What Is Energy Storage?Advantages of Combining Storage and SolarTypes of Energy StoragePumped-Storage HydropowerElectrochemical StorageThermal Energy StorageFlywheel StorageCompressed Air StorageSolar FuelsVirtual StorageA flywheel is a heavy wheel attached to a rotating shaft. Expending energy can make the wheel turn faster. This energy can be extracted by attaching the wheel to an electrical generator, which uses electromagnetism to slow the wheel down and produce electricity. Although flywheels can quickly provide power, they can''t store a lot of energy.See more on energy.govSunWatts
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