Edifício energia zero: estudo de caso de uma incubadora de empresas na UTFPR campus Campo Mourão

Abstract

The increase in the world population and the consumption of fossil fuels have been increasing the concern of governments around the world about the production and use of clean and renewable energy. The European Union, for example, will require the construction of buildings that are energy efficient and that produce part of their consumed energy as of January 1st, 2021. Thus, zero energy buildings, which produce all the energy they consume throughout the year, may become normal worldwide, so that energy demand is reduced. In order to analyze the technical and economic feasibility of a zero-energy building in Brazil, where this type of construction is not common, a case study was made through the elaboration of a project for an institutional building that will be used as a business incubator built within the UTFPR Campo Mourão Campus. The preliminary project that was used to prepare the final project used containers as a structure, and this aspect was maintained, as it further promoted sustainability. The preliminary project was then modified and improved, the electricity consumption of the building was estimated based on the uses of the facilities and the equipment to be installed, and thus it was possible to dimension the appropriate solar energy generation system so that it reaches the zero energy building rating. The solar energy generation system was then budgeted and its economic viability was analyzed using three parameters: NPV, IRR and discounted payback. The NPV found was greater than zero, the IRR was higher than the defined MARR and the discounted payback indicates that the investment will have a financial return in 5 years. Thus, the implementation of a power generation system that would allow the studied business incubator to be considered a zero-energy building proved to be technically and economically viable.