Install A Blocking Diode Solar Panel

Learn how and why blocking diodes and bypass diodes are used.

Install a blocking diode solar panel.

Blocking diodes installation instructions sm 335 issue c 03 11 05 marlec engineering co ltd blocking diodes a blocking diode is required in each series string of solar modules between the modules and regulator battery to prevent current flowing back through the modules when the modules are shaded or during darkness. Diode and unidirectional flow of current. For solar panels we recommend you put one blocking diode on each solar panel inside an abs project box the diode needs to have a voltage and amperage rating above that of the panel. A blocking diode and bypass diode are commonly used in solar energy systems and solar panels.

This video shows how to install a diode to any solar panel to prevent discharging. In short as diode only passes current in one direction so the current from solar panels flows forward biased to the battery and blocks from the battery to the solar panel. Not only will that panel not be. In simplest terms a diode can be understood as a two terminal electronic device which allows electrical current to pass in one direction.

Blocking diodes will be of benefit in any system using solar panels to charge a battery. Now let s consider what happens if one of the panels in the above diagram is shaded. Like us on facebook.