FAQ 5 min read Apr 8, 2026

Solar Panel Inspection: What Technicians Actually Check

Wondering what a professional solar inspection involves? Here's a transparent breakdown of every step our certified technicians perform on your array.

The Short Answer

A thorough solar inspection goes far beyond a visual check. Our NABCEP-certified technicians use a combination of electrical testing, thermal imaging, and data analysis to assess the health of every component in your system.

Visual Inspection

Panel glass for microcracks, delamination, discolouration, or hot spots
Frame integrity and mounting hardware
Junction boxes and conduit runs
MC4 connectors for corrosion, water ingress, or improper mating

Electrical Testing

IV Curve Tracing — compares each string's actual current-voltage curve against its expected performance to pinpoint underperforming panels
Insulation Resistance (Megger) Test — measures cable insulation integrity to detect degradation before it causes a ground fault
Open-circuit voltage and short-circuit current checks per string

Inverter & Monitoring Review

Error log analysis for historic faults
Production data review — actual vs. predicted output
Firmware version check

What You Receive

After the inspection you receive a written report with:

A health score for each string and the overall array
Annotated photos of any defects found
Prioritised recommendations with estimated costs
Comparison of current vs. expected annual output

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