Open Circuit Voltage (Voc): This is the maximum voltage your panel can produce, usually measured on a bright, cold morning. These cells are connected together in series and parallel, and a collective voltage is obtained, which is called solar panel voltage. Just as too much water pressure can burst a pipe, too much voltage can damage your power station. It's worth noting that the solar panel voltage depends on various factors, including the number of solar cells used in series, solar cell. . Solar panel voltage plays a significant role in their ability to harness the sun's energy. You know, these voltages come in different forms and are affected by a variety of factors.