This month-wise, priority-based punch point rectification plan for a new Waaree-commissioned solar plant focuses on critical safety, structural, and electrical integrity in the first three months post-commissioning

 Shri SKB Valli sir fully enforced prioritize the punch points as urgency to enhance production with safe manner.

This month-wise, priority-based punch point rectification plan for a new Waaree-commissioned solar plant focuses on critical safety, structural, and electrical integrity in the first three months post-commissioning.

Phase 1: Immediate/Month 1 (High Priority - Safety & Generation)

These items prevent immediate breakdowns, safety hazards, and significant generation loss. 

Earth Pit & Earthing (Highest Priority):

Verify all HT/LT panels, SACU, inverter enclosures, and MMS structures are connected to the earth grid.

Measure earth resistance, ensuring it is <1 Ohm for panels and <5 Ohms for fencing/structures.

Rectify missing/loose connections on earth strips.

MMS Structure Rectification:

Tighten all bolted connections to specified torque (especially if loose after initial wind loads).

Correct misalignment of modules to prevent premature shading.

Treat any rust or damage to the galvanized coating.

HT & LT Panel Rectification:

Check for loose terminations in HT/LT panels.

Verify correct operation of breakers (ACB/MCCB).

Check for proper cable glanding and sealing to prevent moisture/dust ingress.

SACu (String Array Combiner Unit):

Verify all input strings are properly terminated and tightened.

Check for faulty SPD (Surge Protection Device) indicating high voltage issues.

SCADA:

Ensure all inverters, trackers (if any), and weather stations are communicating with the SCADA system.

Verify that data being shown (voltage, current, power) matches field readings.

Phase 2: Month 2 (Medium Priority - Reliability & Efficiency)

These items focus on long-term performance and preventing future operational failures. 

ACDB & Cabling:

Inspect ACDB for proper tightening of busbars.

Check that cables are neatly routed, supported, and labeled (especially in cable trenches).

Rectify any cable insulation damage or improper glanding.

Battery System (if applicable):

Ensure proper ventilation in the battery room.

Check for proper terminal connections and voltage levels.

MMS Structure (Leveling):

Re-check row-to-row spacing and table alignment for proper tracking or tilt alignment. 

Solar Energy Corporation of India (SECI)

Solar Energy Corporation of India (SECI)

Phase 3: Month 3 (Lower Priority - Maintenance & Final Sign-off)

These items are for final finishing, documentation, and routine maintenance setups.

Site Cleaning:

Remove all installation debris, waste cables, and tools from the site.

Ensure proper drainage around foundation posts to prevent future waterlogging.

Labeling and Documentation:

Verify that all labels (Danger, Danger 415V, Inverter ID, String number) are in place.

Complete the final "As-Built" drawings update.

Routine Maintenance Planning:

Setup the first official cleaning cycle for PV modules. 

Typical "Punch Points" to Look For (Waaree Projects)

Based on post-commissioning reports, the following are common issues:

Missing Earthing: Particularly for MMS legs, causing safety risks.

Inverter/ACDB Clearance: Too little space for maintenance.

Loose Fasteners: Improper torque on module mounting bolts.

Galvanization Damage: Rust on structures due to handling.

Cable Management: Improper, unsupported cables trailing in trenches.