I have a Sungold power 4000 watt 120/240 split phase 48v inverter, I want to increase my output by adding another inverter, is this something I could do by using a grid-tie inverter?
Did someone manage to fool grid-tie inverters to provide power without grid with a small inverter? If yes, what must be considered? I have noticed a pure sine inverter claiming "omnidirectional stability", is that what is required not to burn through if the grid-tie converter feeds-back?