Rogue 20A MPPT Controller Question
Maybe Marc will chime in but maybe this question is generic enough that others might answer. I was perusing the Rogue 20A manual and saw the 320W limit for 12V systems. I'm wanting to put two 150W pan...
Forum Discussion
Hi mena
MPPT controller rating = Input Power (w/ a max voltage limit) & Output Current
When the input power rating is exceeded (on quality controllers) typically the integrated "Processor controlled TRACKING function" is used to reduce the input power level, which then limits the output current to within the system specifications.
Many folks run a higher power array than the controller is rated for with out issues.
I suggest you do NOT
Instead oversize the controller
This oversize allows for -
Future array expansion
No wasted energy when the "clipping" occurs, wasted $ on power that is not used
Reduced heat - higher the current higher the internal heat generated
Longer life from running cooler
Generally just a better system design
MPPT controller rating = Input Power (w/ a max voltage limit) & Output Current
When the input power rating is exceeded (on quality controllers) typically the integrated "Processor controlled TRACKING function" is used to reduce the input power level, which then limits the output current to within the system specifications.
Many folks run a higher power array than the controller is rated for with out issues.
I suggest you do NOT
Instead oversize the controller
This oversize allows for -
Future array expansion
No wasted energy when the "clipping" occurs, wasted $ on power that is not used
Reduced heat - higher the current higher the internal heat generated
Longer life from running cooler
Generally just a better system design
