Análise do potencial de geração fotovoltaica usando metodologia building information modeling

Abstract

This paper analyzes the potential of photovoltaic (PV) systems in three buildings of the Federal University of Ceará (UFC), using Building Information Modeling (BIM). The research presents constructive and sustainability analysis, involving technical details, PV sizing calculations, shading and financial attractiveness study, and comparison with an energy currency related to carbon credits. Revit software is used for the volumetric modeling of the buildings and for the shading studies, where the effect of shading is simulated during three times of the day and in four equally spaced months of the year. The proposed methodology represents a new level in the integration of engineering projects, creating a platform for the simultaneous development of construction and financial details. RETscreen software is used to measure the investment for each building, the amount saved, and in how long the investment pays off. Thus, it is observed the possibility to implement 3.612 PV modules in the Instituto de Cultura e Arte (ICA), 758 in the Centro de Convivência and 1.596 in the Restaurante Universitário (RU). As a result, the units can generate 401,65 MWh, 1.913,94 MWh and 845,69 MWh respectively. A return on investment is estimated in six years: R$ 5,036,354.00 for the ICA, R$ 1,058,318.00 for the Centro de Convivência and R$ 2,211,902.00 for the RU. A carbon credit analysis is also carried out, resulting in 293 tons of CO2 not being released into the atmosphere.