Solar panels are usually sold with 25 to 30 years of performance promises. But what happens after that, when the warranty language is long gone and you are
Solar panels are usually sold with 25 to 30 years of performance promises. But what happens after that, when the warranty language is long gone and you are
panels are the least problematic part. what breaks first on the roof are either the mc3/mc4 connectors due to moisture creeping in and corroding the cables or uv lighting destroying the cables. another issue are inverters, most of them are prone to failure after about 10 years and after some time the installation on the roof isn’t compatible with newer hardware due to different voltage and wattage ranges.
but all in all these are minor issues compared to replacing a bunch of panels - which proved to be unnecessary. the few times i replaced an old panel was due to improper installation, improper handling (people stepping on them) and creeping failures from production faults.