Connecting Two Arrays Of Solar Panels

If we have two solar panels with the same voltage but different wattage there is no problem.

Connecting two arrays of solar panels.

The main advantage of this configuration is reliability. Connecting solar panels in series. For example a 110ah battery should never be connected to a panel more than 11w without a solar controller and if you are using a solar controller you do not need a blocking diode. 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.

Just like a typical battery you may be familiar with solar panels have positive and negative terminals. They can be wired in parallel. 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. 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.

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.