eriemountain
New Member
- Joined
- Mar 26, 2022
- Messages
- 23
I'm cobbling together an off grid system with some renogy batteries I bought on sale, which cannot be wired in series (something I did not understand the implications of at the outset). I intend to eventually build a more sensible 48v system, but I'm the meantime I'm going to get started with what I have.
This is what I have so far. I'm struggling to understand grounding and how to do it properly. I would also appreciate knowing any red flags this setup raises:
8 panels @ 200w (12v x 15a)
2 paralleled series of 4 = 48v @ 30a
15a mc4 in-line fuses on each series positive
10 gauge wire to charge controller w/
In-line On/off switch on positive
100a mppt charge controller
4 gauge wire from controller to 600a pos & neg busbars w/ 100a in-line breaker on pos
4 @ 0 guage wires from busbar to 4 li ion 12v 100ah batteries (pos and neg)
125a terminal mounted fuse on each batt positive
0/4 cables from busbars to 3000w 12v inverter w/ 300a terminal mounted fuse at inverter pos
To ground the batteries do I just bury a copper bar into the ground nearby and run a wire from the neg busbar? If so, what size, and how deep? Etc.
Do the panels need grounding?
Thanks in advance!
This is what I have so far. I'm struggling to understand grounding and how to do it properly. I would also appreciate knowing any red flags this setup raises:
8 panels @ 200w (12v x 15a)
2 paralleled series of 4 = 48v @ 30a
15a mc4 in-line fuses on each series positive
10 gauge wire to charge controller w/
In-line On/off switch on positive
100a mppt charge controller
4 gauge wire from controller to 600a pos & neg busbars w/ 100a in-line breaker on pos
4 @ 0 guage wires from busbar to 4 li ion 12v 100ah batteries (pos and neg)
125a terminal mounted fuse on each batt positive
0/4 cables from busbars to 3000w 12v inverter w/ 300a terminal mounted fuse at inverter pos
To ground the batteries do I just bury a copper bar into the ground nearby and run a wire from the neg busbar? If so, what size, and how deep? Etc.
Do the panels need grounding?
Thanks in advance!