Hello,
I am in the process of building a small ESS system for my house. I have three-phase power, but I want to start slow, feeding just some critical loads; There is no solar at the moment.
I will be installing a 3s3p solar array, connected to a SmartSolar charge controller, feeding a couple of Pylontechs and a Multiplus II 5kW. ALL loads will be connected on the "critical loads" output of the inverter. The Multiplus will be connected to the grid, in case the battery runs out, or for the rare case there's excess demand. I want absolutely zero feed-in back to the grid. I will not be adding any more hardware at this time. Two additional Multipluses will be added later, along with a Cerbo, but not right now.
I am trying to understand what I need to do in order to be sure that there is no backfeed to the grid using the aforementioned configuration. Does the Multiplus also outputs from the AC-in, on not?
Thanx.
