REPAIRS & TROUBLESHOOTING
Keeping your PV park running - Expert repairs, Smart diagnostics
In photovoltaic (PV) parks, repairs and troubleshooting are crucial for maintaining consistent energy production, protecting assets, and ensuring compliance with safety and regulatory standards.
OUR COMMON REPAIRS IN PV PARKS
1. Module-Level Repairs
• Cracked or broken panels due to hail, wind, or impact → replacement is usually required.
• Hot spots caused by defective cells or shading → may need module replacement.
• Delamination or discoloration of modules → indicates aging or manufacturing defects.
2. Electrical System Repairs
• Inverter faults (most common source of downtime) → component replacement, firmware updates, or full inverter swap.
• String fuse failures → replacing blown fuses due to overcurrent.
• DC cabling issues such as insulation damage, loose connectors, or corrosion → repair or replace cables.
• AC side faults including breaker trips or transformer failures → inspection, rewiring, or equipment replacement.
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2. Structural & Balance of Plant
Mounting structures: corrosion, loose bolts, or mechanical damage need tightening, anti-rust treatment, or replacement.
Tracking systems (if installed): motor/gearbox replacement, alignment corrections, sensor calibration.
Grounding system: repair of broken earth connections or ground grid.
OUR TROUBLESHOOTING PROCESS
1. Monitoring & Diagnostics
Use SCADA systems and performance monitoring software to detect anomalies (e.g., sudden power drop in a string).
Compare real-time performance against expected generation (PR – Performance Ratio).
2. Visual & Thermal Inspection
Drones with infrared cameras to detect hot spots, string outages, or faulty modules.
Ground-level IV curve tracing to check for string mismatch or degraded modules.
3. Systematic Testing
Insulation resistance test on DC cables to locate ground faults.
Continuity tests to ensure grounding and bonding are intact.
Inverter error codes and manufacturer diagnostic tools.
4. Root Cause Analysis
Identify whether the issue is module-related, inverter-related, or grid-related.
Prevent recurring faults by documenting incidents and applying corrective actions.
OUR BEST PRACTICES
Preventive Maintenance reduces emergency repairs (cleaning panels, tightening connections, vegetation control).
Stock of spare parts (fuses, connectors, inverters, key modules) ensures faster repair turnaround.
Skilled technicians & safety compliance (lockout-tagout procedures, PPE, arc-flash protection) are critical.
Regular reporting on Mean Time To Repair (MTTR), downtime, and fault frequency helps optimize O&M strategy.
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