SYSTEM AND METHOD FOR STORING HIGH CAPACITY ELECTRIC ENERGY

The disclosed embodiments provide a highly efficient, utility scale energy storage and retrieval system. The system is characterized by a chain of multiple rotating interconnected masses (), a hollow toroid-shaped housing (), plural pairs of permanent magnets (), magnets () and coils () for the charging and discharging of electric energy and is operated by an automated control system. The mass () chain is fitted and rotating inside the housing (), and the energy is stored into the rotational energy of the chain. The transformation of electrical energy into rotational energy or vice versa is carried out by using coil units (). In order to minimize losses, the chain is magnetically levitating and a vacuum is pumped into the housing ().