The parallel connection allows to increase the current keeping the same voltage.
How do you wire solar panels together.
When you wire in series there is just a single wire leading from the roof for each string of solar panels.
If we have two or more solar panels with the same voltage but with different current it is not possible to wire them in series.
Wiring solar panels in series.
For more information visit the page how to wire solar panels in parallel.
The positive wires are connected to a positive connector within a combiner box and the negative wires are connected to the negative connector.
When a solar installer wires your solar panels in a series each panel is connected to the next in a string the total voltage of each solar panel is summed together but the amps of electrical current stay the same.