Mixing panels with solaredge?

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  • DanKegel
    Banned
    • Sep 2014
    • 2093

    #1

    Mixing panels with solaredge?

    As far as I can tell, when using solaredge, it's safe to mix wildly different panel types in a single string.
    Anyone run into problems doing that?

    I ask because I'm toying with the idea of substuting two gxb300's in a planned array of lg305's to compare them. (Field tests are fun.)
  • ButchDeal
    Solar Fanatic
    • Apr 2014
    • 3802

    #2
    Originally posted by DanKegel
    As far as I can tell, when using solaredge, it's safe to mix wildly different panel types in a single string.
    Anyone run into problems doing that?

    I ask because I'm toying with the idea of substuting two gxb300's in a planned array of lg305's to compare them. (Field tests are fun.)
    From SolarEdge techs, mixing modules is zero issue as well as mixing optimizers.
    OutBack FP1 w/ CS6P-250P http://bit.ly/1Sg5VNH

    Comment

    • SunEagle
      Super Moderator
      • Oct 2012
      • 15161

      #3
      Originally posted by DanKegel
      As far as I can tell, when using solaredge, it's safe to mix wildly different panel types in a single string.
      Anyone run into problems doing that?

      I ask because I'm toying with the idea of substuting two gxb300's in a planned array of lg305's to compare them. (Field tests are fun.)
      Probably will not be a problem. Now using a few 100 watt panels mixed in with 300 watt panels may give you some heartburn.

      Let us know the results after you experiment.

      Comment

      • bridaus
        Member
        • Dec 2014
        • 30

        #4
        Can you be more specific on this statement? Not that I would do it, or even recommend doing it, but what I understand of the technology so far, there should be no issue with any size. If it meets the optimizer/SolarEdge spec, it should not give heartburn in any way. Don't mean to disagree, just understand.

        Originally posted by SunEagle
        Probably will not be a problem. Now using a few 100 watt panels mixed in with 300 watt panels may give you some heartburn.

        Let us know the results after you experiment.

        Comment

        • sensij
          Solar Fanatic
          • Sep 2014
          • 5074

          #5
          Absolutely nothing wrong with 100 W panels as long as the voltage meets the optimizer specs. The SolarEdge inverter cares nothing about what panels are used, it only sees optimizers.
          CS6P-260P/SE3000 - http://tiny.cc/ed5ozx

          Comment

          • SunEagle
            Super Moderator
            • Oct 2012
            • 15161

            #6
            Originally posted by sensij
            Absolutely nothing wrong with 100 W panels as long as the voltage meets the optimizer specs. The SolarEdge inverter cares nothing about what panels are used, it only sees optimizers.
            I didn't realize they even made optimizers for 100 watt panels that had similar output specs or were even compatible with the higher wattage panel/optimizer system.

            If there is hardware like that then my earlier statement is incorrect and heartburn will not happen.

            Comment

            • sensij
              Solar Fanatic
              • Sep 2014
              • 5074

              #7
              Originally posted by SunEagle
              I didn't realize they even made optimizers for 100 watt panels that had similar output specs or were even compatible with the higher wattage panel/optimizer system.

              If there is hardware like that then my earlier statement is incorrect and heartburn will not happen.
              Think about it like this... even a 300 W panel might produce <100 W for a significant portion of a cloudy day. As long as the voltage is right, the optimizer will adapt to the current. With an MPPT range of 8 - 48 V on the smallest optimizer or 8 - 60 V on the next optimizer size up, most panels will be fine.
              CS6P-260P/SE3000 - http://tiny.cc/ed5ozx

              Comment

              • Panelmal
                Banned
                • Nov 2014
                • 39

                #8
                Originally posted by sensij
                Absolutely nothing wrong with 100 W panels as long as the voltage meets the optimizer specs. The SolarEdge inverter cares nothing about what panels are used, it only sees optimizers.
                Just installed one of these systems last week on a bus garage with a lot of exhaust pipes, the inverters are sharp and the install is easy. Would definitely recommend.

                Comment

                • inetdog
                  Super Moderator
                  • May 2012
                  • 9909

                  #9
                  A 100 watt panel is likely to either be old or be a battery panel with a nominal 12V output. Make sure that the optimizers will work with a voltage as low as the Vmp of your 100W panels, preferably with some margin for voltage drop as the panel heats up.
                  SunnyBoy 3000 US, 18 BP Solar 175B panels.

                  Comment

                  • sensij
                    Solar Fanatic
                    • Sep 2014
                    • 5074

                    #10
                    Originally posted by sensij
                    With an MPPT range of 8 - 48 V on the smallest optimizer or 8 - 60 V on the next optimizer size up, most panels will be fine.
                    Originally posted by inetdog
                    A 100 watt panel is likely to either be old or be a battery panel with a nominal 12V output. Make sure that the optimizers will work with a voltage as low as the Vmp of your 100W panels, preferably with some margin for voltage drop as the panel heats up.
                    Yes, 12 V panels are fine on SolarEdge optimizers.
                    CS6P-260P/SE3000 - http://tiny.cc/ed5ozx

                    Comment

                    • solarfrank
                      Member
                      • Apr 2015
                      • 78

                      #11
                      Just make sure module it is compatible with optimizer and also optimizers are inter-compatible, like P300 with P350 and P400.

                      Inter-compatibility of SolarEdge Power Optimizers

                      Comment

                      • loobosh
                        Member
                        • Mar 2015
                        • 40

                        #12
                        I have a SE7600 with P300 optimizers in a string of 18 285 watts, I have 16 Sanyo HIP 54.8V panels 190 watts that I am not using that I want to add, but need the P400 can I use them two on 1 inverter 2 strings.
                        Last edited by loobosh; 11-25-2016, 05:14 PM.

                        Comment


                        • ButchDeal
                          ButchDeal commented
                          Editing a comment
                          Yes you can add them to the same inverter
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