Apr 5, 2013

Advantages and disadvantages of Vertical axis wind turbine

Today our post is about Advantages and disadvantages of vertical axis wind turbine. Vertical axis wind turbine are one whose axis of rotation is vertical with respect to ground. There are many Advantages and disadvantages of vertical axis wind turbine but we have discus few of them


They can produce electricity in any wind direction

Strong supporting tower in not needed because generator, gearbox and other components are placed on the ground

Low production cost as compared to horizontal axis wind turbine

As there is no need of pointing turbine in wind direction to be efficient so yaw drive and pitch mechanism is not needed

Easy installation as compared to other wind turbine

Easy to transport from one place to other

Low maintenance cost

They can be install in urban area

Low risk for human and birds because blades moves at relatively low speed

They are particularly suitable for areas with extreme weather conditions, like in the mountains where they can supply electricity to mountain huts.


As only one blade of wind turbine work at a time so efficiency is very low

They need a initial push to start, this action use few of its own produce electricity

When compared to horizontal axis wind turbine they are very less efficient with respect to  them. this is because they have an additional drag when their blades rotates.

They have relative high vibration because the air flow near the ground creates turbulent flow

Because of vibration bearing wear increase which result in the increase of maintenance cost

They create noise pollution

Guy wires which hold up the machine, need some are to install 


  1. They are only less efficient with some (poorly designed) blade designs. There are many models that do not have much drag going into the wind, and in some cases some have wings that get more power going into the wind.

    This article seems to only talk about one particular style, that is over 50 years old... There has been a lot of improvements in the last 50 years.

    1. Yes you are right there are many improvements made in VAWT but whenever we begin to learn we start with basic. This is my beginning with wind turbine and with the agrce of ALLAH (GOD) we will learn all the new points of VAWT from my blog

      Thanks Mongrel shark for such sincere comment

  2. I am an engineering student. Please contact me as soon as possible via email (karim_hatem72@yahoo.com) because i need help. I am working on VAWT as my degree project.

    1. Ok, I have your request listed, I will contact you in one or two days. Thank you for contacting us.

  3. Hello sir, This is Karthik from chennai, India. I'm an Mechanical Engineering student. As a part of academic curriculum, we are doing a project on VAWT. I kindly request you to help us in solving the problems associated with the design and analysis