Practical maintenance for rooftop solar
Residential solar systems are relatively low maintenance but do require periodic attention to sustain peak performance. Regular care helps prevent loss of production and catches issues early.
Routine maintenance tasks:
- Visual inspections: Check for debris, visible damage, loose mounts, or animal nests. Do this a few times per year.
- Cleaning: In many climates, rain keeps panels reasonably clean. In dusty, pollen-heavy, or arid regions, occasional washing with water or a soft brush may be needed.
- Monitoring: Use system monitoring to track daily output. Unexpected drops can indicate problems with inverters, wiring, or shading.
- Inverter checks: Ensure inverter status lights look normal and review any fault codes.
When to call a professional
- Electrical issues, damaged wiring, or persistent performance drops
- Significant physical damage after storms or hail
- Roof repairs that require panel removal and reinstallation
Maintenance tips
- Avoid walking on panels unless trained and equipped; use a professional for repairs or complex cleaning.
- Schedule professional inspections every few years to check electrical connections and mounting integrity.
- Keep trees trimmed to minimize shade and falling debris.
With modest ongoing attention and occasional professional service, a residential solar array can deliver reliable performance for decades.