Hydropower Articles

  • Hydro Plant Redevelopment - Case Study

    Many of our recent projects in the United States and Canada have been related to the redevelopment of abandoned structures or related to an existing plant upgrade. Shown below are a few project ...


    By OSSBERGER GmbH + Co. KG

  • Minimum Flow Units - Case Study

    Environmental regulations are becoming more stringent and the minimum by-pass flow requirements are generally increasing in North-America. Many of our small hydro technologies are perfectly suited for this type of application whether it is to replace an existing pressure reducing valve or implement a new turbine upstream of the by-passed reach of an existing hydro plant. Shown below is an example ...


    By OSSBERGER GmbH + Co. KG

  • Auxiliary Service Units on Large Hydro Facilities - Case Study

    Ossberger Hydro also has technologies that are well adapted to implement on larger hydroelectric facilities to provide power for auxiliary services whether it is mechanical pumps for oil circulation on main turbine bearings, managing auxiliary electric loads, or even provide black start capability in case of emergencies. Project: LG-1 Client: Hydro Quebec Location:  James ...


    By OSSBERGER GmbH + Co. KG

  • Heudreville-sur-Eure (F) - Case Study

    Located in the French river "l'Eure"  two LANDY hydropower screw turbines are installed to generate sustainable energy using the actual head of 2 meter. Both screws dimension 3.8 meter diameter. Location: Heudreville-sur-Eure, France Type of screw: with casting mould Capacity: 2 x 7.45 m3/sec Head: 1.95 m Power output: 2 x 108 kW Year: ...


    By Landustrie Sneek BV

  • River Dommel (NL) - Case Study

    In the spring of 2016 the construction of a new hydropower plant in the Dommel river near Sint-Michielsgestel started. The existing dam in the river is equipped with a Landustrie hydropower screw and will generate renewable energy for approximately 200 households. The Dommelstroom project is the first cooperative hydropower power plant in the Netherlands, initiated by Bram and Jan Taks, father ...


    By Landustrie Sneek BV

  • Windsor Castle (UK) - Case Study

    Early September 2011 two 40-ton Archimedes hydropower screw turbines were transported from Sneek, The Netherlands to the royal Windsor Castle, UK. Both screws are installed at Romney weir on the River Thames and power both the Royal Castle as well as 400 - 500 local households. The Landy screws dimension 4 meter diameter, 6 meter long and capacity 150 kW. Unique feature of each ...


    By Landustrie Sneek BV

  • Linton Lock (UK) - Case Study

    At Linton Lock on the River Ouse between York and Harrogate (North Yorkshire) a LANDY hydropower screw is used to generate sustainable energy, in a fish-friendly way. The screw dimensions 3 meter diameter and 8.5 meter length. It concerns an open compact Archimedes screw, which requires minimal civil work on site. Location: Linton Lock, York, UK Type of screw: ...


    By Landustrie Sneek BV

  • Hirschthal - Case Study

    In Hirschthal (Switserland) a LANDY hydropower screw is positioned adjacent to a rubber dam (head 3.5 m). The screw generates energy for some 100 house holds whereas surplus is fed to the grid. The screw dimensions 2.8 m diameter and 10 m length. Location: Hirschthal, Switserland Type of screw: with steel casting mould Capacity: 3.5 m3/sec Head: 3.5 m ...


    By Landustrie Sneek BV

  • 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 ...


    By IWA Publishing

  • 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, ...


    By IWA Publishing

  • Join a free webinar on Balkans Hydropower investment potential

    Join free webinar on the investment potential of hydropower in the Balkans Learn more about the hydropower investment potential of Balkan countries, as well as industry development plant at the webinar held in the run up to the international Summit and Exhibition "Hydropower Balkans 2017". Register for the webinar: ...


    By Vostock Capital

  • Extended multi-objective firefly algorithm for hydropower energy generation

    Classical methods have severe limitations (such as being trapped in local optima, and the curse of dimensionality) to solve optimization problems. Evolutionary or meta-heuristic algorithms are currently favored as the tools of choice for tackling such complex non-linear reservoir operations. This paper evaluates the performance of an extended multi-objective developed firefly algorithm ...


    By IWA Publishing

  • Research on joint generation scheduling of cascade hydro plants in the dry season

    As more and more reservoirs are built, concentrated water releasing in the dry season will bring about additional flow compensation and the joint operation of cascade hydro plants is quite important. This paper discusses the water level decline strategy of four cascade hydro plants in the Jinsha River and analyses the relationship between guaranteed output and total power generation. ...


    By IWA Publishing

  • Framing the Brahmaputra River hydropower development: different concerns in riparian and international media reporting

    Development of the Brahmaputra River, which links China, India and Bangladesh, has been hindered by significant challenges, particularly political challenges. News reports can mirror the perceptions of political actors, but are, owing to the complexity of the issue, complicated and unstructured. We present a comparative content analysis of the overall framing in news reports of the Brahmaputra ...


    By IWA Publishing

  • How to make hydropower more environmentally friendly

    Hydropower provides 85 percent of the world’s renewable electricity, but comes with a hefty environmental price tag. Here’s what some are doing to fix that. Humanity got its first large-scale electricity thanks to hydropower. On Aug. 26, 1895, water flowing over Niagara Falls was diverted to spin two generators, producing electricity to manufacture aluminum and carborundum. Since ...


    By Ensia

  • Optimal control of reservoir release temperature through selective withdrawal intake at hydropower dam

    This study is motivated by the need to understand the temperature dynamics and warm-water temperature withdrawal. This study also recognizes the need for an environmental assessment of the proposed temperature control schemes at New Fengman Dam. An unsteady three-dimensional (3D) non-hydrostatic model is used in the present study to predict the hydrodynamics and thermal dynamics in the forebay ...


    By IWA Publishing

  • Powering Renewable Programs: The Utility Perspective

    When considering how to build out a renewable energy portfolio, there are a lot of factors and many points of view to consider. For purposes of this narrative, we will take the point of view of the electric utility itself. Your electricity providers are quite familiar with the concept of a “smart grid.” According to the Department of Energy (DOE), a smart grid “generally refers ...


    By Smart Grid Observer

  • 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

  • Idaho Water District’s new Hydroelectric project - case study

    This Irrigation District north of Twin Falls installed a new run of the river hydroelectric facility. In order to protect their new turbines, they installed this Traveling Water Screening System. The majority of debris consists of weeds, tumbleweeds, aquatic plants and urban debris. The 5 screens at this location drop debris on a 60’ long conveyor. The conveyor carries the debris to an ...


    By International Water Screens

  • No Place Is Too Far

    The remote location of hydropower stations is often a great challenge when major repair work is necessary. The refurbishment of a large generator in the Scottish Highlands shows how Sulzer finds cost-effective service solutions even in places miles from nowhere. Much of the UK hydroelectric capacity was built during the 1950s. These installations have performed extremely well, especially ...


    By Sulzer Ltd.

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