
In October 2026 our thermal drone inspection of a commercial roof in Gawler found built-up dirt had overheated cells across the array, leaving panels burnt and damaged. The whole system needed replacing, damage that regular cleaning and checks would have caught early.
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In October 2026 NG Elec flew a DJI Matrice 4T thermal drone over a commercial solar array in Gawler. The thermal images showed hot spots where built-up dirt from poor maintenance had overheated the cells, and panels were burnt and damaged. The full system needed replacing. Regular cleaning and inspections would likely have caught the problem much earlier.
The system
| Inspection | Thermal drone, DJI Matrice 4T |
|---|---|
| Pilot | CASA-licensed |
| Site | Commercial roof |
| Finding | Overheated, burnt cells from built-up dirt |
| Outcome | Full system replacement required |
| Date | October 2026 |
The job
The array on this Gawler commercial roof hadn't been looked after. Dirt had built up on the panels over time, and from the ground nothing obvious looked wrong.
Dirt that sits on panels can stop parts of a cell from working. The cell then heats up, and over time that heat can burn and damage the panel.
We flew our DJI Matrice 4T thermal drone over the array with a CASA-licensed pilot. The thermal camera shows heat, so problem cells stand out as bright hot spots.
The images showed hot spots across the array, including along panel edges where dirt had collected. Up close, panels were burnt and damaged.
Photos


FAQ
Yes. Built-up dirt can shade parts of a cell, which then overheats. Left long enough, as on this Gawler roof, cells can burn and panels can be damaged beyond repair.
Thermal inspections are normally $750. During hail season we also offer a home hail check for $149.
It shows heat. Faulty or overheating cells show up as hot spots, so we can find problems across a whole array that you can't see with the naked eye.
It depends on the site and how dusty it is, but regular cleaning and checks are what prevent this kind of damage. We can recommend a schedule after an inspection. See our solar maintenance and repairs service.
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Find hot spots before they turn into burnt panels. Tell us about your system and we'll be in touch to book it in.
A local consultant calls within one business day to ask a few questions.
We look at your roof, bills and switchboard, using satellite and drone imagery where it helps.
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Call the team on 0425 322 552, Monday to Friday, 8am to 5pm.