Vertical Axis Wind Turbine Market - Global Industry Analysis, Size, Share, Trends, Analysis, Growth and Forecast 2015 - 2023

An increasing global focus towards installation of renewable energy has led to a flurry of vertical axis wind turbine designs being introduced into the marketplace. Although nearly all of the commercial scale wind turbines currently in operation are horizontal axis ones, with the advent of new technologies vertical axis wind turbine may be an attractive alternative in the future. The primary difference of a vertical axis wind turbine from a horizontal axis one is that the primary rotor shaft is set vertically while all the major generation components are placed at the turbine base. Currently there are three primary designs for vertical axis wind turbine: the savonius model, the darrieus model and the giromill model. The reason why vertical axis wind turbines are witnessing high levels of R&D activity in the recent past is the definite advantages they provide over conventional horizontal axis turbines.

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One of the major advantages is that vertical axis wind turbine do not require any wind sensing or orientation mechanisms in order to generate electricity. This significantly reduces costs of manufacturing the turbine. Also as the major power generating components such as the gearbox and generator are located towards the base of the turbine, maintenance and repair activities on vertical axis wind turbine are relatively more convenient. Horizontal axis turbines have the vital components located on top of the tower structure which results in significant difficulties and safety hazards for repairmen. These vertical axis wind turbine also claim to require lesser wind to generate an equivalent amount of energy, and can hence be placed at lower altitudes where the wind velocity is generally lower. Overall numerous prospects of utilizing vertical axis wind turbine in small scale decentralized applications are being explored.

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