A 4-module array has two south-facing modules in series exposed to 1-sun insolation, and two west-facing modules exposed to half-sun insolation. The 1-sun I-V curve for a single module with its MPP at 4A, 40V is shown below. Draw the I-V curve for the 4-module array under these conditions. What is the output power (W) at the array?s MPP?

1-sun 1880 South facing West facing 2-Sun 8 2 Current (A) 6 2- 0 0 1-sun, 1 module MPP 4A, 40 V 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 Voltage (V)