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This study aimed to evaluate the system of electricity generation through the use of biogas from a swine production unit, located in the municipality of São Miguel do Iguaçu, taking into account aspects related to consumption of biogas generation electricity. A flow meter aiming at recording the flow of biogas was used, it was used GCP-22 is the control equipment and generator protection; data acquisition is also performed using energy analyzers. These analyzers record production / consumption in a time interval of 15 minutes. It was observed that the month of May had the highest consumption, reaching approximately 18 m³ of biogas. Evaluating the period, the total energy generated from bike generator set obtained an approximate value 110.3 MWh. The power consumption of the property was 55 MWh, and 16.8 MWh consumed in the distribution network. The surplus energy exported to the distribution network was approximately 72 MWh. The average generation for the period was 605.93 kWh. The average consumption of biogas generator set by bike was 49.3 Nm³.h.

Cassava processing produces by-products such as brown bark, between bark, disposal, bran, fiber and bagasse. Cassava bagasse is characterized as a source of starch that can be converted into sugars to obtain biofuels. The objective of this work was to produce ethanol from this cassava processing residue and to evaluate its contribution potential in the Brazilian energy matrix. Cassava processing residues were obtained from four different starch manufacturers in Brazil. Analysis of the chemical compositions of these samples provided the content of starch, sugar, crude grease, moisture, ash and also their pH values. For the ethanol process, the samples were submitted to enzymatic hydrolysis using the alpha-amylase and amyloglucosidases enzymes, followed by fermentation and distillation. The samples showed high starch indices, approximately 64% on average. The average yield of ethanol obtained was 30% after treatment of the sample like this. Considering the estimated volume of cassava bagasse in Brazil, it is possible to produce an average of 789 million cubic meters per bagasse, replacing about 24% of the first generation ethanol. Cassava bagasse can be considered an interesting biomass for the production of biofuels, contributing to the expansion of the energy matrix.

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