MEGAWATT 60-AMP INTRODUCTION
To be available starting the last week in January. $110.00
Forum Discussion
"PWM is not wire size sensitive between panels and controller. MPPT is."
Don, would you please explain your comments above in more detail.
Based on electro-physics, the less the voltage drop (due to wire resistance) along the lowest voltage wire route (in this situation between the controller's output and the batteries) the better ... for minimum energy waste. So, shouldn't one ALWAYS have the controller - regardless of controller type - next to the battery(ies) to keep wire resistance, and hence losses, low along this path?
Based on the above, the higher voltage wire route (in this situation from the panels to the controller) can stand a bit more resistance if needed so as to have the panels out a distance from the RV and controller ... but still keeping even the wire in this path as large as practical.
I'm not talking about getting by good enough on the least expense, here. I'm talking about optimization of captured energy if one can spend just a bit more for a portable solar setup. I believe that the on-the-ball folks that put roof solar systems on their RVs try to comply with what I'm saying above. Why not take into account the same considerations when putting together a small portable system - where energy capture efficiency is just as, or more, important?
Don, would you please explain your comments above in more detail.
Based on electro-physics, the less the voltage drop (due to wire resistance) along the lowest voltage wire route (in this situation between the controller's output and the batteries) the better ... for minimum energy waste. So, shouldn't one ALWAYS have the controller - regardless of controller type - next to the battery(ies) to keep wire resistance, and hence losses, low along this path?
Based on the above, the higher voltage wire route (in this situation from the panels to the controller) can stand a bit more resistance if needed so as to have the panels out a distance from the RV and controller ... but still keeping even the wire in this path as large as practical.
I'm not talking about getting by good enough on the least expense, here. I'm talking about optimization of captured energy if one can spend just a bit more for a portable solar setup. I believe that the on-the-ball folks that put roof solar systems on their RVs try to comply with what I'm saying above. Why not take into account the same considerations when putting together a small portable system - where energy capture efficiency is just as, or more, important?
