Patent ID: 8727698

Claim:
A tower for producing energy, comprising a base extending upwardly from a foundation surface and having a central opening, a plurality of wind tunnels having a constant inner diameter connected with said central opening and extending radially from said base; a tower wall having a circular cross-sectional configuration extending upward from the base, said tower wall defining a hollow interior communicating with said base central opening, said tower wall including a first portion having a first interior radius; a throat portion positioned above the first portion and having a throat interior radius; and a second portion positioned above the throat portion and having a second interior radius, wherein the throat interior radius is less than both the first interior radius and the second interior radius and a thickness of said tower wall varies in accordance with a height of said tower wall at a given location along said tower wall so that said tower wall has a greatest thickness at said base, a smallest thickness between said base and an inlet to said tower and an intermediate thickness at said inlet to said tower; a water injection system configured to add moisture at a top of the tower to hot dry air so as to generate a downdraft of wind within the hollow interior of said tower wall which is delivered to said base central opening and to said wind tunnels; at least one turbine positioned within each wind tunnel for converting the wind into electricity.