I didn't want to hijack this the thread ...
I have started my dive into battery backup. I am using the same MPP Solar LV6048 mentioned in the linked thread above.
The batteries (4 x EG4-LL 48V) and inverter are setup already and running fine. I'm taking this one step at a time. I currently charge the batteries from AC. This is not ideal. I want to use solar only.
I also have a separate grid tied system that I would like to pull some panels from and use to charge the batteries on the separate LV6048, off grid inverter.
The panels are REC 370AA Alpha Black. VOC is 44.1
The inverter manual states:
Number of MPPT 2
Max. PV Array Open Circuit Voltage 145Vdc
PV Array MPPT Voltage Range 60~115Vdc
Min. battery voltage for PV charge 34Vdc
If I understand this correctly, I could put 1 x 3 panels in series in each of the MPPT's for a total of 2220 watts of input.
If I want more than this, I would need a combiner box. I am clueless when it comes to these.
I would like to do 3s2p. That would keep that voltage below the max 146vdc at 132.3vdc.
What would the new wattage be? That would be 1 each 3s2p into each of the 2 MPPTs for a total of 12 panels.
What combiner box? 6 to 1? I'm guessing I would need 2 combiner boxer?
Just trying to understand how this works.
Thanks in advance.
PV Combiner Box Voltage To Inverter
Hi all, I am working on putting together a system for my shop and I had a question about voltage going to the inverter from the PV combiner. If I am connecting 2 strings of 6 panels in parrallel does the PV combiner combine to the total voltage of the 2 strings? So if each PV string going into...
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I have started my dive into battery backup. I am using the same MPP Solar LV6048 mentioned in the linked thread above.
The batteries (4 x EG4-LL 48V) and inverter are setup already and running fine. I'm taking this one step at a time. I currently charge the batteries from AC. This is not ideal. I want to use solar only.
I also have a separate grid tied system that I would like to pull some panels from and use to charge the batteries on the separate LV6048, off grid inverter.
The panels are REC 370AA Alpha Black. VOC is 44.1
The inverter manual states:
Number of MPPT 2
Max. PV Array Open Circuit Voltage 145Vdc
PV Array MPPT Voltage Range 60~115Vdc
Min. battery voltage for PV charge 34Vdc
If I understand this correctly, I could put 1 x 3 panels in series in each of the MPPT's for a total of 2220 watts of input.
If I want more than this, I would need a combiner box. I am clueless when it comes to these.
I would like to do 3s2p. That would keep that voltage below the max 146vdc at 132.3vdc.
What would the new wattage be? That would be 1 each 3s2p into each of the 2 MPPTs for a total of 12 panels.
What combiner box? 6 to 1? I'm guessing I would need 2 combiner boxer?
Just trying to understand how this works.
Thanks in advance.