For the resultingmeasured values obtained by shadowing on the light source that are plotted in Figures 4, 5, 6 and 7, regression curves are plotted and equations are calculated whereas a mathematical relation is obtained for area with
respect to the solar module’s short circuit current. The equation obtained for opaque rectangle areas’ diagram is given in (4). Using this linear equation, short circuit current values varying with area is calculated and given in Table 1 for
comparison with the measured values