How To Tie Solar Panels Together

You need to understand how different stringing configurations impact the voltage current and power of a solar array.

How to tie solar panels together.

Charge controller couplers solar panel wiring solar panels wiring solar panels we re here today to give a quick demo of how to wire up two solar panels together in parallel using couplers. If you look at the arrows along the white and red lines they are showing the direction of flow. So if you connect two solar panels with a rated voltage of 40 volts and a rated amperage of 5 amps in series the voltage of the series would be 80 volts while the amperage would remain at 5 amps. Connecting in series means joining the positive terminal of a solar panel to the negative terminal of the next solar panel until eventually you are left with one free positive and one free negative terminal of the array which are to be connected to the input either of the inverter in case of a grid tied system without a battery backup or the charge controller in case of a grid tied system.

Solar panel wiring aka stringing and how to string solar panels together is a fundamental topic for any solar installer. Couplers provide a nice easy way to wire up two solar panels say if you are wiring up for a little cabin or a boat or an rv. If we have two solar panels with the same voltage but different wattage there is no problem. On the other hand if our two solar panels have both different wattage and different voltage then parallel connection is not possible since the panel with the lowest voltage would behave like a load and would begin to absorb current instead of producing it with the.

The white line is the negative connection all 3 panel negative wires are just simply tied together and to the wire that runs back to the negative connection on the charge controller. When solar panels are wired in series the voltage of the panels adds together but the amperage remains the same. In this first image there are 3 solar panels. This makes it possible to select an appropriate inverter for the array and make sure that the system.