hydropower plant Articles
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Energy self-sufficient grain mill using hydroelectricity Finland - Case Study
Pitkäkoski grain mill, located in Kiuruvesi, Central Finland, stands next to an old hydropower plant from the 1930s. The mill itself has been working since the 19th century, and nowadays both the mill and the dam are owned by the current milling ...
By Nocart Ltd.
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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 ...
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A conceptual framework for real time estimation of WFP for small hydroelectric power plant
It is believed that the power sector, particularly hydroelectric power, contributes to a very high consumption of fresh water in terms of evaporation from storage reservoirs. Robust methods of water footprint (WFP) assessment will eventually help in the pricing of water and energy. Conventionally, WFP for hydropower plants is estimated by dividing the gross/net evaporation losses by power ...
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Forecasting monthly energy production of small hydropower plants in ungauged basins using grey model and improved seasonal index
A first-order one-variable grey model (GM(1,1)) is combined with improved seasonal index (ISI) to forecast monthly energy production for small hydropower plants (SHPs) in an ungauged basin, in which the ISI is used to weaken the seasonality of input data for the GM(1,1) model. The ISI is calculated by a hybrid model combining K-means clustering technique and ratio-to-moving-average method, ...
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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 ...
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Lake Livingston Hydropower Plant - Case Study
Project Description The project involves a cut-and-cover derivation tunnel that delivers water to the power house where the turbines are located. All the components of the plant (headrace, Intake, penstock, powerhouse, and tailrace) require earth retaining structures during construction. In general, this type of retaining system is realized with Sheet Pile Walls (SPW) with different types of ...
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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 ...
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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 (UNIDO) and the International Center on Small Hydro Power (ICSHP), a China-based, non-profit body that promotes this form of energy worldwide, launched the site last month (13 February). ...
By SciDev.Net
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Limited adaptive genetic algorithm for inner-plant economical operation of hydropower station
A limited adaptive genetic algorithm (LAGA) is proposed in the paper for inner-plant economical operation of a hydropower station. In the LAGA, limited solution strategy, with the feasible solution generation method for generating an initial population and the limited perturbation mutation operator, is presented to avoid hydro units operating in cavitation–vibration regions. The adaptive ...
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Modeling future changes in the North-Estonian hydropower production by using SWAT
Climate change is altering temperature, precipitation, and other climatic parameters, affecting sectors dependent on water resources, e.g. energy production. The purpose of this study is to analyze the possible influences of climate change on hydropower potential in North Estonia. In Estonian run-of-river hydropower plants, energy comes mainly from water volume. Thus, changes in hydropower ...
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Project - 1.6 MW, NY
Year: 2017 Running Gear: Vertical shaft Kaplan turbine with synchronous generator. Scope: Replacement control system and exciter. Located in upstate NY, this hydroelectric plant was built in the mid-1980s in response to the federal PURPA legislation. The site is well suited to hydropower, with a small labyrinth dam spanning the river banks just above a beautiful cascade into a deep gorge. ...
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Project - 1 MW, NC
Year: 2021 Running Gear: 2 Vertical shaft Francis turbines with synchronous generators Scope: Replacement of control system, exciters, and HPUs Originally part of a large cotton mill complex in North Carolina dating back to the 1800s, this 1 MW hydropower plant stayed in operation into the 2000s, longer than the rest of the declining mill town. The cotton mill itself finally shut down in ...
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Project - 455 KW, MA
Year: 2016 Running Gear: 3 units: Vertical shaft synchronous generator driven by a Francis turbine. Vertical shaft synchronous generator driven by a propeller turbine, and a vertical shaft induction generator driven through a flat belt by a Kaplan turbine. Scope: Replacement control system, switchgear, excitation, wicket gate operators.. Located in Massachusetts, this hydroelectric plant ...
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HE Dubrava, Croatia - Case Study
The road crossing over the dam at the hydroelectric power plant Dubrava is illuminated by our company’s E+ DOVE product range, developed for outdoor, street and urban ...
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Energy Poverty Entraps Economy In Developing Countries
Energy Poverty is lack of access to energy services, mainly electricity for basic needs such as lighting and cooking. Prevalent in the developing countries, the situation is inversely related to the well-being of almost 1.3 billion people worldwide. Around 95% of Sub-Saharan and developing Asia’s population and 84% of their rural dwellers lack access to grid either because the grid cannot ...
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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 Kampung Kalihi, the sarong she is ...
By Ensia
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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 part of the Nepal ...
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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 design will be a one-off. And, more importantly, each will ...
By SciDev.Net
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Holtwood hydroelectric facility - Case study
The Holtwood Dam was built in 1910 and is located on the Susquehenna River in Holtwood Pensylvania. The hydroelectric facility is owned and operated by PPL Generation LLC and is a ten unit facility with an installed capacity of approximately 108 MW. CHC provided two 1350 mm vertical Francis auxiliary units and two synchronous generators to replace two decommissioned units. The new units were ...
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Sherman island generating station - Case study
In 2004, Brookfield installed a new minimum flow turbine at its Sherman Island hydroelectric power facility, located on the Hudson River in Queensbury, NY. CHC provided a 1250 mm axial flow turbine for the new powerplant with a 1250 kW/514 RPM synchronous generator. The new plant can produce up to 1.25 MW of power. PROJECT FACTS 1.25 MW Plant Capacity 1250 mm Axial Flow Propelle Net Head ...
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