Module Testing
Early identification of defective solar modules and measurement of module performance
Intact solar modules with maximum performance play a key role in assuring the yield of your PV system. Using high-precision measuring equipment and proven testing methods, our experts inspect your modules for weaknesses and determine their actual performance – on-site and in our laboratory. As a result, defects are identified and rectified before a project is completed and you achieve the forecasted energy yield.
Your benefits
- Assurance of forecasted energy yield through identification of defective solar modules
- Risk mitigation by module tests following delivery and installation
- Prevention of dismantling/transport damage due to on-site module measurement
- Report to prove warranty claims to the manufacturer
Services
Thermography
- Recognition of deficiencies and defects on the basis of temperature differences
- Localization of inactive cell areas, short circuits in the solar cell structure, defective soldering
and bypass diodes
Performance measurement
- Measurements on site and in the lab
- Recording of a current-voltage characteristic curve and documentation of the maximum power point (MPP) of a module
- Determination of average actual module performance and early recognition of possible inconsistencies
- Detection of defective modules
Low light
- Recording of a current-voltage characteristic curve at defined irradiance intensities
- Representative curve profile of the solar module’s efficiency levels on the basis of irradiance intensity
- Analysis of the determined curve profiles
Electroluminescence measurement
- Measurements on site or in the lab
- Identification of defects in the solar cell structure, e.g. micro-cracks, inactive sections and screen printing errors
