NOVELTY - Multiple cantilevers (102) have electrodes and piezoelectric material. An air jet tunnel (106) has a frame (104) having multiple air outlet windows having a window edge. Each of outlet windows is sized for receiving one of the cantilevers. The air jet tunnel configured so that when an air intake flow (125) flows in the direction towards the air intake opening, a portion of the air intake flow then passes through the outlet windows creating air outtake flows (133), the air outtake flows causing stress and strain in each of the cantilevers to generate power in each of cantilever.    USE - Air flow energy to power conversion system or wind energy to power (WEP) system.    ADVANTAGE - No rotating blades or mechanical moving portions are involved in the WEP system. The WEP system is very quiet because no mechanical moving parts are involved that are the main sources of sound vibration and the cantilever arrays are made of a piezoelectric polymer that does not generate a sound frequency perceptible by humans. The unique phononic structure design and sound shielding case will effectively prohibit sound propagation. The WEP system is assembled with a basic repeatable and modular small units that serves as building blocks to be integrated into any size or shape to provide a wind power generator. The unique WEP design including its cascading phononic array and air jet tunnel configuration, the poly vinylidene fluoride (PVDF)-brass-PVDF sandwich cantilevers, the high surface area ratio of cantilevers to inside walls, the specific ratio of air intake window to air outlet window, and the aspect ratio to ensure that the WEP system can have a very high energy conversion efficiency. The WEP technology does not require expensive equipments and micro structure fabrication processes. WEP technology is low in maintenance, highly durable and very cost effective. All the materials used are light and strong, such as the air jet tunnel, the frame and case materials. A compact, modular power unit design is provided. The power conversion system represents a major advance in the conversion of wind energy to electric power and leads to more efficient, less costly wind generators. The generators can be less noisy, more efficient, less costly and more adaptable. The systems can well represent the future of wind energy converters since they can be able to lower the cost of wind power to a level more competitive with fossil fuels. The system includes higher electrical conversion efficiency, lower cost of manufacture, lower maintenance cost due to the lack of mechanical moving portions, longer life, and greater adaptability due to the modular design.    DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of an air jet tunnel.    Cantilever (102)    Frame (104)    Air jet tunnel (106)    Air intake flow (125)    Air outtake flow (133)