![]() ![]() ![]() When on-grid, the AC-coupled solar can pass-through if export is allowed (as it would be in the case of legacy grid-tied solar) or if it is a new AC-coupled install without any right to export, it will have to be connected to the Gen port and must have relay control to shut down AC-coupled PV production whenever all AC-coupled power cannot be consumed (by offsetting loads and charging battery). ![]() Click to expand.The simplest way I think of AC-coupling is that you have no DC-coupling (no MPPT, integrated or external) and only have AC-coupled solar power available.Īt a minimum, this means that in backup / offgrid mode, AC-coupled solar power must be used to charge the battery until the battery is full, at which point it must be shut down (typically by frequency-shift, but relay control on the Gen. ![]()
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