About German solar power el tester standard
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6 FAQs about [German solar power el tester standard]
Why do solar panels need El testing?
Electroluminescence (EL) Testing identifies microcracks in your modules and can help in identifying the root cause. Microcracks are present in most solar installations, but catching severe microcracks and removing them early can prevent considerable performance issues and investment losses.
What is a TestLab PV module?
At the accredited TestLab PV Modules, founded in 2006, Fraunhofer ISE tests PV modules according to IEC and European standards for design qualification and type approval. In Raman spectroscopy, critical points of the module are irradiated with a laser.
What is PV power plant in-situ El testing?
In conclusion, PV power plant in-situ EL testing, particularly through innovative drone-based technologies, represents a paradigm shift in ensuring the performance and reliability of PV power plants.
Why is El inspection important for solar PV project development?
Indeed, today, everyone involved in PV project development is aware of the EL inspection as a non-invasive and hands-on methodology for the detection of electrical-based defects in solar PV modules .
Are in-situ measurements a good way to measure solar module performance?
Traditional quality control methods such as electrical safety checks and visual inspection have been the cornerstone of in-situ measurements at PV power plants to ensure solar module efficiency for years. However, these methods often lacked the precision to identify internal defects that could compromise module performance.
Are all modules El tested?
All modules are EL tested by manufacturers at the end of the production line, alongside IV and Hi-pot tests. An EL image can show many types of cell-inherent defects, not only microcracks. The pass or fail criteria of the EL image depends on the type of crack and the quantity per cell or module.