Wasted power from Solar Panel by Reg

NorthGuy

Joined Jun 28, 2014
611
What if i put simple lamp? or Led with resistor?
Resistor has a straight I-V curve starting from 0 - from Ohm's law V = I*R.

If you draw this straight line, it'll cross the Mike's green line somewhere. The crossing point determines the voltage and current you get with the resistor. If you find a good resistor it may go right through the MPPT.
 

MikeML

Joined Oct 2, 2009
5,444
The resistor into which that panel can put the maximum amount of power is found by dividing the Vmppt by Imppt, or 17.9V/1.11A = 16.13 Ohms.
 
Top