pianotuna wrote:
Vintage465,
I was working with the numbers you posted. BFL13 has been helpful to many folks here and most of us only want to help folks out. Remember, the printed word doesn't allow for inflections--so please do listen calmly.
How did you decide on 450 watts of panels?
Will the install be fixed or do you wish to tilt (I'm firmly the fixed camp).
I decided on 450w of panels because I have 2 each Samlex 150w panels. I have real estate on the roof for one more matching panel. The two existing are fix as will the third one. It'll be the 3-150w, and probably a Morningstar PS-MPPT-40,charge controller to replace my Samlex 30a controller. The three 150's are non negotiable and the PS-MPPT-40 provides the flexibility to go either series or parallel without negative results. From the start, all I was looking for was:
1. Can one run on panel parallel to a pair in series. Answer came back "no". Perfect.
2. One poster provided the "daisy chain" example that clearly explained how you put 3 panels in series. Perfect.
3. I asked if the amps multiplied by 3 like the volts do. You answered no, as did other. Perfect.
4. That's all I needed.
5. Thank you for your patience.
