wind turbine production Articles

  • Productivity of small wind turbines for various wind potentials conditions: application in Bulgaria and Corsica

    Less or more accurate power curve models are generally used to simulate the wind turbine electrical production versus the available wind speed. However, if such models are adapted to large machines, this is not the case for small ones. The objective of this paper is to study the impact of different small-scale wind turbines power curves and wind distributions on the electrical production. An ...


    By Inderscience Publishers

  • Analysis of wind power in Danish electricity supply, 2005-2007

    It is frequently said that wind power covers about 20% of electricity consumption in Denmark. The correct statement is that production of electricity by Danish wind turbines corresponds to about 20% of electricity consumption. A considerable fraction of the energy produced by wind turbines is exported to neighbouring countries and therefore is not used in Denmark. But how does one know that the ...


    By Inderscience Publishers

  • Farm in Ayrshire, Scotland

    This Ayrshire farm is a busy livery yard and stud which has produced 120,000kWh of electricity in its first three years. The site has electricity requirements for lighting and equipment such as a horse walker. The main farm house and a self-catering cottage also operate an electrical heating system. Key objective: To reduce energy bills Background The owner ...


    By Gaia-Wind Ltd.

  • Life cycle assessment of a 150 MW offshore wind turbine farm at Nysted/Roedsand, Denmark

    The purpose of this life cycle assessment (LCA) was to illuminate and describe the potential environmental impacts caused by an offshore wind turbine farm (WTF) throughout its lifetime and use this knowledge in the planning and improvement of future WTFs. The LCA was based on experience from the LCA on Danish electricity and district heating [1] as well as the offshore WTF project at ...


    By Inderscience Publishers

  • Eco House, Lanarkshire

    A Gaia-Wind turbine is the principal wind energy source in this eco house in Scotland. The house is all electric, consuming 50% of produced energy, and offsets 16 tonnes of CO2 annually. Average annual energy production: 28,000 kWh Background Mr Taylor is an architect by profession. He designed his own eco house incorporating a Gaia-Wind turbine as the principal wind ...


    By Gaia-Wind Ltd.

  • Renewable energy production issues with the Cape Cod offshore wind energy programme

    This paper evaluates the first offshore wind farm proposal in the USA. It is being put forward by Cape Wind Associates, a Boston-based firm that wishes to build 170 turbines five miles offshore in Nantucket Sound. The proposed development would supply up to 95% Cape Cod's energy needs and 2% of the energy requirements for the eastern New England region, preventing the need for additional fossil ...


    By Inderscience Publishers

  • Wind energy today and in the 21st century

    Wind energy is the most promising of the new renewable sources of energy. By the end of 1998, the global installed capacity of modern grid connected wind turbines was some 10,000 MW, and the growth rates of installations worldwide are 30%-40% annually. The cost of wind energy was reduced by 30% between 1991 and 1997 and the cost reduction is foreseen to continue. This article reviews the reasons ...


    By Inderscience Publishers

  • The effect of ocean waves on offshore wind turbines

    The Ocean has a varying surface roughness where the roughness length is determined by the characteristics of the waves. In this paper, a method is established where the roughness length of the ocean is calculated from the wind speed and the fetch length. The fetch length depends on the wind direction and a case study is performed for a wind turbine exposed to wind blowing in two opposite ...


    By Inderscience Publishers

  • Hansen transmissions - wind turbine gearbox testing with PULSE

    The Wind Energy Market Wind energy is one of the fastest growing power generation technologies. The level of annual installed capacity has grown at an average rate of 27.6% p.a. for the past five years. High fuel prices and increased focus on global warming and renewable energy resources have contrib- uted to an increased investment in the development of wind technology over the last three ...

  • Analysis of vertical wind shear in the Southern Great Plains and potential impacts on estimation of wind energy production

    This paper describes the analysis of near-surface wind speeds in Western Oklahoma. The goals of this research are to characterise the nocturnal low-level jet (LLJ) in the region, and to assess the impact wind variability, vertical shear and the LLJ on wind energy calculations. Results show the seasonal variability in wind characteristics as well as in the vertical wind shear, and also illustrate ...


