C‑DRONE
Thermal-camera drone inspecting rooftop solar panels

🌡️ AERIAL THERMAL IMAGING · LYON (69) · €500–1,800 PER JOB

Drone aerial thermal imaging in Lyon

Drone thermography pairs a calibrated radiometric infrared camera with aerial mobility: in a single flight it reveals heat loss from a roof, insulation defects in a building envelope, failing photovoltaic panels (hot spots, blown diodes, dead strings), leaks in buried heat networks and water ingress beneath waterproofing membranes. Every pixel carries a usable temperature measurement, not just a colour.

Our thermal flights respect proper measurement conditions (indoor/outdoor temperature differential, absence of direct sun where required, humidity) and are paired with visible imagery to locate each anomaly. The report, produced in radiometric software by an operator trained in building thermography, locates and quantifies every defect. It is the reference tool for energy audits, photovoltaic plant operation and large-scale leak detection.

Free quote — aerial thermal imaging in Lyon

Rates

€500–1,800 per job — the range observed on the 2026 French market, including regulatory preparation, flight and delivery. The exact quote depends on the site, the deliverable and the airspace context in Lyon.

Common use cases

The local context in Lyon

Greater Lyon sits under the CTR of Lyon-Bron business airport, right next to the city, and is bordered to the east by the Lyon-Saint-Exupéry CTR: almost all urban flights happen at reduced height after coordination with air navigation services. The dense centre (Presqu'île, Croix-Rousse slopes) also requires the built-up-area scenario with prior notification to the prefecture.

Local demand is driven by a powerful economy: headquarters and laboratories of the chemical valley (Seveso sites, no overflight without agreement), Part-Dieu and Gerland construction projects, commercial real estate, nearby vineyards (Beaujolais, Côtes du Rhône) and a UNESCO-listed heritage — Vieux-Lyon, Fourvière — much in demand for tourism and film work.

Applicable regulations

Thermography follows the rules of the site being flown: open category A2/A3 for ground-mounted solar farms and buildings in clear areas (professional thermal drones usually exceed 900 g), specific category STS-01 with prefectural declaration for buildings in built-up areas. One specificity: building thermal flights are ideally flown at dawn or at night in winter, yet night flying is prohibited in the open category — it requires a specific-category authorisation or falls back on permitted dawn/dusk slots. Height under 120 m, AlphaTango operator registration, and particular care with parasitic reflections, which dictate controlled shooting angles.

Frequently asked questions

What time of year should building thermography be done?

From October to April, when the gap between the heated interior and the outside reaches at least 10°C. Flights take place early in the morning, before the sun warms the walls and skews the readings.

How much solar capacity can be inspected in one day?

An automated flight covers 10 to 20 MWp per day depending on the plant layout, with automatic hot-spot detection and each faulty module located by its coordinates.

Does the thermal camera measure exact temperatures?

Yes, provided a calibrated radiometric camera is used and material emissivity and ambient conditions are entered: typical accuracy is then ±2°C, sufficient for any building or photovoltaic survey.

Can this service be flown anywhere in Lyon?

Almost: CTR de Lyon-Bron; CTR de Lyon-Saint-Exupéry à l'est; Sites Seveso de la vallée de la chimie au sud. Depending on the exact location, the pilot picks the right framework (open or specific category) and files the required declarations — included in the quote.

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