http://hdl.handle.net/11422/97 2026-04-11T03:16:07Z http://hdl.handle.net/11422/28409 Title: Avaliação financeira e de emissões de gases de efeito estufa de sistemas de baixo carbono na agropecuária no Brasil Author(s)/Inventor(s): Gama, Stella Mainardi Nogueira da Advisor: Pereira, Joana Correia de Oliveira de Portugal Abstract: This dissertation sought to evaluate greenhouse gas (GHG) emissions, financial results and abatement costs related to the intensification of livestock production in the Brazilian Midwest at three different production scales. The intensification strategies evaluated include semi-confinement, confinement, and integrated crop-livestock (ILP, in Portuguese) systems. Initially, the baseline and the intensification strategies had their technical parameters established and the GHG emissions calculated. Subsequently, production costs, revenues and financial indicators related to the baseline and intensive strategies were determined. This step was followed by the calculation of the GHG abatement cost of livestock intensification. The baseline strategy recorded the largest GHG footprint. All intensive strategies showed a reduction of at least 45% of GHG emissions per kg of carcass, with the ILP strategy having the lowest GHG footprint. When accounting for the organic carbon stored in the soil, this reduction became even greater. On the small scale of production, only the ILP was more profitable than the baseline, Extensive System. However, on medium and large scale, all intensive strategies recorded higher profits. The reduction of GHG emissions per product and the higher profits made possible negative GHG abatement costs in the medium and large scale of production. Publisher: Universidade Federal do Rio de Janeiro Type: Dissertação 2022-07-01T00:00:00Z http://hdl.handle.net/11422/28405 Title: Análise das emissões de títulos verdes no setor de energia no Brasil Author(s)/Inventor(s): Boité, Patrícia Schumer Nunes Advisor: Lucena, André Frossard Pereira de Abstract: This work performs an analysis of the role of the Brazilian energy sector in the domestic market of Green Bonds, based on a survey and consolidation of available data - issue date, value, term, interest rate (spread), type of financial product (debentures, agribusiness receivables certificates, real estate receivables certificates, receivables investment fund, financial bills and promissory notes) and allocation of resources – by renowned financial institutions, such as: ANBIMA, B3, FEBRABAN, CBI, CEBDS, VÓRTX Distribuidora de Títulos e Valores Mobiliários Ltda., Oliveira Trust Distribuidora de Títulos e Valores Mobiliários S.A., True Securitizadora S.A., Pentágono S/A DTVM, Simplific Pavarini DTVM LTDA. and SITAWI, for example. Bearing in mind the need for a better understanding of the context in which green bonds are inserted, this research was introduced from an analysis of the global climate crisis, which becomes necessary not only an immediate transformation with the increase and acceleration of mitigation and climate adaptation measures, but also the development of credit strategies through the transformation of the financial system, in order to guide the flow of capital in prioritizing sustainability projects. Faced with the Brazilian political and economic scenario, a deficit of public investment was verified in opposition to the greater demand in infrastructure and the expansion of the commitments assumed in the Determined National Contribution (NDC) in more ambitious goals. It was found that, even though there are still operational and specific challenges in its implementation, the national green bond market is driven by the energy sector – leader in raising the necessary resources to be invested in projects or assets that provide environmental benefits to the environment, such as wind farms, solar plants, biofuel production, among others. Publisher: Universidade Federal do Rio de Janeiro Type: Dissertação 2022-12-01T00:00:00Z http://hdl.handle.net/11422/28401 Title: Sistemas solares fotovoltaicos integrados à rede em instituições multi-sedes: uma abordagem técnica a partir do estudo do projeto IFRN-Solar Author(s)/Inventor(s): Pinheiro, Hélio Henrique Cunha Advisor: Castelo Branco, David Alves Abstract: The use of photovoltaic solar technology is increasingly widespread and consolidated worldwide, gaining significant space in Brazil. Thanks to records of gradual price decreases and the construction of legal frameworks favorable to their diffusion, urban and rural residential consumers, service companies, industries and the government are progressively adhering to the use of this technology. In this context, it is important that institutions and companies with multiheadquarters discern whether it is more advantageous, from both a technical and economic point of view, to disperse photovoltaic systems throughout all of their headquarters or to centralize them in the offices presenting the best energy efficiency. The present study aims at answering this question. To this end, indicators recorded in the IFRN-Solar Project implemented by the Rio Grande do Norte Federal Institute of Education, Science and Technology, in Brazil, where 2 MWp of photovoltaic solar energy are installed in 21 of its 23 headquarters, were evaluated. The PVWatts software, energy measurements at the different plant installation locations and technical performance parameters recurrent in the literature, as well as the Discounted Payback Method were used herein. The results indicate that system centralization in the best-evaluated sites (7 campi) will, in 25 years, provide a 2.75% energy supply gain, a 155.96% financial gain and a payback reduction of 9.4 years when compared to the alternative comprising generation unit dispersion throughout the 21 campi. Publisher: Universidade Federal do Rio de Janeiro Type: Tese 2022-06-01T00:00:00Z http://hdl.handle.net/11422/28384 Title: A new spatial explicit methodology for inputting land use data into BLUESix – an improved integrated assessment model for Brazil based on the original BLUES model Author(s)/Inventor(s): Diuana, Fabio Amendola Advisor: Schaeffer, Roberto Abstract: The outcomes of the BLUES integrated assessment model have been supporting climate mitigation actions and energy policies in Brazil in the last few years. The current work converted BLUES to a new framework based on the MESSAGEix platform from the International Institute for Applied Systems Analysis (IIASA): the new BLUESix. At the same time, a new methodology based on a spatially explicit analysis to update land use input data into BLUES was developed and tested. Both efforts were analyzed and presented individually and combined. The conversion process achievements show that the conversion process has been successful, considering that new results do not invalidate the results obtained from the original BLUES model. Several land use methods were proposed. In order to define the most adequate land use input data method, two were selected and simulated in BLUESix. Results indicate that both methods enhanced land use results compared to the original land use input data. Nevertheless, the selected methods did not show significant differences between them. The combination of both endeavors carried out under this thesis provides opportunities for new studies and improvements in the BLUES model and other models based on the MESSAGE platform. Publisher: Universidade Federal do Rio de Janeiro Type: Tese 2022-04-01T00:00:00Z