brown lines solar ?? hotspot? snailtrail? microcrack

[gendil]

my solar system is very good one ...so simple pwm controller +200am battery + 200 watt panel ...after 5 months just when winter come in i go to roof to clean the panel
and was suprised with this strange lines ....what are they ? how serious they are the system is still working however i am so worried

[Sunking]

Time for new panels. While you are at it get rid of the PWM controller.

[gendil]

are you sure .....they are supposed to live for 25 years not 5 months!!!

[peakbagger]

Sure looks like defective panels to me

[gendil]

SIR they still working fine ? the real question is ? what is the life expectancy left?

[gendil]

SIR they still working fine ? the real question is ? what is the life expectancy left?

i iwll try to be productive the this world !!


today morning 3 years afetr the appear of the spots and cracks and hooked it alone in 12 volt system with my new wiser3 mppt and here is the peak i get and i am still waiting for more power


have alook i get a 117 watt tormmorw it is a 250 watt so alot of loses but the real question now that i am ginna answer tommrow whta similiar nodel of solar should give?


chinese solar known to have a power lose even for new one tommrow i wi test new chinese one that similiar to the defected and we will see how much power it really lost


aftr all even a new 250 watt wont give peak of 250 watt so let me follow up tommorow



the real ceause for me doing all this is that this panel is holding a750 watt system to 350 watt bbeing in serious with 2 other 250 watt its amper lose have effected the other so today


i try to hit 2 birds with one stone


1 - show the world what a defected mini cracked panel can produce in terms of watt against its sisters that have no mini cracks

2 touble shoot my system and arrive to conclsuion at what is holding my system back i n the range of 350 watt


please have a look at watt

[gendil]

here is picture of new 265 what shame they almost same so mainly it not very bad .....either winters sun is not that effective or that all china solar are ineffecient since they day they wrere created