A system for obtaining air movement is disclosed which includes a dome which is supported a spaced distance above the earth to provide for the inlet of air from a location outside the dome. A passage or tunnel is provided which has an air inlet beneath the dome in substantially axial alignment with the dome axis and an air outlet outside the dome, with the passage or tunnel outlet below the level of the air inlet thereof. Cooling elements of refrigeration means are located in the passage or tunnel for cooling air therein and producing gravity flow of air down the passage or tunnel from the air inlet to the air outlet of the passage or tunnel. Air enters the passage or tunnel air inlet with a cyclonic motion due to Coriolis acceleration, and wind-operated means are located under the dome for operation by the cyclonically moving air. A generator is located in a chamber beneath the passage or tunnel and is coupled to the wind-operated means under the dome for operation thereby. A plurality of wind-operated means are located in the passage or tunnel for operation by downwardly flowing air in said passage or tunnel.