Hydropower Articles

  • 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

  • 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

  • Case Study - Flow Measurements for Control of 98 MW Hydroelectric Project District of Machu Picchu Peru

    The Santa Teresa hydroelectric project is owned and operated by Luz Del Sur, a subsidiary of Sempra Energy. The plant is located near the world heritage site of Machupicchu, high up in the Peruvian Andes. The intake for the project is on Río Vilcanota, and a flow of up to 61m³ per second passes through a 4km network of tunnels and pipes to two Francis turbines. The ...


  • 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

  • Study: 100% Renewable Electricity System is the Cheapest Option for South America

    Transitioning to a fully renewable electricity system is possible for South America by 2030. A study by Lappeenranta University of Technology (LUT) and VTT Technical Research Centre of Finland Ltd. also shows that a 100 percent renewable system (100% RE) is the cheapest electricity production option and can be achieved with very little energy storage. "South America has a unique renewable energy ...


    By Smart Grid Observer

  • 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

  • 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 Management Ltd

  • Understanding India-Pakistan water politics since the signing of the Indus Water Treaty

    On 19 September 1960, the Indus Water Treaty (IWT) was signed between India and Pakistan, presumably resolving the conflict of Indus water sharing. Nevertheless, over the years the conflict has re-appeared, dragging both the riparian states into confrontation. This paper explores the reasons that lead to conflict despite the Indus water sharing having already been resolved by the IWT. Analysis ...


    By IWA Publishing

  • 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 ...


    By IWA Publishing

  • 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 ...

  • Hydropower installation

    DSEP100 Mains Decoupling Relays for hydropower projects in remote locations in the Cumbrian Lake District, UK.  Old decommissioned water wheels in Ambleside, Blencathra and Langdale have been recently refurbished and brought back into use as sophisticated hydropower turbines which are now working in parallel with the grid, ...

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