Design and Implementation of Double-axis solar Tracker with astronomical oriented for Sefiddasht steel complex

One of the most important of challenges in photovoltaic field is earning more energy from a unit area. Utilization methods of photovoltaic panels in terms of earning sun energy are fixed panel system and solar tracker system that it contains two types of one-axis and Double-axis. One solution for increasing earned energy is using solar tracker that improves system efficiency, reduces size of system and also price per KWh. The amount of energy strongly depends on geographical location, weather and type of tracker. More sunlight and low dust, smoke and cloud, improve the efficiency of tracker. It’s expected that using solar tracker improve efficiency by 30 percent in winter and 40 percent in summer. In this paper according astronomical data in target site, optimum angle for solar panel tilt is calculated so dizzy problems in solar trackers with light detectors in cloudy and dusty weather are removed and is implemented according to improved efficiency. Homer software are used to simulate the conditions.