Solar component(s) help needed
I keep bouncing back and forth on what to get and need someone to point me in the right direction ... please. I have a new TT toy hauler. All LED lights, don't want to run 120AC stuff. Have (2) 6v ...
Forum Discussion
For a fixed set of solar panels the MPPT will harvest more.
However if the extra money was spent on an extra panel with PWM the yield could be higher.
Larger systems tend to be MPPT because as the wattage grows users have a tendency to use lower cost 24v panels designed for home or commercial grid tie installations. Then suddenly you need MPPT to convert 24v to 12v.
Also if MPPT gives you an extra 5% to 15% that is not much on 100 watts but starts to add up at 500+ watts. The extra only happens during Bulk charging mode. Once in Absorption you have excess power either way so no benefit.
MPPT typically includes superior programming, remote voltage sense, temperature compensation, etc. Lowest cost PWM do not have these features. To really compare price it is best to compare a PWM that has the same features as the MPPT.
MPPT = Maximum Power Point Tracking
PWM = Pulse Width Modulated
However if the extra money was spent on an extra panel with PWM the yield could be higher.
Larger systems tend to be MPPT because as the wattage grows users have a tendency to use lower cost 24v panels designed for home or commercial grid tie installations. Then suddenly you need MPPT to convert 24v to 12v.
Also if MPPT gives you an extra 5% to 15% that is not much on 100 watts but starts to add up at 500+ watts. The extra only happens during Bulk charging mode. Once in Absorption you have excess power either way so no benefit.
MPPT typically includes superior programming, remote voltage sense, temperature compensation, etc. Lowest cost PWM do not have these features. To really compare price it is best to compare a PWM that has the same features as the MPPT.
MPPT = Maximum Power Point Tracking
PWM = Pulse Width Modulated
