PRACTICAL GUIDE · SOLAR AND PV

How to plan a useful PV thermal inspection by drone

The value of a PV flight depends on more than the thermal camera. Installation data, operating conditions, systematic capture and a clear reporting format determine whether the maintenance team can act on the observations.

7 min read
Demonstration thermal and visual imagery of a photovoltaic installation
Demonstration visual

A thermal drone inspection can screen a large PV installation and organise modules or areas that deserve closer verification. It does not replace electrical measurements or diagnosis by qualified personnel. A reliable brief should describe the installation, the operational question and the output expected by the maintenance team.

1. Start with the maintenance question

State whether the goal is a commissioning check, periodic screening, investigation after a performance change, comparison after maintenance or documentation before a ground visit. One mission should have a clear decision it is intended to support.

Identify the people who will use the material. Asset managers, electrical contractors and service teams may need different numbering, location references and file formats.

2. Share the installation layout and operating context

Provide the exact location, approximate capacity or module count, mounting type, row or string layout and any available plan. Mention known shading, inactive sections, access restrictions and areas where people or vehicles are normally present.

Confirm who can provide access and operational information on the day. Thermal patterns are more useful when they can be related to the installation layout and its actual operating state.

3. Select conditions for comparable thermal data

Thermal capture depends on solar loading, clouds, wind, precipitation, reflections and whether the installation is operating. Rapidly changing conditions can make neighbouring images difficult to compare or make a mission unsuitable.

Give Aeronautiq a workable date range rather than a single rigid hour. The final capture window is confirmed after reviewing weather and site conditions, and may be moved when the expected data quality is poor.

4. Capture thermal and RGB context systematically

A repeatable flight pattern, overview imagery and visible-light context help relate a temperature pattern to a specific module or area. The flight plan must also account for obstacles, safe distances, airspace and access.

The operator records observations; the appropriate technical specialist determines their electrical significance. Avoid treating every visible temperature difference as a confirmed defect.

5. Agree an output the ground team can use

A useful package may contain paired thermal and RGB images, installation overviews, numbered observations, an anomaly register and a concise PDF summary. Agree the reference system before the flight so each observation can be found on site.

Define whether raw files, processed images or repeat-comparison material are required. The agreed output should state the method and limitations rather than promise a diagnosis the imagery alone cannot provide.

FAQ

PV inspection planning questions

01Can a drone confirm the electrical cause of a hotspot?+

No. Thermal and RGB observations can identify modules or areas for closer investigation. Electrical measurements and final diagnosis remain with qualified personnel.

02Can the flight be completed in any weather?+

No. Clouds, wind, rain, reflections and insufficient or rapidly changing solar loading can reduce comparability or make the mission unsuitable.

03What should an anomaly register contain?+

The agreed register can include a unique reference, location or row context, paired thermal and RGB images, an observation and a recommendation for ground verification.

Guides

Guides

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SZCZECIN BASE · WORLDWIDE PROJECTS

Prepare a PV inspection brief

Send the installation location, approximate size, layout, inspection objective and preferred timing. Aeronautiq will review feasibility and propose a capture and reporting scope.

Operational base: Szczecin, Poland. We support projects worldwide; execution is confirmed after reviewing local regulations, airspace, permits, safety and logistics.

PROJECT BRIEF

Prepare a project brief

Six short fields are enough to start a feasibility review.

The form saves the enquiry in the Aeronautiq project database. Email and WhatsApp remain optional contact channels. Do not enter sensitive data.