Richa: Re-configuring/Adding to my off grid system--Questions
I have 1760w of solar panels and 1260Ah of batteries(6 6V/420Ah/12v system) supplying a 3500w Aims Power inverter/charger. I intend to add another 140w panel to bring total up to 1900w. I will then have 2 ea. 6x100w strings and 1 5x140w string. According to Crown Battery info, I need 8-12A of deliverable current per 100Ah of battery bank capacity. So, 1260Ah/100Ah = 12.6 x 12 = 151.2A of deliverable current is needed to charge my bank in approx. 7.5 hrs. First, I need a reliable, properly-sized MPPT charge controller(s), i.e., 1 c.c. to receive total array V/A, or 3 c.c.s @ 1 per solar panel string. Second, what is the best solar panel wiring method, series, to provide higher voltage low current, or parallel, to provide higher current low voltage? Also, a correct wiring diagram would be greatly appreciated. My inverter is 12V, so I have to stick with that. Any replies are greatly appreciated.
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