Solar Controllers--Don't be a Sucker! :(
Just got to say it again, how it is we are sitting here for five months off grid on solar with no problems at all (third season on solar like this), using the non-programmable, non-MPPT, solar control...
Forum Discussion
Mark, the mppt manufacturers got you well trained. Your calculation has several errors. The pwm scenario does not use Imp (5.70A), but rather a current that's very close to Isc (6.10A). That means the pwm power output isn't your calculated 77.52W, but 82.0W.
YES, I agree Sal! My numbers and math are intended to be a "simple description" of P=IxV and I stated that the numbers assume perfect conditions/cold panels/no efficiency losses, etc. The point is to illustrate how MPPT can make more power available than PWM under certain conditions... which is the BFL13 had asked; The hours are the same and the amps the same, so how can you have more AH??
Hmmm 7%... that sounds pretty good to me!
:C
-Mark
