> Flywheel motors have often been compared to capacitors, capable of quickly storing and releasing energy. Proponents cite weight, cost, and environmental advan

> Flywheel motors have often been compared to capacitors, capable of quickly storing and releasing energy. Proponents cite weight, cost, and environmental advantages over traditional chemical-battery hybrids. --- See also: https://hackaday.com/2021/05/30/bicycle-flywheel-stores-a-bit-of-energy-not-much/ https://hackaday.com/2021/05/30/bicycle-flywheel-stores-a-bi... https://en.wikipedia.org/wiki/Dual-mass_flywheel https://en.wikipedia.org/wiki/Dual-mass_flywheel