Off grid 1170W system with main panel grounding question(s)

[Outlook214]

I have read and searched until my head hurts and I think I end up more confused, so I figured I'd just post a thread. I have an off grid cabin that we've used a generator for electricity the last 25 years. I am in the process of installing a 1170W complete solar system with a hybrid inverter/controller. I am installing a Square D 6 space indoor main lug load center. The camp up to this point has only had one circuit that feeds the entire place. I am going to put each room on a separate circuit, therefore installing the load center. There was no grounding rod at the camp so I just installed one. I understand I need to ground the solar panels, the load center and the hybrid inverter and circuits. My question is what is the right way? I read conflicting information. Since the load center is my main load center and not a sub panel, should my ground and neutral use the same bus bar and just ground everything through that bus bar connected to the newly installed grounding rod? Or, even though the load center does not have a separate grounding bus bar, do I need to add one? In which case I'd run all grounds to the added grounding bus bar that is attached to the grounding rod and all neutrals to the neutral bus bar. Thanks in advance!

 

[Mattb4]

If you establish this new panel as the Main it will be the sole point that a NG bond is made. That can be at one busbar for both N and G if it simplifies things. No need to add another unless you need places for all the G an N wires to attach to. If you do need to add one make sure that a solid connection exists between it and the one your neutral is connected to.

All metal components of your electrical distribution system should be attached back to the main panels ground. Typically called case grounding.

 

[Outlook214]

Thanks. Yes, this Load center will be the only one I use and it only has the one busbar with the green ground screw. I understand that there can only be one neutral/ground bond in an electrical system. My confusion came from (various sources) the fact that we will likely still need to run the generator on occasion especially during extended rainy and winter when the days are shorter. I will be getting AC into the Hybrid inverter from the gen, but there is no current ground let alone a NG bond anywhere and I don't believe the inverter has an NG bond, but I am going to double check that, so I didn't see why I wouldn't just NG bond at my main that I'm installing, just wanted to double check. Thanks again.