Solar Testing

Photovoltaic Measuring and Testing


To guarantee a good quality and high yields, solar panels should be checked and maintained regularly. Modern tests give information about different kinds of damages and their causes.


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Kinds of Damages


-          Decreased performance

-          Micro cracks, broken cells and inactive areas

-          Faulty bypass diodes

-          Hotspots and other thermic abnormalities

-          Manufacturing quality

Causes of Damages


-          Transport damages

-          Integration damages

-          Hail damages

-          Storm damages

-          Lightning damages / overvoltage

Tests


Performance Test

Performance Tests



This test maps the performance of your solar panel through high-performance LED flashes. During this so-called 'flashing', the module gets flashed with a calibrated flasher, measuring the electrical output and power under standard test conditions (STC).



Electroluminescence Test

Electroluminescence Tests


High-resolution electroluminescence recordings can visualise damage to cells, making fractures and micro cracks on the solar cells visible. In an electroluminescence test, a module is photographed with three high-resolution NIR-CCD cameras that detect even the smallest cracks and damages. The test documentation comprises images of the complete module and of every damaged cell.



Thermographic Test

Thermographic Test



A thermal imaging camera allows the detection of thermal anomalies in the solar cells in the photovoltaic module. During a thermographic test, possible weak spots in cells, connectors and junction boxsed are identified with the help of an infra-red camera.

Other possible test include insulation tests, where the modules are placed in a bath of water while 1000 volts DC is applied to them. A module passes the test when it upholds resistance for two minutes.


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