mppt vs pwm
Hi, A nice little video comparing mppt vs pwm with the batteries in bulk mode. mppt vs pwm
Forum Discussion
Hi,
The reputable sources seem to say that MPPT works in bulk mode only.
If this is so, then during the day, if loads create a situation where the controller "sees" a bulk load, MPPT wins.
The question is by how much. Salvo is now saying it may only be 5%. Other sources say up to 21%. Pretty much everyone thinks 40% is pie in the sky (that's Canuck for "salesman speak").
MPPT wins at panel temperatures over 75 C (167 F). BFL13 sees temperatures of 51 C (~129F). I see winter temperatures of -37 C (~-34F).
So what works for me doesn't "fit" well for BFL13.
Folks need to make this a "dollars and cents" decision. If they are going to "big wattage" MPPT may (or may not) be the right choice.
I only know of one person who seems to be dissatisfied with their system, but perhaps someone sold them some of that "pie", instead of a good solid solar system.
The reputable sources seem to say that MPPT works in bulk mode only.
If this is so, then during the day, if loads create a situation where the controller "sees" a bulk load, MPPT wins.
The question is by how much. Salvo is now saying it may only be 5%. Other sources say up to 21%. Pretty much everyone thinks 40% is pie in the sky (that's Canuck for "salesman speak").
MPPT wins at panel temperatures over 75 C (167 F). BFL13 sees temperatures of 51 C (~129F). I see winter temperatures of -37 C (~-34F).
So what works for me doesn't "fit" well for BFL13.
Folks need to make this a "dollars and cents" decision. If they are going to "big wattage" MPPT may (or may not) be the right choice.
I only know of one person who seems to be dissatisfied with their system, but perhaps someone sold them some of that "pie", instead of a good solid solar system.
