Assessment and statistics of Brazilian hydroelectric power plants: Dam areas versus installed and firm power

Souza, Antonio Carlos Caetano de

doi:10.1016/j.rser.2007.04.005

Cited by 32 publications

(9 citation statements)

References 2 publications

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“…The power density (PD) is an environmental index which measures the environmental impact of a hydroelectric dam. It is defined by the ratio of installed capacity to area inundated by a hydroelectric dam [19,39,40]. We define the power density at an instance i, in time, is given by…”

Section: Power Densitymentioning

confidence: 99%

Sustainable Hydroelectric Dam Management in the Context of Climate Change: Case of the Taabo Dam in Côte D’Ivoire, West Africa

et al. 2019

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Management of hydroelectric dams is an aspect of sustainability that comes with resolving problems locally. The use of global indicators has not been a sustainable solution, thus the need for local indicators. Besides, current sustainability assessment tools lack the integration of climate, making assessments in a climate change context impossible. In this paper, we present management and sustainability assessment in a climate change context using sustainability indicators. We modeled a change in the climate using normal, moderate, and extreme climate conditions defined by Standardized Precipitation Indices (SPI) values. Out of 36 years analyzed, 24 years fall in the near-normal climate regime, and the remaining 12 years in moderate and extreme conditions, making near-normal climate regime the basis for managing the Taabo Dam. The impact of climate, techno-economic, and socio-environmental indicators on sustainability were investigated, and the results were analyzed according to scenarios. Climate adaptation shows higher sustainability indices than techno-economic and socio-environmental scenarios. Probability matrices show high and low values, respectively, for environmental and flooding indicators. Risk matrices, on the other hand, show that even with small probability values, risks still exist, and such small probabilities should not be taken as an absence of risk. The study reveals that sustainability can be improved by integrating climate into existing assessment methods.

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Section: Power Densitymentioning

confidence: 99%

Sustainable Hydroelectric Dam Management in the Context of Climate Change: Case of the Taabo Dam in Côte D’Ivoire, West Africa

et al. 2019

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“…With the exception of the northeastern region of Brazil, the climate in the country is rainy, thus, helping maintain high levels of water flow. Those elements are essential for the development of a high hydropower potential and they contribute to the choice of hydropower plants as the main source of energy generation in Brazil (Souza, 2008).…”

Section: Strategicmentioning

confidence: 99%

Quem são, o que fazem e como interagem: compreendendo os stakeholders em Pequenas Centrais Hidrelétricas

et al. 2018

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Resumo A utilização da energia e as diferentes estratégias de implantação e difusão das novas formas de tecnologia energética envolvem múltiplos stakeholders, com papéis, interesses, valores e crenças distintos. Diante deste contexto, este artigo identificou como atuam e quais são os papéis exercidos pelos stakeholders envolvidos em Pequenas Centrais Hidrelétricas, a partir de uma pesquisa de natureza qualitativa e exploratória. Os dados primários foram coletados a partir de um roteiro de entrevista semiestruturado, sendo entrevistados nove representantes de diferentes grupos de stakeholders . Os dados secundários foram coletados por meio de pesquisa documental, contemplando a legislação do setor, relatórios, editais e orientações disponíveis em sites eletrônicos de órgãos do governo e agências reguladoras. Para examinar os dados, foi utilizada a técnica de análise de conteúdo a partir de três categorias: a) quem são; b) o que fazem; e c) como interagem os stakeholders nas etapas de implantação de uma pequena central hidrelétrica. Foram identificados sete grupos de stakeholders: (1) Agentes Institucionais; (2) Organizações não governamentais; (3) Investidores e produtores de energias renováveis; (4) Bancos de investimento; (5) Fornecedores do setor; (6) Associações de fomento de energias renováveis; e (7) Stakeholders Locais. Além disso, foram descritas cinco etapas para implantação de empreendimentos de energias renováveis e como esses grupos interagem em cada uma delas. Os resultados apontam para a falta de colaboração e diálogo entre os diferentes stakeholders no momento de tomar a decisão sobre a gestão dos recursos, bem como para a falta de informação, o que leva à perda de confiança dos stakeholders locais no empreendimento, antes da instalação e durante todo o seu ciclo de vida. Como contribuição, este estudo verifica que, uma vez identificadas as etapas na implantação e os atores envolvidos, novas formas de comunicação podem ser propostas, a fim de aumentar a transparência da informação, além de modelos de fluxo de trabalho que atentem para a colaboração e o diálogo entre os diferentes stakeholders.

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“…For environmental indicators, we used the power density (PD) and global warming potential (GWP) as indicators to ascertain the environmental implication of the Bui dam. PD has been used as an indicator to assess the environmental impact of a hydropower dam [31,34]. We used PD to evaluate how much power the Bui dam is creating versus how much land area it has taken away.…”

Section: Initial Indicator Value (Q I )mentioning

confidence: 99%

“…The power density indicator, also known as the environmental index, measures the environmental impact of a hydroelectric dam [31,34]. PD for Bui dam was estimated using the equation…”

Section: It =mentioning

confidence: 99%

Sustainability Assessment of the Bui Hydropower System

et al. 2017

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Sustainable hydroelectric projects are judged by their contribution to sustainable development, long-term viability, and ability to integrate sustainability goals. This paper analyses the Bui hydroelectric dam in Ghana vis-à-vis these expectations using sustainability indices. A multi-criteria analysis tool, APIS (Aggregated Preference Indices System), is used to build indices for Bui dam for four hydrologic seasons. An analysis of the indicators used revealed that environmental indicators are weightiest and economic indicators have the least weight. Comparative analysis of the Bui dam project shows 40%, 36%, 18%, and 6% priority for technical, economic, social, and environmental criteria, respectively, during its implementation stages. Per estimation of this work, the general sustainability index of the Bui dam is between 0.4 and 0.6 on a scale of 0 to 1. The impact of seasonal climate change will reduce the index to below 0.5 for three hydrologic seasons. The results show that Bui dam has an average but weak index of sustainability. Multi-criteria analysis offers quality assessment of energy projects, which is valuable for analyzing proposed or existing energy projects. This paper shows the possibility of using multi-criteria analysis approach to assess the sustainability of a hydroelectric dam. The approach offers a quantitative and qualitative assessment of a hydroelectric dam via a suitable choice of indicators.

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Assessment and statistics of Brazilian hydroelectric power plants: Dam areas versus installed and firm power

Cited by 32 publications

References 2 publications

Sustainable Hydroelectric Dam Management in the Context of Climate Change: Case of the Taabo Dam in Côte D’Ivoire, West Africa

Sustainable Hydroelectric Dam Management in the Context of Climate Change: Case of the Taabo Dam in Côte D’Ivoire, West Africa

Quem são, o que fazem e como interagem: compreendendo os stakeholders em Pequenas Centrais Hidrelétricas

Sustainability Assessment of the Bui Hydropower System

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