While the energy storage capacity of grid batteries is still small compared to the other major form of grid storage, with 200 GW power and 9000 GWh energy storage worldwide as of 2025 according to , the battery market is catching up very fast in terms of power generation capacity as price drops.
A flywheel spins at 50,000 RPM in a vacuum chamber, storing kinetic energy like a hyper-caffeinated hamster wheel. Now add an FPGA – essentially a shape-shifting computer chip – controlling every microsecond of its operation. . Flywheel energy storage (FES) works by spinning a rotor (flywheel) and maintaining the energy in the system as rotational energy. When energy is extracted from the system, the flywheel's rotational speed is reduced as a consequence of the principle of conservation of energy; adding energy to the. . Electrical energy storage systems (EESSs) enable the transformation of electrical energy into other forms of energy, allowing electricity to be stored and reused when needed. These systems provide greater flexibility in the operation of the grid, as electrical energy can be stored and released. . There is noticeable progress in FESS, especially in utility, large-scale deployment for the electrical grid, and renewable energy applications. This paper gives a review of the recent developments in FESS technologies. Due to the highly interdisciplinary nature of FESSs, we survey different design. . Let's cut to the chase: If you're an engineer eyeballing FPGA flywheel energy storage systems, a renewable energy geek, or just someone who thinks spinning metal discs are cool, this article's for you. This innovative technology offers high efficiency and substantial environmental benefits.
