When solar panels are wired in parallel the positive terminal from one panel is connected to the positive terminal of another panel and the negative terminals of the two panels are connected together.
How to parallel wire solar panels.
If we have two solar panels with same voltage and power the connection will be very simple.
In simple words similar terminals are connected by jumper wires.
The positive wires are connected to a positive connector within a combiner box and the negative wires are connected to the negative connector.
As clearly visible in the picture it will be enough to wire the positive pole of one panel to the positive pole of the other one and then wire the negative pole of one panel to the negative pole of the other one.
Parallel connection of two identical solar panels.
The solar panels are usually designed that they can handle being backfed from one panel but if you have a whole bunch you do run the risk of ruining your solar panel.
In our demo we have an mc4 compatible locking connector.
The first thing to do is figure out what kind of connectors you ve got on your solar panel.