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obiwancanoli's avatar
obiwancanoli
Explorer
Aug 20, 2020

MPPT Controllers

As I continue the learning curve, I'm finding the answers I get always lead to 2 more questions... funny how that is...

I've been working backwards in developing my solar needs, going from panels to mounting to wiring, then controller, and that's where I'm at now... my research shows many different types and brands, some with meters and displays, others with LED's... I'll need to upgrade the 30A PWM to 40+A. I'm thinking of adding another 2 panels 340W, 9.1A ea.

For efficiency and convenience' sake, I like having a display that's easy to use, and thorough in it's functions.

What's your experience? Recommendations? Tips?

Thanks!
Michael
  • Your energy survey, either actual use or desired use, indicates what AH use on an average day? That number (times 1.5 or 1.75) determines battery size. Then comes necessary panels at 1 solar watt (or 1.5) per battery AH, then an adequate controller. Why are you going backwards?