Funny enough your thinking about arrays facing east and west to catch the majority of rays is exactly what I am after arrays wise. Next week I start to work on this very issue. 6 panels (100w 22.56VOC 5.50Isc) East; 6 panels (100w 22.56VOC 6.56Isc) South; facing, 6 panels (100w 22.50VOC 5.50Isc) West. These fused arrays would feed into busbars, then fused (2) MPPT'S, feeding their own respective battery banks. Bank #1 Flooded; Bank#2 Li.
Basically, the bus bar set up is a collection point of energy to draw from for the mppt's.
It does not surprise me at all to be thinking this way.
The work space for my van electrical shop is just some storage units that I rent. There are no utilities of any kind, so it really is just like being completely off grid. It isn't ideal, but it works ok.
My vehicle has solar on top facing "up", so it can capture that power.
I have solar panels mounted on 2 test stands that I can move around and test various conditions, solar / battery combinations.
Customers like to mount their own solar panels (which is fine with me) but I can't really control what they will set up so I have to be able to deal with a variety of setups.
The smaller power systems that I build are 24 volt and the larger ones are 48 volt. Some are AGM and some are LiFe - mostly depending on the weather conditions that the vehicle will experience.
The power systems that I build are first built on a table, then tested using the "test stands" prior to installing in their van or shipping to them.
The "test stands" are just some good quality metal rack shelves on large wheels that I can face various directions as needed.
The blue panels are solarland poly, the black ones are solarland monos.
It does not always look this organized.
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As far as the bus bars, most off the shelf bus bars (like the blue sea ones) are rated for max 32 volts. Look at isolators as a way to deal with the higher voltages in the array. I can send some to you if that helps. Just send a pm to me.