I am confused. I dont do residential. But I helped a buddy out whou built a three car grage with a second story (game room)about 75' from the house. I ran conduit from the house service, to a 100a panel in the garage. Ran #2 SER in the conduit.

I than drove a ground rod, right outside the garage where the conduit came up, and bonded my garage panel (like a service) and ran a #6 grounding conductor to my electrode.

The inspector told me to disconnect the ground rod and use the grounding conductor in the SER for the ground only.

I did what he said, but do not agree.

Whom is right?