Hello I have a quattro 24-8000-200 I have 8kw of solar with a blue solar 150-85 I want to later on grid tie a solar inverter for my day usage but I am in France and I can't back feed I will get big fines . so can I use power assist with my 100kw of batters for big loads without back feeding ? If so how do I set it up do I go on Ac input Ac output ?