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Avaliação do aproveitamento de resíduos da biomassa florestal da região do Alto Alentejo, nas perspetivas logística, económica e financeira
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Abstract(s)
Este projeto apresenta uma avaliação económica da vertente logística do aproveitamento dos resíduos da biomassa florestal, na perspetiva da implementação de uma central termoelétrica na região do Alto Alentejo. A metodologia segue uma abordagem de minimização de custos e foca-se na estimativa do custo final de cada unidade de energia produzida (em €/MWh), bem como na demonstração e avaliação dos principais resultados económicos e financeiros associados a um projeto de investimento. Uma aplicação SIG é utilizada como ferramenta de suporte no cálculo dos custos de transporte primário e secundário dos resíduos e os resultados obtidos são georreferenciados. Os três municípios eleitos para a instalação de uma central a biomassa são Avis, Crato e Portalegre e as tecnologias de conversão consideradas são a combustão em leito fixo (GC/ST), combustão em leito fluidizado (FBC/ST) e gaseificação integrada (BIG/CC). Da análise efetuada verifica-se que o local mais adequado para a implementação de uma central termoelétrica é o Município de Portalegre, com um custo médio de produção de eletricidade de 95, 98 e 133 €/MWh de produção de eletricidade para as tecnologias consideradas. Conclui-se ainda que nenhuma das configurações de centrais estudadas se evidencia viável em termos de criação de valor e em termos económicos e financeiros, pelo que se considera que um adequado aproveitamento do recurso na região, com impacto, em termos de viabilidade, deve ser realizada a uma escala bastante menor, especificamente em unidades de produção de calor nos setores domésticos e do turismo.
This project develops an economic evaluation of the logistics aspects considering the use of forest biomass residues with the perspective of implementing a thermoelectric plant in Alto Alentejo region. The methodology follows a cost minimization approach and focuses on the cost calculation of each energy unit generated (in €/MWh), as well as the demonstration and assessment of the main economic and financial statements associated with such an investment project. A GIS application is used as a support tool in the calculation of primary and secondary transportation biomass costs from which geo-referenced results are obtained. Three municipalities are selected to the installation of a biomass power plant: Avis, Crato and Portalegre and the conversion technologies considered are fixed bed combustion (GC/ST), fluidized bed combustion (FBC/ST) and integrated biomass gasification (BIG/CC). The performed analysis shows that the most suitable place for the implementation of a thermoelectric plant is Portalegre municipality, with an average electricity production cost of 95, 98 and 133 €/MWh for the three considered technologies. It is also concluded that none of the settings plants power studied shows to be feasible in terms or value creation and also in economic and financial level, so it is considered that an appropriate use of the resource in the region, with viability impact should be performed in a much smaller scale, specifically in heats production units as domestic and touristic sectors.
This project develops an economic evaluation of the logistics aspects considering the use of forest biomass residues with the perspective of implementing a thermoelectric plant in Alto Alentejo region. The methodology follows a cost minimization approach and focuses on the cost calculation of each energy unit generated (in €/MWh), as well as the demonstration and assessment of the main economic and financial statements associated with such an investment project. A GIS application is used as a support tool in the calculation of primary and secondary transportation biomass costs from which geo-referenced results are obtained. Three municipalities are selected to the installation of a biomass power plant: Avis, Crato and Portalegre and the conversion technologies considered are fixed bed combustion (GC/ST), fluidized bed combustion (FBC/ST) and integrated biomass gasification (BIG/CC). The performed analysis shows that the most suitable place for the implementation of a thermoelectric plant is Portalegre municipality, with an average electricity production cost of 95, 98 and 133 €/MWh for the three considered technologies. It is also concluded that none of the settings plants power studied shows to be feasible in terms or value creation and also in economic and financial level, so it is considered that an appropriate use of the resource in the region, with viability impact should be performed in a much smaller scale, specifically in heats production units as domestic and touristic sectors.
Description
Keywords
Análise económica Resíduos de biomassa florestal Logística Transportes Economic evaluation Forestry biomass residues Logistics Transportation