distributed wind Articles

  • Wind Energy Production Estimates: Moving Beyond Time Averages

    No need to be a statistician to see that averages are often useful to compare different things. And yet, they often fall short as a true measure of performance. For instance, we use averages to compare the current weather against the climate normals or to get a sense of how our favorite sport team or player is doing. Team (player) statistics are a concise way of combining the scores from many ...


    By AWS Truepower, LLC

  • ´More Stations. More Data. Better Forecasts.´ – the NYS Mesonet

    “More Stations. More Data. Better Forecasts.” – that’s the slogan of New York State Mesonet. The weather observation network consists of a total of 125 weather stations all over the state of New York and Lufft was selected as one of the vendors to support them in capturing the data. All 125 of the weathers stations have the standard instrumentation suite. Of those 125, 17 ...

  • Wind modelling based on wind input data conditions using Weibull distribution

    Weibull distribution can be used to model the wind speed distribution at a particular site and hence, it can help in wind resource assessment (WRA) of a site. By calculating the shape (k) and scale (c) parameters for Weibull distribution, the wind speed frequency curve for a site can be made. Once this wind speed distribution for site is determined, it can be convolved with the power curve for a ...


    By Inderscience Publishers

  • 100 Simple Ways To Save Water

    To improve water conservation install a rain sensor, it turns off your irrigation when it rains. Use a weather-based controller. The use of smart controllers can reduce water usage 24% a year on average. Learn about available rebate programs ...


    By Jain Irrigation, Inc

  • Control of the phytoplankton distribution in the Strait of Gibraltar by wind and fortnightly tides

    CTDefluorescenceeturbidity profiles from two surveys conducted in June and September 1997 were examined in order to evaluate the influence of the predictable fortnightly (spring/neap) tidal cycle and the less predictable wind on the phytoplankton distribution in the Strait of Gibraltar. The injection of the nutrient-rich North Atlantic Water (NACW) in the Atlantic inflowing current is associated ...


  • On the probabilistic distribution of wind speeds: theoretical development and comparison with data

    The probabilistic distributions of wind speed are a critical piece of information needed in the assessment of wind-energy potential, and have been conventionally described by various empirical correlations. Among the empirical correlations, the Weibull distribution has been most popular due to its ability to fit most accurately the variety of wind-speed data measured at different geographical ...


    By Inderscience Publishers

  • Power electronics for distributed and co-generation

    Distributed and Co-Generation has great growth potential, as the world is becoming more energy dependent and energy demanding. Distributed and Co-Generation creates alternative solutions to serve the growing energy market. In this paper, a comprehensive review of the different sources of distributed power is discussed including the main sources of the dispersed generation such as solar energy, ...


    By Inderscience Publishers

  • Reactive power compensation strategies for wind generation in distribution systems: a power quality approach

    This paper studies the impact on the voltage profile of wind energy based generators connected to distribution power systems. Voltage fluctuations arise in distribution levels including noncontrollable primary energy sources because of their corresponding active power injection variations. A number of reactive power strategies have been analysed and compared focusing on the voltage fluctuation ...


    By Inderscience Publishers

  • Developing Decentralised Distributed Generation in Africa

    Many countries in the developed world created power generation networks based upon large centralised power generation stations with significant investment in power transmission and distribution networks. From the African context this has not happened yet there is a huge need to increase power generation capacity. The thought of addressing this through a small number of large gas, ...


    By Clarke Energy

  • A new EE resource: Distributed people

    Energy efficiency is often described as the invisible resource. It improves our energy supply without any of the usual industry trappings: smokestacks, wind turbines, transmission lines and poles. This is one of its virtues.But efficiency’s invisibility also causes problems. Because it operates out of sight – inside walls, underneath lampshades, and in factory motors — efficiency tends to attract ...

  • Operation and control of multiple Distributed Generation systems in the microgrid

    This paper investigates the operation and control of multiple Distributed Generation (DG) systems interconnected to the utility in the form of microgrid. The developed model of the microgrid consists of microturbine generation system, converter-based DG system with stiff DC source, synchronous-generator-based DG system and wind power system with induction generator. The Simulation model of the ...


    By Inderscience Publishers

  • Assessing the benefits of a provision of system services by distributed generation

    Distributed Generation (DG) units are said to have the potential to become an integral part of the future power systems. Today, DG units are characterised by high specific investment costs, but nevertheless are politically promoted because of their high degree of energy efficiency and their capability of reducing the current dependency on fossil fuels. However, at longer term DG units have to ...


    By Inderscience Publishers

  • Arctic snow distribution patterns at the watershed scale

    Watershed-scale hydrologic models require good estimates of spatially distributed snow water equivalent (SWE) at winter's end. Snow on the ground in arctic environments is susceptible to significant wind redistribution, which results in heterogeneous snowpacks. The scarcity and quality of data collected by snow gauges provides a poor indicator of actual snowpack distribution. Snow ...


    By IWA Publishing

  • Why smart utilities are embracing distributed electricity

    Power companies that take initiative now can position themselves for a bright future in tomorrow’s clean energy economy The growth of distributed energy generation, particularly in the form of solar energy, leaves the aging, monopolistic electric utility system a daunting choice: Come out swinging in defense of the status quo or boldly jump into the cockpit, put on the ...


    By Ensia

  • Community Wind Power for Renewable Income

    CONSIDERING its incredible history and environmental benefits, wind power is one of the most underutilized sources of renewable energy. Stretching back as early as 200 BC, communities have been harvesting the wind for power. However, the scale and popularity of wind power is only now starting to reach critical mass as concerns of climate change rise and energy usage continues to soar. While ...


    By BioCycle Magazine

  • Lightning protection optimization for large wind turbines

    Electro-magnetic fields adjacent to the lightning current path in wind turbine generators are analyzed. The method of moments is used to analytically describe the transient distributed electro-magnetic field caused by a lightning strike. A simulation tool using the method of moments is presented. The electromagnetic field distribution during a lightning strike in a wind turbine hub is analyzed in ...


    By Windsens GmbH

  • Development of Economic Indices for Renewable Energies and Distributed Generation in the Asia-Pacific Region

    Renewable energies are gaining their market share, reflecting on improved economic feasibility; however, most renewable energies, except for wind, hydro, and biomass, are still costly energy options compared to conventional energy sources. In this activity, developments of economic indices will be explored, and can be used as criteria in prioritizing development and deployment of renewable ...

  • Development and opportunities of distributed generation fuelled by renewable energy sources

    The key issue to the widespread of distributed generation (DG) is the ability to safely, reliably and economically interconnect new energy sources with the existing distribution network 'utility grid'. With the rising prices of petroleum fuel sources, a high expected penetration of renewable energy sources (RES) such as wind and solar as part of the emerging DG fuel resource are expected to be ...


    By Inderscience Publishers

  • An introduction to reactive power compensation for wind farms

    The paper summarises the refereed contributions of seven articles reviewed for publication in the IJETP – Special Issue on "Reactive compensation for wind farms". The main goal of the special issue is to provide a forum to exchange information on the reactive power compensation requirements for wind farms and introducing possible price mechanisms for today's deregulated power industry. ...


    By Inderscience Publishers

  • A street canyon model for low wind-speed conditions

    The aim of the present work is to develop a simple model in order to calculate the vertical pollutant distribution inside a street canyon at low wind speed. It is aimed at providing a relationship between traffic emission and the pollutant in excess. It is assumed that street ventilation is controlled by the vertical turbulent diffusion. The diffusion coefficient Kz must be known. In the ...


    By Inderscience Publishers

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