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The Intended Nationally Determined Contribution from Brazil presented in COP 21, ratified in 2016 by the Brazilian Congress, establishes goals regarding reduction of carbon emissions and increasing the share of biofuels by 2030. In this scenario, biogas and biomethane are suitable renewable fuels to meet such goals. Thus, the Bioenergy Research Group of the Institute of Energy and Environment at the University of São Paulo (GBIO/IEE/USP) developed "Project 27 - The biomethane contribution prospects to increase the supply of NG in São Paulo" - within the Research Center for Gas Innovation (RCGI/FAPESP/SHELL/USP). Project 27’s objective is to map the production of biogas and biomethane in the state of São Paulo, where the most promising biogas potential in Brazil resides. In view of the above, this article aims to present the results obtained for biogas and biomethane potentials so far, to compare it to other estimates and to study the incentives for these biofuels in São Paulo. The results obtained diverge from other studies' estimates for biogas and biomethane in the state of São Paulo. Nonetheless, they show that the biogas and biomethane potential is São Paulo is largely underused. However, the state already has a number of policies and regulations aiming towards introducing biogas and biomethane to the energy matrix., Proceedings of the 26th European Biomass Conference and Exhibition, 14-17 May 2018, Copenhagen, Denmark, pp. 1503-1511

Nowadays, there are not so many experiences with biogas conversion to energy in Brazil. However, there are several initiatives from state governments aiming to incentivize the injection of biomethane into the natural gas grid. Recently, the Federal Regulatory Agency for Oil and Biofuels (ANP) has defined parameters for quality control of biomethane from landfills and sewage stations to be used in the transport sector, as well as for residential, industrial and commercial uses all over the country. On the other hand, a new Danish legislation from 2012 has formed a new growth momentum to upgrade and integrate biomethane in the natural gas grid for industrial and transportation utilisation. This experience and gained knowledge could be applied to the Brazilian scenario. We also analyse the feasibility of using co-digestion and integrate large-scale biogas plants to sugarcane mills, addressing the environmental issues that appear. This study shows that there is a need for further case studies and demonstration plants to overcome technological, political, economic and cultural challenges., Proceedings of the 26th European Biomass Conference and Exhibition, 14-17 May 2018, Copenhagen, Denmark, pp. 1493-1494