I have a 100/20 Smart Solar controller and only 2ea 100w panels. I want it to operate at full capacity by adding panels. Due to conditions on my property I need a longish cable run from my panels to the controller. High current and long runs seem to be expensive due to the cable thickness required. I want to add enough panels, in series, to get close to 100v but am worried about damage to controller. How can I “over voltage” the panels and reduce that voltage at the controller. For example, I envision a voltage limiter of some type. Say feed 150v from panels in and get 100v max out to put into controller. Is such a thing possible? Also, why is the PV input voltage so low for the controllers? Sorry for my ignorance, and thanks for the explanation.
Maxx