1. Home
  2. Applications
  3. Monitoring and testing photovoltaic plants

Photovoltaic systems

Fast and reliable fault detection.

With thermal imagers from Testo.

Reliable and efficient operation of photovoltaic systems.

Due to energy transition, the number of photovoltaic systems on the roofs of homes and commercial buildings is increasing rapidly. Solar cells, modules, as well as other electronic components must be checked regularly, especially since they are located outdoors.

Installation errors, severe weather, and aging can cause defects in modules and components such as inverters that reduce energy output. Infrared thermography offers the possibility to locate problems on PV systems quickly, precisely, and reliably.

Detect thermal anomalies on photovoltaic systems quickly, safely, and reliably

  • occurs when an inactive cell continues to be supplied with power by the active cells, e.g. due to lightning or hail.

  • the cell then converts this energy into heat.

  • The resultant “hotspots” could even destroy the module.

  • Overheated cells can be identified very easily with the thermal imager

testo 883 product recommendation

testo 883 thermal imager

  • Reliable fault diagnosis thanks to high image quality with resolution up to 640 x 480 pixels and NETD < 40 mK

  • Correct alignment and viewing angle thanks to manual focus and interchangeable telephoto lens

  • High functionality through simple operation and solar mode

testo 883 brochure

Checklist for testing PV systems with a thermal imager

  • When to check

  • What needs to be checked

  • Environmental and measurement conditions

  • Positioning of the imager

  • Error patterns and causes

Practical guide

Thermography in photovoltaic systems

What you need to know about thermographic inspection of small and large solar systems.

Download now for free

Error patterns and causes

Tips & tricks for measuring and avoiding errors

Choosing the right thermal imager

And much more...

Product recommendation and application example

testo 883

Find out more

testo 883 Thermal Imager

  • Reliable fault diagnosis thanks to high image quality with a resolution of up to 640 x 480 pixels and NETD

  • Correct alignment and correct viewing angle thanks to manual focus and interchangeable telephoto lenses

  • High functionality thanks to simple operation and solar mode

Application example

Download

Application example: Ensure efficiency of solar panels

  • Challenges and possible solutions when inspecting large photovoltaic systems with a thermal imager

How does a testo Thermal Imager help?

Shooting from a distance with telephoto lens

testo Thermal Imagers for solar panels

testo Thermography App

As SMART as Thermography can be

  • Stream thermal images to smartphones or tablets as a second screen

  • Quickly analyze thermal images on site

  • Add measurement points or comments

  • Quickly create reports and send via email

Download on Google Play
Download on Apple App Store

Report Wizard

Send e-mail

Sharing Thermal Images

Thermal Image Analysis

Second Screen