Panel setup questions for MPP 3048 lv-mk split phase

[koovoodoo]

Newbie here and just asking to learn about panel setups.

I already purchased 2x MPP 3048 lv-mk with plans for split phase usage. I got 8 q cell g+ 380w ($170 per) panels with initial plans for 2s2p setup per. I would need to run 10gauge wires (2x about 70 feet) based on amps. Would you guys recommend me getting another panel then? Would it change much to setup as 1 inverter with 3s2p, and 1 inverter with just 3s? I would run it with 1 being 10awg and 1 being 12awg. Besides cost, which route would you recommend? Just trying to understand logic/efficiencies. Thanks!!!


Edit for panels specs:

Q-Cells Q.PEAK DUO BLK ML-G9+ 380 (380W) Solar Panel

PS. Shading is not an issue at all.

 

[12VoltInstalls]

Just trying to understand logic/efficiencies

Don’t overthink it imho

What i would do is buy three more panels. Than you can 3S2P both and thwart the pesky cloudy days and Nov-March

Shading is not an issue at all

But is latitude or snow an issue?

Nobody ever says, “I sure wish I had less solar production.”

would run it with 1 being 10awg and 1 being 12awg

I overcable solar wire runs.
I would just use 10ga good quality solar wire if the sum amps < 30. The difference in cost between 12 and 10ga is what? About a pizza and a bottle of soda?

That’s how I think stuff through. Being cheap can get expensive in the end.

 

[koovoodoo]

Don’t overthink it imho

What i would do is buy three more panels. Than you can 3S2P both and thwart the pesky cloudy days and Nov-March

But is latitude or snow an issue?

Nobody ever says, “I sure wish I had less solar production.”


I overcable solar wire runs.
I would just use 10ga good quality solar wire if the sum amps < 30. The difference in cost between 12 and 10ga is what? About a pizza and a bottle of soda?

That’s how I think stuff through. Being cheap can get expensive in the end.

I live in New Mexico, so latitude is ok. I expect losing production in winter, but when I was calculating, it seemed like I only needed about low 3 kWh ~. That was only reason I'd be asking about efficiency.

 

[TomC4306]

My setup is the same. Split phase MPP 3048.
On one inverter I have 3S6P using a 6-1 combiner. Awg8 from there to inverter. 60 feet.
On the other inverter (charger) I have 3S2P wired direct using branch connectors and Awg10.

Each charger is independent of the other. You don't need to match anything between the two.
Just 2S your remaining pair.

 

[12VoltInstalls]

.

Each charger is independent of the other. You don't need to match anything between the two.
Just 2S your remaining pair.

true

My opinion, however, was and is that a bit more solar wouldn’t hurt but maybe I was thinking about another thread at the time.
8 380W panels is 3000W so ‘wildhat guessing’ is 15kWh/day and wildhat guessing 30kWh might be low daily usage for Airconzona so more panels will pay themselves of reasonably sooner than many places might.