How much current does a 380 watt photovoltaic panel have

The voltage of a solar panel is the result of individual solar cell voltage, the number of those cells, and how the cells are connected within the panel. Every cell and panel has two voltage ratings. 1. Open Circuit Voltage (Voc) 2.. . To calculate the power (watts) provided by a solar panel we need to know the size of the electrical wave (volts) and the force of the current(amps) behind. . Watts is a measure of work. It is the amount of energy the panel can provide to your system at maximum solar exposure at 25º C. It is calculated by multiplying Volts at Maximum Power.