Hello
Does this look right for grounding? Do I need a bond between the neutral and ground? If so can I make it from ground bus to the negative tie point inside the MNDC? There is also going to be a Morningstar 300 inverter that will be wired into the AC load panel with a transfer switch between it and the other 1000w inverter that has a GFCI. Any advice would be appreciated.
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For most PV systems a ground fault protection device is required that provides the bond between dc negative and ground. On the ac side neutral must be connected to ground too. The inverter with a GFCI probably has that connection made internally because the bond must be done ahead of the GFCI. The transfer switch will complicate things unless the neutral is also switched.