Battery Bank Sizing
Using a system for grid backup is bank sizing that critical? What I mean is if you are on a fairly reliable grid and only have brief occasional outages, say a few hours, then do you need a lot of battery bank? When the grid goes down we cut way back on power usage. We do not "sell" power back to the grid. My system is Trace SW4024, 4 PVX2580 Concordes, 12 solar panels. As posted in earlier threads I am contemplating replacing my battery bank and if I go to 6 volt I am going to have to reduce AH (410) if I go with 4 PVX4050 batteries or go with 8 PVX2560 batteries to stay withing my current range of 516ah, with the PVX2560 I will be at 512ah. Also the 8 PVX2560 batteries are about the same $$ as 4 PVX2580 12 volt, a little less but that will be used up with extra cabling and fusing I assume.