Small Hydropower Articles

  • Understanding water-society nexus: insights from Turkey's small-scale hydropower policy

    Turkey's recent venture involving the construction of hundreds of small-scale hydropower projects is a significant trend, both in regard to its contribution to Turkey's hydroelectricity production and the social and environmental impact of these projects at the local level. Turkey's hydropower policy was premised on a conventional understanding of water driven by science, technology, and the ...


    By IWA Publishing

  • Confidence in operational reliability - Case Study

    Double the capacity, fully utilised lorries at last and maximum operational reliability −Smurfit Kappa in Neuburg an der Donau / Germany is very pleased with a channel baling press from HSM. At the corrugated cardboard plant, the “HSM VK 7215” has been pressing cutting waste into bales weighing more than half a tonne since September 2014, thereby ensuring smooth operation of the ...


    By HSM GmbH + Co. KG

  • A small island in the Indian Ocean offers big lessons on clean power

    The Indonesian island Sumba is working to provide 100% renewable electricity to all 650,000 residents by 2025. As the sun sets on the small Indonesian island of Sumba, Danga Beru Haba begins weaving under the glow of a single incandescent lightbulb, the only one in her home. Although she is tired from working dawn to dusk in the fields surrounding her village of ...


    By Ensia

  • Cam correlation analysis using Acoustic discharge measurement

    The low head hydro power plant in Wettingen, Switzerland, is in operation since 1933 and no effective cam optimization has been carried out up to now. The goal of the measuring campaign was to provide data enabling an economic study for a retrofit and upgrade project of the plant and the measurement of the efficiency improvement of turbines after refurbishment. The contribution discusses cam ...


    By HydroVision GmbH

  • Commercial boost for firms that suck carbon from air

    It has long been regarded as one of the more blue-skies solutions to climate change. Now two companies have vastly increased their capability to suck carbon dioxide from the air. One, based in Canada, plans to convert captured CO2 into diesel to fuel buses; the other, in Switzerland, will sell it on to a firm that uses CO2 to boost crop growth in greenhouses. The ...


    By GLOBE Foundation

  • Micro-Hydros Earn First Carbon Revenue in Nepal

    MICRO-HYDROS EARN FIRST CARBON REVENUE IN NEPAL While the rugged mountains of rural Nepal don’t lend themselves to grid-fed electricity, their rivers, lakes, and glacial melt offer plenty of renewable resources for energy. Between 2007 and 2014, over 400 micro run-of-the-river hydropower plants were built by the Nepali government with help from the World Bank as ...


    By DelAgua Group

  • Energy audit in small wastewater treatment plants: methodology, energy consumption indicators, and lessons learned

    Energy audits in wastewater treatment plants (WWTPs) reveal large differences in the energy consumption in the various stages, depending also on the indicators used in the audits. This work is aimed at formulating a suitable methodology to perform audits in WWTPs and identifying the most suitable key energy consumption indicators for comparison among different plants and benchmarking. ...


    By IWA Publishing

  • Mine Restores Basin Capacity with Hydraulic Dredge Case Study

    SRS Crisafulli introduces the Rotomite model 6000-CD Dredge SRS Crisafulli designed and built the self-propelled, steerable, diesel powered all-purpose dredge for both abrasive and soft slurries with a cast alloy pump, and 8” discharge, in the fall of 2013. The dredge was tested at Fisher Sand and Gravel’s pond on Circle Highway northwest of the Company’s Glendive, ...


    By SRS Crisafulli, Inc.

  • Prediction of ungauged river basin for hydropower potential and flood risk mitigation: a case study at Gin River, Sri Lanka

    A hydrologic study was performed for ungauged river basin of Sri Lanka to examine synthetic discharge relations. Rainfall-runoff relationships were used for identifying hydrological conditions of the Gin River basin. The peak discharge achieves within 4.74 hours from the onset of the rainstorm and 11.95 hours take to reach its normal discharge conditions. Stream frequency of the Gin River is ...


    By Inderscience Publishers

  • From very big to very small - Case Study

    Graf Plastics GmbH, at its Teningen plant (fig. 1) manufactures its large-volume Carat underground tanks (fig. 2) for rainwater utilization.The manufacture of the containers ranging up to 6,500 litres produces waste, which is reduced in a single phase to mill material using a WLK 30 Super-Jumbo single-shaft shredder from WEIMA Maschinenbau GmbH in Ilsfeld. Rainwater utilization becoming ...


    By WEIMA

  • Assessing the viability of microhydropower generation from the stormwater flow of the detention outlet in an urban area

    Small-scale hydropower is the generation of electrical power of 10 MW or less from the transformation of kinetic energy in flowing water to mechanical energy in a rotating turbine to electrical energy in a generator. The technology is especially useful when installed with a stormwater infrastructure in countries teeming with abundant rainfall. It is upon this concept that this study is being ...


    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

  • Energy recovery in the water industry using micro-hydropower: an opportunity to improve sustainability

    The water industry as a whole consumes a considerable amount of energy in the treatment and distribution of water and wastewater. Like all sectors of society today, the industry is focusing efforts on reducing its CO2 emissions and improving the sustainability of its systems and practices. One way of achieving this is through the use of micro-hydropower (MHP) installations in water ...


    By IWA Publishing

  • Looking back to look forward

    In 2014 we are celebrating the 100th anniversary of the founding of the Institution of Petroleum Technologists, the oldest of the Energy Institute’s predecessor organisations. We will be publishing throughout the year a series of interviews with eminent figures from the world of energy, reflecting on how the past can inform the future. This month, Walt Patterson FEI takes a radical view of ...


    By Energy Institute (EI)

  • Power estimation and reliability evaluation of municipal waste water and self–excited induction generator–based micro hydropower generation system

    This paper presents power estimation and reliability evaluation of the micro hydro power generation system based on municipal waste water. Self–excited induction generator was used in the developed power plant, situated at IIT (BHU) campus, Varanasi, India. The hydro potential of the waste water flowing through sewage system of the Banaras Hindu University has been determined for annual flow ...


    By Inderscience Publishers

  • Molybdenum(VI) removal by using constructed wetlands with different filter media and plants

    The efficacy and capacity of vertical-flow wetland filters on molybdenum (Mo) removal from wastewater was examined, employing reed (Phragmites australis) and cattail (Typha latifolia) as well as different adsorption granular media. Humus, cinder, modified cinder, as well as pyrite were used as filter media. A synthetic effluent with different concentrations of Mo(VI) at ...


    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

  • Common environmental infrastructure: case study on the management of common effluent treatment plants

    The concept of common environmental infrastructure including common effluent treatment plants (CETPs) became popular in India due to several driving forces. A large number of small and medium enterprises located in industrial agglomerate joined hands in setting up such facilities with financial assistance from government. A study is made on the management of eight CETPs located in different ...


    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

  • 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 ...

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