Bifacial solar panels require maintenance very similar to traditional solar panels, but with special attention to both sides of the panels as they collect sunlight on the front and rear surfaces. The key maintenance tasks include:
Cleaning
- Frequency: Clean at least twice a year or more often in dusty, polluted, or high-debris areas to maintain optimal efficiency. This includes removing dust, dirt, bird droppings, and other debris from both the front and back sides of the panels.
- Method: Use soft cloths or brushes and non-abrasive, gentle cleaning solutions. Avoid harsh chemicals or abrasive materials that could damage the panel surfaces or coatings.
- Timing: Clean during cooler parts of the day, such as early morning or late afternoon, to prevent rapid evaporation or spotting.
- Regular cleaning prevents power loss due to dirt buildup, which can significantly reduce energy capture on both sides of bifacial panels.
Inspection and Physical Maintenance
- Regular Inspection: Check for physical damage such as cracks, loose mounting hardware, corrosion, or wiring issues.
- Mounting and Alignment: Ensure that the mounting system remains secure and that panels are properly aligned to maximize sunlight capture from both sides.
- Shading: Monitor for any new shade sources from nearby trees or structures that could obstruct light and reduce output, as bifacial panels rely heavily on reflected light from their surroundings.
System Testing and Monitoring
- After installation, perform system checks to verify electrical connections, voltage output, and proper energy capture on both sides.
- Install a real-time monitoring system to detect irregularities in energy production early. This helps identify shading, wiring faults, or performance drops promptly.
Additional Considerations
- Inverter components typically last 5–15 years and may require replacement, so budgeting for these costs is recommended.
- Regular professional inspections at least annually help maintain warranty compliance and system longevity.
Summary Table of Bifacial Solar Panel Maintenance
| Maintenance Task | Details | Frequency |
|---|---|---|
| Cleaning | Clean both sides with soft cloth/brush & mild cleaners to remove dirt and debris | Twice a year or as needed |
| Inspection | Check for physical damage, loose mounts, corrosion, shading issues | Regularly, at least annually |
| System Testing | Verify electrical connections, voltage, energy output, real-time monitoring | Post-installation and ongoing |
| Inverter Replacement | Plan for inverter lifespan and replacement costs | Every 5–15 years |
By following these maintenance guidelines, bifacial solar panels will maintain high efficiency, maximize energy generation from both surfaces, and extend their operational lifespan effectively.
Original article by NenPower, If reposted, please credit the source: https://nenpower.com/blog/what-maintenance-is-required-for-bifacial-solar-panels/
