Complex sentence: An integer generator is used to charge and discharge the flywheel.Flywheel store small as well as large amount of energy so, for small once integer motor is used and for larger one generator is used.
Split into simpler sentences: An integer generator is used to charge and discharge the flywheel. Flywheels store small as well as large amount of energy so, for small once integer motor is used and for larger one generator is used.