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How to Wire Solar Panels in Series

There are three ways to wire a solar panel array; series, parallel, and series-parallel. This blog post is not going to cover when to use which one, but this blog post will show you, once you’ve made that decision, how to wire your solar panels in a series array.

Wiring solar panels in series simply means that you are going to connect the positive wire from one solar panel to the neighboring solar panel. The remaining positive and negative wires on the ends of the array will then be connected to the charge controller.

Here is a video that will guide you through this process and below the video, I have several examples of how to wire two to six solar panels in series.

How to Wire Solar Panels in Series Video

How to Wire Two Solar Panels in Series

How to Wire Three Solar Panels in Series

How to Wire Four Solar Panels in Series

How to Wire Five Solar Panels in Series

How to Wire Six Solar Panels in Series


Richard

Friday 18th of November 2022

Thanks for all the useful information helps a lot

Peter S

Monday 3rd of October 2022

Do you need to add a diode when wiring panels in series? I've heard about a 'shade effect' Thanks!

Salar

Tuesday 20th of September 2022

I got 10 - 300W panels, total of 3000W. Can I connect them all in series ?

Kim

Monday 31st of January 2022

What's the max solar panels I can connect in series to a 40a mppt? I live in Arizona.

Joe

Saturday 18th of December 2021

Is it better to have a 100 foot cable from the panels (DC) to the inverter or from the inverter (AC) to the load?

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