Stringing solar panels in series involves connecting each panel to the next in a line as illustrated in the left side of the diagram above.
How to wire 2 solar panels in series.
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.
Just like a battery solar panels have two terminals.
What does it mean to wire solar panels in series.
Moreover you can power up the dc load directly connected to the dc output terminals in the solar charge controller.
To wire two or more solar panels and batteries in series simply connect the positive terminal of solar panel or battery to the negative terminal of solar panel or battery and vise versa respectively as shown in the fig below.
When you connect two or more solar panels like this it becomes a pv source circuit.
When you wire in series there is just a single wire leading from the roof for each string.
One positive and one negative.
Nonetheless it is possible to wire them in parallel.
The parallel connection allows to increase the current keeping the same voltage.
Wiring solar panels in series.
To solve this problem and to optimize the energy performance of the entire system it is advisable to wire two panels in series obtaining a doubling of the voltage and then wire in parallel the three pairs previously wired in series so as to have doubled the voltage and tripled the current.
When you connect the positive terminal of one panel to the negative terminal of another panel you create a series connection.