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TOTAL POINTS 2 1

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TOTAL POINTS 2 1. Question 1 At 10am, the view of the sun from your solar farm is obscured by thick cloud. The DNI drops to 300 W/m2 and the diffuse irradiance is 150W/m2. Your panels are oriented due south and mounted at a tilt angle of 40°. Using this information and the graph below showing the position of the sun, calculate the total irradiance on your panels. Give your answer in W/m2 (integer number). Question 2 The cells in the panels that make up the modules in the solar farm of Part 1 have been characterized as having the following PV parameters (tested under AM1.5 conditions): JSC=40mA/cm2, FF=75%, VOC=0.7V. For illumination conditions giving 700W/m2, calculate the output power density of your cells (mW/cm2). You may assume that FF remains the same, but VOC and JSC do not. Also, assume nkT = 25 meV and that J0 remains constant. (Required format: xx.xx)

Note: Just question 2 need answered