Is this a commercial install? 28KW of panels in unusual for a home.
Yeah it is a lot but ultimately I don't want to rely on grid power at all. It is for my shop (business) and my home, I average about 4-5000 watts usage around the clock, sometimes 3k being used and other times 9-10k being used and live where we get snow so wanted enough panels to generate the power we need and keep the batteries charged, which will be more challenging during the winter time. To start I will be using 60 panels on the 3 inverters and if that is not enough I will add a 4th inverter and the other 12 panels.. otherwise those 12 will be backup/spare panels.