PURPOSE: To obtain an averaged energy source, by utilizing the energy of a natural phenomenon, by stocking wind power energy with multiply-connected, multilayered and movable mills on which many pieces of spring are arranged.

CONSTITUTION: The stocking of wind power energy is done with multiple, multiply-connected and multilayer springs which are housed in a movable plant mechamism set up to container style. The arrangement of wind mills on which many pieces of spring are arranged is, for example, as follows. Springs are assembled to one body by arranging vertically a spring to 10 steps, and by arranging 10 bodies three-dimensionally to the right and left, leaving a space, between them, and thus the stocking of wind power by one thousand pieces of spring may be realized. Furthermore, it is possible to set the above configuration in a multilayer form, and this energy stocking assembly is portable. Therefore, it is allowed to use it as an averaged energy source by assembling them at a certain place.