Connecting Two Arrays Of Solar Panels

In case when one or more solar panels are affected either by shading or by other damage caused during the manufacture or along the life cycle of the system the performance of other solar panels in the array is not affected because the wiring connection makes every single unit independent from the other one.

Connecting two arrays of solar panels.

If we have two solar panels with the same voltage but different wattage there is no problem. The rule of thumb when connecting solar panels directly to a battery is never connect more than c 10 watts where c is the capacity of your battery. They can be wired in parallel. When solar panels are wired in series the voltage of the panels adds together but the amperage remains the same.

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. Connecting solar panels in series. Stringing solar panels in series involves connecting each panel to the next in a line as illustrated in the left side of the diagram above. Just like a typical battery you may be familiar with solar panels have positive and negative terminals.

The main advantage of this configuration is reliability.