Re: 12, 24 or 48 volt
The end available watt/hours are the same:
1104 A/hr * 12 V = 13248 W/hrs
552 A/hr * 24 V = 13248 W/hrs
Thus the total available power is theoretically equal with either system. (The experts here will probably post an explanation of the minor differences).
Going with the higher voltage system reduces the DC current, good if you use a lot of power at once (e.i. consistent high wattage draws). But it is easier to re-charge the 12V from solar because the panel array is more likely to be above battery voltage under any given light conditions. 12 V inverters tend to be less expensive, but also less wattage capacity*.
Others will post their own points of view with advantages/disadvantages. You get a lot of info off this board!
* I have seen an 8 kilowatt 12 volt inverter. Requires four sets of 1/0 cables to connect the DC. Sounds dangerous to me!
1220 Watts of PV, OB MX60, 232 Amp hrs, OB 3524, Honda eu2000.
Ohm's Law: Amps = Volts / Ohms
Power Formula: Watts = Volts * Amps