Difference Between Series And Parallel Connection Of Solar Panels

The connection of multiple solar panels in parallel arises from the need to reach certain current values at the output without changing the voltage.

Difference between series and parallel connection of solar panels.

When you do a series parallel connection on your solar system you need to parallel two or more equal sized series strings. The wiring of solar panels has a significant impact on how they are going to perform. With parallel solar panels 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. Every time you group panels together in series whether is 2 4 10 100 etc.

We often hear the installers talking about the connection of solar panels in series or parallel but many of us not related to the technical terms do not understand the difference between these designs and therefore do not understand the impact our decision has on the overall life cycle of the system. Before we talk about the wiring of solar panels let s do a quick revision. For example if you installed 5 solar panels in series with each solar panel rated at 12 volts and 5 amps you d still have 5 amps but a full 60 volts. This is called a string.

In fact by wiring several solar panels in series we increase the voltage keeping the same current while wiring them in parallel we increase the current keeping the same voltage. This involves creating two series then wiring those two series in parallel. This kind of a lowering of current would of course cause a loss of power output and eventually loss in equipment efficiency. A series parallel connection is accomplished by using both a series and a parallel connection.

Typically solar panels of specific or matching current needs to be connected with each other in series. Let s see what i have in store for you. Comparing solar panels in series vs. When doing a series parallel connection you are essentially paralleling 2 or more equal strings together.

This is sort of a hybrid between the two systems and may be appropriate if you plan to install four or more panels. Should you connect a 3a solar panel to a 3 5a solar panel the all round current will probably be pulled down to 3a. Comparison between parallel and series circuits. If you decide to apply a mixed connection it s practical your solar array to comprise an even number of panels a multiple of 2 for example 4 panels 2 in series and 2 in parallel or 6 panels 3 in series and 2 in parallel.

When installing solar panels in series the voltage adds up but the current stays the same for all of the elements. Parallel wiring of solar panels in detail.