Urgent need t discuss Inverter

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Solar_wale
Solar_wale Registered Users, Users Awaiting Email Confirmation Posts: 1 ✭
in Solar Beginners Corner #1
Hi can i use a 7.5 kw inverter with 120 volts (10 battery X 12 volt) with 96 volts setup (8 batteries of 12 volts) 
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  • BB.
    BB. Super Moderators, Administrators Posts: 33,448 admin
    #2
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    Welcome to the forum Soalr_Wale!

    Specifically, what AC inverter do you have (Link)?

    In general, many (most?) FLA (flooded cell lead acid batteries) set (for example) a "dead" FLA battery at 10.5 volts (for a 12 volt battery). When an FLA battery gets down to that voltage--There is very little energy left in the cells, and very likely with permanently damage the cell(s) / Battery.

    So, for a 10 battery bank * 12 volt would report a battery bank as "dead" at 10*10.5 volts or 105 VDC.

    An 8x12 volt bank with a nominal 96 VDC would normally be reported as "dead" with a 120 VDC nominal designed AC inverter.

    Checking the manual for any possible configuration adjustments could possibly allow you to reprogram to use a somewhat lower nominal battery bank.

    -Bill
    Near San Francisco California: 3.5kWatt Grid Tied Solar power system+small backup genset
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