The kinetic energy is a form of energy owned by a body in virtue of its movement and it varies in proportion to the square of speed. The kinetic energy of a body can be mathematically expressed by the semi-product of its mass for the square of its speed.

For the law of kinetic energy, the speed of the wind represents a crucial factor in the efficiency of Eolic generators and speed of the wind grows with the distance from the ground; however, the designing of Eolic generators with horizontal rotation axis puts structural severe limits in the diameter of shovels as well as in the height of towers.

The growing in height of the structure and set-up of big diameter rotors are in fact cause of static complication, exposing to risk the structure in case of sudden and very strong wind gusts.

Normally, a traditional Eolic generator is projected to work at a max. height of approx. 80 metres where the speed of the wind has a medium value of 4,6 metres/second.