1. Center of Energy Planning, University of Campinas (NIPE/UNICAMP), R. Cora Coralina, 330—Cidade Universitária, Campinas 13083-896, SP, Brazil
2. Interdisciplinary Research Group on Biotechnology Applied to the Agriculture and the Environment (GBMA), School of Agricultural Engineering (FEAGRI), University of Campinas (UNICAMP), Av. Candido Rondon, 501—Cidade Universitária, Campinas 13083-875, SP, Brazil