Solar Panel Maintenance Tips for High Performance

Monthly & Seasonal Checklist

• Dry dusting every 2-3 weeks; wet cleaning monthly during summer.
• Inspect cables, MC4 connectors, and junction boxes for heat marks.
• Keep trees trimmed to avoid new shading.
• Check inverter error logs and WiFi connectivity.
• After monsoon, confirm earthing and SPD health.
• Document generation numbers to track degradation.

Performance Monitoring

• Compare daily kWh vs. design estimate; flag drops >5%.
• Use the inverter app alerts for string or MPPT issues.
• Keep module tilt and orientation unchanged after cleaning.

When to Call a Technician

• Sudden 10%+ drop in generation for 3 consecutive days.
• Inverter alarms, arc fault alerts, or frequent tripping.
• Hotspots visible via IR camera or discoloration on modules.
• Lightning season earthing test (megger) once a year.

FAQ

• Cleaning frequency? Dust every 2–3 weeks; wet clean monthly in summer.
• Inverter care? Keep ventilated, check logs, inspect connectors for heat marks, update firmware yearly.
• When to call support? 10%+ sustained drop, alarms, hotspots, or before monsoon to test earthing.