Solar wiring

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There are a few different ways that you can complete the solar wiring of your solar panels. You can use a parallel solar wiring or a series solar wiring. Both will work, but there are differences between the two.

Parallel solar wiring is the type of wiring that connects positive terminals to positive terminals and negatives ones to negative. When you use this type of solar wiring, your voltage remains the same, but your amperage is the sum of the how many panels are connected (you would add the amps of all of the panels).

For example, if you have three 12 volt/ 3.5 amp panels, and you use parallel solar wiring, then you will end up with 12 volts at 10.5 amps. If you have five of these panels, you will produce 12 volts at 17.5 amps.

Series solar wiring, on the other hand, is when the positive terminal of one panel is connected to the negative terminal of another. With this type of solar wiring, the voltage equals the sum of those two panels, and you do not add the amperage together. Rather, the amperage is the same as one panel.

In other words, three 12 volt/3.5 amp panels that were connected by series solar wiring would create 36 volts at 3.5 amps. Five 12 volt/3.5 amp panels wired together in series form would create 60 volts at 3.5 amps.

So, depending on the type of solar wiring you use, you can increase your voltage and/or your amperage. You can use series/parallel solar wiring to increase both. Perhaps you have a 48 volt system that you need to match… you can achieve that voltage by using series wiring.

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