Parallel Growatt AC wiring

[llynn283]

I have looked all over this site and youtube for instructions on how to safely wire AC in-out for 2 Growatt 3K-24V in parallel single phase oporating in Grid Assist/Backup mode . I'm new to solar and am not confident with the bits and pieces of info I have managed to pick up, so much of which is incomplete or contradictory. Have basic electrical skills but this project has already exceeded budget, and do not want to fry,burn,or electrocute equipment,house or self. The diagram in Growatt manual gives no indication of what to do with the grounds. And then there is the issue of the Ground_Neutral bonding(or lack of it).

Here is my system:
2 Growatt batteries SPF 3000TL LVM-24P
6 REC panels 330 watts 3S2P
4 12V SOK 206aH 2S2P

Detailed drawing indicating wire sizes, breakers, sub panels etc. would be greatly appreciated

 

[llynn283]

Forgot to mention output is to Reliance controls 6 circuit transfer switch (all 120V)

 

[WYtreasure]

Welcome to the party. Maybe the answer is in this thread.

Parallel Single Phase Wiring

Hello Again Folks, I'm going to wire two 3000w 120v growatt inverters into a parallel 6000w 120v unit. What does that wiring look like at the ac output breaker box? I currently have it in split phase with each unit powering one busbar in the breaker box, with two 15a breakers going out of each...

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