Near Zero: Mechanical Flywheel Battery (UC Berkeley)

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NearZero

The Near Zero flywheel battery consists of a magnetically-levitated flywheel, combined with a motor, that can store and output energy like a traditional electrochemical cell. However, this design has almost no frictional losses, uses very little power in the magnetic levitation of the flywheel, and combined with high efficiency electronics, drastically outperforms chemical batteries in many ways. This flywheel battery is envisioned to replace inefficient and environmentally unsound use of “peaker plants” – power plants that only run when there is high demand for electricity.

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