ksmithaz1
Solar / EV Junkie
I'm waiting for my 2 18Kpvs to ship. Does this mean I should change my order to this configuration?
2 18K's makes for a very simple setup and wiring, 2 boxes and 100A of AC output. If you like connecting a lot of wire and putting in bus-bars, and ... then by all means buy more boxes and hook them up. The more boxes you have the more complicated the wiring, but the greater the redundancy. So with 4 6K's, one goes down you have 75A , vs 50A with the 18K. Then again the more boxes you have the more likely one will fail. If you decide you need 150A you only put up one more box instead of 2.
I think you will always have fewer problems if all the equipment is the same, and you have fewer pieces of equipment. YMMV.