Evaluation of the Optimum Tilt of a PV Array Using Maximum Global Insolation Technique

摘要

The photovoltaic (PV) is considered to be the most promising energy source in many applications, due to its safety and high reliability. But, the initial high cost of the PV arrays and the large areas that require necessitate the optimum use of them. One of the solutions that optimize the array performance is to what extent the array tilt should be adjusted such that the incident insolation on the array becomes as large as possible. In this paper a new technique, which maximizes the incident solar insolation at solar noon on the tilted PV array, is proposed and developed. The monthly mean values of the solar insolation incident on a horizontal surface is calculated using a statistical methods. Also, a comparison between the proposed technique and the most common one is studied. The results indicate the superiority of the proposed technique.