large hydropower Articles

  • 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

  • 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

  • Large-scale hydropower system optimization using dynamic programming and object-oriented programming: the case of the Northeast China Power Grid

    This paper examines long-term optimal operation using dynamic programming for a large hydropower system of 10 reservoirs in Northeast China. Besides considering flow and hydraulic head, the optimization explicitly includes time-varying electricity market prices to maximize benefit. Two techniques are used to reduce the ‘curse of dimensionality’ of dynamic programming with many ...


    By IWA Publishing

  • Hyporheic water exchange in a large hydropower-regulated boreal river – directions and rates

    Widespread river regulation is known to modify river-aquifer interactions, influencing entire watersheds, but knowledge of the hyporheic flowpath along regulated rivers is limited. This study measured the hydraulic conductivity of the river bed and the aquifer, water levels and seepage fluxes in the heavily regulated Lule River in Northern Sweden, with the aim of characterising water exchange ...


    By IWA Publishing

  • Control systems for small hydropower plants: a review

    Hydropower is emerging as a major contributor to world energy requirement. It is inexhaustible, clean and has many other benefits like flood mitigation, water supply, irrigation, etc. However, large-scale hydropower generation suffers from inherent disadvantages, such as massive financial outlays, long gestation periods, geological surprises, environmental factors and rehabilitation of the ...


    By Inderscience Publishers

  • 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

  • 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

  • The potential impacts of climate change on hydropower generation in Mid Wales

    Hydropower is a potential large source of electricity supply in Wales. The Upper River Severn in Mid Wales is a typical stream where a high head hydropower scheme could be developed and the river system at Plynlimon has some of the longest records for weather and flow in Wales. A micro-hydropower potential of 99 kW is demonstrated at Plynlimon and the potential impacts of climate change are ...


    By IWA Publishing

  • The impacts of climate change on a Norwegian high-head hydropower system

    Hydropower is the most important renewable energy source for electricity in Norway. However, it is the most vulnerable resource to climate change. Despite the importance of hydropower and its vulnerability to climate change, many studies have been mostly concerned with large-scale resources assessment. This study aims to address the climate change impacts on the scale of a single hydropower ...


    By IWA Publishing

  • Energy recovery potential using micro hydropower in water supply networks in the UK and Ireland

    The supply and treatment of water is a highly energy intensive process, resulting in large amounts of greenhouse gas emissions as well as incurring large economic costs. Both governments and water service providers worldwide recognise the need for more sustainable water supply systems. In recent years, the use of hydropower turbines within water supply networks has been shown as a viable option ...


    By IWA Publishing

  • New reports reveal the human and financial costs of large-scale land acquisitions

    The Rights and Resources Initiative (RRI), a coalition of groups working for the rights of rural people to access and use their local natural resources, recently released two reports on the state of large-scale land acquisitions and investments, also known as land grabs. The reports looked at the financial risk associated with international land investments ...


    By Worldwatch Institute

  • Social capital in large-scale environmental collaboration: the case of the Platte River Recovery Implementation Program

    Environmental collaborative governance arrangements have the potential to build social capital, leading to long-term cooperation among parties with a history of conflict over water use, in particular in irrigation, hydropower production and riverine wildlife habitat. Previous research on social capital in the context of collaborative governance has emphasized small-scale grassroots initiatives ...


    By IWA Publishing

  • Website offers global view of small hydroelectric projects

    It is now easier to access reliable data on small hydropower projects globally following the launch of a website designed to promote this technology, says a UN body. The UN Industrial Development Organization ...


    By SciDev.Net

  • 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

  • Freshwater, climate change and adaptation in the Ganges River Basin

    Climate change is one of the drivers of change in the Ganges River Basin, together with population growth, economic development and water management practices. These changing circumstances have a significant impact on key social and economic sectors of the basin, largely through changes in water quantity, quality and timing of availability. This paper evaluates the impact of water on changing ...


    By IWA Publishing

  • Analysis of Development Course of Artificial Sand Making Technique

    In the artificial sand and stone material production system, the sand making technology is one of the most important technologies, and the sand making equipment is the most equipment because the performance of the sand maker and the reasonability of the sand making technology influence the investment of the whole artificial sand and stone material processing system and the quality of the ...

  • Implications of climate change for water resources development in the Ganges basin

    This paper presents the first basin-wide assessment of the potential impact of climate change on the hydrology and production of the Ganges system, undertaken as part of the World Bank's Ganges Strategic Basin Assessment. A series of modeling efforts – downscaling of climate projections, water balance calculations, hydrological simulation and economic optimization – inform ...


    By IWA Publishing

  • REN21 Renewables 2015 Global Status Report - Key Findings

    There has been a rising awareness worldwide that renewable energy and energy efficiency are critical not only for addressing climate change, but also for creating new economic opportunities and for providing energy access to the billions of people still living without modern energy services. Over the past decade, and particularly in recent years, advances in renewable energy technologies, global ...


    By REN21 Secretariat c/o UNEP

  • 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

  • Upcoming EU electricity and gas directives should be changed to support EU`s new energy and climate policies

    It is important that the coming electricity and gas market directives ensures that renewable energy is given priority in the electricity and gas networks. This is both important when the energy is sold from local producers to the network and when the network is used for transport of energy from a renewable energy production unit to its owners. It applies to both electricity and gas networks, and ...

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