hydropower dam Articles

  • Cumulative Environmental Impact Of Cascade Hydropower Dams Construction On The Water-River

    Abstract Variation of environmental indices in cascade dams could be intensified in comparison with single dams. In cascade dams the intensification of long term negative impacts are more important than the impacts in single case dam. In addition, these impacts are more permanent and intense, so the precise study of cascade dams is indispensable. The main goal in this research is to study the ...

  • Factsheet: Hydropower and ecology

    Accounting for 20% (around 3,400 TWh) of global electricity production – even though its contribution to gross final energy consumption is only about 2% – hydropower plays a vital role. This is largely due to the fact that it can be readily regulated to meet fluctuations in demand and substantial reserves can be stored in reservoirs. Hydropower supplies around 56% of Switzerland's ...


    By IWA Publishing

  • Rogun Hydropower Project, Tajikistan

    Huckbody Environmental has been commissioned by the World Bank to undertake an HSE due diligence analysis of the Rogun Hydropower project in Tajikistan. According to the current conceptual design Rogun would be a reservoir type HEPP with a dam height of about 335 m X ca.1500m at its base. The reservoir would have a total storage volume of 13.5 million cubic meteres and an active storage volume of ...


    By Huckbody Environmental

  • Long Tan Hydroelectric Dam

    Black & Veatch is the design and construction consultant for the world's largest roller-compacted concrete dam, which will be the world's fourth largest hydropower station and protect 12 million people from flooding. China must create urban infrastructure for the equivalent of the city of Houston, Texas, every month for the next 30 years to accommodate the relocation of 280 million rural ...


    By Black & Veatch Corporation

  • How to plan hydropower stations for the future

    The hydropower plants of tomorrow won’t only produce energy. Constructing dams will also provide new drinking water sources, irrigation for crops, and new waterways for transport. In the words of most of the scientists here at World Water Week in Stockholm, Sweden, they will be ‘multipurpose’. This means that each plant ...


    By SciDev.Net

  • SRS Crisafulli Explores Dredging and Hydropower

    SRS Crisafulli Explores Dredging and Hydropower Energy production and consumption worldwide is influenced by many factors.  Resource availability, economic activity, population growth and environmental ...


    By SRS Crisafulli, Inc.

  • The Grand Renaissance Dam and prospects for cooperation on the Eastern Nile

    The escalation of tensions between Ethiopia and Egypt over the construction of the Grand Renaissance is at least partly based on a misunderstanding of the nature of the risks this dam poses to Egypt. There is a two-part, win–win deal that can defuse tensions between Egypt and Ethiopia. First, Ethiopia needs to agree with Egypt and Sudan on rules for filling the Grand Renaissance Dam (GRD) ...


    By IWA Publishing

  • Data Highlight: Hydropower Continues Steady Growth

    World hydroelectric power generation has risen steadily by an average 3 percent annually since 1965. In 2011, at 3,500 billion kilowatt-hours, hydroelectricity accounted for roughly 16 percent of global electricity generation, almost all produced by the world’s 45,000-plus large dams. Graph ...


    By Earth Policy Institute

  • Trung Son hydropower project : overview and update

    Trung Son is a $411.57 million medium-sized hydropower and development project located in Northwest Vietnam that will supply least-cost electric power for domestic consumption in an environmentally and socially sustainable manner and will contribute to improvements in dam safety in the power sector in Vietnam. The project will also contribute to the climate change agenda in Vietnam by avoiding ...


    By IWA Publishing

  • The blue water footprint of electricity from hydropower

    Hydropower accounts for about 16% of the world’s electricity supply. It has been debated whether hydroelectric generation is merely an in-stream water user or whether it also consumes water. In this paper we provide scientific support for the argument that hydroelectric generation is in most cases a significant water consumer. The study assesses the blue water footprint of hydroelectricity ...


    By IWA Publishing

  • Aswan High Dam Reservoir management system

    The Aswan High Dam Reservoir management system was developed to simulate dam operation under varying boundary conditions taking as example climate change and Millennium Dam construction, and analyze the optimal operation rules of the reservoir taking into account a large number of objectives, including hydropower production and water supply for irrigation purposes. The developed system runs on ...


