en.Wedoany.com Reported - Amber Kinetics, a representative company in this field, has extended flywheel discharge time from seconds to hours through technological innovation, enabling a shift from grid frequency regulation to actual energy transfer. It captures excess renewable energy and releases it when needed.

Amber Kinetics began prototyping in Hawaii in 2017. The core of its system is a solid steel rotor that stores energy using rotational kinetic energy. The company reduces friction and resistance through a vacuum environment and magnetic levitation technology, achieving a four-hour discharge and improving energy density and efficiency. Compared to chemical batteries, this mechanical energy storage method boasts a longer lifespan, estimated at about 30 years, does not rely on rare minerals, and is environmentally friendly.

The company has deployed projects in multiple locations worldwide, including Hawaii, Massachusetts, California, and Florida in the USA; Chiba and Kashiwanoha in Japan; Lhasa, Tibet, China; and Victoria, Australia. At the De La Salle University campus in Laguna, Philippines, the flywheel energy storage system, commissioned in early 2020, operates as an innovation center, helping manage electricity demand and costs.

The flywheel energy storage system has demonstrated its stability in renewable energy grids, such as withstanding a 7.3-magnitude earthquake during testing in Japan. As technology advances, flywheels and batteries may work synergistically, forming a layered energy storage solution to support the energy transition.

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