Hybrid Power Plants: A Case Study

Abstract

Energy can be treated as an essential element for the development of society. Therefore, aspects like process' efficiency and environmental impacts must be considered when choosing the supply source. In Brazil, an event showed the fragility of a system that relies on in only one source to attend their necessities; a truckers strike made the whole country stop. The energy sector has a similar situation; more than 60% of Brazilian energetic matrix is represented by one source, hydroelectric power plants. The availability of solar radiation and wind in Brazil makes it possible to diversify its energetic matrix. Thus, the aim of this study is investigating the potential of hybrid solar-wind power plants in two basins of Minas Gerais-Brazil, São Francisco Basin and Jequitinhonha Basin, as well as compare their viabilities in order to address social issues. By analyzing INMET database and economic factors, the study has shown that it is feasible to implement renewable power plants in the basins of the study area, whether individually (solar or wind energy) or hybrid system. It shows in addition that hybrid system should be prioritized, since it presents lower cost, when compared to solar power plant, and more reliability due to seasonality of both sources.

Por um currículo brincante: reflexões sobre a aprendizagem na educação infantil

“…Por isso, é tão importante que ao discorrer acerca do Quando nos referimos à Educação Infantil é importante ressaltar que durante muito tempo se utilizou a expressão Projeto Pedagógico para classificar as atividades pedagógicas desenvolvidas com crianças pequenas, a ideia era não fazer dessa modalidade de ensino uma estrutura rígida. Contudo, na atualidade estudiosos/as têm se debruçado sobre educação e infância enquanto campo de estudo, com intuito de compreender como ocorre o processo de ensino-aprendizagem na infância, bem como problematizar a concepção de currículo para crianças pequenas (OLIVEIRA, 2010;HOFFMANN, 2015;NASCIMENTO;RIOS, 2020).…”