We have a 3ph Quattros system that functions as a UPS at the time. I want to connect 2 Fronius Symo Inverters on the system but since i have not obtained the feed in permission yet i want the power produced by the fronius inverters to be consumed in the building and not fed to the grid. The ESS assistant requires that the type of the grid to be determined is there any other assistant or way of system connection to combine the 3 systems all together. The function should be as follows The system shall work on solar power in absence of solar power it will feed in from the grid and in case that the grid goes down it will work as a UPS feeding the system from the batteries or the solar power. Is possible to set up such a system?
