The resurgence of kinetic energy storage systems, particularly flywheels, is gaining traction as a reliable infrastructure for a renewable-heavy grid. Companies like Amber Kinetics are advancing the technology to allow for longer duration energy storage and the capturing of excess renewable generation, moving away from the current reliance on lithium and supply chains. By storing energy through spinning a solid steel rotor in a near-perfect vacuum using magnetic levitation, flywheels offer predictability, stability, and resilience to natural disasters, lasting up to 30 years. Their ability to reduce electricity costs, manage demand charges, and provide reliable, emission-free energy storage makes them a promising solution for regions with unique challenges like high altitudes. The future of energy storage may involve a combination of flywheels and batteries to address each other's limitations, offering a sustainable and efficient approach to meeting energy demands.