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Study shows expansion of biogas, biomethane

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A survey by the International Center for Renewable Energy and Biogas (CIBiogás, in the Portuguese acronym) showed that 114 new biogas plants began operating in Brazil in 2022, a 15% expansion compared to 2021. According to the study, Brazil has currently 936 installed plants, 885 of which are in operation, producing approximately 2.8 billion cubic meters per year (Nm3/year) of biogas for energy use.The report called "Panorama do Biogás no Brasil em 2022" ("Biogas Panorama in Brazil in 2022") shows that producing biomethane, obtained from biogas purification, is this product’s most important energy use. In 2022 there were 20 operational plants producing biomethane in Brazil, an 82% growth.Despite the small number of production units, they convert 22% of the biogas produced in Brazil into around 359.8 Nm3/year of biomethane, enough to run almost 900 million kilometers with heavy vehicles.Another highlight was electricity generation, which represented approximately 86% of the plants in operation in Brazil. They delivered 2.08 billion Nm³/year in 2022, converting 72% of Brazilian biogas. Such production typically comes from small units that cover local demand through the distributed generation model. Despite the current energy oversupply in Brazil, these plants are generally located in farming areas at the farthest end of the distribution networks, where it is hard to deliver quality energy.Data collection for the study took place between April 2022 and May 2023 in all 26 Brazilian states and the Federal District. The states that drove the growth were São Paulo (21%), Paraná (18%), Santa Catarina (17%), and Goiás (16%). Minas Gerais has the most plants in operation, 274, due to tax incentives.CIBiogás President Rafael González told Valor that there is a massive market for electric power generation. However, in recent years he has noticed a growth in the volume of biogas dedicated to producing biomethane."Electric energy has older regulation. Biomethane is more recent regarding regulation and business model capacity," he said. "There is a transition from using biogas for electricity to biomethane."The growth in biomethane production has accelerated since 2016. The executive attributes this to...

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