MEGAWATT 60-AMP INTRODUCTION

KJINTF wrote:
Put those portable 12 Vdc nominal panels in series
Get a Voc of say 40Vdc or there about - works for me
Reduce that I2R loss aka POWER LOSS
1/2 the current keeping the wire resistance the same obtain a very large reduction in the power loss
Watts aka power is what it's all about - a combination of Volts and Current

Very clearly/correctly stated, right to the point, and kept short on words, too!

Mathematically, the power dissipated (lost) in wiring is represented by the current flowing through it, squared, times the total resistance in ohms of that wire.

That means for portable panels to make full use of their power output, back at the batteries, one wants no more power loss along the wire coming from the panels than is absolutely necessary. This further means that one should minimize the current coming from the panels through the wire.

How do you do the above but still not reduce the power coming from the panels ... by increasing the voltage at the output of the panels ... bearing in mind that when doing this, electro-physics dictates that you get what you want ... current coming from the panels that is reduced proportionately.

To do this means one must put the controller (using one that can take the higher voltage from the panels) back at the batteries so the highest voltage possible back at the panels is what's driving the current from the panels.

So far I can't locate a pre-packaged portable system that is designed, and requires that, you to put it's controller back where the battereis are located.