A given solar cell has the following specifications: Isc = 4 A and Voc = 0.7 V. Consider that 20 identical cells with the above specifications are to be interconnected to create a PV module. What is the open-circuit voltage of the PV module if all the solar cells are connected in a series configuration?

• A. 0.7 V
• B. 12.6 V
• C. 11.2 V
• D. 14 V

Answer: (D)

For M no. of series configuration of solar cell,
Open circuit voltage of PV module= M*Voc
= 20*0.7
= 14 V
Short circuit current of PV module = M*Isc
= 20*4
= 80 A