Comprising at least one device for providing mechanical/electrical energy conversion utilizing materials with linear electromechanical interaction properties, a device providing intermediate storage and, a device providing primary storage. Where the energy is transferred by inductive coupling of an inner hub coil and an outer hub coil between said storage devices. Energy conversion and storage is initiated by motion of said energy converter which places the system operational. Then, mechanical energy is converted into electrical energy which is delivered to the intermediate storage device. When the intermediate storage device is charged, energy is transferred to the outer hub coil for inductive transmission to the inner hub coil. From the inner hub, energy is immediately transferred to the primary storage until the system is required to provide power to an external device or system. Replacing or supplementing conventional sources of power, this system may also provide for collecting and transmitting data.