Abstract: An electricity generating tower includes a tower wall whose inner radius profile has a hyperbolic shape for a least a portion thereof. Moisture is added to the top of the tower and mixes with air to generate a downdraft of wind within the interior of the tower. A base beneath the tower wall contains a plurality of radially extending wind tunnels each having a turbine arranged therein to convert the wind into electricity.

Abstract: In various embodiments, an apparatus for producing electricity includes a plurality of hydraulic-to-electric converters with each hydraulic-to-electric converters including a hydraulic motor coupled to a common high-pressure hydraulic line and a common low-pressure hydraulic line, a controllable hydraulic switch hydraulically coupled to each respective hydraulic motor, each controllable hydraulic switch being capable of controllably placing the respective hydraulic motor on-line by allowing flow of hydraulic fluid from the common high-pressure hydraulic line through its respective hydraulic motor or off-line by preventing flow of hydraulic fluid from the common high-pressure hydraulic line through its respective hydraulic motor, and an electric generator mechanically coupled to each respective hydraulic motor and configured to generate electricity when hydraulic fluid flows through the respective hydraulic motor.

Abstract: An apparatus for producing electricity includes a tower capable of adding moisture at the top of the tower to hot-dry air so as to generate a downdraft of wind within the interior of the tower, vanes coupled to the exterior of the tower that at least partially define a plurality of elongated pockets at the exterior of the tower, flaps located within the pockets configured to redirect incident wind downwards, and at least a first wind tunnel configured to receive the redirected incident wind so as to convert such wind to electricity.