Complete newbie Building an off-grid system

[Tags]

Hi All.... I'm new here and would appreciate some help with _little_ judgement (but sarcasm appreciated). I'm new to building an off grid system and I'd like help figuring out the inverter. I'm heavily leaning toward THE ONE, that's why I'm in this forum.

I've made some purchases already:
8 x 460w panels = 3,680
6 EG4 LLS - 48v 100ah Lithium batteries
Inverter??

Is THE ONE the right size for the batteries and my system?

Midnite Solar is supported locally, this is one of the reasons I'm leaning toward them. I know of a Victron dealer but not installer/service techs.
Maybe I pulled the trigger early on the battery and panels but I have concerns about potential future tariffs significantly increasing costs. I only had budgeted about $3500 for an inverter, but could stretch for the all in one, since it is all in one.

My largest load for the system would be the electric fridge which will pull less than 600kw/year, using energy star guides. Most likely to be 120v 15A. Dryer, stove, hot water heater (on demand) will be gas

I'd like advice and help understanding inverters and help making an inverter purchasing decision. I can get analysis paralysis from looking at things and listening to too many people!

Appreciate any help you can provide.
Questions fire away. I don't know what I don't know.
Thanks
-Doug Tags

[ClassicCrazy]

I don't have the midnite AIO but it should certainly be able to run everything you want to. It would give you lots of room to expand your system since I believe it has 3 independent mppt controllers on it.
I am not familiar with all the specs of it, but the place to start would be to use a string calculator and determine the configuration of your pv . I don't see one on midnite site for that inverter, but you could use one for the Hawkes Bay or Barcelona to get the calculations. They are all 600v PV input. That would give you an idea of  how to configure your pv.
 https://www.midnitesolar.com/sizingTool_barc-hb/index.php
The issue you might have is if you want to use closed loop communications between the batteries and the AIO , the inverter has be be programmed to talk the same language as the batteries , or vice versa - the batteries need to be programmed to talk something the inverter uses. I don't know those details but I would think it should be possible ?
As far as how much power you need in battery storage - that is something you need to calculate out by present energy usage. And you determine if you have enough PV to fill them back up often enough.
Larry