Solar panel wiring

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  • Canadianeh
    Junior Member
    • Apr 2013
    • 3

    Solar panel wiring

    So I am buying 10-240watt 24 volt solar panels and was wondering the best way to hook them up would be? My CC is a FM80 and the panels will be about 150 feet away from the batteries. Thinking a series and parallel connection would be best as I'm allowed 150 volts input to the CC. I'm just not sure what size wire I should go with. Could someone also explain to me if I would be loosing power with various connections?
  • rainworm
    Member
    • Jan 2013
    • 57

    #2
    cc?

    What is c c? http://en.wikipedia.org/wiki/Empress...eth_of_Austria ?
    Google (FM-80) is a short-range air defense missile.
    ah ok found it. 80 Amp charge controller best of the best they say so should not lose power there.
    The 50 metre distance could lose you some if the voltage is to low.
    So you plan on putting 2 rows in series and then get 120Volt?
    I was looking at wiring also and was told by an electrician that the best to use is the same wire as they use when wiring the connection box up. Big wires.

    Comment

    • Naptown
      Solar Fanatic
      • Feb 2011
      • 6880

      #3
      The only way to do that if they are 72 cell panels with a VOC of about 40? is 5 strings of 2 in series
      What are the panel specs VOC
      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

      • Canadianeh
        Junior Member
        • Apr 2013
        • 3

        #4
        Thanks guys, the specs on the panels are 36.9Voc,8.9Isc, 245watts. So what I understand is that they should be wired in two strings then tied together?

        Comment

        • Naptown
          Solar Fanatic
          • Feb 2011
          • 6880

          #5
          you can make 5 parallel strings of 2 panels in series is the only way to make all 10 work
          If you used 9 you could make 3 parallel strings of 3 in series.
          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

          • Aric Dyson
            Junior Member
            • Apr 2013
            • 10

            #6
            Originally posted by Canadianeh
            So I am buying 10-240watt 24 volt solar panels and was wondering the best way to hook them up would be? My CC is a FM80 and the panels will be about 150 feet away from the batteries. Thinking a series and parallel connection would be best as I'm allowed 150 volts input to the CC. I'm just not sure what size wire I should go with. Could someone also explain to me if I would be loosing power with various connections?
            Make a good contraction of your solar panel by making and following the good process. I think the best you can do is try to analyze first if what are the best thing to do so that you can make a good one.

            Comment

            • Naptown
              Solar Fanatic
              • Feb 2011
              • 6880

              #7
              Originally posted by Aric Dyson
              Make a good contraction of your solar panel by making and following the good process. I think the best you can do is try to analyze first if what are the best thing to do so that you can make a good one.
              What is that all about?
              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

              • russ
                Solar Fanatic
                • Jul 2009
                • 10360

                #8
                Originally posted by Naptown
                What is that all about?
                I think English is not his native language?
                [SIGPIC][/SIGPIC]

                Comment

                • Naptown
                  Solar Fanatic
                  • Feb 2011
                  • 6880

                  #9
                  Originally posted by russ
                  I think English is not his native language?
                  Seems Google translate isn't working well for him either. But then it doesn't do technical things well.
                  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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