Oof, I wish I could edit the OP and fix it for you. BOM is bill of materials or a parts list. I was trying to be concise not sound foreign. "I have a hydro system, and want to add battery and solar. is the parts list below good, am I understanding phase 3 well?"
The Radian 8KW Flexpower is the...
tldr;
have hydro, want battery & PV. is good BOM? good phase 3 understanding?
phase 1 BOM: rack of gyll batteries and 2x growatt 5KWs offgrid stackables for a house grid, with the hydro as the "utility grid" and only power source.
phase 2 BOM: solar for house & barn. second rack of batteries...