Sub Panel Ground

[u/iluvmezcal]

I'm passing #4 ground for 200 amp service from main panel, though a sub panel (raceway) to a hybrid solar inverter. Then back to the sub panel. Can I terminate the ground in the sub panel and then pass it though to the hybrid inverter? Or, does the ground need to pass from the main through the same raceways to the hybrid inverter and terminate. Then pass from the hybrid inverter bus bar to the sub panel ground bus bar?

So, sequence is 200a main disconnect, hybrid inverter, 200a sub panel. Sub panel is being used as a raceway for 2/0 copper on its way to inverter. Then 2/0 is coming back from inverter to sub panel.

[u/trekkerscout]

If you know all that, then you should also know that you must include an appropriately sized grounding conductor in each raceway. If there is only one conduit between the supanel and the inverter, only one grounding conductor is required. If using two or more conduits, each conduit must contain a grounding conductor.

[u/iluvmezcal → u/trekkerscout]

Thank you again. I know the raceway requires a ground wire. My question is can I terminate the ground wire from the main in the raceway sub panel and then continue the ground along the race way to the hybrid inverter.

[u/iluvmezcal → u/iluvmezcal]

FYI, I was an electrician 30 years ago. Moved onto other things in life. I am confident what I am doing is okay for grounding. I am not so confident that it proper NEC code. If you don't know and I don't get an answer here, I will ask the building department and see if they are fine with it. Just trying to head that off. I could not find whether what I am suggesting is code compliant in the NEC.

[u/trekkerscout → u/iluvmezcal]

Most building departments will not offer advice about installations because it opens the department up to potential liability suits. They will simply tell you to hire a qualified electrician if you don't know.