Real-World Case Study: How the Right Combiner Box Increased Output by 4%

Background

5MW solar rooftop system in Malaysia suffered inverter damage and string loss due to poor-quality combiner boxes.

Upgrades Implemented

• Replaced warped plastic boxes with aluminum IP66 models
• Installed SPD and thermal sensors
• Enabled real-time current monitoring

Results

System output improved by 4% per year. Inverter failures dropped to zero over 12 months.

Conclusion

High-quality combiner boxes have a direct impact on long-term energy yield and system stability. It’s a smart investment.