When did we start using flywheels to store energy?



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    Flywheels have long been used to help run engines and other machinery. But the potential of the flywheel for long-term energy storage is a newer field of interest that seems to have risen in the 1990s and 2000s. This article tells the story of one engineer who’s been exploring the flywheel for power storage since the 1970s. (Playing a supporting role is none other than actor Kevin Costner!)

    Engineers at various companies have been experimenting with the device, but it looks like we’re some years away from widespread, practical flywheel power storage applications.

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