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Flywheel energy storage is advancing through demand from utilities, data centers, transportation, and industrial sectors. Its unique strengths in reliability and rapid discharge ensure stable, long-term growth across diverse applications.
A grid-scale flywheel energy storage system is able to respond to grid operator control signal in seconds and able to absorb the power fluctuation for as long as 15 minutes. Flywheel storage has proven to be useful in trams.
Utility will dominate with a 46.8% market share in 2025. The flywheel energy storage market is projected to reach USD 1.3 billion in 2025 and expand to USD 2.0 billion by 2035, advancing at a CAGR of 4.2 % during this period.
China has the largest grid-scale flywheel energy storage plant in the world with 30 MW capacity. The system was connected to the grid in 2024 and it was the first such system in China. In the United States, Beacon Power operates two 20 MW grid-scale flywheel energy storage plants in Stephentown, New York and Hazle Township, Pennsylvania.
