The Environmental Footprint of the end-of-life phase of a dam through a hybrid-MRIO analysis

Martínez, Sara; Arroyo, María del Mar Delgado; Marín, Rubén Martínez; Álvarez, Sergio

doi:10.1016/j.buildenv.2018.09.049

Cited by 12 publications

(4 citation statements)

References 60 publications

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“…As IO‐based analysis are increasingly used to inform policy and demand‐side approaches to climate change mitigation, these differences are highly relevant in terms of prioritization. These variations are relevant especially for hot‐spot analyses in the context of corporate responsibility efforts (Kjaer, Høst‐Madsen, Schmidt, & McAloone, ; Martinez, Delgado, Martinez Marin, & Alvarez, , ; Martinez, Marchamalo, & Alvarez, ), where EE‐MIOTs, also in hybrid LCA‐IOA frameworks (Suh et al., ; Yu & Wiedmann, ), are increasingly applied for calculating footprint accounts of organizations, companies, and products.…”

Section: Discussionmentioning

confidence: 99%

Supply versus use designs of environmental extensions in input–output analysis: Conceptual and empirical implications for the case of energy

Wieland

Giljum

Eisenmenger

et al. 2019

J of Industrial Ecology

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Input-output analysis is one of the central methodological pillars of industrial ecology. However, the literature that discusses different structures of environmental extensions (EEs), that is, the scope of physical flows and their attribution to sectors in the monetary input-output table (MIOT), remains fragmented. This article investigates the conceptual and empirical implications of applying two different but frequently used designs of EEs, using the case of energy accounting, where one represents energy supply while the other energy use in the economy. We derive both extensions from an official energy supply-use dataset and apply them to the same single-region inputoutput (SRIO) model of Austria, thereby isolating the effect that stems from the decision for the extension design. We also crosscheck the SRIO results with energy footprints from the global multi-regional input-output (GMRIO) dataset EXIOBASE. Our results show that the ranking of footprints of final demand categories (e.g., household and export) is sensitive to the extension design and that product-level results can vary by several orders of magnitude. The GMRIO-based comparison further reveals that for a few countries the supply-extension result can be twice the size of the use-extension footprint (e.g., Australia and Norway). We propose a graph approach to provide a generalized framework to disclosing the design of EEs. We discuss the conceptual differences between the two extension designs by applying analogies to hybrid life-cycle assessment and conclude that our findings are relevant for monitoring of energy efficiency and emission reduction targets and corporate footprint accounting. K E Y W O R D Senergy consumption, energy efficiency, energy flow analysis, energy footprint, environmental input-output analysis, industrial ecology

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Section: Discussionmentioning

confidence: 99%

Supply versus use designs of environmental extensions in input–output analysis: Conceptual and empirical implications for the case of energy

Wieland

Giljum

Eisenmenger

et al. 2019

J of Industrial Ecology

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“…While the direct impacts of electricity generation in these plants in the form of emissions is minimal 4 ; the indirect impacts, such as the ones caused by the generation of the energy required for the construction processes or the production of concrete required for dam installation, significantly affect the environment in various ways. 5 Furthermore, HPPs have other adverse impacts on their environment that cannot be quantified as emissions. In order to fully understand the extent of these impacts, a comprehensive and holistic life cycle assessment (LCA) approach is necessary.…”

Section: Introduction and Literature Reviewmentioning

confidence: 99%

Environmental and economic life cycle assessment of a run‐of‐the‐river type hydroelectricity power plant in Turkey

Bor

Üçtuğ

2021

Env Prog and Sustain Energy

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The environmental and economic life cycle assessment of a real-life run-of-the-river type hydroelectricity power plant in Turkey has been performed by considering the following stages: raw material acquisition, construction (including waste management), and transportation. CCaLC2 software and CML2001 methodology were used to calculate six different environmental impacts, whereas the economic impact was chosen as the levelized cost of electricity (LCOE). Functional unit was 1 MWh of electricity generated. The environmental impacts were found to be on average 95% lower than those of the Turkish grid, and the LCOE was calculated as $58.4/MWh. This outcome is understandable considering the high share of fossil fuels, especially low-quality lignite, in Turkish electricity grid. The results were compared to those of a similar study conducted abroad and all the impacts were found to have the same order of magnitude, proving that this study is methodologically consistent with the literature. The main conclusion is that hydroelectricity produced by run-of-the-river type plants in Turkey is environmentally friendly and economically viable compared to grid electricity. This is the first study in Turkey on the life cycle impact analysis of hydroelectricity and one of the few studies that consider economic and environmental factors simultaneously.environmental impact analysis, hydroelectricity power plant, levelized cost of electricity, life cycle assessment, run-of-the-river

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“…It is also important to create optional scenarios by considering short-and long-term effects and presenting the possible course of events both in the case of leaving the dam intact as well as in the case of its removal. Comprehensive plans may present local communities with possibilities related to new forms of development for areas formerly occupied by reservoirs, which may effectively and successfully provide greater social and economic benefits 45,46 . Examples of projects involving the dismantling of dams on rivers in the US, Sweden, Finland, Netherlands and France show the significance of societal participation in the decision-making process (Fig.…”

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confidence: 99%

“…Furthermore, the demolishing process itself constitutes a great risk to the environment, depending on the type of procedures and materials www.nature.com/scientificreports/ (e.g., type of fuels, explosives, etc.) used in the demolition process 45 . Nitrogen flux and eutrophication in coastal watersheds can have a possible negative environmental impact especially for small estuaries 60 .…”

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confidence: 99%

Dam and reservoir removal projects: a mix of social-ecological trends and cost-cutting attitudes

Habel

Mechkin

Podgórska

et al. 2020

Sci Rep

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The removal of dams and reservoirs may seem to be an unforeseen and sometimes controversial step in water management. The removal of barriers may be different for each country or region, as each differs greatly in terms of politics, economy and social and cultural awareness. This paper addresses the complex problem of removing dams on rivers and their connected reservoirs. We demonstrate the scales of the changes, including their major ecological, economic, and social impacts. Arguments and approaches to this problem vary across states and regions, depending on the political system, economy and culture, as confirmed by the qualitative and quantitative intensities of the dam removal process and its global geographical variation. The results indicate that the removal of dams on rivers and their connected reservoirs applies predominantly to smaller structures (< 2.5 m). The existing examples provide an important conclusion that dams and reservoirs should be considered with regard to the interrelations between people and the environment. Decisions to deconstruct hydraulic engineering structures (or, likewise, to construct them) have to be applied with scrutiny. Furthermore, all decision-making processes have to be consistent and unified and thus developed to improve the lack of strategies currently implemented across world.

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The Environmental Footprint of the end-of-life phase of a dam through a hybrid-MRIO analysis

Cited by 12 publications

References 60 publications

Supply versus use designs of environmental extensions in input–output analysis: Conceptual and empirical implications for the case of energy

Supply versus use designs of environmental extensions in input–output analysis: Conceptual and empirical implications for the case of energy

Environmental and economic life cycle assessment of a run‐of‐the‐river type hydroelectricity power plant in Turkey

Dam and reservoir removal projects: a mix of social-ecological trends and cost-cutting attitudes

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