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Life Cycle Sustainability Assessment of Electricity Generation Systems in Portugal ; Avaliação de ciclo de vida da sustentabilidade de sistemas de geração de eletricidade em Portugal
Dissertação de Mestrado em Energia para a Sustentabilidade apresentada à Faculdade de Ciências e Tecnologia ; The following thesis presents a multidimensional life cycle sustainability assessment (LCSA) study; carried out to estimate and compare the environmental and socioeconomic impacts associated with six, key electricity generation systems in Portugal namely; coal, natural gas, hydro (large and small), wind, and photovoltaic (PV). In addition to updating the models (i.e. data and assumptions) and impact assessment methods used in an existing life cycle assessment (E-LCA) for the Portuguese context (Garcia et al. 2014), the current study also broadens its scope; assessing critical water use, and applies relevant indicators to account for socioeconomic impacts. The life cycle assessment (E-LCA) methodology was used to quantify environmental impacts in: metal depletion, fossil fuel depletion, non-renewable primary energy, global warming potential, ozone depletion, terrestrial acidification, freshwater eutrophication, aquatic acidification, freshwater ecotoxicity; as well as human health impacts in toxicity (carcinogenic and non-carcinogenic). In addition to the water use impacts associated to quality, the water scarcity footprint of each system was estimated using the AWARE method – to assess the water use impact related to quantity. For socioeconomic impacts, a range of empirical methods, and relevant literature were used to estimate impacts in: employment provision (domestic and total), dependence on fossil fuels, capacity factor, and levelised cost of electricity. Within most of the environmental categories, generation based on coal was estimated to have the most negative (i.e. highest) impacts, apart from: metal depletion (wind), ozone depletion (natural gas), water scarcity footprint (large hydro) and freshwater ecotoxicity (PV). For socioeconomic categories, there was more variability as to which system produced the most positive or negative impacts. Coal – previously the worst-performing ...
Life Cycle Sustainability Assessment of Electricity Generation Systems in Portugal ; Avaliação de ciclo de vida da sustentabilidade de sistemas de geração de eletricidade em Portugal
Dissertação de Mestrado em Energia para a Sustentabilidade apresentada à Faculdade de Ciências e Tecnologia ; The following thesis presents a multidimensional life cycle sustainability assessment (LCSA) study; carried out to estimate and compare the environmental and socioeconomic impacts associated with six, key electricity generation systems in Portugal namely; coal, natural gas, hydro (large and small), wind, and photovoltaic (PV). In addition to updating the models (i.e. data and assumptions) and impact assessment methods used in an existing life cycle assessment (E-LCA) for the Portuguese context (Garcia et al. 2014), the current study also broadens its scope; assessing critical water use, and applies relevant indicators to account for socioeconomic impacts. The life cycle assessment (E-LCA) methodology was used to quantify environmental impacts in: metal depletion, fossil fuel depletion, non-renewable primary energy, global warming potential, ozone depletion, terrestrial acidification, freshwater eutrophication, aquatic acidification, freshwater ecotoxicity; as well as human health impacts in toxicity (carcinogenic and non-carcinogenic). In addition to the water use impacts associated to quality, the water scarcity footprint of each system was estimated using the AWARE method – to assess the water use impact related to quantity. For socioeconomic impacts, a range of empirical methods, and relevant literature were used to estimate impacts in: employment provision (domestic and total), dependence on fossil fuels, capacity factor, and levelised cost of electricity. Within most of the environmental categories, generation based on coal was estimated to have the most negative (i.e. highest) impacts, apart from: metal depletion (wind), ozone depletion (natural gas), water scarcity footprint (large hydro) and freshwater ecotoxicity (PV). For socioeconomic categories, there was more variability as to which system produced the most positive or negative impacts. Coal – previously the worst-performing ...
Life Cycle Sustainability Assessment of Electricity Generation Systems in Portugal ; Avaliação de ciclo de vida da sustentabilidade de sistemas de geração de eletricidade em Portugal
2017-09-29
202123014
Theses
Electronic Resource
English
DDC:
690
BIM COMO SUPORTE À AVALIAÇÃO DO CICLO DE VIDA DE EDIFÍCIOS: UMA REVISÃO SISTEMÁTICA
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