Photovoltaic Energy Prediction Analysis Considering Tilt and Azimuthal Orientation in Brazil

Paiva, G., Pimentel, Sérgio Pires, Marra, Enes Gonçalves, Alvarenga, Bernardo Pinheiro de

ISES Solar World Congress 2015 · Daegu, Korea · 2015-11-08
Published by International Solar Energy Society (ISES)
DOI: 10.18086/swc.2015.05.24

Abstract

This article is about the analysis of photovoltaic (PV) potential generation in the city of Goiania, Goias, Brazil. The main objectives of this work are to predict reliably the energy production considering tilt and azimuthal orientation in this location and analyze the energy behavior and system performance along a simulation process. With the use of PVsyst, an example system of 2.5kWp of polycrystalline silicon had been considered for simulations of 1387 possible tilt-orientation sets in 5° scale. The annual energy production and the system Performance Ratio were obtained. As a conclusion, 180 of the total configurations were considered acceptable for payback time projects. The optimal energy generation set found differs from typical slope equal to location’s latitude and orientation to north and was in 25° tilt and -5° azimuth, still leading to over 8 years payback time considering. As energy behavior, the system sensibility for azimuthal deviation is higher as higher is its plane tilt.

Keywords

Energy prediction, Pv systems, Pvsyst.

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