If the dark saturation current of a solar cell is 1.7 x 108 A/cm², temperature of the cell is 27 °C and the short circuit density is 250 A/cm², calculate Vocv, Vmax, Imax, Pmax and efficiency max. What cell area is required to put an output of 20 W when the radiation is 820 W/m²? PV system is required to produce 250 W at 24 V. Using the solar cells according to the given question, working at the max power point, if each cell has a 9 cm² area.