Usefulness Of MPPT Technology
This isn't a trick question. I wish to take a "Short Course" in the reality versus hype of MPPT control... Users who have MPPT and can report real-life experience... Let's say I get a pair of panel...
Forum Discussion
i have a blue sky 2000e MPPT controller, it is possibly one of the oldest MPPT controllers around
set points can be adjusted by the POT's on the inside
36v panels and above is where you will really see the advantage MPPT where the output amps will be higher than the panel rating and the controller can maintain the bulk voltage set point
my low voltage panels don't allow for as much AMP gain above rating, as higher voltage panels, but the MPPT does mean the bulk voltage/peak voltage is maintained, even at low amps, so i get a better top off than PWM
my 2000e has a peak voltage rating that is NOT high enough to allow for series panels, if i ever change controllers, i will get either an 'Outback'
or
one of the new cheaper high voltage chineese controllers that have been posted in this forum
IF you get a 90v controller you series the 36v panels =72v
but the 50v mark 'for series panels' is Not attainable unless you go with lower voltage panels
my 505w of low voltage panels , Flat on my RV roof
collected 70.78 AHr , 957.5 watt hrs, Thursday, with a PEAK 14.47 AMPS / 195.1watts
this in smoggy calif, NOT QZ Az
set points can be adjusted by the POT's on the inside
36v panels and above is where you will really see the advantage MPPT where the output amps will be higher than the panel rating and the controller can maintain the bulk voltage set point
my low voltage panels don't allow for as much AMP gain above rating, as higher voltage panels, but the MPPT does mean the bulk voltage/peak voltage is maintained, even at low amps, so i get a better top off than PWM
my 2000e has a peak voltage rating that is NOT high enough to allow for series panels, if i ever change controllers, i will get either an 'Outback'
or
one of the new cheaper high voltage chineese controllers that have been posted in this forum
IF you get a 90v controller you series the 36v panels =72v
but the 50v mark 'for series panels' is Not attainable unless you go with lower voltage panels
my 505w of low voltage panels , Flat on my RV roof
collected 70.78 AHr , 957.5 watt hrs, Thursday, with a PEAK 14.47 AMPS / 195.1watts
this in smoggy calif, NOT QZ Az
