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Fronius Symo 20kw 3 phase inverter with battery use at night and backup

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  • Fronius Symo 20kw 3 phase inverter with battery use at night and backup

    Hi

    I had my Fronius Symo 20 kw grid tied inverter (3 phase) installed with 8kw Trina 305 watt solar panels a week ago

    1. phase 2 is that I now want to install batteries for night time use but also as a backup if our electricity provider sheds loads - up to +- 24 hours
    2. I bought 24 batteries (2.2 volt and 875 amp hr each) which I want to connect to give me 48 volts and 1750 amp hours (bought these batteries at a very very special price from a reputable supplier)
    3. my question is what more will I require (e.g inverter, charger etc) to connect the batteries to the Symo inverter (remember it is a 3 phase system)
    4 i want to keep the Fronius inverter - costed me an arm and a leg for the whole installation and cannot afford a whole change over now
    5. I would just like some short explanation on how to do it and what to buy

    Kind regards

    Frans

    ---Mod Note: Avoid dupllicate posts on the same topic please.
    Continued at
    http://www.solarpaneltalk.com/showth...-tied-inverter
    Last edited by inetdog; 09-26-2015, 01:10 PM.
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