Airstream Innovations
Positive pressure greenhouse structures that are wind assisted, air supported, and ventilated. The invention is to use the pressure provided by the wind for inflating the greenhouse, rather than relying mostly on electric fans (although they may also be used at times when wind pressure is not sufficient). A tower ("scoop") captures the wind. Only a minimal or no frame is necessary. These greenhouses can be quite large and look rather futuristic: see video below for a half-acre greenhouse. The company even built a one-acre greenhouse.
Status and Assessment
The invention appears to be patented. The technology is interesting for the cultivation of high-value perennials, such as strawberries. Air flow inside the greenhouse is high, assisting with moisture control and pest suppression.
Videos