An array of solar cell modules of the solar PV electricity plant installed on the rooftop of the Engineering & Sciences building at ITC Binghamton University is mounted in the due north-south direction with a slope of 35°. The location coordinates of ITC in Binghamton, NY are 42.1° N and 75.9° W.
(a) Calculate the solar radiation power (Smodute) over the modules on Feb. 18th at 13 hours solar time (LSoT). The solar radiation power measured at the horizontal surface at the solar modules site was 480 W/m².
(b) A few solar modules of this plant were mounted at an azimuth angle (p) of 215° measured from the due north direction. Calculate the solar radiation power on these modules.