(2) 12V Solar Panels....Series or Parallel?
I have (2) 140w 12V panels. The Bogart Engineering solar controller can operate on 12V or 24V input. Is there any advantage or disadvantage to wiring the panels in series for 24V rather than parallel ...
Forum Discussion
red31 wrote:Almot wrote:red31 wrote:
That's the benefit of PWM, no transformer to waist energy on small systems.
Has been debated many times, and the consensus seems to be that main benefit of PWM for small (but still multipanel) systems is the cost.
Only if you ignore the heating issue with MPPT. Our good experimenter BFL has shown this as well as those poorly disappointed with their MPPT performance in real life compared to expectations. Let's remember BFL has the back of his open to what ever breeze there is, roof mounted would be even hotter, NOTC comes to mind and the coefficient of lost peak power with cell temperature.
Ignore bucking losses if you like.
Ding Ding Ding!!!!!!!! Refreshing to say the least:B
