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Thread: Life expectancy of PV panels

  1. #31
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    I am told the fundamental technology invented by Bell Labs 60 or more years ago is basically unchanged: crystalline silicon cells.
    As a result we can observe PV panels operating well on remote mountaintops, etc for decades.

    To my knowledge most of the systems i installed as a grunt in 2001 are still fine. (Usually inverters and batteries fail.)
    I have gone back and serviced them and customers are often convinced they need to replace but i advise against it. Usually I just add to it.
    Usually i will just re string the panels to "high V" 600VDC and get them a modern, grid tie, no battery inverter.

  2. #32
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    Quote Originally Posted by Zee View Post
    I bet the 75W panels were ARCO solar or Siemens and had circular cells or half circles. Just my WAG.
    Photos of the old modules
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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  3. #33
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    Quote Originally Posted by BillK-AZ View Post
    Photos of the old modules
    Nice.
    Oh wow, you can see the J box "burning" through on 3-4 of them.

    (Oh and I see now, you had mentioned they were Arco solar/Siemens)
    Last edited by Zee; 02-12-19 at 12:29 AM.

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