Indirect GHG emissions in hydropower plants: a review focused on the uncertainty factors in LCA studies

Autores

  • Marla Teresinha Barbosa Geller Universidade Federal do Oeste do Pará - UFOPA Centro Universitário Luterano de Santarém - CEULS/ULBRA http://orcid.org/0000-0001-9998-4262
  • Jacqueline Lopes Bailão Universidade Federal do Oeste do Pará - UFOPA
  • Maria Emília de Lima Tostes Universidade Federal do Pará - UFPA
  • Anderson Alvarenga de Moura Meneses Universidade Federal do Oeste do Pará - UFOPA

DOI:

https://doi.org/10.5380/dma.v54i0.68640

Palavras-chave:

hydroelectric power plants, life cycle assessment, GHG emissions, energy

Resumo

Although Life Cycle Assessment (LCA) is standardized, there is a wide range of approaches and discussions of the methodology evaluating of environmental impacts in different contexts in energy production. This review aims to present some findings, and highlight and discuss factors that influence the Life cycle Assessments (LCAs) of Hydropower Plants (HPPs) such as: indirect emissions; different stages of HPPs (construction, operation and decommissioning), the scale/productivity of HPPs; types of projects (reservoir and run-of-river), and land use. This study presents the comparison of different energy sources through the LCA and the comparison between several HPP with their different characteristics. Most of the results obtained by HPP LCAs indicate that the construction phase is the most influential phase for indirect emissions due to the use of steel and concrete. There is an important relationship between impact and production, since plants with higher productivity will have their impacts diluted during their lifetime. The comparison of the LCA results of HPPs with the LCA of other energy sources indicates that, for the category analyzed (Global Warming Potential- GWP), HPPs have a good environmental performance considering the emissions quantified. The object of this study is indirect emissions and not direct emissions, which are important, but require another approach.  This review also indicates some uncertainties related to the LCA of the HPPs and the need to conduct future studies on the environmental impacts of UHEs. We also present suggestions that should contribute to improve the use of the LCA methodology.

Biografia do Autor

Marla Teresinha Barbosa Geller, Universidade Federal do Oeste do Pará - UFOPA Centro Universitário Luterano de Santarém - CEULS/ULBRA

Possui graduação em Bacharel em Informática pelo Instituto Luterano de Ensino Superior de Santarém (2000) e mestrado em Engenharia Elétrica pela Universidade Federal do Pará (2006). Doutora em Ciências Ambientais do Programa de Pós Graduação Sociedade, Natureza e Desenvolvimento da Universidade Federal do Oeste co Pará - UFOPA. Professora do Curso de Sistemas de Informação do Centro Universitário Luterano de Santarém - CEULS/ULBRA e do Curso de Especialização em Informática e as Novas Tecnologias Educacionais. Pesquisadora voluntária no Laboratório de Inteligência Computacional (UFOPA) com ênfase em Análise de Ciclo de Vida na produção de energias renováveis. Áreas de Interesse: Engenharia de Software, Linguagem UML para Sistema IoT, Análise de Ciclo de Vida, Energias renováveis.

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Publicado

2020-12-14

Como Citar

Geller, M. T. B., Bailão, J. L., Tostes, M. E. de L., & Meneses, A. A. de M. (2020). Indirect GHG emissions in hydropower plants: a review focused on the uncertainty factors in LCA studies. Desenvolvimento E Meio Ambiente, 54. https://doi.org/10.5380/dma.v54i0.68640

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