Finish up a system last week with a sol ark 12K with Tess electric stackable batteries.
Each stackable battery is 10 kw. This setup is 30 kilowatts of storage energy. The batteries communicate perfect with the sol ark using a standard Ethernet cable.
Finishing up for a client. It's turning out pretty good. Has a 12 KW Growwatt inverter. A bypass switch in case the inverter ever failed for a generator. 10 kilowatt solar array. Nice sized lithium phosphate battery bank that is stackable. 54kw of storage!