Pre-inspection planning:

• Select inspection windows with the right sunlight and temperature conditions for accurate thermal results.

• Review site layout, stringing, and inverter locations to plan efficient flight paths or walking routes.

Thermal scanning of modules:

• Use drone or handheld IR cameras to scan all rows of modules.

• Identify hot cells, hot strings, bypass diode issues, cracked glass, delamination, and potential PID (Potential Induced Degradation) symptoms.

Electrical component thermal checks:

• Thermally inspect combiner boxes, disconnects, inverters, terminations, and any exposed electrical connections.

• Look for abnormal temperature rises that point to loose lugs, overloaded conductors, or failing components.

Data analysis and grading:

• Classify anomalies by severity and likely root cause.

• Link thermal anomalies to locations: row, string, combiner, inverter, so the owner or service crew can find them fast.

Reporting and recommendations:

• Provide a written report with thermal images, visible images, location references, and a prioritized punch list.

• Include recommendations: replace vs. monitor, warranty follow-up items, and safety-related issues that require immediate attention.