Parallel Operation of Two 6 kW Easun Power Inverters with a 20 kWh Lithium Battery in Spain

With the growing adoption of distributed energy storage in Spain, industrial and commercial users are increasingly seeking reliable and efficient solutions to manage their energy. Easun Power provided a tailored system using two 6 kW inverters in parallel with a 20 kWh lithium battery, delivering stable performance and intelligent energy management.

Project Background

The project, located in Spain, aimed to:

  • Optimize energy self-consumption and reduce electricity costs

  • Ensure seamless operation between multiple inverters and the battery system

  • Maintain uninterrupted power supply for critical loads

The client required a medium-capacity storage system capable of efficiently managing energy from renewable sources and the grid.

Solution

Easun Power implemented a parallel inverter setup with two 6 kW units to ensure smooth operation:

  1. Parallel Operation & Seamless Communication
    The two inverters operate in parallel, sharing load and communicating seamlessly with the 20 kWh battery for optimal performance.

  2. High Compatibility
    The system integrates smoothly with the existing lithium battery, requiring no additional modifications to the battery management system.

  3. Smart Monitoring
    Easun Power’s monitoring platform provides real-time data for each inverter and the battery, enabling energy optimization and proactive maintenance.

  4. Safety and Reliability
    Built-in protections against overvoltage, overcurrent, short circuits, and automatic fault response ensure stable and safe operation.

Project Outcomes

Since commissioning:

  • The two 6 kW inverters work perfectly in parallel, communicating without interruption

  • Energy self-consumption has improved, reducing overall electricity costs

  • Critical loads maintain uninterrupted power, improving operational reliability

Conclusion

This Spanish project demonstrates the effectiveness of Easun Power’s parallel inverter technology in medium-capacity storage systems. With two 6 kW inverters working in parallel with a 20 kWh battery, the client enjoys a reliable, efficient, and intelligent energy solution.