Solar panels in series or parallel?
Hello All, It has been a while since I have been here. I need to come back more often. I have a 2016 fuzion 345. Love the tech but man does it eat power. I did put 6 6 volt batteries and that w...
Forum Discussion
you got it mixed up
parallel panels, if one panel has reduced/shaded output, the total amps will be reduced, not the voltage, the not shaded panel still has full voltage
in series panels, if one panel is partialy shaded the bypass diodes on the cell strings (in that panel) allow that panel to pass the amps from the other panels in the series, but the total voltage will be reduce
parallel panels, if one panel has reduced/shaded output, the total amps will be reduced, not the voltage, the not shaded panel still has full voltage
in series panels, if one panel is partialy shaded the bypass diodes on the cell strings (in that panel) allow that panel to pass the amps from the other panels in the series, but the total voltage will be reduce
time2roll wrote:
For the OP on shading...
These panels have bypass diodes and separate the panel in three sections. If one cell is shaded in one section then that section will produce virtually no power. However the bypass diode will allow all other sections or panels in series to pass through power. So with two panels you have six sections that either produce 10 volts each or they don't. Four sections with sun you get 40 volts etc.
With parallel any shading on one panel will drop the voltage and the entire panel will not contribute.
Filtered sun and shade will be some mix of all this depending on conditions.
The point is all power does not shut down with series. And parallel is not exactly perfect either. Shade hurts, look for a sunny place to park.
