Energy storage technologies play a crucial role in modernizing and stabilizing power grids. These systems store excess energy generated during periods of low demand and release it during peak demand, ensuring a consistent and reliable energy supply. Battery storage is a prominent technology, with lithium-ion batteries being widely used for their efficiency and scalability. Pumped hydro storage is another significant energy storage method, utilizing the gravitational potential energy of water. During surplus electricity periods, water is pumped to a higher elevation and released to generate electricity during high-demand periods. Flywheel energy storage systems store energy as rotational kinetic energy, releasing it as needed. Compressed air energy storage involves pressurizing air during low-demand times and releasing it to drive turbines during peak demand. Thermal energy storage, utilizing materials that can store and release heat, is effective in residential and industrial applications. Emerging technologies like flow batteries and advanced capacitors hold promise for further enhancing energy storage capacities and efficiency, contributing to a more resilient and sustainable energy infrastructure.