    By IWA Publishing

  • An assessment of reservoir filling policies for the Grand Ethiopian Renaissance Dam

    Africa's largest hydropower facility is currently under construction on the main stem of the Blue Nile River in Ethiopia. The Grand Ethiopian Renaissance Dam (GERD) is poised to facilitate regional development with a 63 billion cubic meter reservoir and 6,000 MW of power generating capacity. To date, however, no reservoir filling rate policy has been established. This policy will have ...


    By IWA Publishing

  • Potential impacts on hydrology and hydropower production under climate warming of the Sierra Nevada

    Watersheds of the Cosumnes, American, Bear and Yuba (CABY) Rivers in the Sierra Nevada, California, are managed with a complex network of reservoirs, dams, hydropower plants and water conveyances. While water transfers are based on priorities among competing demands, hydropower generation is licensed by the Federal Energy Regulatory Commission (FERC) and regulated by federal and state laws and ...


    By IWA Publishing

  • Risk sharing in hydropower development: case study of the Chukha Hydel Project in Bhutan

    The Himalayan rivers have an enormous hydropower potential that is still not exploited fully for the benefit of the region. Bhutan and Nepal together have an economically feasible potential of 60,000 MW of hydroelectric power generation capacity but are too weak financially to bear the risks associated with the development of their hydro resources alone. India is the only potential market for ...


    By IWA Publishing

  • Evaluation of precipitation forecasts from NOAA global forecast system in hydropower operation

    Forecasts of 10-day average inflow into the Ertan hydropower station of the Yalong river basin are needed for seasonal hydropower operation. Medium-range inflow forecasts have usually been obtained by Auto-Regressive-Moving-Average (ARMA) models, which do not utilize any precipitation forecasts. This paper presents a simple GFS-QPFs-based rainfall - runoff model (GRR) using the 10-day accumulated ...


    By IWA Publishing

  • Capacity optimization of hydropower storage projects using particle swarm optimization algorithm

    A mixed integer optimization model is formulated for capacity optimization of a hydropower storage project with control on reliability of meeting the project's firm energy yield. Particle swarm optimization (PSO) is used as the optimization algorithm, in which the method of sequential streamflow routing is called for objective function evaluations. Two types of problems are studied. The first one ...


    By IWA Publishing

  • Multi-year optimal operation strategy of Danjiangkou Reservoir after dam heightening for the middle route of the south–north water transfer project

    The middle route of the south–north water transfer project (SNWTP) was built to relieve the pressure of increasing water demand in northern China. Serving as one of the major storage systems, optimal operation rules should be proposed promptly for Danjiangkou Reservoir, completed by a heightening project. In this paper, in order to seek out the optimal operation rules for Danjiangkou ...


    By IWA Publishing

  • A CBA model of a hydro project in Sri Lanka

    This study demonstrates an empirical application of a cost benefit analysis for hydro projects, which includes social and environmental as well as economic aspects. The model treats uncertain inputs by specifying them as probability distributions. A proposed hydro project in Sri Lanka is used as a case study. The study uses time variable discount rates related to economic growth and investigates ...


    By Inderscience Publishers

  • Power from closing the Red Sea: economic and ecological costs and benefits following the isolation of the Red Sea

    The closure of the Red Sea at its southern entrance (the Bab-al-Mandab Strait) could well lead to the world's largest hydropower generation, in the order of 50 000 MW. The cost and time-scales involved are beyond normal economical considerations. Macro-engineering projects of this size cause a massive destruction of existing ecologies. On the positive side of the environmental scale, however, are ...


    By Inderscience Publishers

  • Impacts of Danjiangkou reservoir on sediment regime of the Hanjiang River

    With population increase and economic growth, the development of water resources and hydropower resources of the Hanjiang River has been intensified by dam building, and consequently the sediment regime of the Hanjiang River has been altered to some extent. To assess dam-induced alterations in the sediment regime of the Hanjiang River quantitatively, we selected three key hydrological stations ...


    By IWA Publishing

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