=== Safety Measurements for Protection of Solar Arrays ===

If a voltage higher than the open circuit voltage is imposed on the cell’s terminal, a negative current will appear. In this case, the cell becomes a consumer. This phenomenon can be avoided using a diode. This diode is placed on each parallel branch of the solar network. The voltage drop across the diode must be as low as possible.<ref>http://www.goldstem.org/Swiss%20Cube/03%20-%20Power%20systems/S3-B-EPS-1-1-Electrical_Power_System.pdf </ref>