nscottsdale
New Member
- Joined
- Aug 26, 2021
- Messages
- 77
Hi all,
I am down to connecting batteries and a load to call the city for a permitted off grid inspection. Appreciate a second set of eyes before flipping any switches.
Here is my plan using two MPP LV 6048 and thirty six Solarever 460 Watt panels:
The panels were installed on steel roof with slick mounting pads from S-5!
Because of my mistake, and parts were already ordered, - the LV 6048 has a max PV voltage of 115v , and my panels open voltage Voc 49v, so i had to add a lot of combiners and a lot of PV wires ... (instead of serial each row)
Every two panels in the 36 panel set is wired down to the combiners. All pairs reporting around 90 volts, and the combiner is alo reporting the same (i didn't throw the switch on these) . Inside i have this setup:
The two inverters are wired to receive the feed from the four combiners...
The two inverters AC out are paralleled as the feed into the AC cutoff switch and the output routed to my dedicated load subpanel.
I still need to:
[ ] Study the serial / connections between the MPP's and any startup details
[ ] Build the battery cables and parallel output of the MPP's to a terminal strip (bus bar) and that terminal strip for now will have a pair of matched length wires to only two 48v EG4 batteries as a starter battery pack.
I am down to connecting batteries and a load to call the city for a permitted off grid inspection. Appreciate a second set of eyes before flipping any switches.
Here is my plan using two MPP LV 6048 and thirty six Solarever 460 Watt panels:
The panels were installed on steel roof with slick mounting pads from S-5!
Because of my mistake, and parts were already ordered, - the LV 6048 has a max PV voltage of 115v , and my panels open voltage Voc 49v, so i had to add a lot of combiners and a lot of PV wires ... (instead of serial each row)
Every two panels in the 36 panel set is wired down to the combiners. All pairs reporting around 90 volts, and the combiner is alo reporting the same (i didn't throw the switch on these) . Inside i have this setup:
The two inverters are wired to receive the feed from the four combiners...
The two inverters AC out are paralleled as the feed into the AC cutoff switch and the output routed to my dedicated load subpanel.
I still need to:
[ ] Study the serial / connections between the MPP's and any startup details
[ ] Build the battery cables and parallel output of the MPP's to a terminal strip (bus bar) and that terminal strip for now will have a pair of matched length wires to only two 48v EG4 batteries as a starter battery pack.
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