Indicador de eficiência energética para auxiliar a tomada de decisão de investimento em projetos de eficiência energética em instituições de ensino

Abstract

This paper presents an Energy Efficiency Indicator, with no intention to assist the Decision Making related to investments in Energy Efficiency projects in Higher Education Institutions (IES). The objective is to support the Decision Maker (Rectors, Pro-rectors and/or Directors) in the projection of electricity consumption and the corresponding financial resources necessary for investments in extensions. The research sample is of 25 Federal Institutions of Education of the south of Brazil, of which the following data were considered: the consumption of electrical energy, the number of enrolled students and the constructed area, obtained through public documents available on the Internet. For the definition of the model that correlates the independent variables (students enrolled and built area) to obtain the value of the dependent variable (energy consumption), the statistical method of Multiple Linear Regression Analysis is used, with support of the computational tool IBM SPSS Statistics Base 23 for Windows. The development of Regression and analysis of social and environmental factors allowed the development of an indicator capable of estimating the consumption of a university, reflecting the impact that an energy efficiency project has on issues such as increasing the number of students in universities, or reduction in greenhouse effect gas emissions. The equations demonstrated were tested with the data collected from the universities, with subsequent discussion of the errors found.