An ESS Energy Storage System is a technology designed to store energy for later use. It helps balance supply and demand in electrical grids by storing excess energy generated during low-demand periods and releasing it during high-demand times. This system is crucial for integrating renewable energy sources like solar and wind into the power grid. The ESS typically uses various storage technologies, such as lithium-ion batteries or flow batteries, to efficiently store and discharge energy. By improving energy reliability and reducing costs, ESS plays a vital role in enhancing the sustainability of energy systems worldwide.