How do i connect this system below. this has been a challenge

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  • dway2k
    Junior Member
    • Jun 2012
    • 1

    How do i connect this system below. this has been a challenge

    I have Xantrex inverter (Xantrex XW - hybrid inverter / charger XW6048-230-50) inverter which is 230V output and 48 volts DC input am using in my home in Africa, it is connected and running on battery backup and i use generator o recharge the betteries when needed (I also have Xantrex charge controller (Xantrex XW-MPPT60-150) which i havent installed. I also have Trina Solar panel TSM 230dc05 all in Africa, where we have 230V system unlike 110V in the US. This is my first time actually trying to incorporate/integrate solar panels/modules into this my battery backup inverter system. I have an offgrid system with battery backup (Concorde Battery PVX-2240T 6 Volt 220 Amp Hour) already running well in the house, being charged by generator. I want to now add modules/panels to the system to reduce the number of times i have to buy diesel for the generator.
    My questions/challanges are
    1) how to interconnect the modules Trina Solar panel TSM 230dc05 to the already running system. I have enough modules (over 100 modules sitting unconnected), just want to know your advise
    2)how many of the modules can be used at one time. Average power consumption in the house is 2500W average
    3)also how do I interconnect the modules? do I connect serially or parallel.
    4) How many panels/modules should I connect to cpmensate for the 2500W to 4000 watt power consumption
  • Naptown
    Solar Fanatic
    • Feb 2011
    • 6880

    #2
    You have many more panels than you can use at this time off grid
    Is grid power available?
    And is net metering available?
    How many batteries do you have? 8? or more
    Depending on the battery type and charge rate of them this may be too many.
    If you are running one string of batteries then 60A will be OK as those are AGM batteries and the charge rate at 60A is about c/4
    You could in theory run 5 strings of three modules from that with one charge controller
    (40A max from array and 60A max output.) However this much power would be overkill.
    With that much power you may want to run some of the high use items in your home on sunny days when the charge controller is in float mode.
    If temperature compensation is part of the Charge controller use it.
    Last edited by Naptown; 06-11-2012, 12:20 PM.
    NABCEP certified Technical Sales Professional

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