Off Grid System Build

[Silvernail]

I want to build a 12kw off grid system using a Growatt 12kw split phase inverter, assemble a 48v battery use signature solar q cell bifacial panels. Any thoughts on this/helpful input?

The included links are from https://www.mobile-solarpower.com/solar-panels.html

Thanks so much

Respectfully,
Roy Silvernail

 

[snoobler]

Welcome to the forum.

I can't find it listed, but Growatt/MPP Solar are notorious for high idle power consumption, i.e., the power they consume just by being on. Based on smaller units, I suspect that unit will pull 200W just sitting there providing AC power even if no loads are running. That's 4.8kWh/day of wasted energy. Assuming you just make 1 battery from 16 of those cells, the inverter will eat 33.5% of your battery capacity before it powers any loads.

More important than the components you select is conducting proper planning.

Link #5 (or #6) in my signature for your available solar.
Link #1 in my signature to conduct an energy audit of your actual needs.

Once you have the above, you can design a system that meets your needs.