Quote:
Originally Posted by MN Renovator
I've talked to a few solar installers and based on what they say, some cheap Chinese manufacturers are using reject third market cells. Basically the cells get rejected by one manufacturer, go to the next and those cells get rejected and they go to a third manufacturer and generally you get junk in the end. I'm sure there might be a few Chinese manufacturers that are good but you'd have to do research on their track record to figure it out.
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More than one problem may be in play. I read that imprudent cost cutting in building the module was the problem, not the solar cells per se. So the electric connections end up having premature failures.