Flywheels are one of the world's oldest forms of energy storage, but they could also be the future. This article examines flywheel technology, its benefits, and the research from Graz University of Technology. . Energy storage systems (ESS) play an essential role in providing continu-ous and high-quality power. ESSs store intermittent renewable energy to create reliable micro-grids that run continuously and efficiently distribute electricity by balancing the supply and the load [1]. The ex-isting energy. . In a quiet engineering lab in Europe, a cylindrical flywheel begins to spin inside a vacuum chamber. Its carbon-fiber rotor reaches thousands of revolutions per minute, humming with stored kinetic energy. Just a few meters away, a motor lifts a multi-tonne block of composite concrete along a rail. . The US government has punted on the renewable energy transition, but private sector investors are picking up the ball and running with it. The latest example is the Illinois investment firm Magnetar Finance, which has just surged $200 million in funding towards the flywheel energy storage innovator. . At the heart of this transformational journey lies the concept of energy storage, and one particular method is making waves: flywheel energy storage systems (FESS). This innovative approach harnesses kinetic energy to create a robust storage solution that addresses some major challenges faced by. . At its core, a flywheel is a rotating mechanical device designed to efficiently store energy. Unlike batteries that convert and store energy chemically, flywheels use kinetic energy to maintain energy balance. Energy storage has risen to prominence in the past decade as technologies like renewable. .
