Share grounding rod in PV/Mains hybrid?

[Gdwats]

Wow, again. I thought a system ground was required, so I drove 2 8' rods in the ground 6 feet apart connecting the first to the second with wire running from top of one to 18" down on the second. Attached grounds from system and hurried the whole thing up. Then I saw a single grounding rod for the house sticking up with a corroded, broken off ground clamp dangling there in pieces. Should I call the owner? Should I just re attach it? Should I attach it to my rod(s).

ps OP: not meaning to flood your post. Thought pertinent.

[Richiep]

take a look, especially around 7:50 mark on how lightning strike looks 'electrically': https://www.youtube.com/watch?v=YuDqXFvRv94

Wow! Mike Holt is an amazing resource!

Short answer, yes you can and should share a grounding rod.

Thanks!
Rich

[max2k]

I'm designing a PV and battery system to be used in a building that already has Mains power. Would it be ok to share the same grounding rod? Or should I drive a separate rod for the PV system?

Thanks
Rich

couple questions:
- why do you need batteries if you already have grid power? It is expensive hobby.
- are you using 'grounding' here in a sense of EGC or lightning protection?

take a look, especially around 7:50 mark on how lightning strike looks 'electrically': https://www.youtube.com/watch?v=YuDqXFvRv94

[Richiep]

I'm designing a PV and battery system to be used in a building that already has Mains power. Would it be ok to share the same grounding rod? Or should I drive a separate rod for the PV system?

Thanks
Rich