Hydropower

Kumar, Arun; Schei, Tormod; Ahenkorah, Alfred Ofosu; Rodriguez, Rodolfo Caceres; Devernay, Jean-Michel; Freitas, Marcos Aurélio Vasconcelos de; Hall, Douglas G.; Killingtveit, Ånund; Liu, Zhiyu; Branche, Emmanuel; Burkhardt, John J.; Descloux, Stephan; Heath, Garvin; Seelos, Karin; Morejon, Cristobal Diaz; Krug, Thelma

doi:10.1017/cbo9781139151153.009

Cited by 108 publications

(95 citation statements)

References 40 publications

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“…Hydropower is considered as an inexpensive and renewable energy source [7] because it uses the water from the river to generate electricity and produces lower amounts of greenhouse gases compared to hydrocarbon-fueled power generation [47]. Hydropower has an advantage over other renewable sources as it can respond rapidly to energy demands, has a high storage capacity and is a more stable and reliable means of generating electricity.…”

Section: Driversmentioning

confidence: 99%

“…Hydropower is a renewable and inexpensive source of energy [1][2][3] that already contributed to about 16% of the global electricity production in 2011 [4]. Dams have been continuously constructed for hydropower generation and other purposes [5][6][7]. Until 2016, there were globally about 58,402 large dams (i.e., with heights over than 15 m) in operation of which 9595 were primarily designed for hydropower generation [8].…”

Section: Introductionmentioning

confidence: 99%

“…Hydropower dams are typically designed and operated to maximize the energy production and/or to regulate the water flows in order to protect human settlements, as well as aquatic ecosystems from drought and inundations [3]. However, besides these assets, hydropower dams can have adverse effects on the structure and functioning of aquatic ecosystems [5,7,9].…”

Section: Introductionmentioning

confidence: 99%

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Modelling Tools to Analyze and Assess the Ecological Impact of Hydropower Dams

Nguyen

Everaert

Boets

et al. 2018

Water

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Abstract:We critically analyzed a set of ecological models that are used to assess the impact of hydropower dams on water quality and habitat suitability for biological communities. After a literature search, we developed an integrated conceptual model that illustrates the linkages between the main input variables, model approaches, the output variables and biotic-abiotic interactions in the ecosystems related to hydropower dams. We found that variations in water flow and water depth coupled with increased nutrient availability are major variables that contribute to structural and functional ecosystem changes. We also found that ecological models are an important tool to assess the impact of hydropower dams. For instance, model simulation of different scenarios (e.g., with and without the dam, different operation methods) can analyze and predict the related ecosystem shifts. However, one of the remaining shortcomings of these models is the limited capacity to separate dam-related impacts from other anthropogenic influences (e.g., agriculture, urbanization). Moreover, collecting sufficient high-quality data to increase the statistical power remains a challenge. The severely altered conditions (e.g., generation of very deep lakes) also lead to difficulties for standardized data collection. We see future opportunities in the integration of models to improve the understanding of the different processes affected by hydropower dam development and operation, as well as the use of remote sensing methods for data collection.

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Section: Driversmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Modelling Tools to Analyze and Assess the Ecological Impact of Hydropower Dams

Nguyen

Everaert

Boets

et al. 2018

Water

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“…These devices therefore capture energy from moving water, without requiring dams or diversions [18].…”

Section: Hydrokinetic Turbinesmentioning

confidence: 99%

A review of low head hydropower technologies and applications in a South African context

Loots

Dijk

Barta³

et al. 2015

Renewable and Sustainable Energy Reviews

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This paper provides a review of available low head hydropower technologies, followed by the identification of sites where the technologies can be implemented, applied specifically to a South African context.The potential sites where low head hydropower can be installed in South Africa are grouped as follows: dams and barrages (retrofitting); rivers; irrigation systems (canals and conduits); and urban areas (industrial and urban discharge, storm water systems and water distribution systems).

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“…Globally, hydropower is the largest renewable energy source [1], and it produced (in 2009) around 16.5% of the world's total electricity and around 85% of the world's renewable electricity [2].…”

Section: Introductionmentioning

confidence: 99%

Some Aspects of Ice-Hydropower Interaction in a Changing Climate

2014

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Abstract:Ice formation and related processes in rivers and lakes/reservoirs influence the operation of hydropower plants in cold regions. It is a matter of interest to the scientific community and hydropower operators alike how existing ice effects and problems will manifest themselves in a future changed climate. In this paper, we use different modeling results to investigate future freshwater ice conditions. The modeling approaches include using temperature derived winter indices, using one-dimensional (1D) hydrodynamic and ice cover model on three case study reservoirs, and using a 1D river hydrodynamic and ice cover model for a river reach. The analysis shows that changes in river and reservoir ice regimes due to climate change scenarios may have both positive and negative consequences for hydropower operation. Positive consequences emerge from reduction in ice season and reduced static ice loads. Negative consequences or challenges are attributed to unstable winters that may lead to increased frequency of freeze-thaw episodes with a shortened winter season. These aspects are discussed in more detail in the paper.

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Hydropower

Cited by 108 publications

References 40 publications

Modelling Tools to Analyze and Assess the Ecological Impact of Hydropower Dams

Modelling Tools to Analyze and Assess the Ecological Impact of Hydropower Dams

A review of low head hydropower technologies and applications in a South African context

Some Aspects of Ice-Hydropower Interaction in a Changing Climate

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