ArtsAutosBooksBusinessEducationEntertainmentFamilyFashionFoodGamesGenderHealthHolidaysHomeHubPagesPersonal FinancePetsPoliticsReligionSportsTechnologyTravel

Vertical Wind Turbines

Updated on March 17, 2012
Vertical Axis Wind Turbine (VAWT)
Vertical Axis Wind Turbine (VAWT)

Vertical wind turbines are very similar to the horizontal wind turbines that you and I are accustomed to seeing. Both use the energy produced by the wind to power a generator and gearbox. But vertical wind turbines have their own set of pros and cons.

A vertical wind turbine uses a vertical rotor shaft with the blades around it in a vertical position as well (see picture above). This design has a few key features. It keeps you from having to install a yaw because the turbine doesn't need to be pointed into the wind. This design also allows the turbine to start generating power in wind speeds as low as 6 mph the turbines make less noise than horizontal wind turbines. The main drawback of the design is the excess stress put on the blades from wind loading changes. This makes the blades more likely to fail from fatigue.

Certain designs also use guy-wires to support the turbines. These guy-wires can be mounted lower or higher, but both have their own set of issues. Mounting the guy-wires lower on the turbines causes stress on the bottom bearing causing it to wear out sooner than it should. Mounting the guy-wires higher creates strong downward thrust in gust winds.

Vertical wind turbines are difficult to mount on towers (like you see with horizontal wind turbines) and for that reason are often mounted low to the ground. This has a whole set of advantages and disadvantages.

With the wind turbines low the the ground, the generator and gear are also very low to the ground and are easily maintained. The ability to mount vertical wind turbines close the the ground is great in areas where tall structures are prohibited and in areas where the structures and terrain increase wind velocity.

Mounting the turbines low to the ground increases the chance of problems and exposes the turbines to lower wind speeds. Ground surface drag and objects reduce wind speed and cause turbulence which put the turbines at risk of pulsating torque, vibration, noise, and excessive bearing wear.

An alternative to mounting the vertical wind turbines near the ground is mounting them on the roof of a building. Many buildings are designed to help air flow over the roofs and wind turbines can use this extra wind to generate more power.


    0 of 8192 characters used
    Post Comment

    • Cobrafan profile imageAUTHOR


      8 years ago from Nowhere

      Thanks Sa'age :D

    • Sa`ge profile image


      8 years ago from Barefoot Island

      Once more a great hub. That last paragraph seems to be the answer. I think that more fine tuning on the designing of the blades will bring less stress, wear and tear. Great hubs you got on solar and wind power. :D hugs :D


    This website uses cookies

    As a user in the EEA, your approval is needed on a few things. To provide a better website experience, uses cookies (and other similar technologies) and may collect, process, and share personal data. Please choose which areas of our service you consent to our doing so.

    For more information on managing or withdrawing consents and how we handle data, visit our Privacy Policy at:

    Show Details
    HubPages Device IDThis is used to identify particular browsers or devices when the access the service, and is used for security reasons.
    LoginThis is necessary to sign in to the HubPages Service.
    Google RecaptchaThis is used to prevent bots and spam. (Privacy Policy)
    AkismetThis is used to detect comment spam. (Privacy Policy)
    HubPages Google AnalyticsThis is used to provide data on traffic to our website, all personally identifyable data is anonymized. (Privacy Policy)
    HubPages Traffic PixelThis is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized.
    Amazon Web ServicesThis is a cloud services platform that we used to host our service. (Privacy Policy)
    CloudflareThis is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. (Privacy Policy)
    Google Hosted LibrariesJavascript software libraries such as jQuery are loaded at endpoints on the or domains, for performance and efficiency reasons. (Privacy Policy)
    Google Custom SearchThis is feature allows you to search the site. (Privacy Policy)
    Google MapsSome articles have Google Maps embedded in them. (Privacy Policy)
    Google ChartsThis is used to display charts and graphs on articles and the author center. (Privacy Policy)
    Google AdSense Host APIThis service allows you to sign up for or associate a Google AdSense account with HubPages, so that you can earn money from ads on your articles. No data is shared unless you engage with this feature. (Privacy Policy)
    Google YouTubeSome articles have YouTube videos embedded in them. (Privacy Policy)
    VimeoSome articles have Vimeo videos embedded in them. (Privacy Policy)
    PaypalThis is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. No data is shared with Paypal unless you engage with this feature. (Privacy Policy)
    Facebook LoginYou can use this to streamline signing up for, or signing in to your Hubpages account. No data is shared with Facebook unless you engage with this feature. (Privacy Policy)
    MavenThis supports the Maven widget and search functionality. (Privacy Policy)
    Google AdSenseThis is an ad network. (Privacy Policy)
    Google DoubleClickGoogle provides ad serving technology and runs an ad network. (Privacy Policy)
    Index ExchangeThis is an ad network. (Privacy Policy)
    SovrnThis is an ad network. (Privacy Policy)
    Facebook AdsThis is an ad network. (Privacy Policy)
    Amazon Unified Ad MarketplaceThis is an ad network. (Privacy Policy)
    AppNexusThis is an ad network. (Privacy Policy)
    OpenxThis is an ad network. (Privacy Policy)
    Rubicon ProjectThis is an ad network. (Privacy Policy)
    TripleLiftThis is an ad network. (Privacy Policy)
    Say MediaWe partner with Say Media to deliver ad campaigns on our sites. (Privacy Policy)
    Remarketing PixelsWe may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites.
    Conversion Tracking PixelsWe may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.
    Author Google AnalyticsThis is used to provide traffic data and reports to the authors of articles on the HubPages Service. (Privacy Policy)
    ComscoreComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. Non-consent will result in ComScore only processing obfuscated personal data. (Privacy Policy)
    Amazon Tracking PixelSome articles display amazon products as part of the Amazon Affiliate program, this pixel provides traffic statistics for those products (Privacy Policy)