Avaliação econômica da substituição de fontes convencionais de energia por biogás em assentamento rural do estado de São Paulo.

Abstract

The growing energy consumption in agriculture and the increasing energy prices demand economic and technical viability analysis about alternative energy sources. The aim of this work was to evaluate economically the biodigestion system to produce biogas and electrical energy in a rural settlement in São Paulo state. It were compared the costs of biodigestion system and the energy savings by the biogas production, using swine wastewater. The energy savings were ten times greater than the annual costs. The results can be used to subsidize public policies directed to biomass exploitation and to guide producers in decision about adoption of alternative energy sources.