PREVENTIVE MAINTENANCE
Built to last: Preventive mechanical inspections for reliable PV operation
Preventive maintenance through mechanical inspections in PV (photovoltaic) parks is a critical part of ensuring long-term reliability, safety, and maximum energy yield. Unlike corrective maintenance (which reacts to failures), preventive maintenance systematically checks and services equipment before issues occur.
1. Mounting Structures
• Check for corrosion, rust, and paint deterioration, especially in coastal or humid environments.
• Tighten bolts, nuts, and fasteners to ensure structural stability against wind and vibration.
• Inspect for alignment or deformation that could affect panel tilt and energy yield.
2. PV Module Support & Frames
• Inspect module frames for cracks, warping, or mechanical stress.
• Check clamps and brackets holding the modules for looseness or displacement.
• Ensure no shading caused by displacement or vegetation growth affecting alignment.
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3. Tracking Systems (if applicable)
• Inspect bearings, gears, and motors for wear.
• Lubricate moving parts per manufacturer’s schedule.
• Verify tracking alignment and synchronization across rows.
4. Site & Safety Elements
• Inspect fences, gates, and access roads for damage or obstruction.
• Check for vegetation growth that might obstruct modules or damage cables.
• Ensure drainage systems around the PV park are clear to prevent flooding or erosion around foundations.
5. Mechanical Integrity of Ancillary Equipment
• Inspect cable trays, conduits, and junction boxes for structural integrity.
• Verify inverter housing and support structures for damage, loose screws, or corrosion.
• Check earthing/grounding connections for mechanical soundness.
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