Flywheels as Energy Storage

The subject of energy storage is like anything else in technology: lots of entrants of completely different types that, over time are winnowed down, and ultimately, the “winners win and the losers lose.”  What happens next is that the losers are eventually forgotten.

IMO, that’s what’s happened to flywheels.  It’s been close to 15 years since I heard anyone use the word.

Of course, it’s possible to store energy in its kinetic form, but as battery technology has continued to improve in terms of both price and performance, things like flywheels have fallen away and died.

Here’s a webinar on the subject by a guy who doesn’t see this industry segment the same way I do.  I.e., he somehow believes that flywheels can and will serve in the charging of EVs.