EG4 6000XP Ground Rod and Connect location

[momoaz]

Ok hooking up Off Grid solar array, disconnect, EG4 6000, fused disconnect, 100a load panel. I'm not going near the public utility on my house all isolated off grid. I understand the ground rod connects direct from the load center to earth ground with #6 bare copper. Please tell me where do I connect the frame ground for the panels? The wiring diagram for the 6000XP for off grid shows no ground even hooked up to the inverter. Des the Panel ground land at the inverter and then continue to the disconnect and then the load center? Lastly do I bond ground to neutral at the load panel? The EG4 manual says the neutral ground bond should be at the first means of disconnect for the grid so that would be at the load panel?

 

[rodrick]

There’s several threads on the forum about grounding if you search look for ones with @timselectric he has the best knowledge on this

But here’s my take on it
2 grounding rods driven 8 feet apart
Only one ng bond typically in main panel insure inverter is not bonded
All grounds run directly to ng bar connected to the ground rods always keeping the neutral separate in all other locations

If I’m incorrect Tim will chime in hopefully

 

[timselectric]

I'm not going near the public utility on my house

If you have an existing service, you already have a grounding system.
Everything that you add should be connected to the existing grounding system.
One grounding system for everything.

Everywhere you run current carrying conductors, you also run an EGC.
Everything is grounded/bonded by the EGC's. And they all connect together whenever they meet.

You will have EGC's between:
Solar array and AIO
Battery enclosures (if metal) and AIO
AIO and loads panel
Loads panel or AIO, and existing grounding system

The N/G bond can either be at the AIO or the loads panel.
I prefer the loads panel. As long as the AIO doesn't do it automatically.
There can only be one.

If you decide in the future to connect the AC input to the existing utility service, this will change.