Need help choosing 48v all-in-one

[sunshine_eggo]

I'm at 65.5 degrees north latitude.

I would tend to agree with @12VoltInstalls that something closer to SE and SW might be more advantageous at that high of a latitude.

I have a current shunt to measure SoC for all charging sources and loads.

Good!

I'm not sure if the 3kw EG4 can track SoC using non-EG4 batteries

Only if they use some compatible protocol.

as I'm using the LiTime 230ah 12v 4x in series.

Perfect. I think I knew this, but I forgot...

Thanks again for your helpful advice!

Happy to help!

 

[12VoltInstalls]

I'm at 65.5 degrees north latitude.

Even more imperative imho
And the sun is in the south.

 

[sunshine_eggo]

Even more imperative imho
And the sun is in the south.

The DEEP south.

I visited Fairbanks in October, 2015 for a week. The days were short, but not crazy so, but I really couldn't get past the feeling that the sun was sitting on the horizon to the South the whole day. It was just weird. My concern is that due E or W will lose out on a LOT of potential where SE/SW will be far more productive.

 

[12VoltInstalls]

My concern is that due E or W will lose out on a LOT of potential where SE/SW will be far more productive.

It’s not as ‘narrow’ at 44.74 for sure. But the closer the sun is (midday) to where you face panels directly or off-angle improves performance especially as far north as the poster. E/W loses three ways at that latitude due to distance through the atmosphere, short sun-hour duration, and the square inches of exposure (from being off angle. Then there’s the reflective angle where some photons never reach the silicon.