Greg Canicio wrote:Thank you everyone for your responses. Yeah it seems I would need more planing for sure. Now what's the difference between 12v and 24v if I'm going to convert it to 110v anyhow?
It does not matter as long as it is in range to allow power electronics to make sure the system is happy.
More 60 cell (20v) modules are likely in the field at this point. Dont get hung up on 12v panels or 24v panels, for the most part, these are not what is used at all aside from pwm micro systems or using whatever is available to you. Some pwm controllers actually have high acceptance voltages. Some schneider/Trace/zantrex c series pwms can accept 125v and work fine, they just will not seek mpp.
Your control will require higher than max absorb voltage to operate effectively.
As far as 12v or 24v batteries, the higher the load amps are, higher battery voltages will allow more power per amp and thus lower current capacities in everything connected to it for the same power transmission.
For cabins, conserving homes and small standalone systems 12v and 24v can work nicely. In higher power systems 48v or higher is desirable. If you require more than 2000-2500w , more than occasionally, 48v will be a blessing when funding, installing and living with the system.