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Key Concepts

The Open Charge Point protocol (OCPP) 

  • The OCPP is an open-source communication standard for EV charging stations and network software companies.

  • Established in 2009 by the Open Charge Alliance, OCPP is designed to be a free, open- source, and easy to implement protocol that ensures all participants are speaking the same language.

  • Any EV charging station that is OCPP-compliant can be configured to run any similarly OCPP-compliant software

  • It is the global benchmark for interoperability throughout the EV charging industry

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Why it is important: OCPP-compliant hardware prevents price gouging by service providers who sell proprietary equipment - equipment that cannot be serviced by other service/billing providers, ensuring fair and transparent practices.

OCPP
EV Charging stations

Why a Hardware Agnostic Solution is the best approach.

This approach does not tie the building/site to any particular solution (brand/type of hardware and software). 

Benefits:

  • It allows any smart charger to be integrated onto the building’s existing infrastructure, providing residents with more options or a ‘BYO-charger’ approach, whilst remaining optimally and transparently managed.

  • It allows building management to switch service providers without having to replace the already installed hardware

  • It avoids unnecessary re-investment. 

  • The site remains future-proof, avoiding potential compatibility issues with newer hardware that may not be supported by older systems - in other words improving site flexibility and scalability.

Dynamic Load Balancing
 

The Building may:

  • Not have enough excess power to allow all chargers to run at full capacity at any given point of time, and/or

  • May want to throttle the chargers so that the switchboard capacity is not exceeded.

 

Even though chargers may be OCPP compliant, the Load Balancing or Energy Management System provided by the manufacturer may be:

  • Proprietary, whereby requiring all chargers to be of the same brand, hence locking-in the site to a specific brand which reduces immediate and long-term flexibility, and increases supplier risk;

  • Only capable of working on limited number of chargers, for example 30 charging points.

 

Solution: KarChargers provides a cloud-based hardware agnostic solution, allowing scalability (theoretically allowing unlimited number of chargers) and different brand of smart-chargers to be integrated.

 

How is this done: The power consumed by each charger is monitored online, allowing the charging rate to scale up or down based on available capacity.

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30+ YEARS EXPERIENCE

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