Core service · drone thermography

See what the eye cannot see.

Radiometric thermal imaging inspections with professional drones. From defective solar cells and heat leaks to overheated electrical installations — we map every anomaly precisely, documented according to the applicable inspection standards.

640×512
radiometric resolution
±2 °C
measurement accuracy
IEC 62446-3
compliant inspection standard
< 48h
digital report after the flight
Applications

Six applications, one technology.

From residential installations to industrial parks — the same sensor, always perfectly calibrated for the job.

Solar panels & PV parks
Hotspots, defective cells, bypass diodes, PID degradation and loose connectors — before they cost you yield.
Buildings & insulation
Heat leaks, cold bridges, missing insulation and air infiltration in roofs, façades and windows.
Moisture & leaks
Moisture infiltration in flat roofs, leaking pipes and hidden water damage in insulation.
Industrial installations
Motors, gearboxes, bearings and process systems — detecting wear before downtime.
Electrical installations
High-voltage cabinets, transformers and distribution boards. Loose contacts and overloads become visible.
Underfloor heating & HVAC
Trace pipe patterns, blockages and defective circuits without breaking up a single floor tile.
RGB and thermal image of solar panels with hotspots
RGB
Thermal
hotspots detected
7
out of 240 panels
Solar panels

A single defective cell can bring down an entire string.

PV installations lose on average 1–3% of their yield each year due to unnoticed defects. Our thermographic inspection images every panel individually and detects hotspots, defective bypass diodes and loose connectors — often before they show up in the inverter data.

  • Detection of hotspots, PID, LID and microcracks
  • ΔT measurement per cell in line with IEC TS 62446-3
  • Geolocation of every defective panel in the array
  • Meets warranty and insurance requirements
What we detect

Every anomaly has its own thermal signature.

We classify defects by type, ΔT and urgency — so you know instantly what needs fixing today and what you can monitor.

Anomaly type
Typical ΔT
Cause
Urgency
Hotspot (single cell)
20–40 °C
Damaged or shaded cell
Critical
Defective bypass diode
10–20 °C
Entire substring heats up
High
PID degradation
5–10 °C
Voltage-induced degradation
Medium
Contamination / bird droppings
3–8 °C
Local shading of irradiance
Low
Loose connector / cable
> 15 °C
High resistance, fire risk
Critical
Entire string down
uniform
Break in series circuit
High
Buildings & insulation

Heat escapes through places you'd never expect.

A poorly insulated building loses up to 40% of its heat through cold bridges, missing insulation, leaking windows and damp zones. Thermography literally puts colour on those losses — perfect for energy audits, EPC dossiers and renovation decisions.

Unnoticed yield losses
A single defective string can cost up to 30% of an entire array's output — invisible without thermography.
Fire risk
Loose electrical contacts and overheated cells are a real fire hazard in PV installations.
Energy waste
Poorly insulated buildings lose up to 40% of their heat through the roof, windows and cold bridges.
Unexpected downtime
Overheated motors and bearings fail without warning — except on a thermal image.
Thermographic image of a building façade showing heat loss
ΔT windows
14 °C
heat loss
Thermographic inspection of an industrial electrical station
peak reading
92 °C
transformer terminal
Industry & energy

Predictive maintenance, without production loss.

Motors, bearings, electrical cabinets and process systems heat up before they fail. A periodic thermographic scan detects those anomalies in time — without shutting down the installation and without putting people at height or near live components.

Early
Detection weeks before failure
Safe
No people near high voltage
In operation
No production interruption
Documentation
Traceable per component
Workflow

Six steps, from intake to digital dossier.

  1. 1
    Intake & objective
    You provide us with the type of installation, surface area and reason (yield loss, warranty, energy audit, maintenance).
  2. 2
    Timing & conditions
    We plan at the right time: PV requires >600 W/m² irradiance, buildings require a temperature difference of at least 10°C.
  3. 3
    Flight & capture
    Certified pilot flies a fixed grid with a calibrated radiometric camera — RGB and thermal simultaneously.
  4. 4
    Radiometric analysis
    Every pixel contains a temperature value. Our analyst marks anomalies by severity class.
  5. 5
    Digital report
    PDF dossier with thermal and visible imagery, ΔT measurements, GPS coordinates and concrete advice per defect.
  6. 6
    Follow-up
    After repairs, we optionally carry out a follow-up measurement to validate the fix.
Drone with thermographic camera in action
Optimal conditions
PV: >600 W/m² · Buildings: ΔT > 10°C · Wind: < 10 m/s
Comparison

Drone thermography vs. manual measurement

Traditional thermography from the ground or with a lift is slow, incomplete and expensive per MWp. From the air we measure an entire array in a single session.

Criterion
Drone (DROPS)
Manual
Entire array checked in a single session
No production or downtime needed
limited
Radiometric measurement per pixel
limited
Cell-by-cell detection
No ladder or scaffolding needed
Digital geo-referenced report
Cost per MWp
€€€
What you receive

A radiometric report, not loose photos.

Every defect is documented with exact temperature measurements, GPS location, RGB reference image and concrete advice — ready to forward to your installer, insurer or maintenance partner.

  • Radiometric images per zone or panel array
  • Side-by-side RGB and thermal images
  • Overview map with GPS location of each defect
  • ΔT measurements and severity classification per anomaly
  • Concrete advice: repair, replacement or monitoring
  • Report compliant with IEC TS 62446-3 and EN 13187
PDF dossier
Structured by severity
Dual imagery
RGB and thermal side by side
Measurements
ΔT and absolute temperatures
Standard
IEC 62446-3 & EN 13187 compliant
Frequently asked questions

What you often want to know before a thermographic inspection.

When is the best time for a thermographic PV inspection?

For solar panels we require at least 600 W/m² irradiance — that means sunny days from March to September, between 11am and 3pm. For buildings we work the other way round: preferably in winter, early morning or evening, when the temperature difference between inside and outside is greatest.

How long does an inspection take?

A residential installation: 20–40 minutes on site. An SME roof with 200–500 panels: 1 to 2 hours. A 1 MWp solar park: usually completed in a single morning.

What's the difference with a regular infrared camera?

Our drones carry radiometric sensors: every pixel contains an absolute temperature value we can later analyse and document. A traditional handheld camera from the ground lacks detail and shows no exact measurements per cell.

Can I use the report for warranty or insurance purposes?

Yes. Our reports comply with IEC TS 62446-3 (solar panels) and EN 13187 (buildings) — the standards accepted by manufacturers and insurers for warranty claims.

Do I need to prepare my PV installation or building?

PV: the installation must be in production during the flight (not switched off). Buildings: heating/cooling must run constantly for at least 24h beforehand. We provide a short checklist upon confirmation.

Do you work throughout Belgium?

Yes. Standard travel is included within 15 km of Geraardsbergen. Beyond that, we charge a limited mileage fee — always communicated in advance.

Ready for your thermography?

Make heat losses visible — before they cost you money.

Request your no-obligation quote. We'll send you a tailored proposal for your installation or building within 24 hours.