Wind Turbine Performance Articles
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Wind Turbine Asset Management – Repowering Old Fleets
A talk on efficient wind turbine asset management is incomplete without answering the question; ‘what happens to turbines after their useful life?’ Dismantling them is easy. And yes, it is an option. But with this great weather, why would you?! As most of the world’s first-generation turbine fleets reach their end of life, the great minds in wind want to make sure they have a ...
By Powerhub
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Changing the Business Climate in 2015
The business of climate change has changed. Six years ago, when an international climate treaty in Copenhagen seemed distinctly possible, there was still a discernible gap between the concept of a low-carbon global economy and the capital market’s ability to deliver it. Nascent and costly clean energy technologies, skepticism of climate science and a still deeply-embedded reliance on coal ...
By Ceres
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The Real Cost Associated With Neodymium Wind Turbines
According to a research organized by a group of UK scientists, it is predicated that 15% of the country’s energy requirements in the year 2020 are expected to come from renewable energy sources. They have also considered about the wind farms that are popping in every corner of the country to come into this conclusion. These reports have created several contradictions among people as well. ...
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World Wind Power Poised to Bounce Back after Slowing in 2013
At the end of 2013, the wind farms installed in more than 85 countries had a combined generating capacity of 318,000 megawatts, which would be enough to meet the residential electricity needs of the European Union’s 506 million people. New data from the Global Wind Energy Council show that wind developers built 35,000 megawatts of new generating capacity worldwide in 2013. This was down ...
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Performance estimation of HAWT blade using NACA airfoils
Wind energy is one of the developing resources of renewable energy. In order to increase the use of wind energy, development of wind turbine blade with higher power coefficient plays a vital role. The work being presented here is to give new design of blade for VESTAS V82–1.65MW (HAWT). In this work, NACA airfoils are used for the determination of aerodynamic performance characteristics of ...
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A comparative study on the grid integrated wind energy conversion systems (WECS) using different generator models
A huge number of wind generators are going to be connected with the existing network in the near future. Therefore, it is necessary to analyse various models of wind energy conversion systems (WECS) for the purpose of studying the impacts upon grid. This paper presents comparative study on grid connected WECS having two different wind turbine generator systems (WTGS): model 1 [WTGS having doubly ...
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Integration of embedded generation in local grid using STATCOM
The renewable sources of energy are being connected to the local distribution system/local grid leading to embedded generation. As these sources are intermittent in nature, they impose technical challenges in the power system operation which include power quality related problems of local grid. The performance of the system has to be evaluated while connecting these sources to the local ...
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Renewable energy and the green economy: Green Energy and Green Economy Act, 2009
Ontario's Green Energy and Green Economy Act, 2009 (the 'Act') received Royal Assent on May 14, 2009. The Act's aim is to foster the growth of renewable energy projects, promote a green economy and energy conservation and to encourage the efficient use of energy. Its scope equals its intended impact on Ontario's energy sector: both are substantial. To realize its objects, the Act creates the ...
By McMillan LLP
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The power coefficient of windmills in ideal conditions
The windmill efficiency, also designated as the power coefficient, is defined as the ratio of the actual power output to the power present in the free stream of a fluid flowing through the same cross-sectional area. There are remarks in the literature to the effect that the power coefficient of actual windmills is very close to the ideal power coefficient or Betz limit of 0.5926. In this paper, ...
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