration Difficulties: Integrating OCPP with current backend systems and IT infrastructure may require specialized development or adjustments. Pulse Energy’s integration support makes this process smoother.

With the pros and cons of OCPP software in mind, how does it stack up against EV API software? Let's compare the two.

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OCPP Software VS EV API Software

OCPP (Open Charge Point Protocol) and EV API (Electric Vehicle Application Programming Interface) serve different purposes in the context of electric vehicle (EV) charging:

  1. Purpose: OCPP Software vs EV APIs

OCPP: Ocpp software specifies how it communicates with central management systems. It focuses on the technological communication and compatibility between software (management systems) and hardware (chargers).

EV API: Application programming interfaces (APIs) that enable communication between EV-related services, apps, and data are called EV APIs. It usually includes APIs for payment processors, reservation platforms, mobile apps, and more, improving user experience and facilitating interaction with other services.

  1. Focus: OCPP Software vs EV APIs

OCPP: Focuses on the communication protocols and standards necessary for managing and operating EV charging infrastructure efficiently. It ensures that chargers from different manufacturers can communicate effectively with backend systems.

EV API: Focuses on providing interfaces and endpoints that developers can use to build applications and services around EVs. This includes functionalities like locating charging stations, checking availability, initiating charging sessions, and handling payments.

  1. Implementation: OCPP Software vs EV APIs

OCPP: Implemented at the level of EV charging hardware and management software to ensure interoperability and smooth operation of charging stations. 

EV API: Implemented in applications and services that interact with EV users, enabling them to access and utilize various EV-related functionalities and services. 

  1. Integration: OCPP Software vs EV APIs

OCPP: Coordinates data collection, transaction processing, station management, and monitoring by integrating with the backend systems of charging network operators and service providers.

EV API: Offers a smooth experience for finding, accessing, and using charging infrastructure by integrating with web platforms, mobile apps, and other services that EV users directly interact with.

After differentiating the OCPP software and EV API software, it’s crucial to understand how these differences translate into real-world applications. Let's wrap it all up.


In conclusion, while OCPP ensures standardized communication and operation of EV charging stations, EV API expands the functionality and user accessibility of electric vehicles through diverse application interfaces. Together, they form integral parts of the infrastructure supporting the growth and innovation in the EV market worldwide.

Get In Touch to learn more about EV fleet management, API software, and charging station franchises.

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