Quote:
Originally Posted by rickst29
To be any more precise, we need to know your panel's MPP "voltage" and current". (I'm assuming a 100% efficient 'MPPT in this simple calculation. If you're using only a "PWM" type solar controller, you will lose around 15-20% of the panel power at the controller).
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Wait, WHAT!!!
IF I'm using a PWM controller I'm losing 15/20%? WTH!
If I'm losing that much and the panel is lying flat (and only being 70% effective) that's too much to lose!.
Besides price what is the difference between an MPPT controller and a PWM?