What is Energy Essentials?  It it like a UPS??  I don't see any information on their WEB page unless I just missed it.

I have been waiting for them to produce the battery 14S5P which I think means 14 cells in series and 5 parallel strings.  That would make it a nominal 48 VDC at almost 10KWH, just perfect for home or small commercial solar electric system.

Maybe they will make an announcement soon.