100 watt solar panels
DConlyGuy
Registered Users Posts: 80 ✭✭
3 of the 4 panels i have have these lines in them, they seem to be working like always but i wondering iof these are all defective or not3 of
600 watts of solar panels,Epever 30 mppt , 2 PWHR12500W4FR battery's in 24 volt setup
Comments
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You can search for the term "snail trail" -- Generally not a problem (as far as I know):
http://www.onlinetes.com/article/tes0512-solar-industry-snail-trail/
If you see physical cracks/browning--Those are failing (ed) cells and would need the panel replaced.
-Bill
Near San Francisco California: 3.5kWatt Grid Tied Solar power system+small backup genset -
thanks bill i was reading a post over on other forum and sunking said it was junk, so i just wanted to make sure. i did test them all and all of them were putting out 20 volts each. it seems to be happening to a lot of the 100 watt panels, my renogy panel does not have them yet, but it ia 6 months newer than the others so ill wait and see if they develope them too600 watts of solar panels,Epever 30 mppt , 2 PWHR12500W4FR battery's in 24 volt setup
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You have to check/monitor Isc/Imp too... Voltage only check is not good enough to catch poor/broken electrical connections/cells.
-Bill
Near San Francisco California: 3.5kWatt Grid Tied Solar power system+small backup genset -
they hit 20 amps today in bulk that is what they have been hitting for last year ive had them600 watts of solar panels,Epever 30 mppt , 2 PWHR12500W4FR battery's in 24 volt setup
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snail trails are wavy lines, those have lots of straight components that look like cracking. I think they are going to fail you come a couple hot days and they start getting brown edges
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