Positive ground is a bit cheaper to manufacture cheaper and small mosfets apparently but this benefit is outweighed by other potential issues if connected to a trailer.
Positive ground solar panels.
How to ground solar panels the importance of grounding.
There are three main reasons for grounding in an off grid power system.
There are two types of ground.
Chassis or mechanical and electrical.
When you re installing a solar panel system it is extremely important to ground your solar arrays and your equipment.
Whether you re looking to install solar on pitched roofs flat roofs shingle metal tile or ground mounted solar panels positive energy solar has you covered.
Each solar panel system installed is custom to your home and your energy needs.
I ended up with a positive ground solar charge controller.
No idea but i do know that my pv system is not grounded at all at the panels it uses a transformerless inverter which gives no galvanic isolation between the mains and the panels so both groups of panels are floating.
At 20 these are a good value for a stand alone solar charge controller though for another 5 i would recommend getting the more common negative ground version of this model.
I have it all setup to charge the house battery and have my loads set up through a fuse block on the load pins of the controller.
The slide in camper has a chassis ground common to all the interior and clearance lights.
Not a problem as long as.
I am also powering some clearance lights with the truck trailer plug.
Safety v oltage transients and t h e sheer fact that they are required for some loads.
If you experience a large amount of lightening storms in your area failure to ground your solar system could result in damages to your product.