Vertical Axis Wind Turbines

Vertical Axis Wind Turbines (VAWTs) can be both small and large. However, they are not the mainstay of the wind industry and for that reason they are assigned a category under Small Wind Turbines on this site.

There is also an extensive collection of archival and recent photographs of VAWTs and various forms of Darrieus turbines on the Photos section of this site. There you can find photos of Vertical Axis Wind Turbines.

Small Turbine VAWTs and Rotor Loading

By

Paul Gipe

Below is summary of principle characteristics of mini- and household-size Vertical Axis Wind Turbines on the international market. It is not intended to include every VAWT marketed worldwide.

Clear Gif

Mag-Wind Pyramidal Power

By

Paul Gipe

The pyramids have always been thought to contain some magical power. Maybe they do. Maybe Mag-Wind has found a way to tap into this magical power, because they certainly are not going to get much electrical power from this contraption.

The Myths & Mysticism of Vertical Axis Wind Turbines

By

Mick Sagrillo

At least several times a year, yet another announcement about a “technological breakthrough” arrives in my e-mail box. Invariably, the device being “unveiled” is a vertical axis wind turbine, and in all likelihood, it is touted as an “urban rooftop wind generator.” Included with the excited chatter is an article or two published by some local newspaper. What is it with vertical axis wind turbines that bring out the nearly-lunatic fringe, both sellers and buyers?. .

EcoQuest International, WindTree, and AWEA Cease & Desist Order

By

False, Misleading and Deceptive Claims Regarding AWEA’s Purported Endorsement of WindTree Energy Generator

Chicago Offshore Wind Negates Crackpot Invention

By

Paul Gipe

An edited version of the following was read on National Public Radio’s Weekend Sunday program. Weekend Edition Sunday Re: Robbie …

Ventilators and Squirrels in a Cage

By

Paul Gipe

Like ducted turbines, a perennial favorite of hucksters and charlatans is, for lack of a better word, squirrel cage rotors.