Concentrators, Diffusers, Augmenters

 There are also several design ideas that concentrate the wind in various ways, generating electricity with a turbine or turbines at the point where the wind is fastest.

These are sometimes called concentrators, diffusers or augmenters: whatever the name, the basic idea is the same.

[picture: Strathclyde wind/solar units]

[picture: Aeolian roof?]