Abstract
In this paper, a methodology was developed to analyze the results of energy efficiency programs used in the electricity distribution sector in Brazil. Analyzing the gains obtained through the investments made, and classifying which actions resulted in the best performance, contributed to decision making on the best allocation of investments to obtain the greatest energy savings. The Brazilian Energy Efficiency program was analyzed with a developed non-parametric model, using the data envelopment analysis method, and the categories of projects with better performance were determined. A database of the results from 1704 projects, from 2008 to 2016 in the Energy Efficiency program in Brazil´s electricity distribution sector, was used. The results obtained show that the best performance was achieved by projects in the industrial and cogeneration categories; however, in Brazil these constitute only 4.24% of the projects presented and 5.28% of the total investments in the last eight years, indicating a need to review the regulatory strategies for energy efficiency in this country.
Highlights
Energy efficiency is a high potential and low-cost source that can reduce total energy costs by about 20%, implementing energy efficiency measures substantially lowers costs compared to the initiation of new sources of supply and offers an excellent mechanism for the reduction of carbon emissions [1]
In order to evaluate the Brazilian energy efficiency program, a methodology was used to analyze the projects, classify and quantify the variables, model the problems and determine the best performing projects, and this was culminated with recommendations for the improvement of the program
The results indicate that project categories, and the measures for energy efficiency, are diverse, and it is paramount that this diversity is considered when prioritizing measures for the Energy Efficiency
Summary
Energy efficiency is a high potential and low-cost source that can reduce total energy costs by about 20%, implementing energy efficiency measures substantially lowers costs compared to the initiation of new sources of supply and offers an excellent mechanism for the reduction of carbon emissions [1]. Reducing energy demand has been the main focus of energy efficiency policies in several countries. This goal can be reached through the improvement of products and process efficiency in energy consumption on both the demand and supply sides. Energy conservation goals can be attained by using measures for improving efficiency in appliances, services, and processes that consume energy in all sectors. Such measures lead to policies that focus on the demand side, for instance, by establishing patterns for buildings, requisites for efficiency in equipment, and promoting energy management in industries and other consumption units. It is imperative that such tools be well-projected, linked with realistic goals, and precisely monitored [2]
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