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To store electricity, we know the battery, pumped storage energy transfer stations (STEP) or even compressed air. Little known to the general public, the flywheel also allows electricity to be accumulated via kinetic energy. The concept is very simple, it consists of putting a heavy mass in rotation while reducing friction as much as possible. An electric motor coupled to the axis allows "recharging" by accelerating the rotation or "discharging" by producing electricity by slowing down the rotation. We visited the small Energiestro factory, one of the rare manufacturers of flywheels intended for electricity storage, located in Belfort. ???? To support us, you can give us a thumbs up and subscribe to the channel. ???? Don't forget to activate notifications to be informed of our next videos. ❤️ Thank you! To find out everything about renewable energies ⚡️☀️????????????: https://www.revolution-energetique.com/ ???? Discuss on the forum with energy enthusiasts and individuals who produce their own renewable electricity: https://forums.revolution-energetique... ???? Want to follow the latest news on renewable energies? www.revolution-energetique.com ???? Energy Revolution, the information site on the energy transition ???? ???? Videos ???? Articles ???? Files ⚡ Guides ???? Also find us on social networks: Facebook: / revolutionenergetique Twitter: / revolutionenerg Instagram: / revolution_energetique Linkedin: / révolution-énergétique Summary: 0:00 • Introduction 0:11 • Credits 0:28 • “Hello to receive us” ???? 0:20 • Principle of a flywheel 4:10 • Manufacturing of a flywheel 9:09 • Storage capacity 10:50 • Test wells 15:57 • Advantages of the flywheel