Flywheel energy storage systems consist of a rotor (flywheel), a motor/generator, magnetic bearings, and a containment system. The rotor, typically made from advanced materials like carbon fiber, is enclosed in a vacuum chamber to minimize air friction. When energy is extracted from the system, the flywheel's rotational speed is reduced as a consequence of the principle of conservation of energy; adding energy to the. . The ex-isting energy storage systems use various technologies, including hydro-electricity, batteries, supercapacitors, thermal storage, energy storage flywheels,[2] and others. Primary candidates for. . Large synchronous flywheels are also used for energy storage, yet not to be mistaken with FESS. This mechanical battery (who needs chemicals.
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