hydroelectric power Articles

  • Hydroelectric Power Stations and Fish Migration

    Hydroelectric power stations in rivers produce potential injury to downstream migrating fish as they pass through the turbines. Highest mortality rates are found for eel and ranges between 15 and 38%. The impact of fish passage through a series of hydroelectric power stations in one river can be very high. This might be the case for river systems like the river Rhine or Meuse where many ...


    By Sweco Nederland BV

  • 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

  • The institutional co-evolution in diffusion of hydroelectric power technology

    The introduction and significant momentum on diffusion of wind power as a new technology for energy production involve a push for changing the institutional framework in the energy sector. The introduction of hydro (electric) power technology and the following institutional change process may be compared to the introduction of wind power 90 years later. In this paper, the main focus is on the ...


    By Inderscience Publishers

  • 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

  • Monitoring Hydroelectric Dam Sumps - Case study

    The Situation Hydroelectric dams produce electric power by harnessing the force of the water flowing through the dam. There are numerous sources for oil spillage: The hydroelectric turbines are lubricated by lubrication oils. The very large water control valves are normally hydraulic powered and are lubricated with various greases and oils. Vehicles ...

  • Evaluation of melioration area damage on the river Danube caused by the hydroelectric power plant ‘Djerdap 1’ backwater

    Construction of the hydroelectric power plant (HPP) ‘Djerdap 1’ formed a backwater effect on the Danube and its tributaries, which had an inevitable influence on groundwater level, causing it to rise and thus creating additional threats to all melioration areas on more than 300 km of the Danube riversides, as well as on the riversides of its tributaries: the Sava (100 km) and the ...


    By IWA Publishing

  • 1997 IFAI award devil Canyon hydroelectric power plant, San Bernardino, California - Case Study

    Constant demands for water and electricity in heavily populated areas in California prompted the Devil Canyon Power Plant project. Constructed from 1969 to 1974, the power plant is located at the San Bernardino Mountains near the mouth of Devil Canyon. With two pipelines carrying water from Silverwood Lake, an elevation drop of almost 1500 ft (460 m) between the lake, and four Pelton wheel ...


    By Presto Geosystems

  • Economic analysis of the environmental and social impacts of the Nam Theun 2 Hydroelectricity Power Project

    The Nam Theun 2 Hydroelectricity Power Project (NT2), located in the Khammouane Province of central Lao's People Democratic Republic (Lao PDR), aims to produce electricity with a generating capacity of 1,070 MW. Most of the electricity generated (995 MW) will be sold to the Electricity Generating Authority of Thailand (EGAT) and the remaining (75 MW) sold to Electricite du Laos (EDL). The primary ...


    By IWA Publishing

  • Lake Dorothy Hydroelectric Dam Completion Benefits Alaska Residents

    The Lake Dorothy Hydroelectric Project, located near Juneau Alaska, was begun in 2006 and completed in 2010.  Karl Vander, of North Pacific Erectors, was the Project Manager.  North Pacific Erectors, a General Contractor for ...


    By SRS Crisafulli, Inc.

  • Continuous Quality Surveillance Scheme to minimize the Cost Of Poor Quality in the construction of hydroelectric powerplants - IDRA 2012

    During the construction of hydroelectric plants, poor quality can have a hugely negative impact on construction time, on plant performance and on safety. We propose a method of keeping under control the manufacturing of the most critical components, such as pressure parts, rotors and valves, with a view to minimizing the Cost of Poor Quality (COPQ). This method is known as the Continuous Quality ...


    By Inspecteam Hydro

  • Scalewatcher saves the national power corporation in the philippines $350,000 a year

    The National Power Corporation (NPC), the largest provider and generator of electricity in the Philippines, is saving over $350,000 a year in improved efficiency, downtime and maintenance costs following the installation of the Scalewatcher® computerized, electronic, water-conditioner from Scalewatcher North America.  Installed in the company’s Agus 6/7 Hydroelectric Plant Complex ...

  • A novel technique proposed for automatic control of small hydro power plants

    A new scheme is proposed for the speed control of hydro turbines. Power can be controlled by controlling the rotary motion of the spear valve or linear motion of the sluice gate. In this paper, necessity for speed control, various function of governors, types, speed regulation of micro-hydroelectric power plants, functional block diagram of power generation and control system general models for ...


    By Inderscience Publishers

  • Effects of biofuels vs. other new vehicle technologies on air pollution, global warming, land use and water

    The use of biofuels, particularly ethanol, has expanded in the last few years based significantly on the premise that biofuels replacing fossil fuels may reduce global warming and air pollution problems. While this claim is still being debated, the real comparison should be between biofuels and other emerging technologies. It is found here that both corn-E85 (85% ethanol/15% gasoline) and ...


    By Inderscience Publishers

  • Hydropower - Practice and Application

    Hydroelectric energy is the most widely used form of renewable energy, accounting for 16 percent of global electricity consumption. This book is primarily based on theoretical and applied results obtained by the authors during a long time of practice devoted to problems in the design and operation of a significant number of hydroelectric power plants in different countries. It was preferred to ...


    By IWA Publishing

  • Decision-making under risk and uncertainty

    Fuzzy sets and interval analysis tools to make computations and solve optimisation problems are presented. Fuzzy and interval extensions of Decision Theory criteria for decision-making under parametric uncertainty of prior information (probabilities, payoffs) are developed. An interval probability approach to the mean-value criterion is proposed.Keywords: fuzzy sets, interval analysis, ...


    By Inderscience Publishers

  • The ABCs of small hydro upgrade and automation

    Abstract - Small hydroelectric is increasingly depended on to provide regional power capacity, as municipalities seek more sustainable sources of energy. Yet, hydroelectric or hydro power has some negative perceptions. Other sustainable sources of energy like wind and solar power are early in their equipment and technology life cycles. Hydroelectric facilities are typically older and operate with ...


    By Eaton Corporation

  • 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

  • Small hydropower projects and sustainable energy development in Sri Lanka

    Sustainable development has evolved to encompass three major viewpoints: economic, social and environmental. Given the wide-ranging potential impacts of energy on national sustainable development, we review the linkages between these two topics. In the Sri Lanka case study presented here, the Sustainomics framework is used to assess the role of small hydroelectric power projects in sustainable ...


    By Inderscience Publishers

  • 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

  • Geothermal Energy Technologies

    Technology Overview   Nowhere is the raw power of geothermal resources more evident than at the Old Faithful geyser at Yellowstone National Park. (Joel Renner)  Geothermal energy is natural heat from the Earth's interior where temperatures reach greater than 7000°F. The heat is brought to the surface as steam or hot water—created when water flows through heated, permeable ...


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