Why are Horizontal Axis Wind Turbines used other than Vertical Axis?

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Horizontal Axis Wind Turbines (HAWTs) are preferred over Vertical Axis Wind Turbines (VAWTs) primarily due to their higher efficiency, being about 25% more efficient than Darrieus VAWTs and three times more efficient than Savonius VAWTs. HAWTs can also adjust blade pitch, optimizing performance across varying wind speeds, while VAWTs lack this feature. Although VAWTs offer advantages like omnidirectionality and easier access to electrical components at the base, these benefits do not outweigh the efficiency of HAWTs in most applications. The discussion emphasizes that both turbine types are designed for horizontal wind, with HAWTs generally performing better in typical conditions. Overall, the efficiency and adaptability of HAWTs make them the dominant choice in wind energy generation.
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Why are Horizontal Axis Wind Turbines used more often than vertical axis when it looks like a vertical axis has more of an advantage? Please can you explain it simply?
 
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What is the advantage of vertical axis machines over HAWT's (horizontal axis wind turbines)? VAWTs are omnidirectional. But the HAWTs are theoretically about 25% more efficient than a Darrieus rotor and about 3 times more efficient than a Savonius rotor (VAWTs), measured on a frontal area basis..
Another advantage of VAWTs is being able to put all the electrical equipment at the base of the tower, for easy access at ground level.
Bob S
 
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I do not think that there is any advantage of using vertical axis Wind Turbines.By the way, as far as I know, we live in troposphere ,where the wind is of Horizontal ,and it is in stratosphere that wind blows from bottom to top.
 
Both horizontal axis and vertical axis wind turbines are designed for horizontal wind direction. The horizontal axis turbines are the most efficient for specific wind velocities, and because the pitch of their blades is adjustable, are relatively effficient for a large range of wind velocities. Neither vertical axis turbine designs have adjustable pitch blades.
Bob S
 

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