Solar voltage drop calculations, new question
Using a calculator: I like this one When figuring wire size from panels to controller for "12v" panels in parallel and PWM controller, we should use 20v as our input, right??? I see writeups wher...
Forum Discussion
BFL13 wrote:
this calculator shows "the voltage at the end"
http://www.calculator.net/voltage-drop-calculator.html?material=copper&wiresize=2.061&voltage=12&phase=dc&noofconductor=1&distance=60&distanceunit=feet&eres=8&x=42&y=5
Yeah but does it apply here? It seems like there are volts to lose when the panels can put out 22v and you only need 13-15 at the controller. I know you don't want to fritter the extra volts away but I'm interested in how to figure out the true effects on the bottom line.
