Green Charger – Autonomous and Eco-Friendly Electric Vehicle Charging Station

Context & Challenges

In response to the challenges of the energy transition, a major automotive manufacturer wanted to experiment with an autonomous and eco-friendly electric vehicle charging station capable of being powered by solar energy while reusing end-of-life automotive batteries in a second-life application.

Project Challenges

Initial discussions quickly highlighted several key challenges:

• Ensuring continuous coordination between solar panels, power converters, energy storage systems, and charging outlets.
• Managing variable energy production while maintaining a stable and reliable user experience.
• Leveraging second-life batteries, each with its own unique performance characteristics.
• Enabling real-time data exchange through a unified CAN and Modbus architecture.

In other words:

he project required a conductor capable of orchestrating and bringing coherence to this entire energy ecosystem.

Our Contribution

Dunasys designed and developed the charging station’s central communication gateway: the component that monitors, analyzes, decides, and synchronizes the entire system.

The gateway supervises and coordinates all modules, including:

• Inverters, power converters, and charging outlets,
• Thermal and energy management systems to ensure performance and safety,
• An intuitive Human-Machine Interface (HMI) for end users,
• CAN and Modbus compatibility, ensuring complete interoperability between all subsystems.

Results & Added Value

• An intelligent, eco-friendly, and fully autonomous charging station powered by solar energy.
• Seamless integration between hardware and software, enabled by Dunasys’ embedded systems expertise.
• A direct contribution to the circular economy through the reuse of automotive batteries beyond their first life cycle.

Conclusion

The Green Charger gateway embodies the vision of a more responsible energy future.

At the heart of this innovation, Dunasys contributed what defines its expertise: embedded engineering capabilities that transform an ambitious concept into a complete, robust, and intelligent system.

A clear demonstration that technology can genuinely support a more sustainable energy model.