How Solar Panel Wiring Works

One of the things you should learn more about is solar panel wiring, especially if you are thinking of building your own solar panels. By understanding more about the concept of wiring, making your own solar panel will be a breeze. This article will tackle how you can be an expert in solar panel wiring by giving you useful information on the three basic wiring configurations in solar panels, which include the series, parallel and the combination of the two.

How to Connect Solar Panel Wires in a Series Connection

It is easy to understand and perform the series wiring for solar panels.All you have to do is to connect one of the negative terminals of your solar module to one of the positive terminals of the next solar panel. One main thing to remember if you are using a series connection for your solar panels is that every voltage of one solar module will add up to that of the others. Here’s an example: your series connection will have a total voltage of 51 volts if you have three solar modules and each module produces 17 voltages . If you employ a series wiring to connect your panels, your amperage or current stays constant no matter how many you connect. If we were to use the situation described above, your panel will run at 51 volts at 5 amps, if your panels produce 17 volts at five amps.

Parallel Connection for Solar Panel Wiring

You can also use a parallel solar panel wiring to connect your panels. This type of wiring is just the opposite of the series solar wiring. If you are required to connect the negative pole to a positive pole for series wiring, you need to connect the positive terminal of one module to the positive terminal of another module when it comes to parallel wiring. Do the same for all the negative terminals. The opposite thing also happens for the total voltage and total current. In parallel circuit, the current adds ups while the voltages stays the same; while in series wiring, the current stays the same while the voltages are additive; The current is additive while the voltage stays the same in parallel wiring, while the voltages are additives yet the current stays the same for series wiring. Using the example above, of every solar module produces 17 volts using 5 amps, then the total circuit will have 17 volts at 15 amps.

Solar Panel Wiring: Series/Parallel  Connection

The third type is actually the combination of the first two solar panel wiring: the series/parallel wiring. This type of wiring is the most complicated because series and parallel connections are both used. You need more than two series connections of panels which you can connect using a panel configuration if you choose to make use of this type of wiring.

That completes the three basic configuration of solar panel wiring. Whether you want to increase the voltage or current of your solar panel should be the main consideration in choosing the type of configuration you will use. You can simply use the series/parallel solar wiring if you want to increase both. If you want to be sure on which wiring you should use, you might want to contact a solar panel wiring expert.

Posted under Build Your Own Solar Panels

This post was written by Noel D'Costa on July 30, 2010

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