Yashar Naeimi - Isfahan University of Technology
Farzan Kooben - Isfahan University of Technology
Mohamad Hanif Moallem - Isfahan University of Technology

An important parameter that affects PV panel performance of a solar power system is the incident solar radiation with the panel or panel's area of exposure to the sun. The direction and tilt angle of a PV panel are two important factors in PV system design. This paper itself presents the calculation of the optimum installation angles for the seasonal adjusting of solar cell panels considering apparent motion of the sun. Daily adjusting for optimal tilt angle can increase the received energy from the sun. However, making trade-off is required because changing the panel angle daily costs lots of endeavour, so we designed seasonal angles for installation of panels.

Solar panel, Tilt angle, Solar modules installation, Solar panels orientation