Estimation of optimum tilt angles of grid-tied pv solar system via pvsyst program in Baghdad-Iraq

الملخص EN

The current system is the grid-tied PV solar system.

CIGS is the thin film technology (Second Generation).

The acronym of CIGS PV solar module comes from: Copper Indium Gallium Selenide.

The system which is simulated to find the performance, optimum tilt and orientation angles is 5 kWp CIGS PV Solar system installed at al Mansour Company, Iraq-Baghdad (Latitude 33.3 º N, Longitude 44.4 º E and 34 meters above the Sea level).

In this work is determined the amount of electrical energy generated, solar irradiation and performance ratio by PVsyst simulation program through changing the orientation (Azimuth Angle) toward the East, West and South.

The optimum tilt angles and performance ratio (PR) when the monthly adjustment is used are (45º-55º) and 87.5% respectively for January, February, November and December, while (30º-33º) and 84.5% respectively for the march, April, September and October, (0º-15º) and 80.8% respectively for May, June, July and august.

The optimum tilt angles when the seasonal adjustment is used are 15o for the summer season and 45º for the winter season.

In the terms of the optimum fixed angle throughout the year, the optimum fixed tilt angle is 30º.

The optimum azimuth angle is (0) where the loss/opt is zero.