Electroluminescence method

• Non-contact test method
• Special camera, use of infrared sensors
• Can be used at the customer's site
• Individual modules can be tested
• Detection of damage such as micro-fissures caused by hail, PID and transport damage,
• Detection of electrically inactive areas (cells/cell segments)
• Detection of faults/defects that would not be detectable with a visual check

Thermography method

• Infrared images with special camera
• Non-contact test method
• Can be used at the customer's site
• Individual modules or entire system can be checked
• Detection of defective bypass diodes, defective solder joints (increased contact resistance), inactive PV modules/cells
• Testing of inverters, AC connections, fuses and DC cabling and their connectors
• Detection of defects that would not be detectable with a visual check

Characteristic I-V curve measurements

• Proven and well-known testing method for performance assessment
• Fast and mobile method for determining the performance of individual modules or entire strings
• Determination of the current/actual power under real conditions
• Detection and analysis of shadowing and/or defective modules