The positive wires are connected to a positive connector within a combiner box and the negative wires are connected to the negative connector.
How to parallel wire solar panels.
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.
A solar panel or battery can be connected in parallel by connecting the negative terminal of first one to the negative terminal of second one and positive terminal of second one to the positive terminal of first one.
If we have two solar panels with same voltage and power the connection will be very simple.
To wire two or more solar panels and batteries in parallel simply connect the positive terminal of solar panel or battery to the positive terminal of solar panel or battery and vise versa respectively as shown in the fig below.
In our demo we have an mc4 compatible locking connector.
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.
The first thing to do is figure out what kind of connectors you ve got on your solar panel.