New member here.
I have searched the internet to try and get an answer to my question to no avail.
My apologies if this is the wrong place to post this.
I just had a 7.4kw system installed consisting of:
20 x REC 370 Alpha Black panels
20 x TS4-R-SMA optimizers
1 x SMA Sunny Boy 7.7 (SB7.7-1SP-US41) string inverter.
The 20 panels were mounted on a south facing roof with 2 strings of ten in 2 of the 3 inputs on the inverter.
I am thinking about expansion already as I plan a battery back up a few years from now.
I can add 4 more panels to my south roof and the panels/inverter can take up to 13 panels per string per the contracted company.
I was thinking that for the 3rd input I could also add panels to the west facing roof. I understand this roof will see 15% reduction in output vs south facing.
Will this affect the output of the panels on the south facing roof that are on the first 2 inputs?
Any information you can provide would be greatly appreciated.
I have searched the internet to try and get an answer to my question to no avail.
My apologies if this is the wrong place to post this.
I just had a 7.4kw system installed consisting of:
20 x REC 370 Alpha Black panels
20 x TS4-R-SMA optimizers
1 x SMA Sunny Boy 7.7 (SB7.7-1SP-US41) string inverter.
The 20 panels were mounted on a south facing roof with 2 strings of ten in 2 of the 3 inputs on the inverter.
I am thinking about expansion already as I plan a battery back up a few years from now.
I can add 4 more panels to my south roof and the panels/inverter can take up to 13 panels per string per the contracted company.
I was thinking that for the 3rd input I could also add panels to the west facing roof. I understand this roof will see 15% reduction in output vs south facing.
Will this affect the output of the panels on the south facing roof that are on the first 2 inputs?
Any information you can provide would be greatly appreciated.