Abstract: Pivotal jet wind turbine relates to clean energy field. It has a rim based rotor's structure. The rotor has plurality of outer-blades and plurality of inner-blades attached to the rotating rim. The roller based components suspend the rotor and transmit the rotational energy to generator(s). The central, pivotal part of the rotor is in full free from any mechanical or aerodynamic components or parts. This open zone constitutes a giant nozzle, producing an air-jet increasing the turbine's efficiency.