Abstract: Energy storage device comprising a flywheel a stator arrangement and a housing. The flywheel, rotatably mounted around a rotation axis, comprises a shaft, a plurality of adjacent magnetic plates with magnetic poles, two kinetic plates, sandwiching the magnetic plates. The magnetic plates and kinetic plates are rotationally rigid with said shaft. The stator arrangement comprises a plurality of induction coils cooperating with the magnetic poles.

Abstract: Autonomous system for generating electricity comprising energy storage through an inertial flywheel. This system includes an engine/generator assembly having a heat engine, a mechanical speed variator, a clutch, a flywheel and a generator. The assembly composed of the clutch, the flywheel and the generator is placed in an evacuated enclosure so as to reduce energy losses. This system is intended to be installed directly in the buildings where the energy is used, such as for example, in detached houses. The system makes it possible to dispense with a link to the electrical economical in use than the systems of the same type which are already known.

Abstract: Autonomous system for generating electricity comprising energy storage by inertial flywheel.