Which is better, Series or Parallel panels
In this situation, which is better, series or paralleled panels ?
Forum Discussion
Ignoring Vmp vs. Voc, etc. (use whatever numbers you like, the results will be similar):
97w is about 3X 32w, however, it is amps into the bank that really matter.
Using mppt/series, set at say 14.6Vabs... 32w/14.6v = ~2.2a going into bank
Using pwm/parallel, set at 14.6Vabs... 4.47 x 20% = ~0.9a + 4.47a = ~ 5.4a, so about 2 1/2 X as much.
Using mppt/parallel, set at 14.6Vabs... 97w/14.6v = ~6.6a, about 3X as much.
Of course, the diode issue could change all that, but parallel appears to have it, hands down.
97w is about 3X 32w, however, it is amps into the bank that really matter.
Using mppt/series, set at say 14.6Vabs... 32w/14.6v = ~2.2a going into bank
Using pwm/parallel, set at 14.6Vabs... 4.47 x 20% = ~0.9a + 4.47a = ~ 5.4a, so about 2 1/2 X as much.
Using mppt/parallel, set at 14.6Vabs... 97w/14.6v = ~6.6a, about 3X as much.
Of course, the diode issue could change all that, but parallel appears to have it, hands down.
