Classification of Management Alternatives to Combat Reservoir Sedimentation

Morris, Gregory L.

doi:10.3390/w12030861

Cited by 69 publications

(40 citation statements)

References 46 publications

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“…A first attempt to avoid the effect of sedimentation on the reservoir operation started in 2015 by retarding the delta advance towards gradually raising the reservoir's minimum operating level. Several adaptive strategies have been reported to mitigate and prevent sedimentation impacts [23]. In this regard, the minimum level rose to 1210 m, being continuously increased at a rate of 0.5 m per year and focusing new deposits onto the top of the delta.…”

Section: Sediment Dynamics Of La Esmeralda Reservoirmentioning

confidence: 99%

Chivor’s Life Extension Project (CLEP): From Sediment Management to Development of a New Intake System

Río¹,

Moffett²,

Nieto-Londoño

et al. 2020

Water

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Sedimentation is an important issue that has been studied for the watershed of reservoirs, since it increases operational costs of hydropower installations, reduces the life expectancy, and compromises the generation capacity due to volume reduction. This work addresses the implementation of Chivor’s Life Extension Project (CLEP), developed in order to extend the life of La Esmeralda reservoir, which is used for power generation in Colombia. Sediment dynamics studies are first described and connected to the need of the AES Corporation to extend the life expectancy of the Chivor Hydropower Project. The geotechnical and hydraulic designs are described and the main considerations and tools for the execution of such a project are addressed. The construction of the new intake system was developed under favorable geomorphological, geological, and hydrogeological conditions, and the project is being developed without affecting the current operation. Such an innovative project is the first of its class in Colombia and goes from studies of sediment transport and sediment management strategies in the watershed to the design and construction of new intakes, in order to extend the life of an existing 1000-MW (6% of Colombia’s demand) powerplant for 50 more years, contributing to a sustainable energy supply for the future.

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Section: Sediment Dynamics Of La Esmeralda Reservoirmentioning

confidence: 99%

Chivor’s Life Extension Project (CLEP): From Sediment Management to Development of a New Intake System

Río¹,

Moffett²,

Nieto-Londoño

et al. 2020

Water

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“…The fulfillment of such SDG requires changes such as new management schemes and more presence of renewable energy projects in the mix [2]. Within such renewables, and despite some of their drawbacks [3][4][5][6], hydropower projects represent valuable assets for the electric power sector, since they provide an important support for grid and mix planning within several countries [7][8][9][10], especially in developing countries in which population is growing faster [11]. According to the International Energy Agency [12], cost reductions for renewables and advances in digital technologies are opening opportunities for energy transitions, which implies that policy makers need to move fast to keep up with the pace of technological change, allowing the appearance of flexible power systems.…”

Section: Introductionmentioning

confidence: 99%

Digital Transformation of Energy Companies: A Colombian Case Study

Giraldo¹,

Rotta²,

Nieto-Londoño

et al. 2021

Energies

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The United Nations established 17 Sustainable Development Goals (SDGs), and the fulfillment of the 7th, defined as “Ensure access to affordable, reliable, sustainable, and modern energy for all”, requires energy industry transitions and digital transformations, which implies that diverse stakeholders need to move fast to allow the growth of more flexible power systems. This paper contains the case report that addresses the commercial digital transformation process developed at AES Colombia, through the implementation of a modern platform based on specialized applications that use Industry 4.0 tools. The Chivor hydropower project, a 1000-MW powerplant that covers 6% of Colombia’s demand, which is owned by AES Colombia and constitutes its primary asset, is first described. Then, a description of Colombia’s complex market (energy matrix, trading and dispatch mechanisms, and future projects) is presented. Then, the methodology followed for the digital transformation process using modern tools is described. The project, conceived as a broad framework, comprises applications for the management of hydrological, operational, and market information, commercial information systems and platforms to facilitate consultation and analysis by different users. Such an innovative project in the Latin American context has been developed in order reduce risks and to contribute to a sustainable energy supply for the future.

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“…The global extent of natural wetlands declined by 30% between 197030% between and 200830% between (UNEP, 2015. Overall, the growth of built-up areas causes the cities in downstream to expose to floods six to eightfold higher than it would have been under the natural land cover (Morris, 2020). In cities the built-up areas cover the land with impermeable surfaces such as roads, buildings, pavements that affect the natural flood defence mechanisms, particularly, infiltration and surface runoff.…”

Section: Introductionmentioning

confidence: 99%

A GIS-Based Simulation Application to Model Surface Runoff Level in Urban Blocks

Wijayawardana

Abenayake

Jayasinghe

et al. 2020

FARU J.

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Simulation of flood inundation in urban areas longer important, given the magnitude of potential loss and disruption associated with non-river based, urban flooding. The complexity of the urban environment and lack of high-resolution topographic and hydrologic data compromise the development and implementation of models. Low impact development (LID) is technical know-how on a collection of sustainable practices that mimic natural hydrological functions including infiltration, evapotranspiration or use of surface runoff. Several studies have been carried out to discuss the impact of urbanization scenarios in reducing the urban flood risk in watershed scale in Sri Lanka. Yet, there is a gap remains in simulating the effectiveness of LID-based planning practices to reduce flood risk with the complex built form scenarios. In such a situation, this study attempts to make a significant contribution to simulate the variations of flood regulation functions under different high-intensive urban development scenarios, particularly focusing on the urban metropolitan regions. The analyses were carried out utilizing SWMM (Storm Water Management Model) which is open-source flood inundation simulation approach with the help of GIS in a more qualitative manner. The simulation results indicate that expanding built form scenarios increase the flood venerability for city functions, increasing inundation duration and LID scenarios able to reduce the surface runoff to reduce flood vulnerability at a significant level. The simulation results had been verified with the real ground situation (mean percentage change < 15.5%) which able to capture the thresholds of built form variation, as well as dynamic land uses and infrastructure supply which can be used as a tool for future planning practices and decision-making.

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Classification of Management Alternatives to Combat Reservoir Sedimentation

Cited by 69 publications

References 46 publications

Chivor’s Life Extension Project (CLEP): From Sediment Management to Development of a New Intake System

Chivor’s Life Extension Project (CLEP): From Sediment Management to Development of a New Intake System

Digital Transformation of Energy Companies: A Colombian Case Study

A GIS-Based Simulation Application to Model Surface Runoff Level in Urban Blocks

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