Optimal Reservoir Operation with Environmental Flows for Ranganadi Hydroelectric Project in Arunachal Pradesh

2016 ◽  
pp. 209-223 ◽  
Author(s):  
Mudo Puming ◽  
Ram Kailash Prasad
Keyword(s):  
Reservoir Operation ◽  
Environmental Flows ◽  
Arunachal Pradesh ◽  
Hydroelectric Project

scholarly journals Assessment of the Multi-Objective Reservoir Operation for Maintaining the Turbidity Maximum Zone in the Yangtze River Estuary

2018 ◽  
Vol 15 (10) ◽  
pp. 2118 ◽  
Author(s):  
Yang Yu ◽  
Peifang Wang ◽  
Chao Wang ◽  
Xun Wang ◽  
Bin Hu
Keyword(s):  
Reservoir Operation ◽  
Yangtze River ◽  
Environmental Flows ◽  
River Estuary ◽  
Yangtze River Estuary ◽  
The Yangtze River ◽  
Operation Model ◽  
Hydropower Generation ◽  
Quantitative Correlation ◽  
The Yangtze River Estuary

The construction of multifunction reservoirs is important for flood control, agriculture irrigation, navigation, and hydropower generation, but dam construction will inevitably affect the downstream flow and sediment regimes, which can cause some environmental and ecological consequences. Therefore, this paper aims to propose a framework for assessing the multiobjective reservoir operation model based on environmental flows for sustaining the suspended sediment concentration (SSC) requirements in the turbidity maximum zone (TMZ). The Yangtze River Estuary was used as a case study. Through using an analytical model, a quantitative correlation between SSC and water flow rate was established. Then, the quantitative correlation and the SSC requirements were applied to determine the environmental flows for the estuarine TMZ. Subsequently, a multiobjective reservoir operation model was developed for the Three Gorges Reservoir (TGR), and an improved nondominated sorting genetic algorithm III based on elimination operator was applied to the model. An uncertainty analysis and a comparative analysis were used to assess the model’s performance. The results showed that the proposed multiobjective reservoir operation model can reduce ecological deficiency under wet, normal, and dry years by 33.65%, 35.95%, and 20.98%, with the corresponding hydropower generation output lost by 3.37%, 3.88%, and 2.95%, respectively. Finally, we discussed ecological satiety rates under optimized and practical operation of the TGR in wet, normal, and dry years. It indicated that the multiobjective-optimized runoff performs better at maintaining the TMZ in the Yangtze River Estuary than practical runoff. More importantly, the results can offer guidance for the management of the TGR to improve the comprehensive development and protection of the estuarine ecological environment.

scholarly journals DEVELOPMENT OF RESERVOIR OPERATION FOR BATANG AI HYDROELECTRIC PROJECT

2016 ◽  
Vol 7 (2) ◽  
pp. 45-49
Author(s):  
Kiu Kwong Kiat ◽  
Frederik Josep Putuhena
Keyword(s):  
Power Generation ◽  
Water Supply ◽  
Power Supply ◽  
Water Demand ◽  
Reservoir Operation ◽  
Maximum Capacity ◽  
Hydroelectric Project ◽  
Continuous Power

Batang Ai Hydroelectric Project is meant to generate electricity. The Batang Ai Dam has a maximum capacity to generate around 108MW when it is fully operational. Efficient reservoir operation should be carried out very carefully in order to provide reliable water supply for power generation and water demand. The research of this project is to review the Batang Ai Dam storage conservation for the reservoir operation by using storage conservation simulation. The simulations are carried out with various outflow conditions using the principle of the storage equation. Lastly, the results from the simulation show that with proper regulation of the reservoir outflow, the Batang Ai Hydroelectric Project reliability to provide continuous power supply without shortage in water supply is assured.

scholarly journals Cost-benefit analysis of reservoir operation scenarios considering environmental flows for the lower stretch of the São Francisco River (Brazil)

RBRH ◽  
2017 ◽  
Vol 22 (0) ◽  
Author(s):  
Micol Brambilla ◽  
Andrea Sousa Fontes ◽  
Yvonilde Dantas Pinto Medeiros
Keyword(s):  
Reservoir Operation ◽  
Cost Benefit Analysis ◽  
Environmental Flows ◽  
Cost Benefit ◽  
Energy Sector ◽  
Practical Implementation ◽  
Benefit Analysis ◽  
Sao Francisco River ◽  
São Francisco River ◽  
The Cost

ABSTRACT Environmental water allocation consists in considering the environment as a licit user of water. The importance of meeting the environment’s hydric necessities to assure ecosystem protection is recognized worldwide, however their practical implementation is restricted, requiring impact assessment of the implementation towards the other water users. In this context, this article aims to evaluate the financial impacts on the hydroelectric sector considering environmental flows as reservoir release restrictions. The case study is the lower course of the São Francisco River, a region that presents a strong social and environmental degradation of great importance for Brazilian energy system. The method used to achieve this goal contemplates the construction of reservoir operation scenarios, the mathematical modeling of the water system and the cost-benefit analysis for the energy sector. The simulation points out potential conflicts between the non-consumptive uses. Assessing the cost-benefit analyses for normal and dry periods, it turns out that the first leads to total financial losses for the energy sector, while the second to payoffs, enabling agreements between Brazil’s energy generation and the implementation of environmental flows in the lower stretch of the São Francisco River.

scholarly journals Environmental Flows in Nepal - An Evaluation of Current Practices and an Analysis of the Upper Trishuli-I Hydroelectric Project

2015 ◽  
Vol 17 ◽  
pp. 8-17 ◽  
Author(s):  
Narayan Hari Rijal ◽  
Knut Alfredsen
Keyword(s):  
Current Flow ◽  
Environmental Flows ◽  
Developed Countries ◽  
Environmental Flow ◽  
Hydroelectric Project ◽  
Recent Developments ◽  
Current Minimum ◽  
Planning Development ◽  
The Developed Countries ◽  
Flow Over Time

Environmental assessments and environmental flows are important components in modern hydropower development. Various methods employing a combination of hydrology, hydraulics, environmental assessment and ecology have been developed for analysing and setting environmental flows. In the developed countries, detailed assessments are being carried out for setting environmental flows whereas very little attention has been given to this topic in Nepal. However, this trend is changing in recent developments. We discuss current minimum flow practices for a number of hydropower projects in the planning, development and operation phases to observe minimum flows and environmental flow over time. Furthermore, we present an analysis of environmental flows for the Upper Trishuli-I Hydroelectric Project in Nepal that is currently in the planning phase. We base our conclusion using current flow assessment methodologies to study the effects of proposed minimum flows and possible changes to improve the effect of compensatory releases. HYDRO Nepal JournalJournal of Water, Energy and EnvironmentIssue: 17, July 2015 

Optimisation of cascade reservoir operation considering environmental flows for different environmental management classes

2020 ◽  
Vol 158 ◽  
pp. 453-464 ◽  
Author(s):  
Naresh Suwal ◽  
Xianfeng Huang ◽  
Alban Kuriqi ◽  
Yingqin Chen ◽  
Kamal Prasad Pandey ◽  
...  
Keyword(s):  
Environmental Management ◽  
Reservoir Operation ◽  
Environmental Flows

A Method for Evaluating the Impacts of Reservoir Operation on Fish Communities

2007 ◽  
Author(s):  
Jian-Ping Suen ◽  
Edwin E. Herricks ◽  
J. Wayland Eheart ◽  
Fi-John Chang
Keyword(s):  
Reservoir Operation ◽  
Fish Communities
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