First Green Tower Powered by Solar and Wind Energy

Smith and Gordon Gill have created the Clean Technology Tower concept.They propose to to have wind turbines positioned at the corners of the building to harness the high velocity winds that accelerate around the top of the tower.A domed double roof cavity positioned at the apex, where wind speeds are at a maximum, a domed double roof cavity directs the wind towards an array of wind turbines.

This tower includes over 1.8 million square feet of office space along with a 300,000 square foot hotel, a spa and street-level retail rounding off the complex.
The negative pressure created by the turbines will be used to ventilate interior spaces. The dome itself is shaded by solar cells that capture the southern sun.