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  • Volts but no amps on 15 month old panel

    My home made panel was working fine until recently when it stopped reporting to Enphase. I am getting plenty of volts, but zero amps! It is not even powering the microinverter enough to turn on the light.

    Any one out there with any idea what I should look at? Plenty of sun when checking amperage (my other home made was kicking out 2.5 amps).

    Thanks.

  • #2
    how are you checking
    Voc and Isc?
    NABCEP certified Technical Sales Professional

    [URL="http://www.solarpaneltalk.com/showthread.php?5334-Solar-Off-Grid-Battery-Design"]http://www.solarpaneltalk.com/showth...Battery-Design[/URL]

    [URL]http://www.calculator.net/voltage-drop-calculator.html[/URL] (Voltage drop Calculator among others)

    [URL="http://www.gaisma.com"]www.gaisma.com[/URL]

    Comment


    • #3
      Originally posted by wrighta View Post
      My home made panel was working fine until recently when it stopped
      You got 6 months more than expected out of a DIY panel. Water vapor penetrated and corroded the tab terminals so now you have now current from high resistances.
      MSEE, PE

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      • #4
        Any ideas for a fix?

        Any way to improve this issue?

        Comment


        • #5
          Originally posted by Naptown View Post
          how are you checking
          Voc and Isc?
          I have a volt/ amp meter which I connect to the wires just before they enter the microinverter.

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          • #6
            Unplug the inverter and check VOC and Isc
            NABCEP certified Technical Sales Professional

            [URL="http://www.solarpaneltalk.com/showthread.php?5334-Solar-Off-Grid-Battery-Design"]http://www.solarpaneltalk.com/showth...Battery-Design[/URL]

            [URL]http://www.calculator.net/voltage-drop-calculator.html[/URL] (Voltage drop Calculator among others)

            [URL="http://www.gaisma.com"]www.gaisma.com[/URL]

            Comment

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