Grounding a Grid-Tied PV Array
I’m self installing a grid connected solar system and have some questions about grounding it. I’m using a 6 gauge continuous grounding wire conductor within each array and to connect 3 arrays together. I’ve read that the grounding conductor must go inside any conduit carrying the other panel conductors connecting the arrays together. However I’ve also read that the steel Emt conduit itself can also be used as the grounding conductor as long each end of any Emt conduit is suitably connected to ground.
What’s the story on that? Also, I’m struggling to conceptualize how to get a continuous bonding path from the water proof junction boxes mounted on the rails to the grounding conductors that the conduit is connected to. I’m sure there is a best practices method to do that but being a diy person I don’t know what that is.
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