smkettner wrote:
reed cundiff wrote:
There are sizeable debates about going parallel or series:
Series gives greater voltage to controller and thus lower amperage and power loss. However, it has the disadvantage of losing almost all power if a portion of any panel is in shade.
Most panels have bypass diodes so you will not lose all power in series for shade on one panel.
The real disadvantage to series and its higher voltage is that you will get closer to the controller's rated Voc limit. To stay under that limit you could have to go series-parallel or parallel, or even split the array and use two controllers in parallel on the battery bank.