    By Inderscience Publishers

  • Power curve measured and verified – Case Study

    In 2010 RSE SpA (Energy System Research Inc.) within a Program Agreement with the Italian Ministry of Economic Development started a measurement campaign on a Libellula wind plant installed in Tuscany. The campaign lasted 1 ½ years and during this time RSE measured the turbine’s power curve following the requirements of the relevant IEC Standard ...


    By Aria s.r.l

  • GE, Harbin form joint venture to market wind turbines in China

    GE Energy (Atlanta, GA) announced that it has formed a joint venture with China’s Harbin Electric Machinery (HEC) to produce GE-designed wind turbines for sale in the Chinese wind energy market. Anticipating a six-fold increase in China’s wind power capacity by 2020, the joint-venture company will produce turbines for both terrestrial facilities and offshore wind farms. GE ...

  • Farm in Yorkshire Wolds, near Hull

    A 260 acre family-run arable farm in England. Prolonged spells of wind make this site an ideal location for a wind turbine. Project cost: £50,000 - Best monthly production: 3164 kWh - Estimated payback time: 6-7 years Background Mount Airy Farm is aptly named: the 260 acre family-run, arable farm on the Yorkshire Wolds near Hull enjoys prolonged spells of wind ...


    By Gaia-Wind Ltd.

  • The McGowans, Perthshire, Scotland

    The McGowans’ Gaia-Wind turbine powers their water bore hole; cattle sheds; and farmhouse and has given them control over their rising electricity bills. Purchased turbine: March 2010 Average annual energy production: 21,170 kWh Predicted payback period: 5-6 years “We own a mixed livestock and arable farm in Perthshire, Scotland. About two years ago ...


    By Gaia-Wind Ltd.

  • Drones for Wind Turbine Inspection

    Unmanned Aerial Vehicles and Inspection Services for Wind Turbines: Global Market Assessment and Forecasts By the beginning of 2015, there were nearly 270,000 individual wind turbines operating globally. The more than 800,000 blades spinning on these turbines are battered by the elements over time and gradually wear out. Deterioration can cause reduced energy ...

  • Wind turbine controlling of the future

    Higher, more robust, more reliable: Parallel to the growing requirements for wind turbines, the requirements for monitoring sensors grow as well. But how can wind sensor manufacturers fulfil these wishes? And how should a future wind sensors look like? After analysing the current conditions and trends on the wind energy market, our CEO Klaus Hirzel compiled a wish list for future wind sensors. ...

  • 7th Largest wind farm replaces mechanical for Ventus ultrasonic sensors - Case Study

    296 turbines of the AES Corporation are located by Buffalo Gap, Texas, US. With a capacity of 524 MW it's the world's seventh largest wind farm to-date. The article link below provides a summary of how Performance Engineer at AES, Tristan Lee, was able to optimize the performance of its aging fleet using latest in technology, that includes the Lufft Ventus Ultrasonic Wind Speed and Wind ...

  • Rural house and smallholding, Cornwall

    The owners of this smallholding in Cornwall, England, expect a payback time of 5 years from their high energy producing turbine. Project cost: £45,000 - Estimated payback time: 5 years Background Located outside the market town of Camelford, the oweners of this property are commercial and residential builders and developers whose clients include many farms, homes ...


    By Gaia-Wind Ltd.

  • VENSYS Controls Rotor Position on Wind Turbines with TURCK uprox®+ Sensors

    VENSYS wind turbines, built with TURCK uprox®+ Sensors, allow for sufficient wind production even in low wind ...


    By TURCK

  • Multi-criterion optimization of energy management in drinking systems

    In this study, two different energy sources that are connected to a pumped storage water supply system are analyzed: a water and a wind turbine. A water turbine can be integrated in a water supply system in high-pressure locations. Recently, new sources of energy production are being researched and applied due to the increase in the price of conventional energy sources and concerns regarding the ...


    By IWA Publishing

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